mirror of
https://github.com/c64scene-ar/llvm-6502.git
synced 2025-10-31 08:16:47 +00:00
e56764bad1
This patch replaces the hard coded GPR pair [R0, R1] of Intrinsic:arm_ldrexd and [R2, R3] of Intrinsic:arm_strexd with even/odd GPRPair reg class. Similar to the lowering of atomic_64 operation. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@168207 91177308-0d34-0410-b5e6-96231b3b80d8
7840 lines
297 KiB
C++
7840 lines
297 KiB
C++
//===-- ARMAsmParser.cpp - Parse ARM assembly to MCInst instructions ------===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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#include "MCTargetDesc/ARMBaseInfo.h"
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#include "MCTargetDesc/ARMAddressingModes.h"
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#include "MCTargetDesc/ARMMCExpr.h"
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#include "llvm/MC/MCParser/MCAsmLexer.h"
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#include "llvm/MC/MCParser/MCAsmParser.h"
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#include "llvm/MC/MCParser/MCParsedAsmOperand.h"
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#include "llvm/MC/MCAsmInfo.h"
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#include "llvm/MC/MCContext.h"
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#include "llvm/MC/MCStreamer.h"
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#include "llvm/MC/MCExpr.h"
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#include "llvm/MC/MCInst.h"
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#include "llvm/MC/MCInstrDesc.h"
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#include "llvm/MC/MCRegisterInfo.h"
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#include "llvm/MC/MCSubtargetInfo.h"
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#include "llvm/MC/MCTargetAsmParser.h"
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#include "llvm/Support/MathExtras.h"
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#include "llvm/Support/SourceMgr.h"
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#include "llvm/Support/TargetRegistry.h"
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#include "llvm/Support/raw_ostream.h"
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#include "llvm/ADT/BitVector.h"
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#include "llvm/ADT/OwningPtr.h"
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#include "llvm/ADT/STLExtras.h"
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#include "llvm/ADT/SmallVector.h"
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#include "llvm/ADT/StringSwitch.h"
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#include "llvm/ADT/Twine.h"
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using namespace llvm;
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namespace {
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class ARMOperand;
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enum VectorLaneTy { NoLanes, AllLanes, IndexedLane };
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class ARMAsmParser : public MCTargetAsmParser {
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MCSubtargetInfo &STI;
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MCAsmParser &Parser;
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const MCRegisterInfo *MRI;
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// Map of register aliases registers via the .req directive.
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StringMap<unsigned> RegisterReqs;
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struct {
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ARMCC::CondCodes Cond; // Condition for IT block.
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unsigned Mask:4; // Condition mask for instructions.
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// Starting at first 1 (from lsb).
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// '1' condition as indicated in IT.
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// '0' inverse of condition (else).
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// Count of instructions in IT block is
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// 4 - trailingzeroes(mask)
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bool FirstCond; // Explicit flag for when we're parsing the
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// First instruction in the IT block. It's
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// implied in the mask, so needs special
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// handling.
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unsigned CurPosition; // Current position in parsing of IT
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// block. In range [0,3]. Initialized
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// according to count of instructions in block.
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// ~0U if no active IT block.
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} ITState;
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bool inITBlock() { return ITState.CurPosition != ~0U;}
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void forwardITPosition() {
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if (!inITBlock()) return;
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// Move to the next instruction in the IT block, if there is one. If not,
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// mark the block as done.
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unsigned TZ = CountTrailingZeros_32(ITState.Mask);
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if (++ITState.CurPosition == 5 - TZ)
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ITState.CurPosition = ~0U; // Done with the IT block after this.
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}
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MCAsmParser &getParser() const { return Parser; }
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MCAsmLexer &getLexer() const { return Parser.getLexer(); }
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bool Warning(SMLoc L, const Twine &Msg,
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ArrayRef<SMRange> Ranges = ArrayRef<SMRange>()) {
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return Parser.Warning(L, Msg, Ranges);
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}
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bool Error(SMLoc L, const Twine &Msg,
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ArrayRef<SMRange> Ranges = ArrayRef<SMRange>()) {
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return Parser.Error(L, Msg, Ranges);
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}
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int tryParseRegister();
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bool tryParseRegisterWithWriteBack(SmallVectorImpl<MCParsedAsmOperand*> &);
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int tryParseShiftRegister(SmallVectorImpl<MCParsedAsmOperand*> &);
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bool parseRegisterList(SmallVectorImpl<MCParsedAsmOperand*> &);
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bool parseMemory(SmallVectorImpl<MCParsedAsmOperand*> &);
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bool parseOperand(SmallVectorImpl<MCParsedAsmOperand*> &, StringRef Mnemonic);
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bool parsePrefix(ARMMCExpr::VariantKind &RefKind);
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bool parseMemRegOffsetShift(ARM_AM::ShiftOpc &ShiftType,
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unsigned &ShiftAmount);
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bool parseDirectiveWord(unsigned Size, SMLoc L);
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bool parseDirectiveThumb(SMLoc L);
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bool parseDirectiveARM(SMLoc L);
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bool parseDirectiveThumbFunc(SMLoc L);
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bool parseDirectiveCode(SMLoc L);
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bool parseDirectiveSyntax(SMLoc L);
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bool parseDirectiveReq(StringRef Name, SMLoc L);
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bool parseDirectiveUnreq(SMLoc L);
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bool parseDirectiveArch(SMLoc L);
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bool parseDirectiveEabiAttr(SMLoc L);
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StringRef splitMnemonic(StringRef Mnemonic, unsigned &PredicationCode,
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bool &CarrySetting, unsigned &ProcessorIMod,
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StringRef &ITMask);
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void getMnemonicAcceptInfo(StringRef Mnemonic, bool &CanAcceptCarrySet,
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bool &CanAcceptPredicationCode);
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bool isThumb() const {
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// FIXME: Can tablegen auto-generate this?
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return (STI.getFeatureBits() & ARM::ModeThumb) != 0;
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}
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bool isThumbOne() const {
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return isThumb() && (STI.getFeatureBits() & ARM::FeatureThumb2) == 0;
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}
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bool isThumbTwo() const {
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return isThumb() && (STI.getFeatureBits() & ARM::FeatureThumb2);
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}
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bool hasV6Ops() const {
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return STI.getFeatureBits() & ARM::HasV6Ops;
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}
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bool hasV7Ops() const {
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return STI.getFeatureBits() & ARM::HasV7Ops;
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}
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void SwitchMode() {
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unsigned FB = ComputeAvailableFeatures(STI.ToggleFeature(ARM::ModeThumb));
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setAvailableFeatures(FB);
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}
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bool isMClass() const {
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return STI.getFeatureBits() & ARM::FeatureMClass;
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}
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/// @name Auto-generated Match Functions
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/// {
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#define GET_ASSEMBLER_HEADER
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#include "ARMGenAsmMatcher.inc"
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/// }
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OperandMatchResultTy parseITCondCode(SmallVectorImpl<MCParsedAsmOperand*>&);
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OperandMatchResultTy parseCoprocNumOperand(
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SmallVectorImpl<MCParsedAsmOperand*>&);
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OperandMatchResultTy parseCoprocRegOperand(
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SmallVectorImpl<MCParsedAsmOperand*>&);
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OperandMatchResultTy parseCoprocOptionOperand(
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SmallVectorImpl<MCParsedAsmOperand*>&);
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OperandMatchResultTy parseMemBarrierOptOperand(
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SmallVectorImpl<MCParsedAsmOperand*>&);
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OperandMatchResultTy parseProcIFlagsOperand(
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SmallVectorImpl<MCParsedAsmOperand*>&);
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OperandMatchResultTy parseMSRMaskOperand(
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SmallVectorImpl<MCParsedAsmOperand*>&);
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OperandMatchResultTy parsePKHImm(SmallVectorImpl<MCParsedAsmOperand*> &O,
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StringRef Op, int Low, int High);
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OperandMatchResultTy parsePKHLSLImm(SmallVectorImpl<MCParsedAsmOperand*> &O) {
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return parsePKHImm(O, "lsl", 0, 31);
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}
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OperandMatchResultTy parsePKHASRImm(SmallVectorImpl<MCParsedAsmOperand*> &O) {
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return parsePKHImm(O, "asr", 1, 32);
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}
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OperandMatchResultTy parseSetEndImm(SmallVectorImpl<MCParsedAsmOperand*>&);
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OperandMatchResultTy parseShifterImm(SmallVectorImpl<MCParsedAsmOperand*>&);
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OperandMatchResultTy parseRotImm(SmallVectorImpl<MCParsedAsmOperand*>&);
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OperandMatchResultTy parseBitfield(SmallVectorImpl<MCParsedAsmOperand*>&);
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OperandMatchResultTy parsePostIdxReg(SmallVectorImpl<MCParsedAsmOperand*>&);
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OperandMatchResultTy parseAM3Offset(SmallVectorImpl<MCParsedAsmOperand*>&);
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OperandMatchResultTy parseFPImm(SmallVectorImpl<MCParsedAsmOperand*>&);
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OperandMatchResultTy parseVectorList(SmallVectorImpl<MCParsedAsmOperand*>&);
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OperandMatchResultTy parseVectorLane(VectorLaneTy &LaneKind, unsigned &Index);
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// Asm Match Converter Methods
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void cvtT2LdrdPre(MCInst &Inst, const SmallVectorImpl<MCParsedAsmOperand*> &);
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void cvtT2StrdPre(MCInst &Inst, const SmallVectorImpl<MCParsedAsmOperand*> &);
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void cvtLdWriteBackRegT2AddrModeImm8(MCInst &Inst,
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const SmallVectorImpl<MCParsedAsmOperand*> &);
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void cvtStWriteBackRegT2AddrModeImm8(MCInst &Inst,
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const SmallVectorImpl<MCParsedAsmOperand*> &);
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void cvtLdWriteBackRegAddrMode2(MCInst &Inst,
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const SmallVectorImpl<MCParsedAsmOperand*> &);
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void cvtLdWriteBackRegAddrModeImm12(MCInst &Inst,
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const SmallVectorImpl<MCParsedAsmOperand*> &);
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void cvtStWriteBackRegAddrModeImm12(MCInst &Inst,
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const SmallVectorImpl<MCParsedAsmOperand*> &);
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void cvtStWriteBackRegAddrMode2(MCInst &Inst,
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const SmallVectorImpl<MCParsedAsmOperand*> &);
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void cvtStWriteBackRegAddrMode3(MCInst &Inst,
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const SmallVectorImpl<MCParsedAsmOperand*> &);
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void cvtLdExtTWriteBackImm(MCInst &Inst,
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const SmallVectorImpl<MCParsedAsmOperand*> &);
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void cvtLdExtTWriteBackReg(MCInst &Inst,
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const SmallVectorImpl<MCParsedAsmOperand*> &);
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void cvtStExtTWriteBackImm(MCInst &Inst,
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const SmallVectorImpl<MCParsedAsmOperand*> &);
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void cvtStExtTWriteBackReg(MCInst &Inst,
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const SmallVectorImpl<MCParsedAsmOperand*> &);
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void cvtLdrdPre(MCInst &Inst, const SmallVectorImpl<MCParsedAsmOperand*> &);
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void cvtStrdPre(MCInst &Inst, const SmallVectorImpl<MCParsedAsmOperand*> &);
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void cvtLdWriteBackRegAddrMode3(MCInst &Inst,
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const SmallVectorImpl<MCParsedAsmOperand*> &);
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void cvtThumbMultiply(MCInst &Inst,
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const SmallVectorImpl<MCParsedAsmOperand*> &);
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void cvtVLDwbFixed(MCInst &Inst,
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const SmallVectorImpl<MCParsedAsmOperand*> &);
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void cvtVLDwbRegister(MCInst &Inst,
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const SmallVectorImpl<MCParsedAsmOperand*> &);
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void cvtVSTwbFixed(MCInst &Inst,
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const SmallVectorImpl<MCParsedAsmOperand*> &);
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void cvtVSTwbRegister(MCInst &Inst,
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const SmallVectorImpl<MCParsedAsmOperand*> &);
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bool validateInstruction(MCInst &Inst,
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const SmallVectorImpl<MCParsedAsmOperand*> &Ops);
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bool processInstruction(MCInst &Inst,
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const SmallVectorImpl<MCParsedAsmOperand*> &Ops);
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bool shouldOmitCCOutOperand(StringRef Mnemonic,
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SmallVectorImpl<MCParsedAsmOperand*> &Operands);
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public:
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enum ARMMatchResultTy {
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Match_RequiresITBlock = FIRST_TARGET_MATCH_RESULT_TY,
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Match_RequiresNotITBlock,
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Match_RequiresV6,
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Match_RequiresThumb2,
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#define GET_OPERAND_DIAGNOSTIC_TYPES
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#include "ARMGenAsmMatcher.inc"
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};
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ARMAsmParser(MCSubtargetInfo &_STI, MCAsmParser &_Parser)
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: MCTargetAsmParser(), STI(_STI), Parser(_Parser) {
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MCAsmParserExtension::Initialize(_Parser);
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// Cache the MCRegisterInfo.
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MRI = &getContext().getRegisterInfo();
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// Initialize the set of available features.
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setAvailableFeatures(ComputeAvailableFeatures(STI.getFeatureBits()));
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// Not in an ITBlock to start with.
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ITState.CurPosition = ~0U;
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}
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// Implementation of the MCTargetAsmParser interface:
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bool ParseRegister(unsigned &RegNo, SMLoc &StartLoc, SMLoc &EndLoc);
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bool ParseInstruction(ParseInstructionInfo &Info, StringRef Name,
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SMLoc NameLoc,
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SmallVectorImpl<MCParsedAsmOperand*> &Operands);
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bool ParseDirective(AsmToken DirectiveID);
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unsigned checkTargetMatchPredicate(MCInst &Inst);
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bool MatchAndEmitInstruction(SMLoc IDLoc, unsigned &Opcode,
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SmallVectorImpl<MCParsedAsmOperand*> &Operands,
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MCStreamer &Out, unsigned &ErrorInfo,
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bool MatchingInlineAsm);
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};
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} // end anonymous namespace
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namespace {
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/// ARMOperand - Instances of this class represent a parsed ARM machine
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/// instruction.
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class ARMOperand : public MCParsedAsmOperand {
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enum KindTy {
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k_CondCode,
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k_CCOut,
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k_ITCondMask,
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k_CoprocNum,
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k_CoprocReg,
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k_CoprocOption,
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k_Immediate,
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k_MemBarrierOpt,
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k_Memory,
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k_PostIndexRegister,
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k_MSRMask,
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k_ProcIFlags,
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k_VectorIndex,
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k_Register,
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k_RegisterList,
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k_DPRRegisterList,
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k_SPRRegisterList,
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k_VectorList,
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k_VectorListAllLanes,
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k_VectorListIndexed,
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k_ShiftedRegister,
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k_ShiftedImmediate,
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k_ShifterImmediate,
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k_RotateImmediate,
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k_BitfieldDescriptor,
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k_Token
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} Kind;
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SMLoc StartLoc, EndLoc;
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SmallVector<unsigned, 8> Registers;
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union {
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struct {
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ARMCC::CondCodes Val;
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} CC;
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struct {
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unsigned Val;
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} Cop;
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struct {
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unsigned Val;
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} CoprocOption;
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struct {
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unsigned Mask:4;
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} ITMask;
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struct {
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ARM_MB::MemBOpt Val;
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} MBOpt;
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struct {
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ARM_PROC::IFlags Val;
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} IFlags;
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struct {
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unsigned Val;
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} MMask;
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struct {
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const char *Data;
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unsigned Length;
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} Tok;
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struct {
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unsigned RegNum;
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} Reg;
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// A vector register list is a sequential list of 1 to 4 registers.
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struct {
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unsigned RegNum;
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unsigned Count;
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unsigned LaneIndex;
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bool isDoubleSpaced;
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} VectorList;
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struct {
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unsigned Val;
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} VectorIndex;
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struct {
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const MCExpr *Val;
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} Imm;
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/// Combined record for all forms of ARM address expressions.
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struct {
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unsigned BaseRegNum;
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// Offset is in OffsetReg or OffsetImm. If both are zero, no offset
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// was specified.
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const MCConstantExpr *OffsetImm; // Offset immediate value
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unsigned OffsetRegNum; // Offset register num, when OffsetImm == NULL
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ARM_AM::ShiftOpc ShiftType; // Shift type for OffsetReg
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unsigned ShiftImm; // shift for OffsetReg.
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unsigned Alignment; // 0 = no alignment specified
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// n = alignment in bytes (2, 4, 8, 16, or 32)
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unsigned isNegative : 1; // Negated OffsetReg? (~'U' bit)
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} Memory;
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struct {
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unsigned RegNum;
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bool isAdd;
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ARM_AM::ShiftOpc ShiftTy;
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unsigned ShiftImm;
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} PostIdxReg;
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struct {
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bool isASR;
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unsigned Imm;
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} ShifterImm;
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struct {
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ARM_AM::ShiftOpc ShiftTy;
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unsigned SrcReg;
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unsigned ShiftReg;
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unsigned ShiftImm;
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} RegShiftedReg;
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struct {
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ARM_AM::ShiftOpc ShiftTy;
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unsigned SrcReg;
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unsigned ShiftImm;
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} RegShiftedImm;
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struct {
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unsigned Imm;
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} RotImm;
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struct {
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unsigned LSB;
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unsigned Width;
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} Bitfield;
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};
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ARMOperand(KindTy K) : MCParsedAsmOperand(), Kind(K) {}
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public:
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ARMOperand(const ARMOperand &o) : MCParsedAsmOperand() {
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Kind = o.Kind;
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StartLoc = o.StartLoc;
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EndLoc = o.EndLoc;
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switch (Kind) {
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case k_CondCode:
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CC = o.CC;
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break;
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case k_ITCondMask:
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ITMask = o.ITMask;
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break;
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case k_Token:
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Tok = o.Tok;
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break;
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case k_CCOut:
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case k_Register:
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Reg = o.Reg;
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break;
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case k_RegisterList:
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case k_DPRRegisterList:
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case k_SPRRegisterList:
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Registers = o.Registers;
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break;
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case k_VectorList:
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case k_VectorListAllLanes:
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case k_VectorListIndexed:
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VectorList = o.VectorList;
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break;
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case k_CoprocNum:
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case k_CoprocReg:
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Cop = o.Cop;
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break;
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case k_CoprocOption:
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CoprocOption = o.CoprocOption;
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break;
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case k_Immediate:
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Imm = o.Imm;
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break;
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case k_MemBarrierOpt:
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MBOpt = o.MBOpt;
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break;
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case k_Memory:
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Memory = o.Memory;
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break;
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case k_PostIndexRegister:
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PostIdxReg = o.PostIdxReg;
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break;
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case k_MSRMask:
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MMask = o.MMask;
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break;
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case k_ProcIFlags:
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IFlags = o.IFlags;
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break;
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case k_ShifterImmediate:
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ShifterImm = o.ShifterImm;
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break;
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case k_ShiftedRegister:
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RegShiftedReg = o.RegShiftedReg;
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break;
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case k_ShiftedImmediate:
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RegShiftedImm = o.RegShiftedImm;
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break;
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case k_RotateImmediate:
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RotImm = o.RotImm;
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break;
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case k_BitfieldDescriptor:
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Bitfield = o.Bitfield;
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break;
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case k_VectorIndex:
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VectorIndex = o.VectorIndex;
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break;
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}
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}
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|
|
/// getStartLoc - Get the location of the first token of this operand.
|
|
SMLoc getStartLoc() const { return StartLoc; }
|
|
/// getEndLoc - Get the location of the last token of this operand.
|
|
SMLoc getEndLoc() const { return EndLoc; }
|
|
/// getLocRange - Get the range between the first and last token of this
|
|
/// operand.
|
|
SMRange getLocRange() const { return SMRange(StartLoc, EndLoc); }
|
|
|
|
ARMCC::CondCodes getCondCode() const {
|
|
assert(Kind == k_CondCode && "Invalid access!");
|
|
return CC.Val;
|
|
}
|
|
|
|
unsigned getCoproc() const {
|
|
assert((Kind == k_CoprocNum || Kind == k_CoprocReg) && "Invalid access!");
|
|
return Cop.Val;
|
|
}
|
|
|
|
StringRef getToken() const {
|
|
assert(Kind == k_Token && "Invalid access!");
|
|
return StringRef(Tok.Data, Tok.Length);
|
|
}
|
|
|
|
unsigned getReg() const {
|
|
assert((Kind == k_Register || Kind == k_CCOut) && "Invalid access!");
|
|
return Reg.RegNum;
|
|
}
|
|
|
|
const SmallVectorImpl<unsigned> &getRegList() const {
|
|
assert((Kind == k_RegisterList || Kind == k_DPRRegisterList ||
|
|
Kind == k_SPRRegisterList) && "Invalid access!");
|
|
return Registers;
|
|
}
|
|
|
|
const MCExpr *getImm() const {
|
|
assert(isImm() && "Invalid access!");
|
|
return Imm.Val;
|
|
}
|
|
|
|
unsigned getVectorIndex() const {
|
|
assert(Kind == k_VectorIndex && "Invalid access!");
|
|
return VectorIndex.Val;
|
|
}
|
|
|
|
ARM_MB::MemBOpt getMemBarrierOpt() const {
|
|
assert(Kind == k_MemBarrierOpt && "Invalid access!");
|
|
return MBOpt.Val;
|
|
}
|
|
|
|
ARM_PROC::IFlags getProcIFlags() const {
|
|
assert(Kind == k_ProcIFlags && "Invalid access!");
|
|
return IFlags.Val;
|
|
}
|
|
|
|
unsigned getMSRMask() const {
|
|
assert(Kind == k_MSRMask && "Invalid access!");
|
|
return MMask.Val;
|
|
}
|
|
|
|
bool isCoprocNum() const { return Kind == k_CoprocNum; }
|
|
bool isCoprocReg() const { return Kind == k_CoprocReg; }
|
|
bool isCoprocOption() const { return Kind == k_CoprocOption; }
|
|
bool isCondCode() const { return Kind == k_CondCode; }
|
|
bool isCCOut() const { return Kind == k_CCOut; }
|
|
bool isITMask() const { return Kind == k_ITCondMask; }
|
|
bool isITCondCode() const { return Kind == k_CondCode; }
|
|
bool isImm() const { return Kind == k_Immediate; }
|
|
bool isFPImm() const {
|
|
if (!isImm()) return false;
|
|
const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
|
|
if (!CE) return false;
|
|
int Val = ARM_AM::getFP32Imm(APInt(32, CE->getValue()));
|
|
return Val != -1;
|
|
}
|
|
bool isFBits16() const {
|
|
if (!isImm()) return false;
|
|
const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
|
|
if (!CE) return false;
|
|
int64_t Value = CE->getValue();
|
|
return Value >= 0 && Value <= 16;
|
|
}
|
|
bool isFBits32() const {
|
|
if (!isImm()) return false;
|
|
const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
|
|
if (!CE) return false;
|
|
int64_t Value = CE->getValue();
|
|
return Value >= 1 && Value <= 32;
|
|
}
|
|
bool isImm8s4() const {
|
|
if (!isImm()) return false;
|
|
const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
|
|
if (!CE) return false;
|
|
int64_t Value = CE->getValue();
|
|
return ((Value & 3) == 0) && Value >= -1020 && Value <= 1020;
|
|
}
|
|
bool isImm0_1020s4() const {
|
|
if (!isImm()) return false;
|
|
const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
|
|
if (!CE) return false;
|
|
int64_t Value = CE->getValue();
|
|
return ((Value & 3) == 0) && Value >= 0 && Value <= 1020;
|
|
}
|
|
bool isImm0_508s4() const {
|
|
if (!isImm()) return false;
|
|
const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
|
|
if (!CE) return false;
|
|
int64_t Value = CE->getValue();
|
|
return ((Value & 3) == 0) && Value >= 0 && Value <= 508;
|
|
}
|
|
bool isImm0_508s4Neg() const {
|
|
if (!isImm()) return false;
|
|
const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
|
|
if (!CE) return false;
|
|
int64_t Value = -CE->getValue();
|
|
// explicitly exclude zero. we want that to use the normal 0_508 version.
|
|
return ((Value & 3) == 0) && Value > 0 && Value <= 508;
|
|
}
|
|
bool isImm0_255() const {
|
|
if (!isImm()) return false;
|
|
const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
|
|
if (!CE) return false;
|
|
int64_t Value = CE->getValue();
|
|
return Value >= 0 && Value < 256;
|
|
}
|
|
bool isImm0_4095() const {
|
|
if (!isImm()) return false;
|
|
const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
|
|
if (!CE) return false;
|
|
int64_t Value = CE->getValue();
|
|
return Value >= 0 && Value < 4096;
|
|
}
|
|
bool isImm0_4095Neg() const {
|
|
if (!isImm()) return false;
|
|
const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
|
|
if (!CE) return false;
|
|
int64_t Value = -CE->getValue();
|
|
return Value > 0 && Value < 4096;
|
|
}
|
|
bool isImm0_1() const {
|
|
if (!isImm()) return false;
|
|
const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
|
|
if (!CE) return false;
|
|
int64_t Value = CE->getValue();
|
|
return Value >= 0 && Value < 2;
|
|
}
|
|
bool isImm0_3() const {
|
|
if (!isImm()) return false;
|
|
const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
|
|
if (!CE) return false;
|
|
int64_t Value = CE->getValue();
|
|
return Value >= 0 && Value < 4;
|
|
}
|
|
bool isImm0_7() const {
|
|
if (!isImm()) return false;
|
|
const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
|
|
if (!CE) return false;
|
|
int64_t Value = CE->getValue();
|
|
return Value >= 0 && Value < 8;
|
|
}
|
|
bool isImm0_15() const {
|
|
if (!isImm()) return false;
|
|
const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
|
|
if (!CE) return false;
|
|
int64_t Value = CE->getValue();
|
|
return Value >= 0 && Value < 16;
|
|
}
|
|
bool isImm0_31() const {
|
|
if (!isImm()) return false;
|
|
const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
|
|
if (!CE) return false;
|
|
int64_t Value = CE->getValue();
|
|
return Value >= 0 && Value < 32;
|
|
}
|
|
bool isImm0_63() const {
|
|
if (!isImm()) return false;
|
|
const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
|
|
if (!CE) return false;
|
|
int64_t Value = CE->getValue();
|
|
return Value >= 0 && Value < 64;
|
|
}
|
|
bool isImm8() const {
|
|
if (!isImm()) return false;
|
|
const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
|
|
if (!CE) return false;
|
|
int64_t Value = CE->getValue();
|
|
return Value == 8;
|
|
}
|
|
bool isImm16() const {
|
|
if (!isImm()) return false;
|
|
const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
|
|
if (!CE) return false;
|
|
int64_t Value = CE->getValue();
|
|
return Value == 16;
|
|
}
|
|
bool isImm32() const {
|
|
if (!isImm()) return false;
|
|
const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
|
|
if (!CE) return false;
|
|
int64_t Value = CE->getValue();
|
|
return Value == 32;
|
|
}
|
|
bool isShrImm8() const {
|
|
if (!isImm()) return false;
|
|
const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
|
|
if (!CE) return false;
|
|
int64_t Value = CE->getValue();
|
|
return Value > 0 && Value <= 8;
|
|
}
|
|
bool isShrImm16() const {
|
|
if (!isImm()) return false;
|
|
const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
|
|
if (!CE) return false;
|
|
int64_t Value = CE->getValue();
|
|
return Value > 0 && Value <= 16;
|
|
}
|
|
bool isShrImm32() const {
|
|
if (!isImm()) return false;
|
|
const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
|
|
if (!CE) return false;
|
|
int64_t Value = CE->getValue();
|
|
return Value > 0 && Value <= 32;
|
|
}
|
|
bool isShrImm64() const {
|
|
if (!isImm()) return false;
|
|
const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
|
|
if (!CE) return false;
|
|
int64_t Value = CE->getValue();
|
|
return Value > 0 && Value <= 64;
|
|
}
|
|
bool isImm1_7() const {
|
|
if (!isImm()) return false;
|
|
const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
|
|
if (!CE) return false;
|
|
int64_t Value = CE->getValue();
|
|
return Value > 0 && Value < 8;
|
|
}
|
|
bool isImm1_15() const {
|
|
if (!isImm()) return false;
|
|
const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
|
|
if (!CE) return false;
|
|
int64_t Value = CE->getValue();
|
|
return Value > 0 && Value < 16;
|
|
}
|
|
bool isImm1_31() const {
|
|
if (!isImm()) return false;
|
|
const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
|
|
if (!CE) return false;
|
|
int64_t Value = CE->getValue();
|
|
return Value > 0 && Value < 32;
|
|
}
|
|
bool isImm1_16() const {
|
|
if (!isImm()) return false;
|
|
const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
|
|
if (!CE) return false;
|
|
int64_t Value = CE->getValue();
|
|
return Value > 0 && Value < 17;
|
|
}
|
|
bool isImm1_32() const {
|
|
if (!isImm()) return false;
|
|
const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
|
|
if (!CE) return false;
|
|
int64_t Value = CE->getValue();
|
|
return Value > 0 && Value < 33;
|
|
}
|
|
bool isImm0_32() const {
|
|
if (!isImm()) return false;
|
|
const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
|
|
if (!CE) return false;
|
|
int64_t Value = CE->getValue();
|
|
return Value >= 0 && Value < 33;
|
|
}
|
|
bool isImm0_65535() const {
|
|
if (!isImm()) return false;
|
|
const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
|
|
if (!CE) return false;
|
|
int64_t Value = CE->getValue();
|
|
return Value >= 0 && Value < 65536;
|
|
}
|
|
bool isImm0_65535Expr() const {
|
|
if (!isImm()) return false;
|
|
const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
|
|
// If it's not a constant expression, it'll generate a fixup and be
|
|
// handled later.
|
|
if (!CE) return true;
|
|
int64_t Value = CE->getValue();
|
|
return Value >= 0 && Value < 65536;
|
|
}
|
|
bool isImm24bit() const {
|
|
if (!isImm()) return false;
|
|
const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
|
|
if (!CE) return false;
|
|
int64_t Value = CE->getValue();
|
|
return Value >= 0 && Value <= 0xffffff;
|
|
}
|
|
bool isImmThumbSR() const {
|
|
if (!isImm()) return false;
|
|
const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
|
|
if (!CE) return false;
|
|
int64_t Value = CE->getValue();
|
|
return Value > 0 && Value < 33;
|
|
}
|
|
bool isPKHLSLImm() const {
|
|
if (!isImm()) return false;
|
|
const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
|
|
if (!CE) return false;
|
|
int64_t Value = CE->getValue();
|
|
return Value >= 0 && Value < 32;
|
|
}
|
|
bool isPKHASRImm() const {
|
|
if (!isImm()) return false;
|
|
const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
|
|
if (!CE) return false;
|
|
int64_t Value = CE->getValue();
|
|
return Value > 0 && Value <= 32;
|
|
}
|
|
bool isAdrLabel() const {
|
|
// If we have an immediate that's not a constant, treat it as a label
|
|
// reference needing a fixup. If it is a constant, but it can't fit
|
|
// into shift immediate encoding, we reject it.
|
|
if (isImm() && !isa<MCConstantExpr>(getImm())) return true;
|
|
else return (isARMSOImm() || isARMSOImmNeg());
|
|
}
|
|
bool isARMSOImm() const {
|
|
if (!isImm()) return false;
|
|
const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
|
|
if (!CE) return false;
|
|
int64_t Value = CE->getValue();
|
|
return ARM_AM::getSOImmVal(Value) != -1;
|
|
}
|
|
bool isARMSOImmNot() const {
|
|
if (!isImm()) return false;
|
|
const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
|
|
if (!CE) return false;
|
|
int64_t Value = CE->getValue();
|
|
return ARM_AM::getSOImmVal(~Value) != -1;
|
|
}
|
|
bool isARMSOImmNeg() const {
|
|
if (!isImm()) return false;
|
|
const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
|
|
if (!CE) return false;
|
|
int64_t Value = CE->getValue();
|
|
// Only use this when not representable as a plain so_imm.
|
|
return ARM_AM::getSOImmVal(Value) == -1 &&
|
|
ARM_AM::getSOImmVal(-Value) != -1;
|
|
}
|
|
bool isT2SOImm() const {
|
|
if (!isImm()) return false;
|
|
const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
|
|
if (!CE) return false;
|
|
int64_t Value = CE->getValue();
|
|
return ARM_AM::getT2SOImmVal(Value) != -1;
|
|
}
|
|
bool isT2SOImmNot() const {
|
|
if (!isImm()) return false;
|
|
const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
|
|
if (!CE) return false;
|
|
int64_t Value = CE->getValue();
|
|
return ARM_AM::getT2SOImmVal(~Value) != -1;
|
|
}
|
|
bool isT2SOImmNeg() const {
|
|
if (!isImm()) return false;
|
|
const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
|
|
if (!CE) return false;
|
|
int64_t Value = CE->getValue();
|
|
// Only use this when not representable as a plain so_imm.
|
|
return ARM_AM::getT2SOImmVal(Value) == -1 &&
|
|
ARM_AM::getT2SOImmVal(-Value) != -1;
|
|
}
|
|
bool isSetEndImm() const {
|
|
if (!isImm()) return false;
|
|
const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
|
|
if (!CE) return false;
|
|
int64_t Value = CE->getValue();
|
|
return Value == 1 || Value == 0;
|
|
}
|
|
bool isReg() const { return Kind == k_Register; }
|
|
bool isRegList() const { return Kind == k_RegisterList; }
|
|
bool isDPRRegList() const { return Kind == k_DPRRegisterList; }
|
|
bool isSPRRegList() const { return Kind == k_SPRRegisterList; }
|
|
bool isToken() const { return Kind == k_Token; }
|
|
bool isMemBarrierOpt() const { return Kind == k_MemBarrierOpt; }
|
|
bool isMem() const { return Kind == k_Memory; }
|
|
bool isShifterImm() const { return Kind == k_ShifterImmediate; }
|
|
bool isRegShiftedReg() const { return Kind == k_ShiftedRegister; }
|
|
bool isRegShiftedImm() const { return Kind == k_ShiftedImmediate; }
|
|
bool isRotImm() const { return Kind == k_RotateImmediate; }
|
|
bool isBitfield() const { return Kind == k_BitfieldDescriptor; }
|
|
bool isPostIdxRegShifted() const { return Kind == k_PostIndexRegister; }
|
|
bool isPostIdxReg() const {
|
|
return Kind == k_PostIndexRegister && PostIdxReg.ShiftTy ==ARM_AM::no_shift;
|
|
}
|
|
bool isMemNoOffset(bool alignOK = false) const {
|
|
if (!isMem())
|
|
return false;
|
|
// No offset of any kind.
|
|
return Memory.OffsetRegNum == 0 && Memory.OffsetImm == 0 &&
|
|
(alignOK || Memory.Alignment == 0);
|
|
}
|
|
bool isMemPCRelImm12() const {
|
|
if (!isMem() || Memory.OffsetRegNum != 0 || Memory.Alignment != 0)
|
|
return false;
|
|
// Base register must be PC.
|
|
if (Memory.BaseRegNum != ARM::PC)
|
|
return false;
|
|
// Immediate offset in range [-4095, 4095].
|
|
if (!Memory.OffsetImm) return true;
|
|
int64_t Val = Memory.OffsetImm->getValue();
|
|
return (Val > -4096 && Val < 4096) || (Val == INT32_MIN);
|
|
}
|
|
bool isAlignedMemory() const {
|
|
return isMemNoOffset(true);
|
|
}
|
|
bool isAddrMode2() const {
|
|
if (!isMem() || Memory.Alignment != 0) return false;
|
|
// Check for register offset.
|
|
if (Memory.OffsetRegNum) return true;
|
|
// Immediate offset in range [-4095, 4095].
|
|
if (!Memory.OffsetImm) return true;
|
|
int64_t Val = Memory.OffsetImm->getValue();
|
|
return Val > -4096 && Val < 4096;
|
|
}
|
|
bool isAM2OffsetImm() const {
|
|
if (!isImm()) return false;
|
|
// Immediate offset in range [-4095, 4095].
|
|
const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
|
|
if (!CE) return false;
|
|
int64_t Val = CE->getValue();
|
|
return Val > -4096 && Val < 4096;
|
|
}
|
|
bool isAddrMode3() const {
|
|
// If we have an immediate that's not a constant, treat it as a label
|
|
// reference needing a fixup. If it is a constant, it's something else
|
|
// and we reject it.
|
|
if (isImm() && !isa<MCConstantExpr>(getImm()))
|
|
return true;
|
|
if (!isMem() || Memory.Alignment != 0) return false;
|
|
// No shifts are legal for AM3.
|
|
if (Memory.ShiftType != ARM_AM::no_shift) return false;
|
|
// Check for register offset.
|
|
if (Memory.OffsetRegNum) return true;
|
|
// Immediate offset in range [-255, 255].
|
|
if (!Memory.OffsetImm) return true;
|
|
int64_t Val = Memory.OffsetImm->getValue();
|
|
// The #-0 offset is encoded as INT32_MIN, and we have to check
|
|
// for this too.
|
|
return (Val > -256 && Val < 256) || Val == INT32_MIN;
|
|
}
|
|
bool isAM3Offset() const {
|
|
if (Kind != k_Immediate && Kind != k_PostIndexRegister)
|
|
return false;
|
|
if (Kind == k_PostIndexRegister)
|
|
return PostIdxReg.ShiftTy == ARM_AM::no_shift;
|
|
// Immediate offset in range [-255, 255].
|
|
const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
|
|
if (!CE) return false;
|
|
int64_t Val = CE->getValue();
|
|
// Special case, #-0 is INT32_MIN.
|
|
return (Val > -256 && Val < 256) || Val == INT32_MIN;
|
|
}
|
|
bool isAddrMode5() const {
|
|
// If we have an immediate that's not a constant, treat it as a label
|
|
// reference needing a fixup. If it is a constant, it's something else
|
|
// and we reject it.
|
|
if (isImm() && !isa<MCConstantExpr>(getImm()))
|
|
return true;
|
|
if (!isMem() || Memory.Alignment != 0) return false;
|
|
// Check for register offset.
|
|
if (Memory.OffsetRegNum) return false;
|
|
// Immediate offset in range [-1020, 1020] and a multiple of 4.
|
|
if (!Memory.OffsetImm) return true;
|
|
int64_t Val = Memory.OffsetImm->getValue();
|
|
return (Val >= -1020 && Val <= 1020 && ((Val & 3) == 0)) ||
|
|
Val == INT32_MIN;
|
|
}
|
|
bool isMemTBB() const {
|
|
if (!isMem() || !Memory.OffsetRegNum || Memory.isNegative ||
|
|
Memory.ShiftType != ARM_AM::no_shift || Memory.Alignment != 0)
|
|
return false;
|
|
return true;
|
|
}
|
|
bool isMemTBH() const {
|
|
if (!isMem() || !Memory.OffsetRegNum || Memory.isNegative ||
|
|
Memory.ShiftType != ARM_AM::lsl || Memory.ShiftImm != 1 ||
|
|
Memory.Alignment != 0 )
|
|
return false;
|
|
return true;
|
|
}
|
|
bool isMemRegOffset() const {
|
|
if (!isMem() || !Memory.OffsetRegNum || Memory.Alignment != 0)
|
|
return false;
|
|
return true;
|
|
}
|
|
bool isT2MemRegOffset() const {
|
|
if (!isMem() || !Memory.OffsetRegNum || Memory.isNegative ||
|
|
Memory.Alignment != 0)
|
|
return false;
|
|
// Only lsl #{0, 1, 2, 3} allowed.
|
|
if (Memory.ShiftType == ARM_AM::no_shift)
|
|
return true;
|
|
if (Memory.ShiftType != ARM_AM::lsl || Memory.ShiftImm > 3)
|
|
return false;
|
|
return true;
|
|
}
|
|
bool isMemThumbRR() const {
|
|
// Thumb reg+reg addressing is simple. Just two registers, a base and
|
|
// an offset. No shifts, negations or any other complicating factors.
|
|
if (!isMem() || !Memory.OffsetRegNum || Memory.isNegative ||
|
|
Memory.ShiftType != ARM_AM::no_shift || Memory.Alignment != 0)
|
|
return false;
|
|
return isARMLowRegister(Memory.BaseRegNum) &&
|
|
(!Memory.OffsetRegNum || isARMLowRegister(Memory.OffsetRegNum));
|
|
}
|
|
bool isMemThumbRIs4() const {
|
|
if (!isMem() || Memory.OffsetRegNum != 0 ||
|
|
!isARMLowRegister(Memory.BaseRegNum) || Memory.Alignment != 0)
|
|
return false;
|
|
// Immediate offset, multiple of 4 in range [0, 124].
|
|
if (!Memory.OffsetImm) return true;
|
|
int64_t Val = Memory.OffsetImm->getValue();
|
|
return Val >= 0 && Val <= 124 && (Val % 4) == 0;
|
|
}
|
|
bool isMemThumbRIs2() const {
|
|
if (!isMem() || Memory.OffsetRegNum != 0 ||
|
|
!isARMLowRegister(Memory.BaseRegNum) || Memory.Alignment != 0)
|
|
return false;
|
|
// Immediate offset, multiple of 4 in range [0, 62].
|
|
if (!Memory.OffsetImm) return true;
|
|
int64_t Val = Memory.OffsetImm->getValue();
|
|
return Val >= 0 && Val <= 62 && (Val % 2) == 0;
|
|
}
|
|
bool isMemThumbRIs1() const {
|
|
if (!isMem() || Memory.OffsetRegNum != 0 ||
|
|
!isARMLowRegister(Memory.BaseRegNum) || Memory.Alignment != 0)
|
|
return false;
|
|
// Immediate offset in range [0, 31].
|
|
if (!Memory.OffsetImm) return true;
|
|
int64_t Val = Memory.OffsetImm->getValue();
|
|
return Val >= 0 && Val <= 31;
|
|
}
|
|
bool isMemThumbSPI() const {
|
|
if (!isMem() || Memory.OffsetRegNum != 0 ||
|
|
Memory.BaseRegNum != ARM::SP || Memory.Alignment != 0)
|
|
return false;
|
|
// Immediate offset, multiple of 4 in range [0, 1020].
|
|
if (!Memory.OffsetImm) return true;
|
|
int64_t Val = Memory.OffsetImm->getValue();
|
|
return Val >= 0 && Val <= 1020 && (Val % 4) == 0;
|
|
}
|
|
bool isMemImm8s4Offset() const {
|
|
// If we have an immediate that's not a constant, treat it as a label
|
|
// reference needing a fixup. If it is a constant, it's something else
|
|
// and we reject it.
|
|
if (isImm() && !isa<MCConstantExpr>(getImm()))
|
|
return true;
|
|
if (!isMem() || Memory.OffsetRegNum != 0 || Memory.Alignment != 0)
|
|
return false;
|
|
// Immediate offset a multiple of 4 in range [-1020, 1020].
|
|
if (!Memory.OffsetImm) return true;
|
|
int64_t Val = Memory.OffsetImm->getValue();
|
|
// Special case, #-0 is INT32_MIN.
|
|
return (Val >= -1020 && Val <= 1020 && (Val & 3) == 0) || Val == INT32_MIN;
|
|
}
|
|
bool isMemImm0_1020s4Offset() const {
|
|
if (!isMem() || Memory.OffsetRegNum != 0 || Memory.Alignment != 0)
|
|
return false;
|
|
// Immediate offset a multiple of 4 in range [0, 1020].
|
|
if (!Memory.OffsetImm) return true;
|
|
int64_t Val = Memory.OffsetImm->getValue();
|
|
return Val >= 0 && Val <= 1020 && (Val & 3) == 0;
|
|
}
|
|
bool isMemImm8Offset() const {
|
|
if (!isMem() || Memory.OffsetRegNum != 0 || Memory.Alignment != 0)
|
|
return false;
|
|
// Base reg of PC isn't allowed for these encodings.
|
|
if (Memory.BaseRegNum == ARM::PC) return false;
|
|
// Immediate offset in range [-255, 255].
|
|
if (!Memory.OffsetImm) return true;
|
|
int64_t Val = Memory.OffsetImm->getValue();
|
|
return (Val == INT32_MIN) || (Val > -256 && Val < 256);
|
|
}
|
|
bool isMemPosImm8Offset() const {
|
|
if (!isMem() || Memory.OffsetRegNum != 0 || Memory.Alignment != 0)
|
|
return false;
|
|
// Immediate offset in range [0, 255].
|
|
if (!Memory.OffsetImm) return true;
|
|
int64_t Val = Memory.OffsetImm->getValue();
|
|
return Val >= 0 && Val < 256;
|
|
}
|
|
bool isMemNegImm8Offset() const {
|
|
if (!isMem() || Memory.OffsetRegNum != 0 || Memory.Alignment != 0)
|
|
return false;
|
|
// Base reg of PC isn't allowed for these encodings.
|
|
if (Memory.BaseRegNum == ARM::PC) return false;
|
|
// Immediate offset in range [-255, -1].
|
|
if (!Memory.OffsetImm) return false;
|
|
int64_t Val = Memory.OffsetImm->getValue();
|
|
return (Val == INT32_MIN) || (Val > -256 && Val < 0);
|
|
}
|
|
bool isMemUImm12Offset() const {
|
|
if (!isMem() || Memory.OffsetRegNum != 0 || Memory.Alignment != 0)
|
|
return false;
|
|
// Immediate offset in range [0, 4095].
|
|
if (!Memory.OffsetImm) return true;
|
|
int64_t Val = Memory.OffsetImm->getValue();
|
|
return (Val >= 0 && Val < 4096);
|
|
}
|
|
bool isMemImm12Offset() const {
|
|
// If we have an immediate that's not a constant, treat it as a label
|
|
// reference needing a fixup. If it is a constant, it's something else
|
|
// and we reject it.
|
|
if (isImm() && !isa<MCConstantExpr>(getImm()))
|
|
return true;
|
|
|
|
if (!isMem() || Memory.OffsetRegNum != 0 || Memory.Alignment != 0)
|
|
return false;
|
|
// Immediate offset in range [-4095, 4095].
|
|
if (!Memory.OffsetImm) return true;
|
|
int64_t Val = Memory.OffsetImm->getValue();
|
|
return (Val > -4096 && Val < 4096) || (Val == INT32_MIN);
|
|
}
|
|
bool isPostIdxImm8() const {
|
|
if (!isImm()) return false;
|
|
const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
|
|
if (!CE) return false;
|
|
int64_t Val = CE->getValue();
|
|
return (Val > -256 && Val < 256) || (Val == INT32_MIN);
|
|
}
|
|
bool isPostIdxImm8s4() const {
|
|
if (!isImm()) return false;
|
|
const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
|
|
if (!CE) return false;
|
|
int64_t Val = CE->getValue();
|
|
return ((Val & 3) == 0 && Val >= -1020 && Val <= 1020) ||
|
|
(Val == INT32_MIN);
|
|
}
|
|
|
|
bool isMSRMask() const { return Kind == k_MSRMask; }
|
|
bool isProcIFlags() const { return Kind == k_ProcIFlags; }
|
|
|
|
// NEON operands.
|
|
bool isSingleSpacedVectorList() const {
|
|
return Kind == k_VectorList && !VectorList.isDoubleSpaced;
|
|
}
|
|
bool isDoubleSpacedVectorList() const {
|
|
return Kind == k_VectorList && VectorList.isDoubleSpaced;
|
|
}
|
|
bool isVecListOneD() const {
|
|
if (!isSingleSpacedVectorList()) return false;
|
|
return VectorList.Count == 1;
|
|
}
|
|
|
|
bool isVecListDPair() const {
|
|
if (!isSingleSpacedVectorList()) return false;
|
|
return (ARMMCRegisterClasses[ARM::DPairRegClassID]
|
|
.contains(VectorList.RegNum));
|
|
}
|
|
|
|
bool isVecListThreeD() const {
|
|
if (!isSingleSpacedVectorList()) return false;
|
|
return VectorList.Count == 3;
|
|
}
|
|
|
|
bool isVecListFourD() const {
|
|
if (!isSingleSpacedVectorList()) return false;
|
|
return VectorList.Count == 4;
|
|
}
|
|
|
|
bool isVecListDPairSpaced() const {
|
|
if (isSingleSpacedVectorList()) return false;
|
|
return (ARMMCRegisterClasses[ARM::DPairSpcRegClassID]
|
|
.contains(VectorList.RegNum));
|
|
}
|
|
|
|
bool isVecListThreeQ() const {
|
|
if (!isDoubleSpacedVectorList()) return false;
|
|
return VectorList.Count == 3;
|
|
}
|
|
|
|
bool isVecListFourQ() const {
|
|
if (!isDoubleSpacedVectorList()) return false;
|
|
return VectorList.Count == 4;
|
|
}
|
|
|
|
bool isSingleSpacedVectorAllLanes() const {
|
|
return Kind == k_VectorListAllLanes && !VectorList.isDoubleSpaced;
|
|
}
|
|
bool isDoubleSpacedVectorAllLanes() const {
|
|
return Kind == k_VectorListAllLanes && VectorList.isDoubleSpaced;
|
|
}
|
|
bool isVecListOneDAllLanes() const {
|
|
if (!isSingleSpacedVectorAllLanes()) return false;
|
|
return VectorList.Count == 1;
|
|
}
|
|
|
|
bool isVecListDPairAllLanes() const {
|
|
if (!isSingleSpacedVectorAllLanes()) return false;
|
|
return (ARMMCRegisterClasses[ARM::DPairRegClassID]
|
|
.contains(VectorList.RegNum));
|
|
}
|
|
|
|
bool isVecListDPairSpacedAllLanes() const {
|
|
if (!isDoubleSpacedVectorAllLanes()) return false;
|
|
return VectorList.Count == 2;
|
|
}
|
|
|
|
bool isVecListThreeDAllLanes() const {
|
|
if (!isSingleSpacedVectorAllLanes()) return false;
|
|
return VectorList.Count == 3;
|
|
}
|
|
|
|
bool isVecListThreeQAllLanes() const {
|
|
if (!isDoubleSpacedVectorAllLanes()) return false;
|
|
return VectorList.Count == 3;
|
|
}
|
|
|
|
bool isVecListFourDAllLanes() const {
|
|
if (!isSingleSpacedVectorAllLanes()) return false;
|
|
return VectorList.Count == 4;
|
|
}
|
|
|
|
bool isVecListFourQAllLanes() const {
|
|
if (!isDoubleSpacedVectorAllLanes()) return false;
|
|
return VectorList.Count == 4;
|
|
}
|
|
|
|
bool isSingleSpacedVectorIndexed() const {
|
|
return Kind == k_VectorListIndexed && !VectorList.isDoubleSpaced;
|
|
}
|
|
bool isDoubleSpacedVectorIndexed() const {
|
|
return Kind == k_VectorListIndexed && VectorList.isDoubleSpaced;
|
|
}
|
|
bool isVecListOneDByteIndexed() const {
|
|
if (!isSingleSpacedVectorIndexed()) return false;
|
|
return VectorList.Count == 1 && VectorList.LaneIndex <= 7;
|
|
}
|
|
|
|
bool isVecListOneDHWordIndexed() const {
|
|
if (!isSingleSpacedVectorIndexed()) return false;
|
|
return VectorList.Count == 1 && VectorList.LaneIndex <= 3;
|
|
}
|
|
|
|
bool isVecListOneDWordIndexed() const {
|
|
if (!isSingleSpacedVectorIndexed()) return false;
|
|
return VectorList.Count == 1 && VectorList.LaneIndex <= 1;
|
|
}
|
|
|
|
bool isVecListTwoDByteIndexed() const {
|
|
if (!isSingleSpacedVectorIndexed()) return false;
|
|
return VectorList.Count == 2 && VectorList.LaneIndex <= 7;
|
|
}
|
|
|
|
bool isVecListTwoDHWordIndexed() const {
|
|
if (!isSingleSpacedVectorIndexed()) return false;
|
|
return VectorList.Count == 2 && VectorList.LaneIndex <= 3;
|
|
}
|
|
|
|
bool isVecListTwoQWordIndexed() const {
|
|
if (!isDoubleSpacedVectorIndexed()) return false;
|
|
return VectorList.Count == 2 && VectorList.LaneIndex <= 1;
|
|
}
|
|
|
|
bool isVecListTwoQHWordIndexed() const {
|
|
if (!isDoubleSpacedVectorIndexed()) return false;
|
|
return VectorList.Count == 2 && VectorList.LaneIndex <= 3;
|
|
}
|
|
|
|
bool isVecListTwoDWordIndexed() const {
|
|
if (!isSingleSpacedVectorIndexed()) return false;
|
|
return VectorList.Count == 2 && VectorList.LaneIndex <= 1;
|
|
}
|
|
|
|
bool isVecListThreeDByteIndexed() const {
|
|
if (!isSingleSpacedVectorIndexed()) return false;
|
|
return VectorList.Count == 3 && VectorList.LaneIndex <= 7;
|
|
}
|
|
|
|
bool isVecListThreeDHWordIndexed() const {
|
|
if (!isSingleSpacedVectorIndexed()) return false;
|
|
return VectorList.Count == 3 && VectorList.LaneIndex <= 3;
|
|
}
|
|
|
|
bool isVecListThreeQWordIndexed() const {
|
|
if (!isDoubleSpacedVectorIndexed()) return false;
|
|
return VectorList.Count == 3 && VectorList.LaneIndex <= 1;
|
|
}
|
|
|
|
bool isVecListThreeQHWordIndexed() const {
|
|
if (!isDoubleSpacedVectorIndexed()) return false;
|
|
return VectorList.Count == 3 && VectorList.LaneIndex <= 3;
|
|
}
|
|
|
|
bool isVecListThreeDWordIndexed() const {
|
|
if (!isSingleSpacedVectorIndexed()) return false;
|
|
return VectorList.Count == 3 && VectorList.LaneIndex <= 1;
|
|
}
|
|
|
|
bool isVecListFourDByteIndexed() const {
|
|
if (!isSingleSpacedVectorIndexed()) return false;
|
|
return VectorList.Count == 4 && VectorList.LaneIndex <= 7;
|
|
}
|
|
|
|
bool isVecListFourDHWordIndexed() const {
|
|
if (!isSingleSpacedVectorIndexed()) return false;
|
|
return VectorList.Count == 4 && VectorList.LaneIndex <= 3;
|
|
}
|
|
|
|
bool isVecListFourQWordIndexed() const {
|
|
if (!isDoubleSpacedVectorIndexed()) return false;
|
|
return VectorList.Count == 4 && VectorList.LaneIndex <= 1;
|
|
}
|
|
|
|
bool isVecListFourQHWordIndexed() const {
|
|
if (!isDoubleSpacedVectorIndexed()) return false;
|
|
return VectorList.Count == 4 && VectorList.LaneIndex <= 3;
|
|
}
|
|
|
|
bool isVecListFourDWordIndexed() const {
|
|
if (!isSingleSpacedVectorIndexed()) return false;
|
|
return VectorList.Count == 4 && VectorList.LaneIndex <= 1;
|
|
}
|
|
|
|
bool isVectorIndex8() const {
|
|
if (Kind != k_VectorIndex) return false;
|
|
return VectorIndex.Val < 8;
|
|
}
|
|
bool isVectorIndex16() const {
|
|
if (Kind != k_VectorIndex) return false;
|
|
return VectorIndex.Val < 4;
|
|
}
|
|
bool isVectorIndex32() const {
|
|
if (Kind != k_VectorIndex) return false;
|
|
return VectorIndex.Val < 2;
|
|
}
|
|
|
|
bool isNEONi8splat() const {
|
|
if (!isImm()) return false;
|
|
const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
|
|
// Must be a constant.
|
|
if (!CE) return false;
|
|
int64_t Value = CE->getValue();
|
|
// i8 value splatted across 8 bytes. The immediate is just the 8 byte
|
|
// value.
|
|
return Value >= 0 && Value < 256;
|
|
}
|
|
|
|
bool isNEONi16splat() const {
|
|
if (!isImm()) return false;
|
|
const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
|
|
// Must be a constant.
|
|
if (!CE) return false;
|
|
int64_t Value = CE->getValue();
|
|
// i16 value in the range [0,255] or [0x0100, 0xff00]
|
|
return (Value >= 0 && Value < 256) || (Value >= 0x0100 && Value <= 0xff00);
|
|
}
|
|
|
|
bool isNEONi32splat() const {
|
|
if (!isImm()) return false;
|
|
const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
|
|
// Must be a constant.
|
|
if (!CE) return false;
|
|
int64_t Value = CE->getValue();
|
|
// i32 value with set bits only in one byte X000, 0X00, 00X0, or 000X.
|
|
return (Value >= 0 && Value < 256) ||
|
|
(Value >= 0x0100 && Value <= 0xff00) ||
|
|
(Value >= 0x010000 && Value <= 0xff0000) ||
|
|
(Value >= 0x01000000 && Value <= 0xff000000);
|
|
}
|
|
|
|
bool isNEONi32vmov() const {
|
|
if (!isImm()) return false;
|
|
const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
|
|
// Must be a constant.
|
|
if (!CE) return false;
|
|
int64_t Value = CE->getValue();
|
|
// i32 value with set bits only in one byte X000, 0X00, 00X0, or 000X,
|
|
// for VMOV/VMVN only, 00Xf or 0Xff are also accepted.
|
|
return (Value >= 0 && Value < 256) ||
|
|
(Value >= 0x0100 && Value <= 0xff00) ||
|
|
(Value >= 0x010000 && Value <= 0xff0000) ||
|
|
(Value >= 0x01000000 && Value <= 0xff000000) ||
|
|
(Value >= 0x01ff && Value <= 0xffff && (Value & 0xff) == 0xff) ||
|
|
(Value >= 0x01ffff && Value <= 0xffffff && (Value & 0xffff) == 0xffff);
|
|
}
|
|
bool isNEONi32vmovNeg() const {
|
|
if (!isImm()) return false;
|
|
const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
|
|
// Must be a constant.
|
|
if (!CE) return false;
|
|
int64_t Value = ~CE->getValue();
|
|
// i32 value with set bits only in one byte X000, 0X00, 00X0, or 000X,
|
|
// for VMOV/VMVN only, 00Xf or 0Xff are also accepted.
|
|
return (Value >= 0 && Value < 256) ||
|
|
(Value >= 0x0100 && Value <= 0xff00) ||
|
|
(Value >= 0x010000 && Value <= 0xff0000) ||
|
|
(Value >= 0x01000000 && Value <= 0xff000000) ||
|
|
(Value >= 0x01ff && Value <= 0xffff && (Value & 0xff) == 0xff) ||
|
|
(Value >= 0x01ffff && Value <= 0xffffff && (Value & 0xffff) == 0xffff);
|
|
}
|
|
|
|
bool isNEONi64splat() const {
|
|
if (!isImm()) return false;
|
|
const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
|
|
// Must be a constant.
|
|
if (!CE) return false;
|
|
uint64_t Value = CE->getValue();
|
|
// i64 value with each byte being either 0 or 0xff.
|
|
for (unsigned i = 0; i < 8; ++i)
|
|
if ((Value & 0xff) != 0 && (Value & 0xff) != 0xff) return false;
|
|
return true;
|
|
}
|
|
|
|
void addExpr(MCInst &Inst, const MCExpr *Expr) const {
|
|
// Add as immediates when possible. Null MCExpr = 0.
|
|
if (Expr == 0)
|
|
Inst.addOperand(MCOperand::CreateImm(0));
|
|
else if (const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(Expr))
|
|
Inst.addOperand(MCOperand::CreateImm(CE->getValue()));
|
|
else
|
|
Inst.addOperand(MCOperand::CreateExpr(Expr));
|
|
}
|
|
|
|
void addCondCodeOperands(MCInst &Inst, unsigned N) const {
|
|
assert(N == 2 && "Invalid number of operands!");
|
|
Inst.addOperand(MCOperand::CreateImm(unsigned(getCondCode())));
|
|
unsigned RegNum = getCondCode() == ARMCC::AL ? 0: ARM::CPSR;
|
|
Inst.addOperand(MCOperand::CreateReg(RegNum));
|
|
}
|
|
|
|
void addCoprocNumOperands(MCInst &Inst, unsigned N) const {
|
|
assert(N == 1 && "Invalid number of operands!");
|
|
Inst.addOperand(MCOperand::CreateImm(getCoproc()));
|
|
}
|
|
|
|
void addCoprocRegOperands(MCInst &Inst, unsigned N) const {
|
|
assert(N == 1 && "Invalid number of operands!");
|
|
Inst.addOperand(MCOperand::CreateImm(getCoproc()));
|
|
}
|
|
|
|
void addCoprocOptionOperands(MCInst &Inst, unsigned N) const {
|
|
assert(N == 1 && "Invalid number of operands!");
|
|
Inst.addOperand(MCOperand::CreateImm(CoprocOption.Val));
|
|
}
|
|
|
|
void addITMaskOperands(MCInst &Inst, unsigned N) const {
|
|
assert(N == 1 && "Invalid number of operands!");
|
|
Inst.addOperand(MCOperand::CreateImm(ITMask.Mask));
|
|
}
|
|
|
|
void addITCondCodeOperands(MCInst &Inst, unsigned N) const {
|
|
assert(N == 1 && "Invalid number of operands!");
|
|
Inst.addOperand(MCOperand::CreateImm(unsigned(getCondCode())));
|
|
}
|
|
|
|
void addCCOutOperands(MCInst &Inst, unsigned N) const {
|
|
assert(N == 1 && "Invalid number of operands!");
|
|
Inst.addOperand(MCOperand::CreateReg(getReg()));
|
|
}
|
|
|
|
void addRegOperands(MCInst &Inst, unsigned N) const {
|
|
assert(N == 1 && "Invalid number of operands!");
|
|
Inst.addOperand(MCOperand::CreateReg(getReg()));
|
|
}
|
|
|
|
void addRegShiftedRegOperands(MCInst &Inst, unsigned N) const {
|
|
assert(N == 3 && "Invalid number of operands!");
|
|
assert(isRegShiftedReg() &&
|
|
"addRegShiftedRegOperands() on non RegShiftedReg!");
|
|
Inst.addOperand(MCOperand::CreateReg(RegShiftedReg.SrcReg));
|
|
Inst.addOperand(MCOperand::CreateReg(RegShiftedReg.ShiftReg));
|
|
Inst.addOperand(MCOperand::CreateImm(
|
|
ARM_AM::getSORegOpc(RegShiftedReg.ShiftTy, RegShiftedReg.ShiftImm)));
|
|
}
|
|
|
|
void addRegShiftedImmOperands(MCInst &Inst, unsigned N) const {
|
|
assert(N == 2 && "Invalid number of operands!");
|
|
assert(isRegShiftedImm() &&
|
|
"addRegShiftedImmOperands() on non RegShiftedImm!");
|
|
Inst.addOperand(MCOperand::CreateReg(RegShiftedImm.SrcReg));
|
|
// Shift of #32 is encoded as 0 where permitted
|
|
unsigned Imm = (RegShiftedImm.ShiftImm == 32 ? 0 : RegShiftedImm.ShiftImm);
|
|
Inst.addOperand(MCOperand::CreateImm(
|
|
ARM_AM::getSORegOpc(RegShiftedImm.ShiftTy, Imm)));
|
|
}
|
|
|
|
void addShifterImmOperands(MCInst &Inst, unsigned N) const {
|
|
assert(N == 1 && "Invalid number of operands!");
|
|
Inst.addOperand(MCOperand::CreateImm((ShifterImm.isASR << 5) |
|
|
ShifterImm.Imm));
|
|
}
|
|
|
|
void addRegListOperands(MCInst &Inst, unsigned N) const {
|
|
assert(N == 1 && "Invalid number of operands!");
|
|
const SmallVectorImpl<unsigned> &RegList = getRegList();
|
|
for (SmallVectorImpl<unsigned>::const_iterator
|
|
I = RegList.begin(), E = RegList.end(); I != E; ++I)
|
|
Inst.addOperand(MCOperand::CreateReg(*I));
|
|
}
|
|
|
|
void addDPRRegListOperands(MCInst &Inst, unsigned N) const {
|
|
addRegListOperands(Inst, N);
|
|
}
|
|
|
|
void addSPRRegListOperands(MCInst &Inst, unsigned N) const {
|
|
addRegListOperands(Inst, N);
|
|
}
|
|
|
|
void addRotImmOperands(MCInst &Inst, unsigned N) const {
|
|
assert(N == 1 && "Invalid number of operands!");
|
|
// Encoded as val>>3. The printer handles display as 8, 16, 24.
|
|
Inst.addOperand(MCOperand::CreateImm(RotImm.Imm >> 3));
|
|
}
|
|
|
|
void addBitfieldOperands(MCInst &Inst, unsigned N) const {
|
|
assert(N == 1 && "Invalid number of operands!");
|
|
// Munge the lsb/width into a bitfield mask.
|
|
unsigned lsb = Bitfield.LSB;
|
|
unsigned width = Bitfield.Width;
|
|
// Make a 32-bit mask w/ the referenced bits clear and all other bits set.
|
|
uint32_t Mask = ~(((uint32_t)0xffffffff >> lsb) << (32 - width) >>
|
|
(32 - (lsb + width)));
|
|
Inst.addOperand(MCOperand::CreateImm(Mask));
|
|
}
|
|
|
|
void addImmOperands(MCInst &Inst, unsigned N) const {
|
|
assert(N == 1 && "Invalid number of operands!");
|
|
addExpr(Inst, getImm());
|
|
}
|
|
|
|
void addFBits16Operands(MCInst &Inst, unsigned N) const {
|
|
assert(N == 1 && "Invalid number of operands!");
|
|
const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
|
|
Inst.addOperand(MCOperand::CreateImm(16 - CE->getValue()));
|
|
}
|
|
|
|
void addFBits32Operands(MCInst &Inst, unsigned N) const {
|
|
assert(N == 1 && "Invalid number of operands!");
|
|
const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
|
|
Inst.addOperand(MCOperand::CreateImm(32 - CE->getValue()));
|
|
}
|
|
|
|
void addFPImmOperands(MCInst &Inst, unsigned N) const {
|
|
assert(N == 1 && "Invalid number of operands!");
|
|
const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
|
|
int Val = ARM_AM::getFP32Imm(APInt(32, CE->getValue()));
|
|
Inst.addOperand(MCOperand::CreateImm(Val));
|
|
}
|
|
|
|
void addImm8s4Operands(MCInst &Inst, unsigned N) const {
|
|
assert(N == 1 && "Invalid number of operands!");
|
|
// FIXME: We really want to scale the value here, but the LDRD/STRD
|
|
// instruction don't encode operands that way yet.
|
|
const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
|
|
Inst.addOperand(MCOperand::CreateImm(CE->getValue()));
|
|
}
|
|
|
|
void addImm0_1020s4Operands(MCInst &Inst, unsigned N) const {
|
|
assert(N == 1 && "Invalid number of operands!");
|
|
// The immediate is scaled by four in the encoding and is stored
|
|
// in the MCInst as such. Lop off the low two bits here.
|
|
const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
|
|
Inst.addOperand(MCOperand::CreateImm(CE->getValue() / 4));
|
|
}
|
|
|
|
void addImm0_508s4NegOperands(MCInst &Inst, unsigned N) const {
|
|
assert(N == 1 && "Invalid number of operands!");
|
|
// The immediate is scaled by four in the encoding and is stored
|
|
// in the MCInst as such. Lop off the low two bits here.
|
|
const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
|
|
Inst.addOperand(MCOperand::CreateImm(-(CE->getValue() / 4)));
|
|
}
|
|
|
|
void addImm0_508s4Operands(MCInst &Inst, unsigned N) const {
|
|
assert(N == 1 && "Invalid number of operands!");
|
|
// The immediate is scaled by four in the encoding and is stored
|
|
// in the MCInst as such. Lop off the low two bits here.
|
|
const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
|
|
Inst.addOperand(MCOperand::CreateImm(CE->getValue() / 4));
|
|
}
|
|
|
|
void addImm1_16Operands(MCInst &Inst, unsigned N) const {
|
|
assert(N == 1 && "Invalid number of operands!");
|
|
// The constant encodes as the immediate-1, and we store in the instruction
|
|
// the bits as encoded, so subtract off one here.
|
|
const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
|
|
Inst.addOperand(MCOperand::CreateImm(CE->getValue() - 1));
|
|
}
|
|
|
|
void addImm1_32Operands(MCInst &Inst, unsigned N) const {
|
|
assert(N == 1 && "Invalid number of operands!");
|
|
// The constant encodes as the immediate-1, and we store in the instruction
|
|
// the bits as encoded, so subtract off one here.
|
|
const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
|
|
Inst.addOperand(MCOperand::CreateImm(CE->getValue() - 1));
|
|
}
|
|
|
|
void addImmThumbSROperands(MCInst &Inst, unsigned N) const {
|
|
assert(N == 1 && "Invalid number of operands!");
|
|
// The constant encodes as the immediate, except for 32, which encodes as
|
|
// zero.
|
|
const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
|
|
unsigned Imm = CE->getValue();
|
|
Inst.addOperand(MCOperand::CreateImm((Imm == 32 ? 0 : Imm)));
|
|
}
|
|
|
|
void addPKHASRImmOperands(MCInst &Inst, unsigned N) const {
|
|
assert(N == 1 && "Invalid number of operands!");
|
|
// An ASR value of 32 encodes as 0, so that's how we want to add it to
|
|
// the instruction as well.
|
|
const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
|
|
int Val = CE->getValue();
|
|
Inst.addOperand(MCOperand::CreateImm(Val == 32 ? 0 : Val));
|
|
}
|
|
|
|
void addT2SOImmNotOperands(MCInst &Inst, unsigned N) const {
|
|
assert(N == 1 && "Invalid number of operands!");
|
|
// The operand is actually a t2_so_imm, but we have its bitwise
|
|
// negation in the assembly source, so twiddle it here.
|
|
const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
|
|
Inst.addOperand(MCOperand::CreateImm(~CE->getValue()));
|
|
}
|
|
|
|
void addT2SOImmNegOperands(MCInst &Inst, unsigned N) const {
|
|
assert(N == 1 && "Invalid number of operands!");
|
|
// The operand is actually a t2_so_imm, but we have its
|
|
// negation in the assembly source, so twiddle it here.
|
|
const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
|
|
Inst.addOperand(MCOperand::CreateImm(-CE->getValue()));
|
|
}
|
|
|
|
void addImm0_4095NegOperands(MCInst &Inst, unsigned N) const {
|
|
assert(N == 1 && "Invalid number of operands!");
|
|
// The operand is actually an imm0_4095, but we have its
|
|
// negation in the assembly source, so twiddle it here.
|
|
const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
|
|
Inst.addOperand(MCOperand::CreateImm(-CE->getValue()));
|
|
}
|
|
|
|
void addARMSOImmNotOperands(MCInst &Inst, unsigned N) const {
|
|
assert(N == 1 && "Invalid number of operands!");
|
|
// The operand is actually a so_imm, but we have its bitwise
|
|
// negation in the assembly source, so twiddle it here.
|
|
const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
|
|
Inst.addOperand(MCOperand::CreateImm(~CE->getValue()));
|
|
}
|
|
|
|
void addARMSOImmNegOperands(MCInst &Inst, unsigned N) const {
|
|
assert(N == 1 && "Invalid number of operands!");
|
|
// The operand is actually a so_imm, but we have its
|
|
// negation in the assembly source, so twiddle it here.
|
|
const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
|
|
Inst.addOperand(MCOperand::CreateImm(-CE->getValue()));
|
|
}
|
|
|
|
void addMemBarrierOptOperands(MCInst &Inst, unsigned N) const {
|
|
assert(N == 1 && "Invalid number of operands!");
|
|
Inst.addOperand(MCOperand::CreateImm(unsigned(getMemBarrierOpt())));
|
|
}
|
|
|
|
void addMemNoOffsetOperands(MCInst &Inst, unsigned N) const {
|
|
assert(N == 1 && "Invalid number of operands!");
|
|
Inst.addOperand(MCOperand::CreateReg(Memory.BaseRegNum));
|
|
}
|
|
|
|
void addMemPCRelImm12Operands(MCInst &Inst, unsigned N) const {
|
|
assert(N == 1 && "Invalid number of operands!");
|
|
int32_t Imm = Memory.OffsetImm->getValue();
|
|
// FIXME: Handle #-0
|
|
if (Imm == INT32_MIN) Imm = 0;
|
|
Inst.addOperand(MCOperand::CreateImm(Imm));
|
|
}
|
|
|
|
void addAdrLabelOperands(MCInst &Inst, unsigned N) const {
|
|
assert(N == 1 && "Invalid number of operands!");
|
|
assert(isImm() && "Not an immediate!");
|
|
|
|
// If we have an immediate that's not a constant, treat it as a label
|
|
// reference needing a fixup.
|
|
if (!isa<MCConstantExpr>(getImm())) {
|
|
Inst.addOperand(MCOperand::CreateExpr(getImm()));
|
|
return;
|
|
}
|
|
|
|
const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
|
|
int Val = CE->getValue();
|
|
Inst.addOperand(MCOperand::CreateImm(Val));
|
|
}
|
|
|
|
void addAlignedMemoryOperands(MCInst &Inst, unsigned N) const {
|
|
assert(N == 2 && "Invalid number of operands!");
|
|
Inst.addOperand(MCOperand::CreateReg(Memory.BaseRegNum));
|
|
Inst.addOperand(MCOperand::CreateImm(Memory.Alignment));
|
|
}
|
|
|
|
void addAddrMode2Operands(MCInst &Inst, unsigned N) const {
|
|
assert(N == 3 && "Invalid number of operands!");
|
|
int32_t Val = Memory.OffsetImm ? Memory.OffsetImm->getValue() : 0;
|
|
if (!Memory.OffsetRegNum) {
|
|
ARM_AM::AddrOpc AddSub = Val < 0 ? ARM_AM::sub : ARM_AM::add;
|
|
// Special case for #-0
|
|
if (Val == INT32_MIN) Val = 0;
|
|
if (Val < 0) Val = -Val;
|
|
Val = ARM_AM::getAM2Opc(AddSub, Val, ARM_AM::no_shift);
|
|
} else {
|
|
// For register offset, we encode the shift type and negation flag
|
|
// here.
|
|
Val = ARM_AM::getAM2Opc(Memory.isNegative ? ARM_AM::sub : ARM_AM::add,
|
|
Memory.ShiftImm, Memory.ShiftType);
|
|
}
|
|
Inst.addOperand(MCOperand::CreateReg(Memory.BaseRegNum));
|
|
Inst.addOperand(MCOperand::CreateReg(Memory.OffsetRegNum));
|
|
Inst.addOperand(MCOperand::CreateImm(Val));
|
|
}
|
|
|
|
void addAM2OffsetImmOperands(MCInst &Inst, unsigned N) const {
|
|
assert(N == 2 && "Invalid number of operands!");
|
|
const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
|
|
assert(CE && "non-constant AM2OffsetImm operand!");
|
|
int32_t Val = CE->getValue();
|
|
ARM_AM::AddrOpc AddSub = Val < 0 ? ARM_AM::sub : ARM_AM::add;
|
|
// Special case for #-0
|
|
if (Val == INT32_MIN) Val = 0;
|
|
if (Val < 0) Val = -Val;
|
|
Val = ARM_AM::getAM2Opc(AddSub, Val, ARM_AM::no_shift);
|
|
Inst.addOperand(MCOperand::CreateReg(0));
|
|
Inst.addOperand(MCOperand::CreateImm(Val));
|
|
}
|
|
|
|
void addAddrMode3Operands(MCInst &Inst, unsigned N) const {
|
|
assert(N == 3 && "Invalid number of operands!");
|
|
// If we have an immediate that's not a constant, treat it as a label
|
|
// reference needing a fixup. If it is a constant, it's something else
|
|
// and we reject it.
|
|
if (isImm()) {
|
|
Inst.addOperand(MCOperand::CreateExpr(getImm()));
|
|
Inst.addOperand(MCOperand::CreateReg(0));
|
|
Inst.addOperand(MCOperand::CreateImm(0));
|
|
return;
|
|
}
|
|
|
|
int32_t Val = Memory.OffsetImm ? Memory.OffsetImm->getValue() : 0;
|
|
if (!Memory.OffsetRegNum) {
|
|
ARM_AM::AddrOpc AddSub = Val < 0 ? ARM_AM::sub : ARM_AM::add;
|
|
// Special case for #-0
|
|
if (Val == INT32_MIN) Val = 0;
|
|
if (Val < 0) Val = -Val;
|
|
Val = ARM_AM::getAM3Opc(AddSub, Val);
|
|
} else {
|
|
// For register offset, we encode the shift type and negation flag
|
|
// here.
|
|
Val = ARM_AM::getAM3Opc(Memory.isNegative ? ARM_AM::sub : ARM_AM::add, 0);
|
|
}
|
|
Inst.addOperand(MCOperand::CreateReg(Memory.BaseRegNum));
|
|
Inst.addOperand(MCOperand::CreateReg(Memory.OffsetRegNum));
|
|
Inst.addOperand(MCOperand::CreateImm(Val));
|
|
}
|
|
|
|
void addAM3OffsetOperands(MCInst &Inst, unsigned N) const {
|
|
assert(N == 2 && "Invalid number of operands!");
|
|
if (Kind == k_PostIndexRegister) {
|
|
int32_t Val =
|
|
ARM_AM::getAM3Opc(PostIdxReg.isAdd ? ARM_AM::add : ARM_AM::sub, 0);
|
|
Inst.addOperand(MCOperand::CreateReg(PostIdxReg.RegNum));
|
|
Inst.addOperand(MCOperand::CreateImm(Val));
|
|
return;
|
|
}
|
|
|
|
// Constant offset.
|
|
const MCConstantExpr *CE = static_cast<const MCConstantExpr*>(getImm());
|
|
int32_t Val = CE->getValue();
|
|
ARM_AM::AddrOpc AddSub = Val < 0 ? ARM_AM::sub : ARM_AM::add;
|
|
// Special case for #-0
|
|
if (Val == INT32_MIN) Val = 0;
|
|
if (Val < 0) Val = -Val;
|
|
Val = ARM_AM::getAM3Opc(AddSub, Val);
|
|
Inst.addOperand(MCOperand::CreateReg(0));
|
|
Inst.addOperand(MCOperand::CreateImm(Val));
|
|
}
|
|
|
|
void addAddrMode5Operands(MCInst &Inst, unsigned N) const {
|
|
assert(N == 2 && "Invalid number of operands!");
|
|
// If we have an immediate that's not a constant, treat it as a label
|
|
// reference needing a fixup. If it is a constant, it's something else
|
|
// and we reject it.
|
|
if (isImm()) {
|
|
Inst.addOperand(MCOperand::CreateExpr(getImm()));
|
|
Inst.addOperand(MCOperand::CreateImm(0));
|
|
return;
|
|
}
|
|
|
|
// The lower two bits are always zero and as such are not encoded.
|
|
int32_t Val = Memory.OffsetImm ? Memory.OffsetImm->getValue() / 4 : 0;
|
|
ARM_AM::AddrOpc AddSub = Val < 0 ? ARM_AM::sub : ARM_AM::add;
|
|
// Special case for #-0
|
|
if (Val == INT32_MIN) Val = 0;
|
|
if (Val < 0) Val = -Val;
|
|
Val = ARM_AM::getAM5Opc(AddSub, Val);
|
|
Inst.addOperand(MCOperand::CreateReg(Memory.BaseRegNum));
|
|
Inst.addOperand(MCOperand::CreateImm(Val));
|
|
}
|
|
|
|
void addMemImm8s4OffsetOperands(MCInst &Inst, unsigned N) const {
|
|
assert(N == 2 && "Invalid number of operands!");
|
|
// If we have an immediate that's not a constant, treat it as a label
|
|
// reference needing a fixup. If it is a constant, it's something else
|
|
// and we reject it.
|
|
if (isImm()) {
|
|
Inst.addOperand(MCOperand::CreateExpr(getImm()));
|
|
Inst.addOperand(MCOperand::CreateImm(0));
|
|
return;
|
|
}
|
|
|
|
int64_t Val = Memory.OffsetImm ? Memory.OffsetImm->getValue() : 0;
|
|
Inst.addOperand(MCOperand::CreateReg(Memory.BaseRegNum));
|
|
Inst.addOperand(MCOperand::CreateImm(Val));
|
|
}
|
|
|
|
void addMemImm0_1020s4OffsetOperands(MCInst &Inst, unsigned N) const {
|
|
assert(N == 2 && "Invalid number of operands!");
|
|
// The lower two bits are always zero and as such are not encoded.
|
|
int32_t Val = Memory.OffsetImm ? Memory.OffsetImm->getValue() / 4 : 0;
|
|
Inst.addOperand(MCOperand::CreateReg(Memory.BaseRegNum));
|
|
Inst.addOperand(MCOperand::CreateImm(Val));
|
|
}
|
|
|
|
void addMemImm8OffsetOperands(MCInst &Inst, unsigned N) const {
|
|
assert(N == 2 && "Invalid number of operands!");
|
|
int64_t Val = Memory.OffsetImm ? Memory.OffsetImm->getValue() : 0;
|
|
Inst.addOperand(MCOperand::CreateReg(Memory.BaseRegNum));
|
|
Inst.addOperand(MCOperand::CreateImm(Val));
|
|
}
|
|
|
|
void addMemPosImm8OffsetOperands(MCInst &Inst, unsigned N) const {
|
|
addMemImm8OffsetOperands(Inst, N);
|
|
}
|
|
|
|
void addMemNegImm8OffsetOperands(MCInst &Inst, unsigned N) const {
|
|
addMemImm8OffsetOperands(Inst, N);
|
|
}
|
|
|
|
void addMemUImm12OffsetOperands(MCInst &Inst, unsigned N) const {
|
|
assert(N == 2 && "Invalid number of operands!");
|
|
// If this is an immediate, it's a label reference.
|
|
if (isImm()) {
|
|
addExpr(Inst, getImm());
|
|
Inst.addOperand(MCOperand::CreateImm(0));
|
|
return;
|
|
}
|
|
|
|
// Otherwise, it's a normal memory reg+offset.
|
|
int64_t Val = Memory.OffsetImm ? Memory.OffsetImm->getValue() : 0;
|
|
Inst.addOperand(MCOperand::CreateReg(Memory.BaseRegNum));
|
|
Inst.addOperand(MCOperand::CreateImm(Val));
|
|
}
|
|
|
|
void addMemImm12OffsetOperands(MCInst &Inst, unsigned N) const {
|
|
assert(N == 2 && "Invalid number of operands!");
|
|
// If this is an immediate, it's a label reference.
|
|
if (isImm()) {
|
|
addExpr(Inst, getImm());
|
|
Inst.addOperand(MCOperand::CreateImm(0));
|
|
return;
|
|
}
|
|
|
|
// Otherwise, it's a normal memory reg+offset.
|
|
int64_t Val = Memory.OffsetImm ? Memory.OffsetImm->getValue() : 0;
|
|
Inst.addOperand(MCOperand::CreateReg(Memory.BaseRegNum));
|
|
Inst.addOperand(MCOperand::CreateImm(Val));
|
|
}
|
|
|
|
void addMemTBBOperands(MCInst &Inst, unsigned N) const {
|
|
assert(N == 2 && "Invalid number of operands!");
|
|
Inst.addOperand(MCOperand::CreateReg(Memory.BaseRegNum));
|
|
Inst.addOperand(MCOperand::CreateReg(Memory.OffsetRegNum));
|
|
}
|
|
|
|
void addMemTBHOperands(MCInst &Inst, unsigned N) const {
|
|
assert(N == 2 && "Invalid number of operands!");
|
|
Inst.addOperand(MCOperand::CreateReg(Memory.BaseRegNum));
|
|
Inst.addOperand(MCOperand::CreateReg(Memory.OffsetRegNum));
|
|
}
|
|
|
|
void addMemRegOffsetOperands(MCInst &Inst, unsigned N) const {
|
|
assert(N == 3 && "Invalid number of operands!");
|
|
unsigned Val =
|
|
ARM_AM::getAM2Opc(Memory.isNegative ? ARM_AM::sub : ARM_AM::add,
|
|
Memory.ShiftImm, Memory.ShiftType);
|
|
Inst.addOperand(MCOperand::CreateReg(Memory.BaseRegNum));
|
|
Inst.addOperand(MCOperand::CreateReg(Memory.OffsetRegNum));
|
|
Inst.addOperand(MCOperand::CreateImm(Val));
|
|
}
|
|
|
|
void addT2MemRegOffsetOperands(MCInst &Inst, unsigned N) const {
|
|
assert(N == 3 && "Invalid number of operands!");
|
|
Inst.addOperand(MCOperand::CreateReg(Memory.BaseRegNum));
|
|
Inst.addOperand(MCOperand::CreateReg(Memory.OffsetRegNum));
|
|
Inst.addOperand(MCOperand::CreateImm(Memory.ShiftImm));
|
|
}
|
|
|
|
void addMemThumbRROperands(MCInst &Inst, unsigned N) const {
|
|
assert(N == 2 && "Invalid number of operands!");
|
|
Inst.addOperand(MCOperand::CreateReg(Memory.BaseRegNum));
|
|
Inst.addOperand(MCOperand::CreateReg(Memory.OffsetRegNum));
|
|
}
|
|
|
|
void addMemThumbRIs4Operands(MCInst &Inst, unsigned N) const {
|
|
assert(N == 2 && "Invalid number of operands!");
|
|
int64_t Val = Memory.OffsetImm ? (Memory.OffsetImm->getValue() / 4) : 0;
|
|
Inst.addOperand(MCOperand::CreateReg(Memory.BaseRegNum));
|
|
Inst.addOperand(MCOperand::CreateImm(Val));
|
|
}
|
|
|
|
void addMemThumbRIs2Operands(MCInst &Inst, unsigned N) const {
|
|
assert(N == 2 && "Invalid number of operands!");
|
|
int64_t Val = Memory.OffsetImm ? (Memory.OffsetImm->getValue() / 2) : 0;
|
|
Inst.addOperand(MCOperand::CreateReg(Memory.BaseRegNum));
|
|
Inst.addOperand(MCOperand::CreateImm(Val));
|
|
}
|
|
|
|
void addMemThumbRIs1Operands(MCInst &Inst, unsigned N) const {
|
|
assert(N == 2 && "Invalid number of operands!");
|
|
int64_t Val = Memory.OffsetImm ? (Memory.OffsetImm->getValue()) : 0;
|
|
Inst.addOperand(MCOperand::CreateReg(Memory.BaseRegNum));
|
|
Inst.addOperand(MCOperand::CreateImm(Val));
|
|
}
|
|
|
|
void addMemThumbSPIOperands(MCInst &Inst, unsigned N) const {
|
|
assert(N == 2 && "Invalid number of operands!");
|
|
int64_t Val = Memory.OffsetImm ? (Memory.OffsetImm->getValue() / 4) : 0;
|
|
Inst.addOperand(MCOperand::CreateReg(Memory.BaseRegNum));
|
|
Inst.addOperand(MCOperand::CreateImm(Val));
|
|
}
|
|
|
|
void addPostIdxImm8Operands(MCInst &Inst, unsigned N) const {
|
|
assert(N == 1 && "Invalid number of operands!");
|
|
const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
|
|
assert(CE && "non-constant post-idx-imm8 operand!");
|
|
int Imm = CE->getValue();
|
|
bool isAdd = Imm >= 0;
|
|
if (Imm == INT32_MIN) Imm = 0;
|
|
Imm = (Imm < 0 ? -Imm : Imm) | (int)isAdd << 8;
|
|
Inst.addOperand(MCOperand::CreateImm(Imm));
|
|
}
|
|
|
|
void addPostIdxImm8s4Operands(MCInst &Inst, unsigned N) const {
|
|
assert(N == 1 && "Invalid number of operands!");
|
|
const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
|
|
assert(CE && "non-constant post-idx-imm8s4 operand!");
|
|
int Imm = CE->getValue();
|
|
bool isAdd = Imm >= 0;
|
|
if (Imm == INT32_MIN) Imm = 0;
|
|
// Immediate is scaled by 4.
|
|
Imm = ((Imm < 0 ? -Imm : Imm) / 4) | (int)isAdd << 8;
|
|
Inst.addOperand(MCOperand::CreateImm(Imm));
|
|
}
|
|
|
|
void addPostIdxRegOperands(MCInst &Inst, unsigned N) const {
|
|
assert(N == 2 && "Invalid number of operands!");
|
|
Inst.addOperand(MCOperand::CreateReg(PostIdxReg.RegNum));
|
|
Inst.addOperand(MCOperand::CreateImm(PostIdxReg.isAdd));
|
|
}
|
|
|
|
void addPostIdxRegShiftedOperands(MCInst &Inst, unsigned N) const {
|
|
assert(N == 2 && "Invalid number of operands!");
|
|
Inst.addOperand(MCOperand::CreateReg(PostIdxReg.RegNum));
|
|
// The sign, shift type, and shift amount are encoded in a single operand
|
|
// using the AM2 encoding helpers.
|
|
ARM_AM::AddrOpc opc = PostIdxReg.isAdd ? ARM_AM::add : ARM_AM::sub;
|
|
unsigned Imm = ARM_AM::getAM2Opc(opc, PostIdxReg.ShiftImm,
|
|
PostIdxReg.ShiftTy);
|
|
Inst.addOperand(MCOperand::CreateImm(Imm));
|
|
}
|
|
|
|
void addMSRMaskOperands(MCInst &Inst, unsigned N) const {
|
|
assert(N == 1 && "Invalid number of operands!");
|
|
Inst.addOperand(MCOperand::CreateImm(unsigned(getMSRMask())));
|
|
}
|
|
|
|
void addProcIFlagsOperands(MCInst &Inst, unsigned N) const {
|
|
assert(N == 1 && "Invalid number of operands!");
|
|
Inst.addOperand(MCOperand::CreateImm(unsigned(getProcIFlags())));
|
|
}
|
|
|
|
void addVecListOperands(MCInst &Inst, unsigned N) const {
|
|
assert(N == 1 && "Invalid number of operands!");
|
|
Inst.addOperand(MCOperand::CreateReg(VectorList.RegNum));
|
|
}
|
|
|
|
void addVecListIndexedOperands(MCInst &Inst, unsigned N) const {
|
|
assert(N == 2 && "Invalid number of operands!");
|
|
Inst.addOperand(MCOperand::CreateReg(VectorList.RegNum));
|
|
Inst.addOperand(MCOperand::CreateImm(VectorList.LaneIndex));
|
|
}
|
|
|
|
void addVectorIndex8Operands(MCInst &Inst, unsigned N) const {
|
|
assert(N == 1 && "Invalid number of operands!");
|
|
Inst.addOperand(MCOperand::CreateImm(getVectorIndex()));
|
|
}
|
|
|
|
void addVectorIndex16Operands(MCInst &Inst, unsigned N) const {
|
|
assert(N == 1 && "Invalid number of operands!");
|
|
Inst.addOperand(MCOperand::CreateImm(getVectorIndex()));
|
|
}
|
|
|
|
void addVectorIndex32Operands(MCInst &Inst, unsigned N) const {
|
|
assert(N == 1 && "Invalid number of operands!");
|
|
Inst.addOperand(MCOperand::CreateImm(getVectorIndex()));
|
|
}
|
|
|
|
void addNEONi8splatOperands(MCInst &Inst, unsigned N) const {
|
|
assert(N == 1 && "Invalid number of operands!");
|
|
// The immediate encodes the type of constant as well as the value.
|
|
// Mask in that this is an i8 splat.
|
|
const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
|
|
Inst.addOperand(MCOperand::CreateImm(CE->getValue() | 0xe00));
|
|
}
|
|
|
|
void addNEONi16splatOperands(MCInst &Inst, unsigned N) const {
|
|
assert(N == 1 && "Invalid number of operands!");
|
|
// The immediate encodes the type of constant as well as the value.
|
|
const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
|
|
unsigned Value = CE->getValue();
|
|
if (Value >= 256)
|
|
Value = (Value >> 8) | 0xa00;
|
|
else
|
|
Value |= 0x800;
|
|
Inst.addOperand(MCOperand::CreateImm(Value));
|
|
}
|
|
|
|
void addNEONi32splatOperands(MCInst &Inst, unsigned N) const {
|
|
assert(N == 1 && "Invalid number of operands!");
|
|
// The immediate encodes the type of constant as well as the value.
|
|
const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
|
|
unsigned Value = CE->getValue();
|
|
if (Value >= 256 && Value <= 0xff00)
|
|
Value = (Value >> 8) | 0x200;
|
|
else if (Value > 0xffff && Value <= 0xff0000)
|
|
Value = (Value >> 16) | 0x400;
|
|
else if (Value > 0xffffff)
|
|
Value = (Value >> 24) | 0x600;
|
|
Inst.addOperand(MCOperand::CreateImm(Value));
|
|
}
|
|
|
|
void addNEONi32vmovOperands(MCInst &Inst, unsigned N) const {
|
|
assert(N == 1 && "Invalid number of operands!");
|
|
// The immediate encodes the type of constant as well as the value.
|
|
const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
|
|
unsigned Value = CE->getValue();
|
|
if (Value >= 256 && Value <= 0xffff)
|
|
Value = (Value >> 8) | ((Value & 0xff) ? 0xc00 : 0x200);
|
|
else if (Value > 0xffff && Value <= 0xffffff)
|
|
Value = (Value >> 16) | ((Value & 0xff) ? 0xd00 : 0x400);
|
|
else if (Value > 0xffffff)
|
|
Value = (Value >> 24) | 0x600;
|
|
Inst.addOperand(MCOperand::CreateImm(Value));
|
|
}
|
|
|
|
void addNEONi32vmovNegOperands(MCInst &Inst, unsigned N) const {
|
|
assert(N == 1 && "Invalid number of operands!");
|
|
// The immediate encodes the type of constant as well as the value.
|
|
const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
|
|
unsigned Value = ~CE->getValue();
|
|
if (Value >= 256 && Value <= 0xffff)
|
|
Value = (Value >> 8) | ((Value & 0xff) ? 0xc00 : 0x200);
|
|
else if (Value > 0xffff && Value <= 0xffffff)
|
|
Value = (Value >> 16) | ((Value & 0xff) ? 0xd00 : 0x400);
|
|
else if (Value > 0xffffff)
|
|
Value = (Value >> 24) | 0x600;
|
|
Inst.addOperand(MCOperand::CreateImm(Value));
|
|
}
|
|
|
|
void addNEONi64splatOperands(MCInst &Inst, unsigned N) const {
|
|
assert(N == 1 && "Invalid number of operands!");
|
|
// The immediate encodes the type of constant as well as the value.
|
|
const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
|
|
uint64_t Value = CE->getValue();
|
|
unsigned Imm = 0;
|
|
for (unsigned i = 0; i < 8; ++i, Value >>= 8) {
|
|
Imm |= (Value & 1) << i;
|
|
}
|
|
Inst.addOperand(MCOperand::CreateImm(Imm | 0x1e00));
|
|
}
|
|
|
|
virtual void print(raw_ostream &OS) const;
|
|
|
|
static ARMOperand *CreateITMask(unsigned Mask, SMLoc S) {
|
|
ARMOperand *Op = new ARMOperand(k_ITCondMask);
|
|
Op->ITMask.Mask = Mask;
|
|
Op->StartLoc = S;
|
|
Op->EndLoc = S;
|
|
return Op;
|
|
}
|
|
|
|
static ARMOperand *CreateCondCode(ARMCC::CondCodes CC, SMLoc S) {
|
|
ARMOperand *Op = new ARMOperand(k_CondCode);
|
|
Op->CC.Val = CC;
|
|
Op->StartLoc = S;
|
|
Op->EndLoc = S;
|
|
return Op;
|
|
}
|
|
|
|
static ARMOperand *CreateCoprocNum(unsigned CopVal, SMLoc S) {
|
|
ARMOperand *Op = new ARMOperand(k_CoprocNum);
|
|
Op->Cop.Val = CopVal;
|
|
Op->StartLoc = S;
|
|
Op->EndLoc = S;
|
|
return Op;
|
|
}
|
|
|
|
static ARMOperand *CreateCoprocReg(unsigned CopVal, SMLoc S) {
|
|
ARMOperand *Op = new ARMOperand(k_CoprocReg);
|
|
Op->Cop.Val = CopVal;
|
|
Op->StartLoc = S;
|
|
Op->EndLoc = S;
|
|
return Op;
|
|
}
|
|
|
|
static ARMOperand *CreateCoprocOption(unsigned Val, SMLoc S, SMLoc E) {
|
|
ARMOperand *Op = new ARMOperand(k_CoprocOption);
|
|
Op->Cop.Val = Val;
|
|
Op->StartLoc = S;
|
|
Op->EndLoc = E;
|
|
return Op;
|
|
}
|
|
|
|
static ARMOperand *CreateCCOut(unsigned RegNum, SMLoc S) {
|
|
ARMOperand *Op = new ARMOperand(k_CCOut);
|
|
Op->Reg.RegNum = RegNum;
|
|
Op->StartLoc = S;
|
|
Op->EndLoc = S;
|
|
return Op;
|
|
}
|
|
|
|
static ARMOperand *CreateToken(StringRef Str, SMLoc S) {
|
|
ARMOperand *Op = new ARMOperand(k_Token);
|
|
Op->Tok.Data = Str.data();
|
|
Op->Tok.Length = Str.size();
|
|
Op->StartLoc = S;
|
|
Op->EndLoc = S;
|
|
return Op;
|
|
}
|
|
|
|
static ARMOperand *CreateReg(unsigned RegNum, SMLoc S, SMLoc E) {
|
|
ARMOperand *Op = new ARMOperand(k_Register);
|
|
Op->Reg.RegNum = RegNum;
|
|
Op->StartLoc = S;
|
|
Op->EndLoc = E;
|
|
return Op;
|
|
}
|
|
|
|
static ARMOperand *CreateShiftedRegister(ARM_AM::ShiftOpc ShTy,
|
|
unsigned SrcReg,
|
|
unsigned ShiftReg,
|
|
unsigned ShiftImm,
|
|
SMLoc S, SMLoc E) {
|
|
ARMOperand *Op = new ARMOperand(k_ShiftedRegister);
|
|
Op->RegShiftedReg.ShiftTy = ShTy;
|
|
Op->RegShiftedReg.SrcReg = SrcReg;
|
|
Op->RegShiftedReg.ShiftReg = ShiftReg;
|
|
Op->RegShiftedReg.ShiftImm = ShiftImm;
|
|
Op->StartLoc = S;
|
|
Op->EndLoc = E;
|
|
return Op;
|
|
}
|
|
|
|
static ARMOperand *CreateShiftedImmediate(ARM_AM::ShiftOpc ShTy,
|
|
unsigned SrcReg,
|
|
unsigned ShiftImm,
|
|
SMLoc S, SMLoc E) {
|
|
ARMOperand *Op = new ARMOperand(k_ShiftedImmediate);
|
|
Op->RegShiftedImm.ShiftTy = ShTy;
|
|
Op->RegShiftedImm.SrcReg = SrcReg;
|
|
Op->RegShiftedImm.ShiftImm = ShiftImm;
|
|
Op->StartLoc = S;
|
|
Op->EndLoc = E;
|
|
return Op;
|
|
}
|
|
|
|
static ARMOperand *CreateShifterImm(bool isASR, unsigned Imm,
|
|
SMLoc S, SMLoc E) {
|
|
ARMOperand *Op = new ARMOperand(k_ShifterImmediate);
|
|
Op->ShifterImm.isASR = isASR;
|
|
Op->ShifterImm.Imm = Imm;
|
|
Op->StartLoc = S;
|
|
Op->EndLoc = E;
|
|
return Op;
|
|
}
|
|
|
|
static ARMOperand *CreateRotImm(unsigned Imm, SMLoc S, SMLoc E) {
|
|
ARMOperand *Op = new ARMOperand(k_RotateImmediate);
|
|
Op->RotImm.Imm = Imm;
|
|
Op->StartLoc = S;
|
|
Op->EndLoc = E;
|
|
return Op;
|
|
}
|
|
|
|
static ARMOperand *CreateBitfield(unsigned LSB, unsigned Width,
|
|
SMLoc S, SMLoc E) {
|
|
ARMOperand *Op = new ARMOperand(k_BitfieldDescriptor);
|
|
Op->Bitfield.LSB = LSB;
|
|
Op->Bitfield.Width = Width;
|
|
Op->StartLoc = S;
|
|
Op->EndLoc = E;
|
|
return Op;
|
|
}
|
|
|
|
static ARMOperand *
|
|
CreateRegList(const SmallVectorImpl<std::pair<unsigned, SMLoc> > &Regs,
|
|
SMLoc StartLoc, SMLoc EndLoc) {
|
|
KindTy Kind = k_RegisterList;
|
|
|
|
if (ARMMCRegisterClasses[ARM::DPRRegClassID].contains(Regs.front().first))
|
|
Kind = k_DPRRegisterList;
|
|
else if (ARMMCRegisterClasses[ARM::SPRRegClassID].
|
|
contains(Regs.front().first))
|
|
Kind = k_SPRRegisterList;
|
|
|
|
ARMOperand *Op = new ARMOperand(Kind);
|
|
for (SmallVectorImpl<std::pair<unsigned, SMLoc> >::const_iterator
|
|
I = Regs.begin(), E = Regs.end(); I != E; ++I)
|
|
Op->Registers.push_back(I->first);
|
|
array_pod_sort(Op->Registers.begin(), Op->Registers.end());
|
|
Op->StartLoc = StartLoc;
|
|
Op->EndLoc = EndLoc;
|
|
return Op;
|
|
}
|
|
|
|
static ARMOperand *CreateVectorList(unsigned RegNum, unsigned Count,
|
|
bool isDoubleSpaced, SMLoc S, SMLoc E) {
|
|
ARMOperand *Op = new ARMOperand(k_VectorList);
|
|
Op->VectorList.RegNum = RegNum;
|
|
Op->VectorList.Count = Count;
|
|
Op->VectorList.isDoubleSpaced = isDoubleSpaced;
|
|
Op->StartLoc = S;
|
|
Op->EndLoc = E;
|
|
return Op;
|
|
}
|
|
|
|
static ARMOperand *CreateVectorListAllLanes(unsigned RegNum, unsigned Count,
|
|
bool isDoubleSpaced,
|
|
SMLoc S, SMLoc E) {
|
|
ARMOperand *Op = new ARMOperand(k_VectorListAllLanes);
|
|
Op->VectorList.RegNum = RegNum;
|
|
Op->VectorList.Count = Count;
|
|
Op->VectorList.isDoubleSpaced = isDoubleSpaced;
|
|
Op->StartLoc = S;
|
|
Op->EndLoc = E;
|
|
return Op;
|
|
}
|
|
|
|
static ARMOperand *CreateVectorListIndexed(unsigned RegNum, unsigned Count,
|
|
unsigned Index,
|
|
bool isDoubleSpaced,
|
|
SMLoc S, SMLoc E) {
|
|
ARMOperand *Op = new ARMOperand(k_VectorListIndexed);
|
|
Op->VectorList.RegNum = RegNum;
|
|
Op->VectorList.Count = Count;
|
|
Op->VectorList.LaneIndex = Index;
|
|
Op->VectorList.isDoubleSpaced = isDoubleSpaced;
|
|
Op->StartLoc = S;
|
|
Op->EndLoc = E;
|
|
return Op;
|
|
}
|
|
|
|
static ARMOperand *CreateVectorIndex(unsigned Idx, SMLoc S, SMLoc E,
|
|
MCContext &Ctx) {
|
|
ARMOperand *Op = new ARMOperand(k_VectorIndex);
|
|
Op->VectorIndex.Val = Idx;
|
|
Op->StartLoc = S;
|
|
Op->EndLoc = E;
|
|
return Op;
|
|
}
|
|
|
|
static ARMOperand *CreateImm(const MCExpr *Val, SMLoc S, SMLoc E) {
|
|
ARMOperand *Op = new ARMOperand(k_Immediate);
|
|
Op->Imm.Val = Val;
|
|
Op->StartLoc = S;
|
|
Op->EndLoc = E;
|
|
return Op;
|
|
}
|
|
|
|
static ARMOperand *CreateMem(unsigned BaseRegNum,
|
|
const MCConstantExpr *OffsetImm,
|
|
unsigned OffsetRegNum,
|
|
ARM_AM::ShiftOpc ShiftType,
|
|
unsigned ShiftImm,
|
|
unsigned Alignment,
|
|
bool isNegative,
|
|
SMLoc S, SMLoc E) {
|
|
ARMOperand *Op = new ARMOperand(k_Memory);
|
|
Op->Memory.BaseRegNum = BaseRegNum;
|
|
Op->Memory.OffsetImm = OffsetImm;
|
|
Op->Memory.OffsetRegNum = OffsetRegNum;
|
|
Op->Memory.ShiftType = ShiftType;
|
|
Op->Memory.ShiftImm = ShiftImm;
|
|
Op->Memory.Alignment = Alignment;
|
|
Op->Memory.isNegative = isNegative;
|
|
Op->StartLoc = S;
|
|
Op->EndLoc = E;
|
|
return Op;
|
|
}
|
|
|
|
static ARMOperand *CreatePostIdxReg(unsigned RegNum, bool isAdd,
|
|
ARM_AM::ShiftOpc ShiftTy,
|
|
unsigned ShiftImm,
|
|
SMLoc S, SMLoc E) {
|
|
ARMOperand *Op = new ARMOperand(k_PostIndexRegister);
|
|
Op->PostIdxReg.RegNum = RegNum;
|
|
Op->PostIdxReg.isAdd = isAdd;
|
|
Op->PostIdxReg.ShiftTy = ShiftTy;
|
|
Op->PostIdxReg.ShiftImm = ShiftImm;
|
|
Op->StartLoc = S;
|
|
Op->EndLoc = E;
|
|
return Op;
|
|
}
|
|
|
|
static ARMOperand *CreateMemBarrierOpt(ARM_MB::MemBOpt Opt, SMLoc S) {
|
|
ARMOperand *Op = new ARMOperand(k_MemBarrierOpt);
|
|
Op->MBOpt.Val = Opt;
|
|
Op->StartLoc = S;
|
|
Op->EndLoc = S;
|
|
return Op;
|
|
}
|
|
|
|
static ARMOperand *CreateProcIFlags(ARM_PROC::IFlags IFlags, SMLoc S) {
|
|
ARMOperand *Op = new ARMOperand(k_ProcIFlags);
|
|
Op->IFlags.Val = IFlags;
|
|
Op->StartLoc = S;
|
|
Op->EndLoc = S;
|
|
return Op;
|
|
}
|
|
|
|
static ARMOperand *CreateMSRMask(unsigned MMask, SMLoc S) {
|
|
ARMOperand *Op = new ARMOperand(k_MSRMask);
|
|
Op->MMask.Val = MMask;
|
|
Op->StartLoc = S;
|
|
Op->EndLoc = S;
|
|
return Op;
|
|
}
|
|
};
|
|
|
|
} // end anonymous namespace.
|
|
|
|
void ARMOperand::print(raw_ostream &OS) const {
|
|
switch (Kind) {
|
|
case k_CondCode:
|
|
OS << "<ARMCC::" << ARMCondCodeToString(getCondCode()) << ">";
|
|
break;
|
|
case k_CCOut:
|
|
OS << "<ccout " << getReg() << ">";
|
|
break;
|
|
case k_ITCondMask: {
|
|
static const char *const MaskStr[] = {
|
|
"()", "(t)", "(e)", "(tt)", "(et)", "(te)", "(ee)", "(ttt)", "(ett)",
|
|
"(tet)", "(eet)", "(tte)", "(ete)", "(tee)", "(eee)"
|
|
};
|
|
assert((ITMask.Mask & 0xf) == ITMask.Mask);
|
|
OS << "<it-mask " << MaskStr[ITMask.Mask] << ">";
|
|
break;
|
|
}
|
|
case k_CoprocNum:
|
|
OS << "<coprocessor number: " << getCoproc() << ">";
|
|
break;
|
|
case k_CoprocReg:
|
|
OS << "<coprocessor register: " << getCoproc() << ">";
|
|
break;
|
|
case k_CoprocOption:
|
|
OS << "<coprocessor option: " << CoprocOption.Val << ">";
|
|
break;
|
|
case k_MSRMask:
|
|
OS << "<mask: " << getMSRMask() << ">";
|
|
break;
|
|
case k_Immediate:
|
|
getImm()->print(OS);
|
|
break;
|
|
case k_MemBarrierOpt:
|
|
OS << "<ARM_MB::" << MemBOptToString(getMemBarrierOpt()) << ">";
|
|
break;
|
|
case k_Memory:
|
|
OS << "<memory "
|
|
<< " base:" << Memory.BaseRegNum;
|
|
OS << ">";
|
|
break;
|
|
case k_PostIndexRegister:
|
|
OS << "post-idx register " << (PostIdxReg.isAdd ? "" : "-")
|
|
<< PostIdxReg.RegNum;
|
|
if (PostIdxReg.ShiftTy != ARM_AM::no_shift)
|
|
OS << ARM_AM::getShiftOpcStr(PostIdxReg.ShiftTy) << " "
|
|
<< PostIdxReg.ShiftImm;
|
|
OS << ">";
|
|
break;
|
|
case k_ProcIFlags: {
|
|
OS << "<ARM_PROC::";
|
|
unsigned IFlags = getProcIFlags();
|
|
for (int i=2; i >= 0; --i)
|
|
if (IFlags & (1 << i))
|
|
OS << ARM_PROC::IFlagsToString(1 << i);
|
|
OS << ">";
|
|
break;
|
|
}
|
|
case k_Register:
|
|
OS << "<register " << getReg() << ">";
|
|
break;
|
|
case k_ShifterImmediate:
|
|
OS << "<shift " << (ShifterImm.isASR ? "asr" : "lsl")
|
|
<< " #" << ShifterImm.Imm << ">";
|
|
break;
|
|
case k_ShiftedRegister:
|
|
OS << "<so_reg_reg "
|
|
<< RegShiftedReg.SrcReg << " "
|
|
<< ARM_AM::getShiftOpcStr(RegShiftedReg.ShiftTy)
|
|
<< " " << RegShiftedReg.ShiftReg << ">";
|
|
break;
|
|
case k_ShiftedImmediate:
|
|
OS << "<so_reg_imm "
|
|
<< RegShiftedImm.SrcReg << " "
|
|
<< ARM_AM::getShiftOpcStr(RegShiftedImm.ShiftTy)
|
|
<< " #" << RegShiftedImm.ShiftImm << ">";
|
|
break;
|
|
case k_RotateImmediate:
|
|
OS << "<ror " << " #" << (RotImm.Imm * 8) << ">";
|
|
break;
|
|
case k_BitfieldDescriptor:
|
|
OS << "<bitfield " << "lsb: " << Bitfield.LSB
|
|
<< ", width: " << Bitfield.Width << ">";
|
|
break;
|
|
case k_RegisterList:
|
|
case k_DPRRegisterList:
|
|
case k_SPRRegisterList: {
|
|
OS << "<register_list ";
|
|
|
|
const SmallVectorImpl<unsigned> &RegList = getRegList();
|
|
for (SmallVectorImpl<unsigned>::const_iterator
|
|
I = RegList.begin(), E = RegList.end(); I != E; ) {
|
|
OS << *I;
|
|
if (++I < E) OS << ", ";
|
|
}
|
|
|
|
OS << ">";
|
|
break;
|
|
}
|
|
case k_VectorList:
|
|
OS << "<vector_list " << VectorList.Count << " * "
|
|
<< VectorList.RegNum << ">";
|
|
break;
|
|
case k_VectorListAllLanes:
|
|
OS << "<vector_list(all lanes) " << VectorList.Count << " * "
|
|
<< VectorList.RegNum << ">";
|
|
break;
|
|
case k_VectorListIndexed:
|
|
OS << "<vector_list(lane " << VectorList.LaneIndex << ") "
|
|
<< VectorList.Count << " * " << VectorList.RegNum << ">";
|
|
break;
|
|
case k_Token:
|
|
OS << "'" << getToken() << "'";
|
|
break;
|
|
case k_VectorIndex:
|
|
OS << "<vectorindex " << getVectorIndex() << ">";
|
|
break;
|
|
}
|
|
}
|
|
|
|
/// @name Auto-generated Match Functions
|
|
/// {
|
|
|
|
static unsigned MatchRegisterName(StringRef Name);
|
|
|
|
/// }
|
|
|
|
bool ARMAsmParser::ParseRegister(unsigned &RegNo,
|
|
SMLoc &StartLoc, SMLoc &EndLoc) {
|
|
StartLoc = Parser.getTok().getLoc();
|
|
RegNo = tryParseRegister();
|
|
EndLoc = Parser.getTok().getLoc();
|
|
|
|
return (RegNo == (unsigned)-1);
|
|
}
|
|
|
|
/// Try to parse a register name. The token must be an Identifier when called,
|
|
/// and if it is a register name the token is eaten and the register number is
|
|
/// returned. Otherwise return -1.
|
|
///
|
|
int ARMAsmParser::tryParseRegister() {
|
|
const AsmToken &Tok = Parser.getTok();
|
|
if (Tok.isNot(AsmToken::Identifier)) return -1;
|
|
|
|
std::string lowerCase = Tok.getString().lower();
|
|
unsigned RegNum = MatchRegisterName(lowerCase);
|
|
if (!RegNum) {
|
|
RegNum = StringSwitch<unsigned>(lowerCase)
|
|
.Case("r13", ARM::SP)
|
|
.Case("r14", ARM::LR)
|
|
.Case("r15", ARM::PC)
|
|
.Case("ip", ARM::R12)
|
|
// Additional register name aliases for 'gas' compatibility.
|
|
.Case("a1", ARM::R0)
|
|
.Case("a2", ARM::R1)
|
|
.Case("a3", ARM::R2)
|
|
.Case("a4", ARM::R3)
|
|
.Case("v1", ARM::R4)
|
|
.Case("v2", ARM::R5)
|
|
.Case("v3", ARM::R6)
|
|
.Case("v4", ARM::R7)
|
|
.Case("v5", ARM::R8)
|
|
.Case("v6", ARM::R9)
|
|
.Case("v7", ARM::R10)
|
|
.Case("v8", ARM::R11)
|
|
.Case("sb", ARM::R9)
|
|
.Case("sl", ARM::R10)
|
|
.Case("fp", ARM::R11)
|
|
.Default(0);
|
|
}
|
|
if (!RegNum) {
|
|
// Check for aliases registered via .req. Canonicalize to lower case.
|
|
// That's more consistent since register names are case insensitive, and
|
|
// it's how the original entry was passed in from MC/MCParser/AsmParser.
|
|
StringMap<unsigned>::const_iterator Entry = RegisterReqs.find(lowerCase);
|
|
// If no match, return failure.
|
|
if (Entry == RegisterReqs.end())
|
|
return -1;
|
|
Parser.Lex(); // Eat identifier token.
|
|
return Entry->getValue();
|
|
}
|
|
|
|
Parser.Lex(); // Eat identifier token.
|
|
|
|
return RegNum;
|
|
}
|
|
|
|
// Try to parse a shifter (e.g., "lsl <amt>"). On success, return 0.
|
|
// If a recoverable error occurs, return 1. If an irrecoverable error
|
|
// occurs, return -1. An irrecoverable error is one where tokens have been
|
|
// consumed in the process of trying to parse the shifter (i.e., when it is
|
|
// indeed a shifter operand, but malformed).
|
|
int ARMAsmParser::tryParseShiftRegister(
|
|
SmallVectorImpl<MCParsedAsmOperand*> &Operands) {
|
|
SMLoc S = Parser.getTok().getLoc();
|
|
const AsmToken &Tok = Parser.getTok();
|
|
assert(Tok.is(AsmToken::Identifier) && "Token is not an Identifier");
|
|
|
|
std::string lowerCase = Tok.getString().lower();
|
|
ARM_AM::ShiftOpc ShiftTy = StringSwitch<ARM_AM::ShiftOpc>(lowerCase)
|
|
.Case("asl", ARM_AM::lsl)
|
|
.Case("lsl", ARM_AM::lsl)
|
|
.Case("lsr", ARM_AM::lsr)
|
|
.Case("asr", ARM_AM::asr)
|
|
.Case("ror", ARM_AM::ror)
|
|
.Case("rrx", ARM_AM::rrx)
|
|
.Default(ARM_AM::no_shift);
|
|
|
|
if (ShiftTy == ARM_AM::no_shift)
|
|
return 1;
|
|
|
|
Parser.Lex(); // Eat the operator.
|
|
|
|
// The source register for the shift has already been added to the
|
|
// operand list, so we need to pop it off and combine it into the shifted
|
|
// register operand instead.
|
|
OwningPtr<ARMOperand> PrevOp((ARMOperand*)Operands.pop_back_val());
|
|
if (!PrevOp->isReg())
|
|
return Error(PrevOp->getStartLoc(), "shift must be of a register");
|
|
int SrcReg = PrevOp->getReg();
|
|
int64_t Imm = 0;
|
|
int ShiftReg = 0;
|
|
if (ShiftTy == ARM_AM::rrx) {
|
|
// RRX Doesn't have an explicit shift amount. The encoder expects
|
|
// the shift register to be the same as the source register. Seems odd,
|
|
// but OK.
|
|
ShiftReg = SrcReg;
|
|
} else {
|
|
// Figure out if this is shifted by a constant or a register (for non-RRX).
|
|
if (Parser.getTok().is(AsmToken::Hash) ||
|
|
Parser.getTok().is(AsmToken::Dollar)) {
|
|
Parser.Lex(); // Eat hash.
|
|
SMLoc ImmLoc = Parser.getTok().getLoc();
|
|
const MCExpr *ShiftExpr = 0;
|
|
if (getParser().ParseExpression(ShiftExpr)) {
|
|
Error(ImmLoc, "invalid immediate shift value");
|
|
return -1;
|
|
}
|
|
// The expression must be evaluatable as an immediate.
|
|
const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(ShiftExpr);
|
|
if (!CE) {
|
|
Error(ImmLoc, "invalid immediate shift value");
|
|
return -1;
|
|
}
|
|
// Range check the immediate.
|
|
// lsl, ror: 0 <= imm <= 31
|
|
// lsr, asr: 0 <= imm <= 32
|
|
Imm = CE->getValue();
|
|
if (Imm < 0 ||
|
|
((ShiftTy == ARM_AM::lsl || ShiftTy == ARM_AM::ror) && Imm > 31) ||
|
|
((ShiftTy == ARM_AM::lsr || ShiftTy == ARM_AM::asr) && Imm > 32)) {
|
|
Error(ImmLoc, "immediate shift value out of range");
|
|
return -1;
|
|
}
|
|
// shift by zero is a nop. Always send it through as lsl.
|
|
// ('as' compatibility)
|
|
if (Imm == 0)
|
|
ShiftTy = ARM_AM::lsl;
|
|
} else if (Parser.getTok().is(AsmToken::Identifier)) {
|
|
ShiftReg = tryParseRegister();
|
|
SMLoc L = Parser.getTok().getLoc();
|
|
if (ShiftReg == -1) {
|
|
Error (L, "expected immediate or register in shift operand");
|
|
return -1;
|
|
}
|
|
} else {
|
|
Error (Parser.getTok().getLoc(),
|
|
"expected immediate or register in shift operand");
|
|
return -1;
|
|
}
|
|
}
|
|
|
|
if (ShiftReg && ShiftTy != ARM_AM::rrx)
|
|
Operands.push_back(ARMOperand::CreateShiftedRegister(ShiftTy, SrcReg,
|
|
ShiftReg, Imm,
|
|
S, Parser.getTok().getLoc()));
|
|
else
|
|
Operands.push_back(ARMOperand::CreateShiftedImmediate(ShiftTy, SrcReg, Imm,
|
|
S, Parser.getTok().getLoc()));
|
|
|
|
return 0;
|
|
}
|
|
|
|
|
|
/// Try to parse a register name. The token must be an Identifier when called.
|
|
/// If it's a register, an AsmOperand is created. Another AsmOperand is created
|
|
/// if there is a "writeback". 'true' if it's not a register.
|
|
///
|
|
/// TODO this is likely to change to allow different register types and or to
|
|
/// parse for a specific register type.
|
|
bool ARMAsmParser::
|
|
tryParseRegisterWithWriteBack(SmallVectorImpl<MCParsedAsmOperand*> &Operands) {
|
|
SMLoc S = Parser.getTok().getLoc();
|
|
int RegNo = tryParseRegister();
|
|
if (RegNo == -1)
|
|
return true;
|
|
|
|
Operands.push_back(ARMOperand::CreateReg(RegNo, S, Parser.getTok().getLoc()));
|
|
|
|
const AsmToken &ExclaimTok = Parser.getTok();
|
|
if (ExclaimTok.is(AsmToken::Exclaim)) {
|
|
Operands.push_back(ARMOperand::CreateToken(ExclaimTok.getString(),
|
|
ExclaimTok.getLoc()));
|
|
Parser.Lex(); // Eat exclaim token
|
|
return false;
|
|
}
|
|
|
|
// Also check for an index operand. This is only legal for vector registers,
|
|
// but that'll get caught OK in operand matching, so we don't need to
|
|
// explicitly filter everything else out here.
|
|
if (Parser.getTok().is(AsmToken::LBrac)) {
|
|
SMLoc SIdx = Parser.getTok().getLoc();
|
|
Parser.Lex(); // Eat left bracket token.
|
|
|
|
const MCExpr *ImmVal;
|
|
if (getParser().ParseExpression(ImmVal))
|
|
return true;
|
|
const MCConstantExpr *MCE = dyn_cast<MCConstantExpr>(ImmVal);
|
|
if (!MCE)
|
|
return TokError("immediate value expected for vector index");
|
|
|
|
SMLoc E = Parser.getTok().getLoc();
|
|
if (Parser.getTok().isNot(AsmToken::RBrac))
|
|
return Error(E, "']' expected");
|
|
|
|
Parser.Lex(); // Eat right bracket token.
|
|
|
|
Operands.push_back(ARMOperand::CreateVectorIndex(MCE->getValue(),
|
|
SIdx, E,
|
|
getContext()));
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
/// MatchCoprocessorOperandName - Try to parse an coprocessor related
|
|
/// instruction with a symbolic operand name. Example: "p1", "p7", "c3",
|
|
/// "c5", ...
|
|
static int MatchCoprocessorOperandName(StringRef Name, char CoprocOp) {
|
|
// Use the same layout as the tablegen'erated register name matcher. Ugly,
|
|
// but efficient.
|
|
switch (Name.size()) {
|
|
default: return -1;
|
|
case 2:
|
|
if (Name[0] != CoprocOp)
|
|
return -1;
|
|
switch (Name[1]) {
|
|
default: return -1;
|
|
case '0': return 0;
|
|
case '1': return 1;
|
|
case '2': return 2;
|
|
case '3': return 3;
|
|
case '4': return 4;
|
|
case '5': return 5;
|
|
case '6': return 6;
|
|
case '7': return 7;
|
|
case '8': return 8;
|
|
case '9': return 9;
|
|
}
|
|
case 3:
|
|
if (Name[0] != CoprocOp || Name[1] != '1')
|
|
return -1;
|
|
switch (Name[2]) {
|
|
default: return -1;
|
|
case '0': return 10;
|
|
case '1': return 11;
|
|
case '2': return 12;
|
|
case '3': return 13;
|
|
case '4': return 14;
|
|
case '5': return 15;
|
|
}
|
|
}
|
|
}
|
|
|
|
/// parseITCondCode - Try to parse a condition code for an IT instruction.
|
|
ARMAsmParser::OperandMatchResultTy ARMAsmParser::
|
|
parseITCondCode(SmallVectorImpl<MCParsedAsmOperand*> &Operands) {
|
|
SMLoc S = Parser.getTok().getLoc();
|
|
const AsmToken &Tok = Parser.getTok();
|
|
if (!Tok.is(AsmToken::Identifier))
|
|
return MatchOperand_NoMatch;
|
|
unsigned CC = StringSwitch<unsigned>(Tok.getString().lower())
|
|
.Case("eq", ARMCC::EQ)
|
|
.Case("ne", ARMCC::NE)
|
|
.Case("hs", ARMCC::HS)
|
|
.Case("cs", ARMCC::HS)
|
|
.Case("lo", ARMCC::LO)
|
|
.Case("cc", ARMCC::LO)
|
|
.Case("mi", ARMCC::MI)
|
|
.Case("pl", ARMCC::PL)
|
|
.Case("vs", ARMCC::VS)
|
|
.Case("vc", ARMCC::VC)
|
|
.Case("hi", ARMCC::HI)
|
|
.Case("ls", ARMCC::LS)
|
|
.Case("ge", ARMCC::GE)
|
|
.Case("lt", ARMCC::LT)
|
|
.Case("gt", ARMCC::GT)
|
|
.Case("le", ARMCC::LE)
|
|
.Case("al", ARMCC::AL)
|
|
.Default(~0U);
|
|
if (CC == ~0U)
|
|
return MatchOperand_NoMatch;
|
|
Parser.Lex(); // Eat the token.
|
|
|
|
Operands.push_back(ARMOperand::CreateCondCode(ARMCC::CondCodes(CC), S));
|
|
|
|
return MatchOperand_Success;
|
|
}
|
|
|
|
/// parseCoprocNumOperand - Try to parse an coprocessor number operand. The
|
|
/// token must be an Identifier when called, and if it is a coprocessor
|
|
/// number, the token is eaten and the operand is added to the operand list.
|
|
ARMAsmParser::OperandMatchResultTy ARMAsmParser::
|
|
parseCoprocNumOperand(SmallVectorImpl<MCParsedAsmOperand*> &Operands) {
|
|
SMLoc S = Parser.getTok().getLoc();
|
|
const AsmToken &Tok = Parser.getTok();
|
|
if (Tok.isNot(AsmToken::Identifier))
|
|
return MatchOperand_NoMatch;
|
|
|
|
int Num = MatchCoprocessorOperandName(Tok.getString(), 'p');
|
|
if (Num == -1)
|
|
return MatchOperand_NoMatch;
|
|
|
|
Parser.Lex(); // Eat identifier token.
|
|
Operands.push_back(ARMOperand::CreateCoprocNum(Num, S));
|
|
return MatchOperand_Success;
|
|
}
|
|
|
|
/// parseCoprocRegOperand - Try to parse an coprocessor register operand. The
|
|
/// token must be an Identifier when called, and if it is a coprocessor
|
|
/// number, the token is eaten and the operand is added to the operand list.
|
|
ARMAsmParser::OperandMatchResultTy ARMAsmParser::
|
|
parseCoprocRegOperand(SmallVectorImpl<MCParsedAsmOperand*> &Operands) {
|
|
SMLoc S = Parser.getTok().getLoc();
|
|
const AsmToken &Tok = Parser.getTok();
|
|
if (Tok.isNot(AsmToken::Identifier))
|
|
return MatchOperand_NoMatch;
|
|
|
|
int Reg = MatchCoprocessorOperandName(Tok.getString(), 'c');
|
|
if (Reg == -1)
|
|
return MatchOperand_NoMatch;
|
|
|
|
Parser.Lex(); // Eat identifier token.
|
|
Operands.push_back(ARMOperand::CreateCoprocReg(Reg, S));
|
|
return MatchOperand_Success;
|
|
}
|
|
|
|
/// parseCoprocOptionOperand - Try to parse an coprocessor option operand.
|
|
/// coproc_option : '{' imm0_255 '}'
|
|
ARMAsmParser::OperandMatchResultTy ARMAsmParser::
|
|
parseCoprocOptionOperand(SmallVectorImpl<MCParsedAsmOperand*> &Operands) {
|
|
SMLoc S = Parser.getTok().getLoc();
|
|
|
|
// If this isn't a '{', this isn't a coprocessor immediate operand.
|
|
if (Parser.getTok().isNot(AsmToken::LCurly))
|
|
return MatchOperand_NoMatch;
|
|
Parser.Lex(); // Eat the '{'
|
|
|
|
const MCExpr *Expr;
|
|
SMLoc Loc = Parser.getTok().getLoc();
|
|
if (getParser().ParseExpression(Expr)) {
|
|
Error(Loc, "illegal expression");
|
|
return MatchOperand_ParseFail;
|
|
}
|
|
const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(Expr);
|
|
if (!CE || CE->getValue() < 0 || CE->getValue() > 255) {
|
|
Error(Loc, "coprocessor option must be an immediate in range [0, 255]");
|
|
return MatchOperand_ParseFail;
|
|
}
|
|
int Val = CE->getValue();
|
|
|
|
// Check for and consume the closing '}'
|
|
if (Parser.getTok().isNot(AsmToken::RCurly))
|
|
return MatchOperand_ParseFail;
|
|
SMLoc E = Parser.getTok().getLoc();
|
|
Parser.Lex(); // Eat the '}'
|
|
|
|
Operands.push_back(ARMOperand::CreateCoprocOption(Val, S, E));
|
|
return MatchOperand_Success;
|
|
}
|
|
|
|
// For register list parsing, we need to map from raw GPR register numbering
|
|
// to the enumeration values. The enumeration values aren't sorted by
|
|
// register number due to our using "sp", "lr" and "pc" as canonical names.
|
|
static unsigned getNextRegister(unsigned Reg) {
|
|
// If this is a GPR, we need to do it manually, otherwise we can rely
|
|
// on the sort ordering of the enumeration since the other reg-classes
|
|
// are sane.
|
|
if (!ARMMCRegisterClasses[ARM::GPRRegClassID].contains(Reg))
|
|
return Reg + 1;
|
|
switch(Reg) {
|
|
default: llvm_unreachable("Invalid GPR number!");
|
|
case ARM::R0: return ARM::R1; case ARM::R1: return ARM::R2;
|
|
case ARM::R2: return ARM::R3; case ARM::R3: return ARM::R4;
|
|
case ARM::R4: return ARM::R5; case ARM::R5: return ARM::R6;
|
|
case ARM::R6: return ARM::R7; case ARM::R7: return ARM::R8;
|
|
case ARM::R8: return ARM::R9; case ARM::R9: return ARM::R10;
|
|
case ARM::R10: return ARM::R11; case ARM::R11: return ARM::R12;
|
|
case ARM::R12: return ARM::SP; case ARM::SP: return ARM::LR;
|
|
case ARM::LR: return ARM::PC; case ARM::PC: return ARM::R0;
|
|
}
|
|
}
|
|
|
|
// Return the low-subreg of a given Q register.
|
|
static unsigned getDRegFromQReg(unsigned QReg) {
|
|
switch (QReg) {
|
|
default: llvm_unreachable("expected a Q register!");
|
|
case ARM::Q0: return ARM::D0;
|
|
case ARM::Q1: return ARM::D2;
|
|
case ARM::Q2: return ARM::D4;
|
|
case ARM::Q3: return ARM::D6;
|
|
case ARM::Q4: return ARM::D8;
|
|
case ARM::Q5: return ARM::D10;
|
|
case ARM::Q6: return ARM::D12;
|
|
case ARM::Q7: return ARM::D14;
|
|
case ARM::Q8: return ARM::D16;
|
|
case ARM::Q9: return ARM::D18;
|
|
case ARM::Q10: return ARM::D20;
|
|
case ARM::Q11: return ARM::D22;
|
|
case ARM::Q12: return ARM::D24;
|
|
case ARM::Q13: return ARM::D26;
|
|
case ARM::Q14: return ARM::D28;
|
|
case ARM::Q15: return ARM::D30;
|
|
}
|
|
}
|
|
|
|
/// Parse a register list.
|
|
bool ARMAsmParser::
|
|
parseRegisterList(SmallVectorImpl<MCParsedAsmOperand*> &Operands) {
|
|
assert(Parser.getTok().is(AsmToken::LCurly) &&
|
|
"Token is not a Left Curly Brace");
|
|
SMLoc S = Parser.getTok().getLoc();
|
|
Parser.Lex(); // Eat '{' token.
|
|
SMLoc RegLoc = Parser.getTok().getLoc();
|
|
|
|
// Check the first register in the list to see what register class
|
|
// this is a list of.
|
|
int Reg = tryParseRegister();
|
|
if (Reg == -1)
|
|
return Error(RegLoc, "register expected");
|
|
|
|
// The reglist instructions have at most 16 registers, so reserve
|
|
// space for that many.
|
|
SmallVector<std::pair<unsigned, SMLoc>, 16> Registers;
|
|
|
|
// Allow Q regs and just interpret them as the two D sub-registers.
|
|
if (ARMMCRegisterClasses[ARM::QPRRegClassID].contains(Reg)) {
|
|
Reg = getDRegFromQReg(Reg);
|
|
Registers.push_back(std::pair<unsigned, SMLoc>(Reg, RegLoc));
|
|
++Reg;
|
|
}
|
|
const MCRegisterClass *RC;
|
|
if (ARMMCRegisterClasses[ARM::GPRRegClassID].contains(Reg))
|
|
RC = &ARMMCRegisterClasses[ARM::GPRRegClassID];
|
|
else if (ARMMCRegisterClasses[ARM::DPRRegClassID].contains(Reg))
|
|
RC = &ARMMCRegisterClasses[ARM::DPRRegClassID];
|
|
else if (ARMMCRegisterClasses[ARM::SPRRegClassID].contains(Reg))
|
|
RC = &ARMMCRegisterClasses[ARM::SPRRegClassID];
|
|
else
|
|
return Error(RegLoc, "invalid register in register list");
|
|
|
|
// Store the register.
|
|
Registers.push_back(std::pair<unsigned, SMLoc>(Reg, RegLoc));
|
|
|
|
// This starts immediately after the first register token in the list,
|
|
// so we can see either a comma or a minus (range separator) as a legal
|
|
// next token.
|
|
while (Parser.getTok().is(AsmToken::Comma) ||
|
|
Parser.getTok().is(AsmToken::Minus)) {
|
|
if (Parser.getTok().is(AsmToken::Minus)) {
|
|
Parser.Lex(); // Eat the minus.
|
|
SMLoc EndLoc = Parser.getTok().getLoc();
|
|
int EndReg = tryParseRegister();
|
|
if (EndReg == -1)
|
|
return Error(EndLoc, "register expected");
|
|
// Allow Q regs and just interpret them as the two D sub-registers.
|
|
if (ARMMCRegisterClasses[ARM::QPRRegClassID].contains(EndReg))
|
|
EndReg = getDRegFromQReg(EndReg) + 1;
|
|
// If the register is the same as the start reg, there's nothing
|
|
// more to do.
|
|
if (Reg == EndReg)
|
|
continue;
|
|
// The register must be in the same register class as the first.
|
|
if (!RC->contains(EndReg))
|
|
return Error(EndLoc, "invalid register in register list");
|
|
// Ranges must go from low to high.
|
|
if (MRI->getEncodingValue(Reg) > MRI->getEncodingValue(EndReg))
|
|
return Error(EndLoc, "bad range in register list");
|
|
|
|
// Add all the registers in the range to the register list.
|
|
while (Reg != EndReg) {
|
|
Reg = getNextRegister(Reg);
|
|
Registers.push_back(std::pair<unsigned, SMLoc>(Reg, RegLoc));
|
|
}
|
|
continue;
|
|
}
|
|
Parser.Lex(); // Eat the comma.
|
|
RegLoc = Parser.getTok().getLoc();
|
|
int OldReg = Reg;
|
|
const AsmToken RegTok = Parser.getTok();
|
|
Reg = tryParseRegister();
|
|
if (Reg == -1)
|
|
return Error(RegLoc, "register expected");
|
|
// Allow Q regs and just interpret them as the two D sub-registers.
|
|
bool isQReg = false;
|
|
if (ARMMCRegisterClasses[ARM::QPRRegClassID].contains(Reg)) {
|
|
Reg = getDRegFromQReg(Reg);
|
|
isQReg = true;
|
|
}
|
|
// The register must be in the same register class as the first.
|
|
if (!RC->contains(Reg))
|
|
return Error(RegLoc, "invalid register in register list");
|
|
// List must be monotonically increasing.
|
|
if (MRI->getEncodingValue(Reg) < MRI->getEncodingValue(OldReg)) {
|
|
if (ARMMCRegisterClasses[ARM::GPRRegClassID].contains(Reg))
|
|
Warning(RegLoc, "register list not in ascending order");
|
|
else
|
|
return Error(RegLoc, "register list not in ascending order");
|
|
}
|
|
if (MRI->getEncodingValue(Reg) == MRI->getEncodingValue(OldReg)) {
|
|
Warning(RegLoc, "duplicated register (" + RegTok.getString() +
|
|
") in register list");
|
|
continue;
|
|
}
|
|
// VFP register lists must also be contiguous.
|
|
// It's OK to use the enumeration values directly here rather, as the
|
|
// VFP register classes have the enum sorted properly.
|
|
if (RC != &ARMMCRegisterClasses[ARM::GPRRegClassID] &&
|
|
Reg != OldReg + 1)
|
|
return Error(RegLoc, "non-contiguous register range");
|
|
Registers.push_back(std::pair<unsigned, SMLoc>(Reg, RegLoc));
|
|
if (isQReg)
|
|
Registers.push_back(std::pair<unsigned, SMLoc>(++Reg, RegLoc));
|
|
}
|
|
|
|
SMLoc E = Parser.getTok().getLoc();
|
|
if (Parser.getTok().isNot(AsmToken::RCurly))
|
|
return Error(E, "'}' expected");
|
|
Parser.Lex(); // Eat '}' token.
|
|
|
|
// Push the register list operand.
|
|
Operands.push_back(ARMOperand::CreateRegList(Registers, S, E));
|
|
|
|
// The ARM system instruction variants for LDM/STM have a '^' token here.
|
|
if (Parser.getTok().is(AsmToken::Caret)) {
|
|
Operands.push_back(ARMOperand::CreateToken("^",Parser.getTok().getLoc()));
|
|
Parser.Lex(); // Eat '^' token.
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
// Helper function to parse the lane index for vector lists.
|
|
ARMAsmParser::OperandMatchResultTy ARMAsmParser::
|
|
parseVectorLane(VectorLaneTy &LaneKind, unsigned &Index) {
|
|
Index = 0; // Always return a defined index value.
|
|
if (Parser.getTok().is(AsmToken::LBrac)) {
|
|
Parser.Lex(); // Eat the '['.
|
|
if (Parser.getTok().is(AsmToken::RBrac)) {
|
|
// "Dn[]" is the 'all lanes' syntax.
|
|
LaneKind = AllLanes;
|
|
Parser.Lex(); // Eat the ']'.
|
|
return MatchOperand_Success;
|
|
}
|
|
|
|
// There's an optional '#' token here. Normally there wouldn't be, but
|
|
// inline assemble puts one in, and it's friendly to accept that.
|
|
if (Parser.getTok().is(AsmToken::Hash))
|
|
Parser.Lex(); // Eat the '#'
|
|
|
|
const MCExpr *LaneIndex;
|
|
SMLoc Loc = Parser.getTok().getLoc();
|
|
if (getParser().ParseExpression(LaneIndex)) {
|
|
Error(Loc, "illegal expression");
|
|
return MatchOperand_ParseFail;
|
|
}
|
|
const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(LaneIndex);
|
|
if (!CE) {
|
|
Error(Loc, "lane index must be empty or an integer");
|
|
return MatchOperand_ParseFail;
|
|
}
|
|
if (Parser.getTok().isNot(AsmToken::RBrac)) {
|
|
Error(Parser.getTok().getLoc(), "']' expected");
|
|
return MatchOperand_ParseFail;
|
|
}
|
|
Parser.Lex(); // Eat the ']'.
|
|
int64_t Val = CE->getValue();
|
|
|
|
// FIXME: Make this range check context sensitive for .8, .16, .32.
|
|
if (Val < 0 || Val > 7) {
|
|
Error(Parser.getTok().getLoc(), "lane index out of range");
|
|
return MatchOperand_ParseFail;
|
|
}
|
|
Index = Val;
|
|
LaneKind = IndexedLane;
|
|
return MatchOperand_Success;
|
|
}
|
|
LaneKind = NoLanes;
|
|
return MatchOperand_Success;
|
|
}
|
|
|
|
// parse a vector register list
|
|
ARMAsmParser::OperandMatchResultTy ARMAsmParser::
|
|
parseVectorList(SmallVectorImpl<MCParsedAsmOperand*> &Operands) {
|
|
VectorLaneTy LaneKind;
|
|
unsigned LaneIndex;
|
|
SMLoc S = Parser.getTok().getLoc();
|
|
// As an extension (to match gas), support a plain D register or Q register
|
|
// (without encosing curly braces) as a single or double entry list,
|
|
// respectively.
|
|
if (Parser.getTok().is(AsmToken::Identifier)) {
|
|
int Reg = tryParseRegister();
|
|
if (Reg == -1)
|
|
return MatchOperand_NoMatch;
|
|
SMLoc E = Parser.getTok().getLoc();
|
|
if (ARMMCRegisterClasses[ARM::DPRRegClassID].contains(Reg)) {
|
|
OperandMatchResultTy Res = parseVectorLane(LaneKind, LaneIndex);
|
|
if (Res != MatchOperand_Success)
|
|
return Res;
|
|
switch (LaneKind) {
|
|
case NoLanes:
|
|
E = Parser.getTok().getLoc();
|
|
Operands.push_back(ARMOperand::CreateVectorList(Reg, 1, false, S, E));
|
|
break;
|
|
case AllLanes:
|
|
E = Parser.getTok().getLoc();
|
|
Operands.push_back(ARMOperand::CreateVectorListAllLanes(Reg, 1, false,
|
|
S, E));
|
|
break;
|
|
case IndexedLane:
|
|
Operands.push_back(ARMOperand::CreateVectorListIndexed(Reg, 1,
|
|
LaneIndex,
|
|
false, S, E));
|
|
break;
|
|
}
|
|
return MatchOperand_Success;
|
|
}
|
|
if (ARMMCRegisterClasses[ARM::QPRRegClassID].contains(Reg)) {
|
|
Reg = getDRegFromQReg(Reg);
|
|
OperandMatchResultTy Res = parseVectorLane(LaneKind, LaneIndex);
|
|
if (Res != MatchOperand_Success)
|
|
return Res;
|
|
switch (LaneKind) {
|
|
case NoLanes:
|
|
E = Parser.getTok().getLoc();
|
|
Reg = MRI->getMatchingSuperReg(Reg, ARM::dsub_0,
|
|
&ARMMCRegisterClasses[ARM::DPairRegClassID]);
|
|
Operands.push_back(ARMOperand::CreateVectorList(Reg, 2, false, S, E));
|
|
break;
|
|
case AllLanes:
|
|
E = Parser.getTok().getLoc();
|
|
Reg = MRI->getMatchingSuperReg(Reg, ARM::dsub_0,
|
|
&ARMMCRegisterClasses[ARM::DPairRegClassID]);
|
|
Operands.push_back(ARMOperand::CreateVectorListAllLanes(Reg, 2, false,
|
|
S, E));
|
|
break;
|
|
case IndexedLane:
|
|
Operands.push_back(ARMOperand::CreateVectorListIndexed(Reg, 2,
|
|
LaneIndex,
|
|
false, S, E));
|
|
break;
|
|
}
|
|
return MatchOperand_Success;
|
|
}
|
|
Error(S, "vector register expected");
|
|
return MatchOperand_ParseFail;
|
|
}
|
|
|
|
if (Parser.getTok().isNot(AsmToken::LCurly))
|
|
return MatchOperand_NoMatch;
|
|
|
|
Parser.Lex(); // Eat '{' token.
|
|
SMLoc RegLoc = Parser.getTok().getLoc();
|
|
|
|
int Reg = tryParseRegister();
|
|
if (Reg == -1) {
|
|
Error(RegLoc, "register expected");
|
|
return MatchOperand_ParseFail;
|
|
}
|
|
unsigned Count = 1;
|
|
int Spacing = 0;
|
|
unsigned FirstReg = Reg;
|
|
// The list is of D registers, but we also allow Q regs and just interpret
|
|
// them as the two D sub-registers.
|
|
if (ARMMCRegisterClasses[ARM::QPRRegClassID].contains(Reg)) {
|
|
FirstReg = Reg = getDRegFromQReg(Reg);
|
|
Spacing = 1; // double-spacing requires explicit D registers, otherwise
|
|
// it's ambiguous with four-register single spaced.
|
|
++Reg;
|
|
++Count;
|
|
}
|
|
if (parseVectorLane(LaneKind, LaneIndex) != MatchOperand_Success)
|
|
return MatchOperand_ParseFail;
|
|
|
|
while (Parser.getTok().is(AsmToken::Comma) ||
|
|
Parser.getTok().is(AsmToken::Minus)) {
|
|
if (Parser.getTok().is(AsmToken::Minus)) {
|
|
if (!Spacing)
|
|
Spacing = 1; // Register range implies a single spaced list.
|
|
else if (Spacing == 2) {
|
|
Error(Parser.getTok().getLoc(),
|
|
"sequential registers in double spaced list");
|
|
return MatchOperand_ParseFail;
|
|
}
|
|
Parser.Lex(); // Eat the minus.
|
|
SMLoc EndLoc = Parser.getTok().getLoc();
|
|
int EndReg = tryParseRegister();
|
|
if (EndReg == -1) {
|
|
Error(EndLoc, "register expected");
|
|
return MatchOperand_ParseFail;
|
|
}
|
|
// Allow Q regs and just interpret them as the two D sub-registers.
|
|
if (ARMMCRegisterClasses[ARM::QPRRegClassID].contains(EndReg))
|
|
EndReg = getDRegFromQReg(EndReg) + 1;
|
|
// If the register is the same as the start reg, there's nothing
|
|
// more to do.
|
|
if (Reg == EndReg)
|
|
continue;
|
|
// The register must be in the same register class as the first.
|
|
if (!ARMMCRegisterClasses[ARM::DPRRegClassID].contains(EndReg)) {
|
|
Error(EndLoc, "invalid register in register list");
|
|
return MatchOperand_ParseFail;
|
|
}
|
|
// Ranges must go from low to high.
|
|
if (Reg > EndReg) {
|
|
Error(EndLoc, "bad range in register list");
|
|
return MatchOperand_ParseFail;
|
|
}
|
|
// Parse the lane specifier if present.
|
|
VectorLaneTy NextLaneKind;
|
|
unsigned NextLaneIndex;
|
|
if (parseVectorLane(NextLaneKind, NextLaneIndex) != MatchOperand_Success)
|
|
return MatchOperand_ParseFail;
|
|
if (NextLaneKind != LaneKind || LaneIndex != NextLaneIndex) {
|
|
Error(EndLoc, "mismatched lane index in register list");
|
|
return MatchOperand_ParseFail;
|
|
}
|
|
EndLoc = Parser.getTok().getLoc();
|
|
|
|
// Add all the registers in the range to the register list.
|
|
Count += EndReg - Reg;
|
|
Reg = EndReg;
|
|
continue;
|
|
}
|
|
Parser.Lex(); // Eat the comma.
|
|
RegLoc = Parser.getTok().getLoc();
|
|
int OldReg = Reg;
|
|
Reg = tryParseRegister();
|
|
if (Reg == -1) {
|
|
Error(RegLoc, "register expected");
|
|
return MatchOperand_ParseFail;
|
|
}
|
|
// vector register lists must be contiguous.
|
|
// It's OK to use the enumeration values directly here rather, as the
|
|
// VFP register classes have the enum sorted properly.
|
|
//
|
|
// The list is of D registers, but we also allow Q regs and just interpret
|
|
// them as the two D sub-registers.
|
|
if (ARMMCRegisterClasses[ARM::QPRRegClassID].contains(Reg)) {
|
|
if (!Spacing)
|
|
Spacing = 1; // Register range implies a single spaced list.
|
|
else if (Spacing == 2) {
|
|
Error(RegLoc,
|
|
"invalid register in double-spaced list (must be 'D' register')");
|
|
return MatchOperand_ParseFail;
|
|
}
|
|
Reg = getDRegFromQReg(Reg);
|
|
if (Reg != OldReg + 1) {
|
|
Error(RegLoc, "non-contiguous register range");
|
|
return MatchOperand_ParseFail;
|
|
}
|
|
++Reg;
|
|
Count += 2;
|
|
// Parse the lane specifier if present.
|
|
VectorLaneTy NextLaneKind;
|
|
unsigned NextLaneIndex;
|
|
SMLoc EndLoc = Parser.getTok().getLoc();
|
|
if (parseVectorLane(NextLaneKind, NextLaneIndex) != MatchOperand_Success)
|
|
return MatchOperand_ParseFail;
|
|
if (NextLaneKind != LaneKind || LaneIndex != NextLaneIndex) {
|
|
Error(EndLoc, "mismatched lane index in register list");
|
|
return MatchOperand_ParseFail;
|
|
}
|
|
continue;
|
|
}
|
|
// Normal D register.
|
|
// Figure out the register spacing (single or double) of the list if
|
|
// we don't know it already.
|
|
if (!Spacing)
|
|
Spacing = 1 + (Reg == OldReg + 2);
|
|
|
|
// Just check that it's contiguous and keep going.
|
|
if (Reg != OldReg + Spacing) {
|
|
Error(RegLoc, "non-contiguous register range");
|
|
return MatchOperand_ParseFail;
|
|
}
|
|
++Count;
|
|
// Parse the lane specifier if present.
|
|
VectorLaneTy NextLaneKind;
|
|
unsigned NextLaneIndex;
|
|
SMLoc EndLoc = Parser.getTok().getLoc();
|
|
if (parseVectorLane(NextLaneKind, NextLaneIndex) != MatchOperand_Success)
|
|
return MatchOperand_ParseFail;
|
|
if (NextLaneKind != LaneKind || LaneIndex != NextLaneIndex) {
|
|
Error(EndLoc, "mismatched lane index in register list");
|
|
return MatchOperand_ParseFail;
|
|
}
|
|
}
|
|
|
|
SMLoc E = Parser.getTok().getLoc();
|
|
if (Parser.getTok().isNot(AsmToken::RCurly)) {
|
|
Error(E, "'}' expected");
|
|
return MatchOperand_ParseFail;
|
|
}
|
|
Parser.Lex(); // Eat '}' token.
|
|
|
|
switch (LaneKind) {
|
|
case NoLanes:
|
|
// Two-register operands have been converted to the
|
|
// composite register classes.
|
|
if (Count == 2) {
|
|
const MCRegisterClass *RC = (Spacing == 1) ?
|
|
&ARMMCRegisterClasses[ARM::DPairRegClassID] :
|
|
&ARMMCRegisterClasses[ARM::DPairSpcRegClassID];
|
|
FirstReg = MRI->getMatchingSuperReg(FirstReg, ARM::dsub_0, RC);
|
|
}
|
|
|
|
Operands.push_back(ARMOperand::CreateVectorList(FirstReg, Count,
|
|
(Spacing == 2), S, E));
|
|
break;
|
|
case AllLanes:
|
|
// Two-register operands have been converted to the
|
|
// composite register classes.
|
|
if (Count == 2) {
|
|
const MCRegisterClass *RC = (Spacing == 1) ?
|
|
&ARMMCRegisterClasses[ARM::DPairRegClassID] :
|
|
&ARMMCRegisterClasses[ARM::DPairSpcRegClassID];
|
|
FirstReg = MRI->getMatchingSuperReg(FirstReg, ARM::dsub_0, RC);
|
|
}
|
|
Operands.push_back(ARMOperand::CreateVectorListAllLanes(FirstReg, Count,
|
|
(Spacing == 2),
|
|
S, E));
|
|
break;
|
|
case IndexedLane:
|
|
Operands.push_back(ARMOperand::CreateVectorListIndexed(FirstReg, Count,
|
|
LaneIndex,
|
|
(Spacing == 2),
|
|
S, E));
|
|
break;
|
|
}
|
|
return MatchOperand_Success;
|
|
}
|
|
|
|
/// parseMemBarrierOptOperand - Try to parse DSB/DMB data barrier options.
|
|
ARMAsmParser::OperandMatchResultTy ARMAsmParser::
|
|
parseMemBarrierOptOperand(SmallVectorImpl<MCParsedAsmOperand*> &Operands) {
|
|
SMLoc S = Parser.getTok().getLoc();
|
|
const AsmToken &Tok = Parser.getTok();
|
|
unsigned Opt;
|
|
|
|
if (Tok.is(AsmToken::Identifier)) {
|
|
StringRef OptStr = Tok.getString();
|
|
|
|
Opt = StringSwitch<unsigned>(OptStr.slice(0, OptStr.size()).lower())
|
|
.Case("sy", ARM_MB::SY)
|
|
.Case("st", ARM_MB::ST)
|
|
.Case("sh", ARM_MB::ISH)
|
|
.Case("ish", ARM_MB::ISH)
|
|
.Case("shst", ARM_MB::ISHST)
|
|
.Case("ishst", ARM_MB::ISHST)
|
|
.Case("nsh", ARM_MB::NSH)
|
|
.Case("un", ARM_MB::NSH)
|
|
.Case("nshst", ARM_MB::NSHST)
|
|
.Case("unst", ARM_MB::NSHST)
|
|
.Case("osh", ARM_MB::OSH)
|
|
.Case("oshst", ARM_MB::OSHST)
|
|
.Default(~0U);
|
|
|
|
if (Opt == ~0U)
|
|
return MatchOperand_NoMatch;
|
|
|
|
Parser.Lex(); // Eat identifier token.
|
|
} else if (Tok.is(AsmToken::Hash) ||
|
|
Tok.is(AsmToken::Dollar) ||
|
|
Tok.is(AsmToken::Integer)) {
|
|
if (Parser.getTok().isNot(AsmToken::Integer))
|
|
Parser.Lex(); // Eat the '#'.
|
|
SMLoc Loc = Parser.getTok().getLoc();
|
|
|
|
const MCExpr *MemBarrierID;
|
|
if (getParser().ParseExpression(MemBarrierID)) {
|
|
Error(Loc, "illegal expression");
|
|
return MatchOperand_ParseFail;
|
|
}
|
|
|
|
const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(MemBarrierID);
|
|
if (!CE) {
|
|
Error(Loc, "constant expression expected");
|
|
return MatchOperand_ParseFail;
|
|
}
|
|
|
|
int Val = CE->getValue();
|
|
if (Val & ~0xf) {
|
|
Error(Loc, "immediate value out of range");
|
|
return MatchOperand_ParseFail;
|
|
}
|
|
|
|
Opt = ARM_MB::RESERVED_0 + Val;
|
|
} else
|
|
return MatchOperand_ParseFail;
|
|
|
|
Operands.push_back(ARMOperand::CreateMemBarrierOpt((ARM_MB::MemBOpt)Opt, S));
|
|
return MatchOperand_Success;
|
|
}
|
|
|
|
/// parseProcIFlagsOperand - Try to parse iflags from CPS instruction.
|
|
ARMAsmParser::OperandMatchResultTy ARMAsmParser::
|
|
parseProcIFlagsOperand(SmallVectorImpl<MCParsedAsmOperand*> &Operands) {
|
|
SMLoc S = Parser.getTok().getLoc();
|
|
const AsmToken &Tok = Parser.getTok();
|
|
if (!Tok.is(AsmToken::Identifier))
|
|
return MatchOperand_NoMatch;
|
|
StringRef IFlagsStr = Tok.getString();
|
|
|
|
// An iflags string of "none" is interpreted to mean that none of the AIF
|
|
// bits are set. Not a terribly useful instruction, but a valid encoding.
|
|
unsigned IFlags = 0;
|
|
if (IFlagsStr != "none") {
|
|
for (int i = 0, e = IFlagsStr.size(); i != e; ++i) {
|
|
unsigned Flag = StringSwitch<unsigned>(IFlagsStr.substr(i, 1))
|
|
.Case("a", ARM_PROC::A)
|
|
.Case("i", ARM_PROC::I)
|
|
.Case("f", ARM_PROC::F)
|
|
.Default(~0U);
|
|
|
|
// If some specific iflag is already set, it means that some letter is
|
|
// present more than once, this is not acceptable.
|
|
if (Flag == ~0U || (IFlags & Flag))
|
|
return MatchOperand_NoMatch;
|
|
|
|
IFlags |= Flag;
|
|
}
|
|
}
|
|
|
|
Parser.Lex(); // Eat identifier token.
|
|
Operands.push_back(ARMOperand::CreateProcIFlags((ARM_PROC::IFlags)IFlags, S));
|
|
return MatchOperand_Success;
|
|
}
|
|
|
|
/// parseMSRMaskOperand - Try to parse mask flags from MSR instruction.
|
|
ARMAsmParser::OperandMatchResultTy ARMAsmParser::
|
|
parseMSRMaskOperand(SmallVectorImpl<MCParsedAsmOperand*> &Operands) {
|
|
SMLoc S = Parser.getTok().getLoc();
|
|
const AsmToken &Tok = Parser.getTok();
|
|
if (!Tok.is(AsmToken::Identifier))
|
|
return MatchOperand_NoMatch;
|
|
StringRef Mask = Tok.getString();
|
|
|
|
if (isMClass()) {
|
|
// See ARMv6-M 10.1.1
|
|
std::string Name = Mask.lower();
|
|
unsigned FlagsVal = StringSwitch<unsigned>(Name)
|
|
// Note: in the documentation:
|
|
// ARM deprecates using MSR APSR without a _<bits> qualifier as an alias
|
|
// for MSR APSR_nzcvq.
|
|
// but we do make it an alias here. This is so to get the "mask encoding"
|
|
// bits correct on MSR APSR writes.
|
|
//
|
|
// FIXME: Note the 0xc00 "mask encoding" bits version of the registers
|
|
// should really only be allowed when writing a special register. Note
|
|
// they get dropped in the MRS instruction reading a special register as
|
|
// the SYSm field is only 8 bits.
|
|
//
|
|
// FIXME: the _g and _nzcvqg versions are only allowed if the processor
|
|
// includes the DSP extension but that is not checked.
|
|
.Case("apsr", 0x800)
|
|
.Case("apsr_nzcvq", 0x800)
|
|
.Case("apsr_g", 0x400)
|
|
.Case("apsr_nzcvqg", 0xc00)
|
|
.Case("iapsr", 0x801)
|
|
.Case("iapsr_nzcvq", 0x801)
|
|
.Case("iapsr_g", 0x401)
|
|
.Case("iapsr_nzcvqg", 0xc01)
|
|
.Case("eapsr", 0x802)
|
|
.Case("eapsr_nzcvq", 0x802)
|
|
.Case("eapsr_g", 0x402)
|
|
.Case("eapsr_nzcvqg", 0xc02)
|
|
.Case("xpsr", 0x803)
|
|
.Case("xpsr_nzcvq", 0x803)
|
|
.Case("xpsr_g", 0x403)
|
|
.Case("xpsr_nzcvqg", 0xc03)
|
|
.Case("ipsr", 0x805)
|
|
.Case("epsr", 0x806)
|
|
.Case("iepsr", 0x807)
|
|
.Case("msp", 0x808)
|
|
.Case("psp", 0x809)
|
|
.Case("primask", 0x810)
|
|
.Case("basepri", 0x811)
|
|
.Case("basepri_max", 0x812)
|
|
.Case("faultmask", 0x813)
|
|
.Case("control", 0x814)
|
|
.Default(~0U);
|
|
|
|
if (FlagsVal == ~0U)
|
|
return MatchOperand_NoMatch;
|
|
|
|
if (!hasV7Ops() && FlagsVal >= 0x811 && FlagsVal <= 0x813)
|
|
// basepri, basepri_max and faultmask only valid for V7m.
|
|
return MatchOperand_NoMatch;
|
|
|
|
Parser.Lex(); // Eat identifier token.
|
|
Operands.push_back(ARMOperand::CreateMSRMask(FlagsVal, S));
|
|
return MatchOperand_Success;
|
|
}
|
|
|
|
// Split spec_reg from flag, example: CPSR_sxf => "CPSR" and "sxf"
|
|
size_t Start = 0, Next = Mask.find('_');
|
|
StringRef Flags = "";
|
|
std::string SpecReg = Mask.slice(Start, Next).lower();
|
|
if (Next != StringRef::npos)
|
|
Flags = Mask.slice(Next+1, Mask.size());
|
|
|
|
// FlagsVal contains the complete mask:
|
|
// 3-0: Mask
|
|
// 4: Special Reg (cpsr, apsr => 0; spsr => 1)
|
|
unsigned FlagsVal = 0;
|
|
|
|
if (SpecReg == "apsr") {
|
|
FlagsVal = StringSwitch<unsigned>(Flags)
|
|
.Case("nzcvq", 0x8) // same as CPSR_f
|
|
.Case("g", 0x4) // same as CPSR_s
|
|
.Case("nzcvqg", 0xc) // same as CPSR_fs
|
|
.Default(~0U);
|
|
|
|
if (FlagsVal == ~0U) {
|
|
if (!Flags.empty())
|
|
return MatchOperand_NoMatch;
|
|
else
|
|
FlagsVal = 8; // No flag
|
|
}
|
|
} else if (SpecReg == "cpsr" || SpecReg == "spsr") {
|
|
// cpsr_all is an alias for cpsr_fc, as is plain cpsr.
|
|
if (Flags == "all" || Flags == "")
|
|
Flags = "fc";
|
|
for (int i = 0, e = Flags.size(); i != e; ++i) {
|
|
unsigned Flag = StringSwitch<unsigned>(Flags.substr(i, 1))
|
|
.Case("c", 1)
|
|
.Case("x", 2)
|
|
.Case("s", 4)
|
|
.Case("f", 8)
|
|
.Default(~0U);
|
|
|
|
// If some specific flag is already set, it means that some letter is
|
|
// present more than once, this is not acceptable.
|
|
if (FlagsVal == ~0U || (FlagsVal & Flag))
|
|
return MatchOperand_NoMatch;
|
|
FlagsVal |= Flag;
|
|
}
|
|
} else // No match for special register.
|
|
return MatchOperand_NoMatch;
|
|
|
|
// Special register without flags is NOT equivalent to "fc" flags.
|
|
// NOTE: This is a divergence from gas' behavior. Uncommenting the following
|
|
// two lines would enable gas compatibility at the expense of breaking
|
|
// round-tripping.
|
|
//
|
|
// if (!FlagsVal)
|
|
// FlagsVal = 0x9;
|
|
|
|
// Bit 4: Special Reg (cpsr, apsr => 0; spsr => 1)
|
|
if (SpecReg == "spsr")
|
|
FlagsVal |= 16;
|
|
|
|
Parser.Lex(); // Eat identifier token.
|
|
Operands.push_back(ARMOperand::CreateMSRMask(FlagsVal, S));
|
|
return MatchOperand_Success;
|
|
}
|
|
|
|
ARMAsmParser::OperandMatchResultTy ARMAsmParser::
|
|
parsePKHImm(SmallVectorImpl<MCParsedAsmOperand*> &Operands, StringRef Op,
|
|
int Low, int High) {
|
|
const AsmToken &Tok = Parser.getTok();
|
|
if (Tok.isNot(AsmToken::Identifier)) {
|
|
Error(Parser.getTok().getLoc(), Op + " operand expected.");
|
|
return MatchOperand_ParseFail;
|
|
}
|
|
StringRef ShiftName = Tok.getString();
|
|
std::string LowerOp = Op.lower();
|
|
std::string UpperOp = Op.upper();
|
|
if (ShiftName != LowerOp && ShiftName != UpperOp) {
|
|
Error(Parser.getTok().getLoc(), Op + " operand expected.");
|
|
return MatchOperand_ParseFail;
|
|
}
|
|
Parser.Lex(); // Eat shift type token.
|
|
|
|
// There must be a '#' and a shift amount.
|
|
if (Parser.getTok().isNot(AsmToken::Hash) &&
|
|
Parser.getTok().isNot(AsmToken::Dollar)) {
|
|
Error(Parser.getTok().getLoc(), "'#' expected");
|
|
return MatchOperand_ParseFail;
|
|
}
|
|
Parser.Lex(); // Eat hash token.
|
|
|
|
const MCExpr *ShiftAmount;
|
|
SMLoc Loc = Parser.getTok().getLoc();
|
|
if (getParser().ParseExpression(ShiftAmount)) {
|
|
Error(Loc, "illegal expression");
|
|
return MatchOperand_ParseFail;
|
|
}
|
|
const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(ShiftAmount);
|
|
if (!CE) {
|
|
Error(Loc, "constant expression expected");
|
|
return MatchOperand_ParseFail;
|
|
}
|
|
int Val = CE->getValue();
|
|
if (Val < Low || Val > High) {
|
|
Error(Loc, "immediate value out of range");
|
|
return MatchOperand_ParseFail;
|
|
}
|
|
|
|
Operands.push_back(ARMOperand::CreateImm(CE, Loc, Parser.getTok().getLoc()));
|
|
|
|
return MatchOperand_Success;
|
|
}
|
|
|
|
ARMAsmParser::OperandMatchResultTy ARMAsmParser::
|
|
parseSetEndImm(SmallVectorImpl<MCParsedAsmOperand*> &Operands) {
|
|
const AsmToken &Tok = Parser.getTok();
|
|
SMLoc S = Tok.getLoc();
|
|
if (Tok.isNot(AsmToken::Identifier)) {
|
|
Error(Tok.getLoc(), "'be' or 'le' operand expected");
|
|
return MatchOperand_ParseFail;
|
|
}
|
|
int Val = StringSwitch<int>(Tok.getString())
|
|
.Case("be", 1)
|
|
.Case("le", 0)
|
|
.Default(-1);
|
|
Parser.Lex(); // Eat the token.
|
|
|
|
if (Val == -1) {
|
|
Error(Tok.getLoc(), "'be' or 'le' operand expected");
|
|
return MatchOperand_ParseFail;
|
|
}
|
|
Operands.push_back(ARMOperand::CreateImm(MCConstantExpr::Create(Val,
|
|
getContext()),
|
|
S, Parser.getTok().getLoc()));
|
|
return MatchOperand_Success;
|
|
}
|
|
|
|
/// parseShifterImm - Parse the shifter immediate operand for SSAT/USAT
|
|
/// instructions. Legal values are:
|
|
/// lsl #n 'n' in [0,31]
|
|
/// asr #n 'n' in [1,32]
|
|
/// n == 32 encoded as n == 0.
|
|
ARMAsmParser::OperandMatchResultTy ARMAsmParser::
|
|
parseShifterImm(SmallVectorImpl<MCParsedAsmOperand*> &Operands) {
|
|
const AsmToken &Tok = Parser.getTok();
|
|
SMLoc S = Tok.getLoc();
|
|
if (Tok.isNot(AsmToken::Identifier)) {
|
|
Error(S, "shift operator 'asr' or 'lsl' expected");
|
|
return MatchOperand_ParseFail;
|
|
}
|
|
StringRef ShiftName = Tok.getString();
|
|
bool isASR;
|
|
if (ShiftName == "lsl" || ShiftName == "LSL")
|
|
isASR = false;
|
|
else if (ShiftName == "asr" || ShiftName == "ASR")
|
|
isASR = true;
|
|
else {
|
|
Error(S, "shift operator 'asr' or 'lsl' expected");
|
|
return MatchOperand_ParseFail;
|
|
}
|
|
Parser.Lex(); // Eat the operator.
|
|
|
|
// A '#' and a shift amount.
|
|
if (Parser.getTok().isNot(AsmToken::Hash) &&
|
|
Parser.getTok().isNot(AsmToken::Dollar)) {
|
|
Error(Parser.getTok().getLoc(), "'#' expected");
|
|
return MatchOperand_ParseFail;
|
|
}
|
|
Parser.Lex(); // Eat hash token.
|
|
|
|
const MCExpr *ShiftAmount;
|
|
SMLoc E = Parser.getTok().getLoc();
|
|
if (getParser().ParseExpression(ShiftAmount)) {
|
|
Error(E, "malformed shift expression");
|
|
return MatchOperand_ParseFail;
|
|
}
|
|
const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(ShiftAmount);
|
|
if (!CE) {
|
|
Error(E, "shift amount must be an immediate");
|
|
return MatchOperand_ParseFail;
|
|
}
|
|
|
|
int64_t Val = CE->getValue();
|
|
if (isASR) {
|
|
// Shift amount must be in [1,32]
|
|
if (Val < 1 || Val > 32) {
|
|
Error(E, "'asr' shift amount must be in range [1,32]");
|
|
return MatchOperand_ParseFail;
|
|
}
|
|
// asr #32 encoded as asr #0, but is not allowed in Thumb2 mode.
|
|
if (isThumb() && Val == 32) {
|
|
Error(E, "'asr #32' shift amount not allowed in Thumb mode");
|
|
return MatchOperand_ParseFail;
|
|
}
|
|
if (Val == 32) Val = 0;
|
|
} else {
|
|
// Shift amount must be in [1,32]
|
|
if (Val < 0 || Val > 31) {
|
|
Error(E, "'lsr' shift amount must be in range [0,31]");
|
|
return MatchOperand_ParseFail;
|
|
}
|
|
}
|
|
|
|
E = Parser.getTok().getLoc();
|
|
Operands.push_back(ARMOperand::CreateShifterImm(isASR, Val, S, E));
|
|
|
|
return MatchOperand_Success;
|
|
}
|
|
|
|
/// parseRotImm - Parse the shifter immediate operand for SXTB/UXTB family
|
|
/// of instructions. Legal values are:
|
|
/// ror #n 'n' in {0, 8, 16, 24}
|
|
ARMAsmParser::OperandMatchResultTy ARMAsmParser::
|
|
parseRotImm(SmallVectorImpl<MCParsedAsmOperand*> &Operands) {
|
|
const AsmToken &Tok = Parser.getTok();
|
|
SMLoc S = Tok.getLoc();
|
|
if (Tok.isNot(AsmToken::Identifier))
|
|
return MatchOperand_NoMatch;
|
|
StringRef ShiftName = Tok.getString();
|
|
if (ShiftName != "ror" && ShiftName != "ROR")
|
|
return MatchOperand_NoMatch;
|
|
Parser.Lex(); // Eat the operator.
|
|
|
|
// A '#' and a rotate amount.
|
|
if (Parser.getTok().isNot(AsmToken::Hash) &&
|
|
Parser.getTok().isNot(AsmToken::Dollar)) {
|
|
Error(Parser.getTok().getLoc(), "'#' expected");
|
|
return MatchOperand_ParseFail;
|
|
}
|
|
Parser.Lex(); // Eat hash token.
|
|
|
|
const MCExpr *ShiftAmount;
|
|
SMLoc E = Parser.getTok().getLoc();
|
|
if (getParser().ParseExpression(ShiftAmount)) {
|
|
Error(E, "malformed rotate expression");
|
|
return MatchOperand_ParseFail;
|
|
}
|
|
const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(ShiftAmount);
|
|
if (!CE) {
|
|
Error(E, "rotate amount must be an immediate");
|
|
return MatchOperand_ParseFail;
|
|
}
|
|
|
|
int64_t Val = CE->getValue();
|
|
// Shift amount must be in {0, 8, 16, 24} (0 is undocumented extension)
|
|
// normally, zero is represented in asm by omitting the rotate operand
|
|
// entirely.
|
|
if (Val != 8 && Val != 16 && Val != 24 && Val != 0) {
|
|
Error(E, "'ror' rotate amount must be 8, 16, or 24");
|
|
return MatchOperand_ParseFail;
|
|
}
|
|
|
|
E = Parser.getTok().getLoc();
|
|
Operands.push_back(ARMOperand::CreateRotImm(Val, S, E));
|
|
|
|
return MatchOperand_Success;
|
|
}
|
|
|
|
ARMAsmParser::OperandMatchResultTy ARMAsmParser::
|
|
parseBitfield(SmallVectorImpl<MCParsedAsmOperand*> &Operands) {
|
|
SMLoc S = Parser.getTok().getLoc();
|
|
// The bitfield descriptor is really two operands, the LSB and the width.
|
|
if (Parser.getTok().isNot(AsmToken::Hash) &&
|
|
Parser.getTok().isNot(AsmToken::Dollar)) {
|
|
Error(Parser.getTok().getLoc(), "'#' expected");
|
|
return MatchOperand_ParseFail;
|
|
}
|
|
Parser.Lex(); // Eat hash token.
|
|
|
|
const MCExpr *LSBExpr;
|
|
SMLoc E = Parser.getTok().getLoc();
|
|
if (getParser().ParseExpression(LSBExpr)) {
|
|
Error(E, "malformed immediate expression");
|
|
return MatchOperand_ParseFail;
|
|
}
|
|
const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(LSBExpr);
|
|
if (!CE) {
|
|
Error(E, "'lsb' operand must be an immediate");
|
|
return MatchOperand_ParseFail;
|
|
}
|
|
|
|
int64_t LSB = CE->getValue();
|
|
// The LSB must be in the range [0,31]
|
|
if (LSB < 0 || LSB > 31) {
|
|
Error(E, "'lsb' operand must be in the range [0,31]");
|
|
return MatchOperand_ParseFail;
|
|
}
|
|
E = Parser.getTok().getLoc();
|
|
|
|
// Expect another immediate operand.
|
|
if (Parser.getTok().isNot(AsmToken::Comma)) {
|
|
Error(Parser.getTok().getLoc(), "too few operands");
|
|
return MatchOperand_ParseFail;
|
|
}
|
|
Parser.Lex(); // Eat hash token.
|
|
if (Parser.getTok().isNot(AsmToken::Hash) &&
|
|
Parser.getTok().isNot(AsmToken::Dollar)) {
|
|
Error(Parser.getTok().getLoc(), "'#' expected");
|
|
return MatchOperand_ParseFail;
|
|
}
|
|
Parser.Lex(); // Eat hash token.
|
|
|
|
const MCExpr *WidthExpr;
|
|
if (getParser().ParseExpression(WidthExpr)) {
|
|
Error(E, "malformed immediate expression");
|
|
return MatchOperand_ParseFail;
|
|
}
|
|
CE = dyn_cast<MCConstantExpr>(WidthExpr);
|
|
if (!CE) {
|
|
Error(E, "'width' operand must be an immediate");
|
|
return MatchOperand_ParseFail;
|
|
}
|
|
|
|
int64_t Width = CE->getValue();
|
|
// The LSB must be in the range [1,32-lsb]
|
|
if (Width < 1 || Width > 32 - LSB) {
|
|
Error(E, "'width' operand must be in the range [1,32-lsb]");
|
|
return MatchOperand_ParseFail;
|
|
}
|
|
E = Parser.getTok().getLoc();
|
|
|
|
Operands.push_back(ARMOperand::CreateBitfield(LSB, Width, S, E));
|
|
|
|
return MatchOperand_Success;
|
|
}
|
|
|
|
ARMAsmParser::OperandMatchResultTy ARMAsmParser::
|
|
parsePostIdxReg(SmallVectorImpl<MCParsedAsmOperand*> &Operands) {
|
|
// Check for a post-index addressing register operand. Specifically:
|
|
// postidx_reg := '+' register {, shift}
|
|
// | '-' register {, shift}
|
|
// | register {, shift}
|
|
|
|
// This method must return MatchOperand_NoMatch without consuming any tokens
|
|
// in the case where there is no match, as other alternatives take other
|
|
// parse methods.
|
|
AsmToken Tok = Parser.getTok();
|
|
SMLoc S = Tok.getLoc();
|
|
bool haveEaten = false;
|
|
bool isAdd = true;
|
|
int Reg = -1;
|
|
if (Tok.is(AsmToken::Plus)) {
|
|
Parser.Lex(); // Eat the '+' token.
|
|
haveEaten = true;
|
|
} else if (Tok.is(AsmToken::Minus)) {
|
|
Parser.Lex(); // Eat the '-' token.
|
|
isAdd = false;
|
|
haveEaten = true;
|
|
}
|
|
if (Parser.getTok().is(AsmToken::Identifier))
|
|
Reg = tryParseRegister();
|
|
if (Reg == -1) {
|
|
if (!haveEaten)
|
|
return MatchOperand_NoMatch;
|
|
Error(Parser.getTok().getLoc(), "register expected");
|
|
return MatchOperand_ParseFail;
|
|
}
|
|
SMLoc E = Parser.getTok().getLoc();
|
|
|
|
ARM_AM::ShiftOpc ShiftTy = ARM_AM::no_shift;
|
|
unsigned ShiftImm = 0;
|
|
if (Parser.getTok().is(AsmToken::Comma)) {
|
|
Parser.Lex(); // Eat the ','.
|
|
if (parseMemRegOffsetShift(ShiftTy, ShiftImm))
|
|
return MatchOperand_ParseFail;
|
|
}
|
|
|
|
Operands.push_back(ARMOperand::CreatePostIdxReg(Reg, isAdd, ShiftTy,
|
|
ShiftImm, S, E));
|
|
|
|
return MatchOperand_Success;
|
|
}
|
|
|
|
ARMAsmParser::OperandMatchResultTy ARMAsmParser::
|
|
parseAM3Offset(SmallVectorImpl<MCParsedAsmOperand*> &Operands) {
|
|
// Check for a post-index addressing register operand. Specifically:
|
|
// am3offset := '+' register
|
|
// | '-' register
|
|
// | register
|
|
// | # imm
|
|
// | # + imm
|
|
// | # - imm
|
|
|
|
// This method must return MatchOperand_NoMatch without consuming any tokens
|
|
// in the case where there is no match, as other alternatives take other
|
|
// parse methods.
|
|
AsmToken Tok = Parser.getTok();
|
|
SMLoc S = Tok.getLoc();
|
|
|
|
// Do immediates first, as we always parse those if we have a '#'.
|
|
if (Parser.getTok().is(AsmToken::Hash) ||
|
|
Parser.getTok().is(AsmToken::Dollar)) {
|
|
Parser.Lex(); // Eat the '#'.
|
|
// Explicitly look for a '-', as we need to encode negative zero
|
|
// differently.
|
|
bool isNegative = Parser.getTok().is(AsmToken::Minus);
|
|
const MCExpr *Offset;
|
|
if (getParser().ParseExpression(Offset))
|
|
return MatchOperand_ParseFail;
|
|
const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(Offset);
|
|
if (!CE) {
|
|
Error(S, "constant expression expected");
|
|
return MatchOperand_ParseFail;
|
|
}
|
|
SMLoc E = Tok.getLoc();
|
|
// Negative zero is encoded as the flag value INT32_MIN.
|
|
int32_t Val = CE->getValue();
|
|
if (isNegative && Val == 0)
|
|
Val = INT32_MIN;
|
|
|
|
Operands.push_back(
|
|
ARMOperand::CreateImm(MCConstantExpr::Create(Val, getContext()), S, E));
|
|
|
|
return MatchOperand_Success;
|
|
}
|
|
|
|
|
|
bool haveEaten = false;
|
|
bool isAdd = true;
|
|
int Reg = -1;
|
|
if (Tok.is(AsmToken::Plus)) {
|
|
Parser.Lex(); // Eat the '+' token.
|
|
haveEaten = true;
|
|
} else if (Tok.is(AsmToken::Minus)) {
|
|
Parser.Lex(); // Eat the '-' token.
|
|
isAdd = false;
|
|
haveEaten = true;
|
|
}
|
|
if (Parser.getTok().is(AsmToken::Identifier))
|
|
Reg = tryParseRegister();
|
|
if (Reg == -1) {
|
|
if (!haveEaten)
|
|
return MatchOperand_NoMatch;
|
|
Error(Parser.getTok().getLoc(), "register expected");
|
|
return MatchOperand_ParseFail;
|
|
}
|
|
SMLoc E = Parser.getTok().getLoc();
|
|
|
|
Operands.push_back(ARMOperand::CreatePostIdxReg(Reg, isAdd, ARM_AM::no_shift,
|
|
0, S, E));
|
|
|
|
return MatchOperand_Success;
|
|
}
|
|
|
|
/// cvtT2LdrdPre - Convert parsed operands to MCInst.
|
|
/// Needed here because the Asm Gen Matcher can't handle properly tied operands
|
|
/// when they refer multiple MIOperands inside a single one.
|
|
void ARMAsmParser::
|
|
cvtT2LdrdPre(MCInst &Inst,
|
|
const SmallVectorImpl<MCParsedAsmOperand*> &Operands) {
|
|
// Rt, Rt2
|
|
((ARMOperand*)Operands[2])->addRegOperands(Inst, 1);
|
|
((ARMOperand*)Operands[3])->addRegOperands(Inst, 1);
|
|
// Create a writeback register dummy placeholder.
|
|
Inst.addOperand(MCOperand::CreateReg(0));
|
|
// addr
|
|
((ARMOperand*)Operands[4])->addMemImm8s4OffsetOperands(Inst, 2);
|
|
// pred
|
|
((ARMOperand*)Operands[1])->addCondCodeOperands(Inst, 2);
|
|
}
|
|
|
|
/// cvtT2StrdPre - Convert parsed operands to MCInst.
|
|
/// Needed here because the Asm Gen Matcher can't handle properly tied operands
|
|
/// when they refer multiple MIOperands inside a single one.
|
|
void ARMAsmParser::
|
|
cvtT2StrdPre(MCInst &Inst,
|
|
const SmallVectorImpl<MCParsedAsmOperand*> &Operands) {
|
|
// Create a writeback register dummy placeholder.
|
|
Inst.addOperand(MCOperand::CreateReg(0));
|
|
// Rt, Rt2
|
|
((ARMOperand*)Operands[2])->addRegOperands(Inst, 1);
|
|
((ARMOperand*)Operands[3])->addRegOperands(Inst, 1);
|
|
// addr
|
|
((ARMOperand*)Operands[4])->addMemImm8s4OffsetOperands(Inst, 2);
|
|
// pred
|
|
((ARMOperand*)Operands[1])->addCondCodeOperands(Inst, 2);
|
|
}
|
|
|
|
/// cvtLdWriteBackRegT2AddrModeImm8 - Convert parsed operands to MCInst.
|
|
/// Needed here because the Asm Gen Matcher can't handle properly tied operands
|
|
/// when they refer multiple MIOperands inside a single one.
|
|
void ARMAsmParser::
|
|
cvtLdWriteBackRegT2AddrModeImm8(MCInst &Inst,
|
|
const SmallVectorImpl<MCParsedAsmOperand*> &Operands) {
|
|
((ARMOperand*)Operands[2])->addRegOperands(Inst, 1);
|
|
|
|
// Create a writeback register dummy placeholder.
|
|
Inst.addOperand(MCOperand::CreateImm(0));
|
|
|
|
((ARMOperand*)Operands[3])->addMemImm8OffsetOperands(Inst, 2);
|
|
((ARMOperand*)Operands[1])->addCondCodeOperands(Inst, 2);
|
|
}
|
|
|
|
/// cvtStWriteBackRegT2AddrModeImm8 - Convert parsed operands to MCInst.
|
|
/// Needed here because the Asm Gen Matcher can't handle properly tied operands
|
|
/// when they refer multiple MIOperands inside a single one.
|
|
void ARMAsmParser::
|
|
cvtStWriteBackRegT2AddrModeImm8(MCInst &Inst,
|
|
const SmallVectorImpl<MCParsedAsmOperand*> &Operands) {
|
|
// Create a writeback register dummy placeholder.
|
|
Inst.addOperand(MCOperand::CreateImm(0));
|
|
((ARMOperand*)Operands[2])->addRegOperands(Inst, 1);
|
|
((ARMOperand*)Operands[3])->addMemImm8OffsetOperands(Inst, 2);
|
|
((ARMOperand*)Operands[1])->addCondCodeOperands(Inst, 2);
|
|
}
|
|
|
|
/// cvtLdWriteBackRegAddrMode2 - Convert parsed operands to MCInst.
|
|
/// Needed here because the Asm Gen Matcher can't handle properly tied operands
|
|
/// when they refer multiple MIOperands inside a single one.
|
|
void ARMAsmParser::
|
|
cvtLdWriteBackRegAddrMode2(MCInst &Inst,
|
|
const SmallVectorImpl<MCParsedAsmOperand*> &Operands) {
|
|
((ARMOperand*)Operands[2])->addRegOperands(Inst, 1);
|
|
|
|
// Create a writeback register dummy placeholder.
|
|
Inst.addOperand(MCOperand::CreateImm(0));
|
|
|
|
((ARMOperand*)Operands[3])->addAddrMode2Operands(Inst, 3);
|
|
((ARMOperand*)Operands[1])->addCondCodeOperands(Inst, 2);
|
|
}
|
|
|
|
/// cvtLdWriteBackRegAddrModeImm12 - Convert parsed operands to MCInst.
|
|
/// Needed here because the Asm Gen Matcher can't handle properly tied operands
|
|
/// when they refer multiple MIOperands inside a single one.
|
|
void ARMAsmParser::
|
|
cvtLdWriteBackRegAddrModeImm12(MCInst &Inst,
|
|
const SmallVectorImpl<MCParsedAsmOperand*> &Operands) {
|
|
((ARMOperand*)Operands[2])->addRegOperands(Inst, 1);
|
|
|
|
// Create a writeback register dummy placeholder.
|
|
Inst.addOperand(MCOperand::CreateImm(0));
|
|
|
|
((ARMOperand*)Operands[3])->addMemImm12OffsetOperands(Inst, 2);
|
|
((ARMOperand*)Operands[1])->addCondCodeOperands(Inst, 2);
|
|
}
|
|
|
|
|
|
/// cvtStWriteBackRegAddrModeImm12 - Convert parsed operands to MCInst.
|
|
/// Needed here because the Asm Gen Matcher can't handle properly tied operands
|
|
/// when they refer multiple MIOperands inside a single one.
|
|
void ARMAsmParser::
|
|
cvtStWriteBackRegAddrModeImm12(MCInst &Inst,
|
|
const SmallVectorImpl<MCParsedAsmOperand*> &Operands) {
|
|
// Create a writeback register dummy placeholder.
|
|
Inst.addOperand(MCOperand::CreateImm(0));
|
|
((ARMOperand*)Operands[2])->addRegOperands(Inst, 1);
|
|
((ARMOperand*)Operands[3])->addMemImm12OffsetOperands(Inst, 2);
|
|
((ARMOperand*)Operands[1])->addCondCodeOperands(Inst, 2);
|
|
}
|
|
|
|
/// cvtStWriteBackRegAddrMode2 - Convert parsed operands to MCInst.
|
|
/// Needed here because the Asm Gen Matcher can't handle properly tied operands
|
|
/// when they refer multiple MIOperands inside a single one.
|
|
void ARMAsmParser::
|
|
cvtStWriteBackRegAddrMode2(MCInst &Inst,
|
|
const SmallVectorImpl<MCParsedAsmOperand*> &Operands) {
|
|
// Create a writeback register dummy placeholder.
|
|
Inst.addOperand(MCOperand::CreateImm(0));
|
|
((ARMOperand*)Operands[2])->addRegOperands(Inst, 1);
|
|
((ARMOperand*)Operands[3])->addAddrMode2Operands(Inst, 3);
|
|
((ARMOperand*)Operands[1])->addCondCodeOperands(Inst, 2);
|
|
}
|
|
|
|
/// cvtStWriteBackRegAddrMode3 - Convert parsed operands to MCInst.
|
|
/// Needed here because the Asm Gen Matcher can't handle properly tied operands
|
|
/// when they refer multiple MIOperands inside a single one.
|
|
void ARMAsmParser::
|
|
cvtStWriteBackRegAddrMode3(MCInst &Inst,
|
|
const SmallVectorImpl<MCParsedAsmOperand*> &Operands) {
|
|
// Create a writeback register dummy placeholder.
|
|
Inst.addOperand(MCOperand::CreateImm(0));
|
|
((ARMOperand*)Operands[2])->addRegOperands(Inst, 1);
|
|
((ARMOperand*)Operands[3])->addAddrMode3Operands(Inst, 3);
|
|
((ARMOperand*)Operands[1])->addCondCodeOperands(Inst, 2);
|
|
}
|
|
|
|
/// cvtLdExtTWriteBackImm - Convert parsed operands to MCInst.
|
|
/// Needed here because the Asm Gen Matcher can't handle properly tied operands
|
|
/// when they refer multiple MIOperands inside a single one.
|
|
void ARMAsmParser::
|
|
cvtLdExtTWriteBackImm(MCInst &Inst,
|
|
const SmallVectorImpl<MCParsedAsmOperand*> &Operands) {
|
|
// Rt
|
|
((ARMOperand*)Operands[2])->addRegOperands(Inst, 1);
|
|
// Create a writeback register dummy placeholder.
|
|
Inst.addOperand(MCOperand::CreateImm(0));
|
|
// addr
|
|
((ARMOperand*)Operands[3])->addMemNoOffsetOperands(Inst, 1);
|
|
// offset
|
|
((ARMOperand*)Operands[4])->addPostIdxImm8Operands(Inst, 1);
|
|
// pred
|
|
((ARMOperand*)Operands[1])->addCondCodeOperands(Inst, 2);
|
|
}
|
|
|
|
/// cvtLdExtTWriteBackReg - Convert parsed operands to MCInst.
|
|
/// Needed here because the Asm Gen Matcher can't handle properly tied operands
|
|
/// when they refer multiple MIOperands inside a single one.
|
|
void ARMAsmParser::
|
|
cvtLdExtTWriteBackReg(MCInst &Inst,
|
|
const SmallVectorImpl<MCParsedAsmOperand*> &Operands) {
|
|
// Rt
|
|
((ARMOperand*)Operands[2])->addRegOperands(Inst, 1);
|
|
// Create a writeback register dummy placeholder.
|
|
Inst.addOperand(MCOperand::CreateImm(0));
|
|
// addr
|
|
((ARMOperand*)Operands[3])->addMemNoOffsetOperands(Inst, 1);
|
|
// offset
|
|
((ARMOperand*)Operands[4])->addPostIdxRegOperands(Inst, 2);
|
|
// pred
|
|
((ARMOperand*)Operands[1])->addCondCodeOperands(Inst, 2);
|
|
}
|
|
|
|
/// cvtStExtTWriteBackImm - Convert parsed operands to MCInst.
|
|
/// Needed here because the Asm Gen Matcher can't handle properly tied operands
|
|
/// when they refer multiple MIOperands inside a single one.
|
|
void ARMAsmParser::
|
|
cvtStExtTWriteBackImm(MCInst &Inst,
|
|
const SmallVectorImpl<MCParsedAsmOperand*> &Operands) {
|
|
// Create a writeback register dummy placeholder.
|
|
Inst.addOperand(MCOperand::CreateImm(0));
|
|
// Rt
|
|
((ARMOperand*)Operands[2])->addRegOperands(Inst, 1);
|
|
// addr
|
|
((ARMOperand*)Operands[3])->addMemNoOffsetOperands(Inst, 1);
|
|
// offset
|
|
((ARMOperand*)Operands[4])->addPostIdxImm8Operands(Inst, 1);
|
|
// pred
|
|
((ARMOperand*)Operands[1])->addCondCodeOperands(Inst, 2);
|
|
}
|
|
|
|
/// cvtStExtTWriteBackReg - Convert parsed operands to MCInst.
|
|
/// Needed here because the Asm Gen Matcher can't handle properly tied operands
|
|
/// when they refer multiple MIOperands inside a single one.
|
|
void ARMAsmParser::
|
|
cvtStExtTWriteBackReg(MCInst &Inst,
|
|
const SmallVectorImpl<MCParsedAsmOperand*> &Operands) {
|
|
// Create a writeback register dummy placeholder.
|
|
Inst.addOperand(MCOperand::CreateImm(0));
|
|
// Rt
|
|
((ARMOperand*)Operands[2])->addRegOperands(Inst, 1);
|
|
// addr
|
|
((ARMOperand*)Operands[3])->addMemNoOffsetOperands(Inst, 1);
|
|
// offset
|
|
((ARMOperand*)Operands[4])->addPostIdxRegOperands(Inst, 2);
|
|
// pred
|
|
((ARMOperand*)Operands[1])->addCondCodeOperands(Inst, 2);
|
|
}
|
|
|
|
/// cvtLdrdPre - Convert parsed operands to MCInst.
|
|
/// Needed here because the Asm Gen Matcher can't handle properly tied operands
|
|
/// when they refer multiple MIOperands inside a single one.
|
|
void ARMAsmParser::
|
|
cvtLdrdPre(MCInst &Inst,
|
|
const SmallVectorImpl<MCParsedAsmOperand*> &Operands) {
|
|
// Rt, Rt2
|
|
((ARMOperand*)Operands[2])->addRegOperands(Inst, 1);
|
|
((ARMOperand*)Operands[3])->addRegOperands(Inst, 1);
|
|
// Create a writeback register dummy placeholder.
|
|
Inst.addOperand(MCOperand::CreateImm(0));
|
|
// addr
|
|
((ARMOperand*)Operands[4])->addAddrMode3Operands(Inst, 3);
|
|
// pred
|
|
((ARMOperand*)Operands[1])->addCondCodeOperands(Inst, 2);
|
|
}
|
|
|
|
/// cvtStrdPre - Convert parsed operands to MCInst.
|
|
/// Needed here because the Asm Gen Matcher can't handle properly tied operands
|
|
/// when they refer multiple MIOperands inside a single one.
|
|
void ARMAsmParser::
|
|
cvtStrdPre(MCInst &Inst,
|
|
const SmallVectorImpl<MCParsedAsmOperand*> &Operands) {
|
|
// Create a writeback register dummy placeholder.
|
|
Inst.addOperand(MCOperand::CreateImm(0));
|
|
// Rt, Rt2
|
|
((ARMOperand*)Operands[2])->addRegOperands(Inst, 1);
|
|
((ARMOperand*)Operands[3])->addRegOperands(Inst, 1);
|
|
// addr
|
|
((ARMOperand*)Operands[4])->addAddrMode3Operands(Inst, 3);
|
|
// pred
|
|
((ARMOperand*)Operands[1])->addCondCodeOperands(Inst, 2);
|
|
}
|
|
|
|
/// cvtLdWriteBackRegAddrMode3 - Convert parsed operands to MCInst.
|
|
/// Needed here because the Asm Gen Matcher can't handle properly tied operands
|
|
/// when they refer multiple MIOperands inside a single one.
|
|
void ARMAsmParser::
|
|
cvtLdWriteBackRegAddrMode3(MCInst &Inst,
|
|
const SmallVectorImpl<MCParsedAsmOperand*> &Operands) {
|
|
((ARMOperand*)Operands[2])->addRegOperands(Inst, 1);
|
|
// Create a writeback register dummy placeholder.
|
|
Inst.addOperand(MCOperand::CreateImm(0));
|
|
((ARMOperand*)Operands[3])->addAddrMode3Operands(Inst, 3);
|
|
((ARMOperand*)Operands[1])->addCondCodeOperands(Inst, 2);
|
|
}
|
|
|
|
/// cvtThumbMultiply - Convert parsed operands to MCInst.
|
|
/// Needed here because the Asm Gen Matcher can't handle properly tied operands
|
|
/// when they refer multiple MIOperands inside a single one.
|
|
void ARMAsmParser::
|
|
cvtThumbMultiply(MCInst &Inst,
|
|
const SmallVectorImpl<MCParsedAsmOperand*> &Operands) {
|
|
((ARMOperand*)Operands[3])->addRegOperands(Inst, 1);
|
|
((ARMOperand*)Operands[1])->addCCOutOperands(Inst, 1);
|
|
// If we have a three-operand form, make sure to set Rn to be the operand
|
|
// that isn't the same as Rd.
|
|
unsigned RegOp = 4;
|
|
if (Operands.size() == 6 &&
|
|
((ARMOperand*)Operands[4])->getReg() ==
|
|
((ARMOperand*)Operands[3])->getReg())
|
|
RegOp = 5;
|
|
((ARMOperand*)Operands[RegOp])->addRegOperands(Inst, 1);
|
|
Inst.addOperand(Inst.getOperand(0));
|
|
((ARMOperand*)Operands[2])->addCondCodeOperands(Inst, 2);
|
|
}
|
|
|
|
void ARMAsmParser::
|
|
cvtVLDwbFixed(MCInst &Inst,
|
|
const SmallVectorImpl<MCParsedAsmOperand*> &Operands) {
|
|
// Vd
|
|
((ARMOperand*)Operands[3])->addVecListOperands(Inst, 1);
|
|
// Create a writeback register dummy placeholder.
|
|
Inst.addOperand(MCOperand::CreateImm(0));
|
|
// Vn
|
|
((ARMOperand*)Operands[4])->addAlignedMemoryOperands(Inst, 2);
|
|
// pred
|
|
((ARMOperand*)Operands[1])->addCondCodeOperands(Inst, 2);
|
|
}
|
|
|
|
void ARMAsmParser::
|
|
cvtVLDwbRegister(MCInst &Inst,
|
|
const SmallVectorImpl<MCParsedAsmOperand*> &Operands) {
|
|
// Vd
|
|
((ARMOperand*)Operands[3])->addVecListOperands(Inst, 1);
|
|
// Create a writeback register dummy placeholder.
|
|
Inst.addOperand(MCOperand::CreateImm(0));
|
|
// Vn
|
|
((ARMOperand*)Operands[4])->addAlignedMemoryOperands(Inst, 2);
|
|
// Vm
|
|
((ARMOperand*)Operands[5])->addRegOperands(Inst, 1);
|
|
// pred
|
|
((ARMOperand*)Operands[1])->addCondCodeOperands(Inst, 2);
|
|
}
|
|
|
|
void ARMAsmParser::
|
|
cvtVSTwbFixed(MCInst &Inst,
|
|
const SmallVectorImpl<MCParsedAsmOperand*> &Operands) {
|
|
// Create a writeback register dummy placeholder.
|
|
Inst.addOperand(MCOperand::CreateImm(0));
|
|
// Vn
|
|
((ARMOperand*)Operands[4])->addAlignedMemoryOperands(Inst, 2);
|
|
// Vt
|
|
((ARMOperand*)Operands[3])->addVecListOperands(Inst, 1);
|
|
// pred
|
|
((ARMOperand*)Operands[1])->addCondCodeOperands(Inst, 2);
|
|
}
|
|
|
|
void ARMAsmParser::
|
|
cvtVSTwbRegister(MCInst &Inst,
|
|
const SmallVectorImpl<MCParsedAsmOperand*> &Operands) {
|
|
// Create a writeback register dummy placeholder.
|
|
Inst.addOperand(MCOperand::CreateImm(0));
|
|
// Vn
|
|
((ARMOperand*)Operands[4])->addAlignedMemoryOperands(Inst, 2);
|
|
// Vm
|
|
((ARMOperand*)Operands[5])->addRegOperands(Inst, 1);
|
|
// Vt
|
|
((ARMOperand*)Operands[3])->addVecListOperands(Inst, 1);
|
|
// pred
|
|
((ARMOperand*)Operands[1])->addCondCodeOperands(Inst, 2);
|
|
}
|
|
|
|
/// Parse an ARM memory expression, return false if successful else return true
|
|
/// or an error. The first token must be a '[' when called.
|
|
bool ARMAsmParser::
|
|
parseMemory(SmallVectorImpl<MCParsedAsmOperand*> &Operands) {
|
|
SMLoc S, E;
|
|
assert(Parser.getTok().is(AsmToken::LBrac) &&
|
|
"Token is not a Left Bracket");
|
|
S = Parser.getTok().getLoc();
|
|
Parser.Lex(); // Eat left bracket token.
|
|
|
|
const AsmToken &BaseRegTok = Parser.getTok();
|
|
int BaseRegNum = tryParseRegister();
|
|
if (BaseRegNum == -1)
|
|
return Error(BaseRegTok.getLoc(), "register expected");
|
|
|
|
// The next token must either be a comma or a closing bracket.
|
|
const AsmToken &Tok = Parser.getTok();
|
|
if (!Tok.is(AsmToken::Comma) && !Tok.is(AsmToken::RBrac))
|
|
return Error(Tok.getLoc(), "malformed memory operand");
|
|
|
|
if (Tok.is(AsmToken::RBrac)) {
|
|
E = Tok.getLoc();
|
|
Parser.Lex(); // Eat right bracket token.
|
|
|
|
Operands.push_back(ARMOperand::CreateMem(BaseRegNum, 0, 0, ARM_AM::no_shift,
|
|
0, 0, false, S, E));
|
|
|
|
// If there's a pre-indexing writeback marker, '!', just add it as a token
|
|
// operand. It's rather odd, but syntactically valid.
|
|
if (Parser.getTok().is(AsmToken::Exclaim)) {
|
|
Operands.push_back(ARMOperand::CreateToken("!",Parser.getTok().getLoc()));
|
|
Parser.Lex(); // Eat the '!'.
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
assert(Tok.is(AsmToken::Comma) && "Lost comma in memory operand?!");
|
|
Parser.Lex(); // Eat the comma.
|
|
|
|
// If we have a ':', it's an alignment specifier.
|
|
if (Parser.getTok().is(AsmToken::Colon)) {
|
|
Parser.Lex(); // Eat the ':'.
|
|
E = Parser.getTok().getLoc();
|
|
|
|
const MCExpr *Expr;
|
|
if (getParser().ParseExpression(Expr))
|
|
return true;
|
|
|
|
// The expression has to be a constant. Memory references with relocations
|
|
// don't come through here, as they use the <label> forms of the relevant
|
|
// instructions.
|
|
const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(Expr);
|
|
if (!CE)
|
|
return Error (E, "constant expression expected");
|
|
|
|
unsigned Align = 0;
|
|
switch (CE->getValue()) {
|
|
default:
|
|
return Error(E,
|
|
"alignment specifier must be 16, 32, 64, 128, or 256 bits");
|
|
case 16: Align = 2; break;
|
|
case 32: Align = 4; break;
|
|
case 64: Align = 8; break;
|
|
case 128: Align = 16; break;
|
|
case 256: Align = 32; break;
|
|
}
|
|
|
|
// Now we should have the closing ']'
|
|
E = Parser.getTok().getLoc();
|
|
if (Parser.getTok().isNot(AsmToken::RBrac))
|
|
return Error(E, "']' expected");
|
|
Parser.Lex(); // Eat right bracket token.
|
|
|
|
// Don't worry about range checking the value here. That's handled by
|
|
// the is*() predicates.
|
|
Operands.push_back(ARMOperand::CreateMem(BaseRegNum, 0, 0,
|
|
ARM_AM::no_shift, 0, Align,
|
|
false, S, E));
|
|
|
|
// If there's a pre-indexing writeback marker, '!', just add it as a token
|
|
// operand.
|
|
if (Parser.getTok().is(AsmToken::Exclaim)) {
|
|
Operands.push_back(ARMOperand::CreateToken("!",Parser.getTok().getLoc()));
|
|
Parser.Lex(); // Eat the '!'.
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
// If we have a '#', it's an immediate offset, else assume it's a register
|
|
// offset. Be friendly and also accept a plain integer (without a leading
|
|
// hash) for gas compatibility.
|
|
if (Parser.getTok().is(AsmToken::Hash) ||
|
|
Parser.getTok().is(AsmToken::Dollar) ||
|
|
Parser.getTok().is(AsmToken::Integer)) {
|
|
if (Parser.getTok().isNot(AsmToken::Integer))
|
|
Parser.Lex(); // Eat the '#'.
|
|
E = Parser.getTok().getLoc();
|
|
|
|
bool isNegative = getParser().getTok().is(AsmToken::Minus);
|
|
const MCExpr *Offset;
|
|
if (getParser().ParseExpression(Offset))
|
|
return true;
|
|
|
|
// The expression has to be a constant. Memory references with relocations
|
|
// don't come through here, as they use the <label> forms of the relevant
|
|
// instructions.
|
|
const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(Offset);
|
|
if (!CE)
|
|
return Error (E, "constant expression expected");
|
|
|
|
// If the constant was #-0, represent it as INT32_MIN.
|
|
int32_t Val = CE->getValue();
|
|
if (isNegative && Val == 0)
|
|
CE = MCConstantExpr::Create(INT32_MIN, getContext());
|
|
|
|
// Now we should have the closing ']'
|
|
E = Parser.getTok().getLoc();
|
|
if (Parser.getTok().isNot(AsmToken::RBrac))
|
|
return Error(E, "']' expected");
|
|
Parser.Lex(); // Eat right bracket token.
|
|
|
|
// Don't worry about range checking the value here. That's handled by
|
|
// the is*() predicates.
|
|
Operands.push_back(ARMOperand::CreateMem(BaseRegNum, CE, 0,
|
|
ARM_AM::no_shift, 0, 0,
|
|
false, S, E));
|
|
|
|
// If there's a pre-indexing writeback marker, '!', just add it as a token
|
|
// operand.
|
|
if (Parser.getTok().is(AsmToken::Exclaim)) {
|
|
Operands.push_back(ARMOperand::CreateToken("!",Parser.getTok().getLoc()));
|
|
Parser.Lex(); // Eat the '!'.
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
// The register offset is optionally preceded by a '+' or '-'
|
|
bool isNegative = false;
|
|
if (Parser.getTok().is(AsmToken::Minus)) {
|
|
isNegative = true;
|
|
Parser.Lex(); // Eat the '-'.
|
|
} else if (Parser.getTok().is(AsmToken::Plus)) {
|
|
// Nothing to do.
|
|
Parser.Lex(); // Eat the '+'.
|
|
}
|
|
|
|
E = Parser.getTok().getLoc();
|
|
int OffsetRegNum = tryParseRegister();
|
|
if (OffsetRegNum == -1)
|
|
return Error(E, "register expected");
|
|
|
|
// If there's a shift operator, handle it.
|
|
ARM_AM::ShiftOpc ShiftType = ARM_AM::no_shift;
|
|
unsigned ShiftImm = 0;
|
|
if (Parser.getTok().is(AsmToken::Comma)) {
|
|
Parser.Lex(); // Eat the ','.
|
|
if (parseMemRegOffsetShift(ShiftType, ShiftImm))
|
|
return true;
|
|
}
|
|
|
|
// Now we should have the closing ']'
|
|
E = Parser.getTok().getLoc();
|
|
if (Parser.getTok().isNot(AsmToken::RBrac))
|
|
return Error(E, "']' expected");
|
|
Parser.Lex(); // Eat right bracket token.
|
|
|
|
Operands.push_back(ARMOperand::CreateMem(BaseRegNum, 0, OffsetRegNum,
|
|
ShiftType, ShiftImm, 0, isNegative,
|
|
S, E));
|
|
|
|
// If there's a pre-indexing writeback marker, '!', just add it as a token
|
|
// operand.
|
|
if (Parser.getTok().is(AsmToken::Exclaim)) {
|
|
Operands.push_back(ARMOperand::CreateToken("!",Parser.getTok().getLoc()));
|
|
Parser.Lex(); // Eat the '!'.
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
/// parseMemRegOffsetShift - one of these two:
|
|
/// ( lsl | lsr | asr | ror ) , # shift_amount
|
|
/// rrx
|
|
/// return true if it parses a shift otherwise it returns false.
|
|
bool ARMAsmParser::parseMemRegOffsetShift(ARM_AM::ShiftOpc &St,
|
|
unsigned &Amount) {
|
|
SMLoc Loc = Parser.getTok().getLoc();
|
|
const AsmToken &Tok = Parser.getTok();
|
|
if (Tok.isNot(AsmToken::Identifier))
|
|
return true;
|
|
StringRef ShiftName = Tok.getString();
|
|
if (ShiftName == "lsl" || ShiftName == "LSL" ||
|
|
ShiftName == "asl" || ShiftName == "ASL")
|
|
St = ARM_AM::lsl;
|
|
else if (ShiftName == "lsr" || ShiftName == "LSR")
|
|
St = ARM_AM::lsr;
|
|
else if (ShiftName == "asr" || ShiftName == "ASR")
|
|
St = ARM_AM::asr;
|
|
else if (ShiftName == "ror" || ShiftName == "ROR")
|
|
St = ARM_AM::ror;
|
|
else if (ShiftName == "rrx" || ShiftName == "RRX")
|
|
St = ARM_AM::rrx;
|
|
else
|
|
return Error(Loc, "illegal shift operator");
|
|
Parser.Lex(); // Eat shift type token.
|
|
|
|
// rrx stands alone.
|
|
Amount = 0;
|
|
if (St != ARM_AM::rrx) {
|
|
Loc = Parser.getTok().getLoc();
|
|
// A '#' and a shift amount.
|
|
const AsmToken &HashTok = Parser.getTok();
|
|
if (HashTok.isNot(AsmToken::Hash) &&
|
|
HashTok.isNot(AsmToken::Dollar))
|
|
return Error(HashTok.getLoc(), "'#' expected");
|
|
Parser.Lex(); // Eat hash token.
|
|
|
|
const MCExpr *Expr;
|
|
if (getParser().ParseExpression(Expr))
|
|
return true;
|
|
// Range check the immediate.
|
|
// lsl, ror: 0 <= imm <= 31
|
|
// lsr, asr: 0 <= imm <= 32
|
|
const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(Expr);
|
|
if (!CE)
|
|
return Error(Loc, "shift amount must be an immediate");
|
|
int64_t Imm = CE->getValue();
|
|
if (Imm < 0 ||
|
|
((St == ARM_AM::lsl || St == ARM_AM::ror) && Imm > 31) ||
|
|
((St == ARM_AM::lsr || St == ARM_AM::asr) && Imm > 32))
|
|
return Error(Loc, "immediate shift value out of range");
|
|
// If <ShiftTy> #0, turn it into a no_shift.
|
|
if (Imm == 0)
|
|
St = ARM_AM::lsl;
|
|
// For consistency, treat lsr #32 and asr #32 as having immediate value 0.
|
|
if (Imm == 32)
|
|
Imm = 0;
|
|
Amount = Imm;
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
/// parseFPImm - A floating point immediate expression operand.
|
|
ARMAsmParser::OperandMatchResultTy ARMAsmParser::
|
|
parseFPImm(SmallVectorImpl<MCParsedAsmOperand*> &Operands) {
|
|
// Anything that can accept a floating point constant as an operand
|
|
// needs to go through here, as the regular ParseExpression is
|
|
// integer only.
|
|
//
|
|
// This routine still creates a generic Immediate operand, containing
|
|
// a bitcast of the 64-bit floating point value. The various operands
|
|
// that accept floats can check whether the value is valid for them
|
|
// via the standard is*() predicates.
|
|
|
|
SMLoc S = Parser.getTok().getLoc();
|
|
|
|
if (Parser.getTok().isNot(AsmToken::Hash) &&
|
|
Parser.getTok().isNot(AsmToken::Dollar))
|
|
return MatchOperand_NoMatch;
|
|
|
|
// Disambiguate the VMOV forms that can accept an FP immediate.
|
|
// vmov.f32 <sreg>, #imm
|
|
// vmov.f64 <dreg>, #imm
|
|
// vmov.f32 <dreg>, #imm @ vector f32x2
|
|
// vmov.f32 <qreg>, #imm @ vector f32x4
|
|
//
|
|
// There are also the NEON VMOV instructions which expect an
|
|
// integer constant. Make sure we don't try to parse an FPImm
|
|
// for these:
|
|
// vmov.i{8|16|32|64} <dreg|qreg>, #imm
|
|
ARMOperand *TyOp = static_cast<ARMOperand*>(Operands[2]);
|
|
if (!TyOp->isToken() || (TyOp->getToken() != ".f32" &&
|
|
TyOp->getToken() != ".f64"))
|
|
return MatchOperand_NoMatch;
|
|
|
|
Parser.Lex(); // Eat the '#'.
|
|
|
|
// Handle negation, as that still comes through as a separate token.
|
|
bool isNegative = false;
|
|
if (Parser.getTok().is(AsmToken::Minus)) {
|
|
isNegative = true;
|
|
Parser.Lex();
|
|
}
|
|
const AsmToken &Tok = Parser.getTok();
|
|
SMLoc Loc = Tok.getLoc();
|
|
if (Tok.is(AsmToken::Real)) {
|
|
APFloat RealVal(APFloat::IEEEsingle, Tok.getString());
|
|
uint64_t IntVal = RealVal.bitcastToAPInt().getZExtValue();
|
|
// If we had a '-' in front, toggle the sign bit.
|
|
IntVal ^= (uint64_t)isNegative << 31;
|
|
Parser.Lex(); // Eat the token.
|
|
Operands.push_back(ARMOperand::CreateImm(
|
|
MCConstantExpr::Create(IntVal, getContext()),
|
|
S, Parser.getTok().getLoc()));
|
|
return MatchOperand_Success;
|
|
}
|
|
// Also handle plain integers. Instructions which allow floating point
|
|
// immediates also allow a raw encoded 8-bit value.
|
|
if (Tok.is(AsmToken::Integer)) {
|
|
int64_t Val = Tok.getIntVal();
|
|
Parser.Lex(); // Eat the token.
|
|
if (Val > 255 || Val < 0) {
|
|
Error(Loc, "encoded floating point value out of range");
|
|
return MatchOperand_ParseFail;
|
|
}
|
|
double RealVal = ARM_AM::getFPImmFloat(Val);
|
|
Val = APFloat(APFloat::IEEEdouble, RealVal).bitcastToAPInt().getZExtValue();
|
|
Operands.push_back(ARMOperand::CreateImm(
|
|
MCConstantExpr::Create(Val, getContext()), S,
|
|
Parser.getTok().getLoc()));
|
|
return MatchOperand_Success;
|
|
}
|
|
|
|
Error(Loc, "invalid floating point immediate");
|
|
return MatchOperand_ParseFail;
|
|
}
|
|
|
|
/// Parse a arm instruction operand. For now this parses the operand regardless
|
|
/// of the mnemonic.
|
|
bool ARMAsmParser::parseOperand(SmallVectorImpl<MCParsedAsmOperand*> &Operands,
|
|
StringRef Mnemonic) {
|
|
SMLoc S, E;
|
|
|
|
// Check if the current operand has a custom associated parser, if so, try to
|
|
// custom parse the operand, or fallback to the general approach.
|
|
OperandMatchResultTy ResTy = MatchOperandParserImpl(Operands, Mnemonic);
|
|
if (ResTy == MatchOperand_Success)
|
|
return false;
|
|
// If there wasn't a custom match, try the generic matcher below. Otherwise,
|
|
// there was a match, but an error occurred, in which case, just return that
|
|
// the operand parsing failed.
|
|
if (ResTy == MatchOperand_ParseFail)
|
|
return true;
|
|
|
|
switch (getLexer().getKind()) {
|
|
default:
|
|
Error(Parser.getTok().getLoc(), "unexpected token in operand");
|
|
return true;
|
|
case AsmToken::Identifier: {
|
|
if (!tryParseRegisterWithWriteBack(Operands))
|
|
return false;
|
|
int Res = tryParseShiftRegister(Operands);
|
|
if (Res == 0) // success
|
|
return false;
|
|
else if (Res == -1) // irrecoverable error
|
|
return true;
|
|
// If this is VMRS, check for the apsr_nzcv operand.
|
|
if (Mnemonic == "vmrs" &&
|
|
Parser.getTok().getString().equals_lower("apsr_nzcv")) {
|
|
S = Parser.getTok().getLoc();
|
|
Parser.Lex();
|
|
Operands.push_back(ARMOperand::CreateToken("APSR_nzcv", S));
|
|
return false;
|
|
}
|
|
|
|
// Fall though for the Identifier case that is not a register or a
|
|
// special name.
|
|
}
|
|
case AsmToken::LParen: // parenthesized expressions like (_strcmp-4)
|
|
case AsmToken::Integer: // things like 1f and 2b as a branch targets
|
|
case AsmToken::String: // quoted label names.
|
|
case AsmToken::Dot: { // . as a branch target
|
|
// This was not a register so parse other operands that start with an
|
|
// identifier (like labels) as expressions and create them as immediates.
|
|
const MCExpr *IdVal;
|
|
S = Parser.getTok().getLoc();
|
|
if (getParser().ParseExpression(IdVal))
|
|
return true;
|
|
E = SMLoc::getFromPointer(Parser.getTok().getLoc().getPointer() - 1);
|
|
Operands.push_back(ARMOperand::CreateImm(IdVal, S, E));
|
|
return false;
|
|
}
|
|
case AsmToken::LBrac:
|
|
return parseMemory(Operands);
|
|
case AsmToken::LCurly:
|
|
return parseRegisterList(Operands);
|
|
case AsmToken::Dollar:
|
|
case AsmToken::Hash: {
|
|
// #42 -> immediate.
|
|
S = Parser.getTok().getLoc();
|
|
Parser.Lex();
|
|
|
|
if (Parser.getTok().isNot(AsmToken::Colon)) {
|
|
bool isNegative = Parser.getTok().is(AsmToken::Minus);
|
|
const MCExpr *ImmVal;
|
|
if (getParser().ParseExpression(ImmVal))
|
|
return true;
|
|
const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(ImmVal);
|
|
if (CE) {
|
|
int32_t Val = CE->getValue();
|
|
if (isNegative && Val == 0)
|
|
ImmVal = MCConstantExpr::Create(INT32_MIN, getContext());
|
|
}
|
|
E = SMLoc::getFromPointer(Parser.getTok().getLoc().getPointer() - 1);
|
|
Operands.push_back(ARMOperand::CreateImm(ImmVal, S, E));
|
|
return false;
|
|
}
|
|
// w/ a ':' after the '#', it's just like a plain ':'.
|
|
// FALLTHROUGH
|
|
}
|
|
case AsmToken::Colon: {
|
|
// ":lower16:" and ":upper16:" expression prefixes
|
|
// FIXME: Check it's an expression prefix,
|
|
// e.g. (FOO - :lower16:BAR) isn't legal.
|
|
ARMMCExpr::VariantKind RefKind;
|
|
if (parsePrefix(RefKind))
|
|
return true;
|
|
|
|
const MCExpr *SubExprVal;
|
|
if (getParser().ParseExpression(SubExprVal))
|
|
return true;
|
|
|
|
const MCExpr *ExprVal = ARMMCExpr::Create(RefKind, SubExprVal,
|
|
getContext());
|
|
E = SMLoc::getFromPointer(Parser.getTok().getLoc().getPointer() - 1);
|
|
Operands.push_back(ARMOperand::CreateImm(ExprVal, S, E));
|
|
return false;
|
|
}
|
|
}
|
|
}
|
|
|
|
// parsePrefix - Parse ARM 16-bit relocations expression prefix, i.e.
|
|
// :lower16: and :upper16:.
|
|
bool ARMAsmParser::parsePrefix(ARMMCExpr::VariantKind &RefKind) {
|
|
RefKind = ARMMCExpr::VK_ARM_None;
|
|
|
|
// :lower16: and :upper16: modifiers
|
|
assert(getLexer().is(AsmToken::Colon) && "expected a :");
|
|
Parser.Lex(); // Eat ':'
|
|
|
|
if (getLexer().isNot(AsmToken::Identifier)) {
|
|
Error(Parser.getTok().getLoc(), "expected prefix identifier in operand");
|
|
return true;
|
|
}
|
|
|
|
StringRef IDVal = Parser.getTok().getIdentifier();
|
|
if (IDVal == "lower16") {
|
|
RefKind = ARMMCExpr::VK_ARM_LO16;
|
|
} else if (IDVal == "upper16") {
|
|
RefKind = ARMMCExpr::VK_ARM_HI16;
|
|
} else {
|
|
Error(Parser.getTok().getLoc(), "unexpected prefix in operand");
|
|
return true;
|
|
}
|
|
Parser.Lex();
|
|
|
|
if (getLexer().isNot(AsmToken::Colon)) {
|
|
Error(Parser.getTok().getLoc(), "unexpected token after prefix");
|
|
return true;
|
|
}
|
|
Parser.Lex(); // Eat the last ':'
|
|
return false;
|
|
}
|
|
|
|
/// \brief Given a mnemonic, split out possible predication code and carry
|
|
/// setting letters to form a canonical mnemonic and flags.
|
|
//
|
|
// FIXME: Would be nice to autogen this.
|
|
// FIXME: This is a bit of a maze of special cases.
|
|
StringRef ARMAsmParser::splitMnemonic(StringRef Mnemonic,
|
|
unsigned &PredicationCode,
|
|
bool &CarrySetting,
|
|
unsigned &ProcessorIMod,
|
|
StringRef &ITMask) {
|
|
PredicationCode = ARMCC::AL;
|
|
CarrySetting = false;
|
|
ProcessorIMod = 0;
|
|
|
|
// Ignore some mnemonics we know aren't predicated forms.
|
|
//
|
|
// FIXME: Would be nice to autogen this.
|
|
if ((Mnemonic == "movs" && isThumb()) ||
|
|
Mnemonic == "teq" || Mnemonic == "vceq" || Mnemonic == "svc" ||
|
|
Mnemonic == "mls" || Mnemonic == "smmls" || Mnemonic == "vcls" ||
|
|
Mnemonic == "vmls" || Mnemonic == "vnmls" || Mnemonic == "vacge" ||
|
|
Mnemonic == "vcge" || Mnemonic == "vclt" || Mnemonic == "vacgt" ||
|
|
Mnemonic == "vcgt" || Mnemonic == "vcle" || Mnemonic == "smlal" ||
|
|
Mnemonic == "umaal" || Mnemonic == "umlal" || Mnemonic == "vabal" ||
|
|
Mnemonic == "vmlal" || Mnemonic == "vpadal" || Mnemonic == "vqdmlal" ||
|
|
Mnemonic == "fmuls")
|
|
return Mnemonic;
|
|
|
|
// First, split out any predication code. Ignore mnemonics we know aren't
|
|
// predicated but do have a carry-set and so weren't caught above.
|
|
if (Mnemonic != "adcs" && Mnemonic != "bics" && Mnemonic != "movs" &&
|
|
Mnemonic != "muls" && Mnemonic != "smlals" && Mnemonic != "smulls" &&
|
|
Mnemonic != "umlals" && Mnemonic != "umulls" && Mnemonic != "lsls" &&
|
|
Mnemonic != "sbcs" && Mnemonic != "rscs") {
|
|
unsigned CC = StringSwitch<unsigned>(Mnemonic.substr(Mnemonic.size()-2))
|
|
.Case("eq", ARMCC::EQ)
|
|
.Case("ne", ARMCC::NE)
|
|
.Case("hs", ARMCC::HS)
|
|
.Case("cs", ARMCC::HS)
|
|
.Case("lo", ARMCC::LO)
|
|
.Case("cc", ARMCC::LO)
|
|
.Case("mi", ARMCC::MI)
|
|
.Case("pl", ARMCC::PL)
|
|
.Case("vs", ARMCC::VS)
|
|
.Case("vc", ARMCC::VC)
|
|
.Case("hi", ARMCC::HI)
|
|
.Case("ls", ARMCC::LS)
|
|
.Case("ge", ARMCC::GE)
|
|
.Case("lt", ARMCC::LT)
|
|
.Case("gt", ARMCC::GT)
|
|
.Case("le", ARMCC::LE)
|
|
.Case("al", ARMCC::AL)
|
|
.Default(~0U);
|
|
if (CC != ~0U) {
|
|
Mnemonic = Mnemonic.slice(0, Mnemonic.size() - 2);
|
|
PredicationCode = CC;
|
|
}
|
|
}
|
|
|
|
// Next, determine if we have a carry setting bit. We explicitly ignore all
|
|
// the instructions we know end in 's'.
|
|
if (Mnemonic.endswith("s") &&
|
|
!(Mnemonic == "cps" || Mnemonic == "mls" ||
|
|
Mnemonic == "mrs" || Mnemonic == "smmls" || Mnemonic == "vabs" ||
|
|
Mnemonic == "vcls" || Mnemonic == "vmls" || Mnemonic == "vmrs" ||
|
|
Mnemonic == "vnmls" || Mnemonic == "vqabs" || Mnemonic == "vrecps" ||
|
|
Mnemonic == "vrsqrts" || Mnemonic == "srs" || Mnemonic == "flds" ||
|
|
Mnemonic == "fmrs" || Mnemonic == "fsqrts" || Mnemonic == "fsubs" ||
|
|
Mnemonic == "fsts" || Mnemonic == "fcpys" || Mnemonic == "fdivs" ||
|
|
Mnemonic == "fmuls" || Mnemonic == "fcmps" || Mnemonic == "fcmpzs" ||
|
|
Mnemonic == "vfms" || Mnemonic == "vfnms" ||
|
|
(Mnemonic == "movs" && isThumb()))) {
|
|
Mnemonic = Mnemonic.slice(0, Mnemonic.size() - 1);
|
|
CarrySetting = true;
|
|
}
|
|
|
|
// The "cps" instruction can have a interrupt mode operand which is glued into
|
|
// the mnemonic. Check if this is the case, split it and parse the imod op
|
|
if (Mnemonic.startswith("cps")) {
|
|
// Split out any imod code.
|
|
unsigned IMod =
|
|
StringSwitch<unsigned>(Mnemonic.substr(Mnemonic.size()-2, 2))
|
|
.Case("ie", ARM_PROC::IE)
|
|
.Case("id", ARM_PROC::ID)
|
|
.Default(~0U);
|
|
if (IMod != ~0U) {
|
|
Mnemonic = Mnemonic.slice(0, Mnemonic.size()-2);
|
|
ProcessorIMod = IMod;
|
|
}
|
|
}
|
|
|
|
// The "it" instruction has the condition mask on the end of the mnemonic.
|
|
if (Mnemonic.startswith("it")) {
|
|
ITMask = Mnemonic.slice(2, Mnemonic.size());
|
|
Mnemonic = Mnemonic.slice(0, 2);
|
|
}
|
|
|
|
return Mnemonic;
|
|
}
|
|
|
|
/// \brief Given a canonical mnemonic, determine if the instruction ever allows
|
|
/// inclusion of carry set or predication code operands.
|
|
//
|
|
// FIXME: It would be nice to autogen this.
|
|
void ARMAsmParser::
|
|
getMnemonicAcceptInfo(StringRef Mnemonic, bool &CanAcceptCarrySet,
|
|
bool &CanAcceptPredicationCode) {
|
|
if (Mnemonic == "and" || Mnemonic == "lsl" || Mnemonic == "lsr" ||
|
|
Mnemonic == "rrx" || Mnemonic == "ror" || Mnemonic == "sub" ||
|
|
Mnemonic == "add" || Mnemonic == "adc" ||
|
|
Mnemonic == "mul" || Mnemonic == "bic" || Mnemonic == "asr" ||
|
|
Mnemonic == "orr" || Mnemonic == "mvn" ||
|
|
Mnemonic == "rsb" || Mnemonic == "rsc" || Mnemonic == "orn" ||
|
|
Mnemonic == "sbc" || Mnemonic == "eor" || Mnemonic == "neg" ||
|
|
Mnemonic == "vfm" || Mnemonic == "vfnm" ||
|
|
(!isThumb() && (Mnemonic == "smull" || Mnemonic == "mov" ||
|
|
Mnemonic == "mla" || Mnemonic == "smlal" ||
|
|
Mnemonic == "umlal" || Mnemonic == "umull"))) {
|
|
CanAcceptCarrySet = true;
|
|
} else
|
|
CanAcceptCarrySet = false;
|
|
|
|
if (Mnemonic == "cbnz" || Mnemonic == "setend" || Mnemonic == "dmb" ||
|
|
Mnemonic == "cps" || Mnemonic == "mcr2" || Mnemonic == "it" ||
|
|
Mnemonic == "mcrr2" || Mnemonic == "cbz" || Mnemonic == "cdp2" ||
|
|
Mnemonic == "trap" || Mnemonic == "mrc2" || Mnemonic == "mrrc2" ||
|
|
Mnemonic == "dsb" || Mnemonic == "isb" || Mnemonic == "setend" ||
|
|
(Mnemonic == "clrex" && !isThumb()) ||
|
|
(Mnemonic == "nop" && isThumbOne()) ||
|
|
((Mnemonic == "pld" || Mnemonic == "pli" || Mnemonic == "pldw" ||
|
|
Mnemonic == "ldc2" || Mnemonic == "ldc2l" ||
|
|
Mnemonic == "stc2" || Mnemonic == "stc2l") && !isThumb()) ||
|
|
((Mnemonic.startswith("rfe") || Mnemonic.startswith("srs")) &&
|
|
!isThumb()) ||
|
|
Mnemonic.startswith("cps") || (Mnemonic == "movs" && isThumbOne())) {
|
|
CanAcceptPredicationCode = false;
|
|
} else
|
|
CanAcceptPredicationCode = true;
|
|
|
|
if (isThumb()) {
|
|
if (Mnemonic == "bkpt" || Mnemonic == "mcr" || Mnemonic == "mcrr" ||
|
|
Mnemonic == "mrc" || Mnemonic == "mrrc" || Mnemonic == "cdp")
|
|
CanAcceptPredicationCode = false;
|
|
}
|
|
}
|
|
|
|
bool ARMAsmParser::shouldOmitCCOutOperand(StringRef Mnemonic,
|
|
SmallVectorImpl<MCParsedAsmOperand*> &Operands) {
|
|
// FIXME: This is all horribly hacky. We really need a better way to deal
|
|
// with optional operands like this in the matcher table.
|
|
|
|
// The 'mov' mnemonic is special. One variant has a cc_out operand, while
|
|
// another does not. Specifically, the MOVW instruction does not. So we
|
|
// special case it here and remove the defaulted (non-setting) cc_out
|
|
// operand if that's the instruction we're trying to match.
|
|
//
|
|
// We do this as post-processing of the explicit operands rather than just
|
|
// conditionally adding the cc_out in the first place because we need
|
|
// to check the type of the parsed immediate operand.
|
|
if (Mnemonic == "mov" && Operands.size() > 4 && !isThumb() &&
|
|
!static_cast<ARMOperand*>(Operands[4])->isARMSOImm() &&
|
|
static_cast<ARMOperand*>(Operands[4])->isImm0_65535Expr() &&
|
|
static_cast<ARMOperand*>(Operands[1])->getReg() == 0)
|
|
return true;
|
|
|
|
// Register-register 'add' for thumb does not have a cc_out operand
|
|
// when there are only two register operands.
|
|
if (isThumb() && Mnemonic == "add" && Operands.size() == 5 &&
|
|
static_cast<ARMOperand*>(Operands[3])->isReg() &&
|
|
static_cast<ARMOperand*>(Operands[4])->isReg() &&
|
|
static_cast<ARMOperand*>(Operands[1])->getReg() == 0)
|
|
return true;
|
|
// Register-register 'add' for thumb does not have a cc_out operand
|
|
// when it's an ADD Rdm, SP, {Rdm|#imm0_255} instruction. We do
|
|
// have to check the immediate range here since Thumb2 has a variant
|
|
// that can handle a different range and has a cc_out operand.
|
|
if (((isThumb() && Mnemonic == "add") ||
|
|
(isThumbTwo() && Mnemonic == "sub")) &&
|
|
Operands.size() == 6 &&
|
|
static_cast<ARMOperand*>(Operands[3])->isReg() &&
|
|
static_cast<ARMOperand*>(Operands[4])->isReg() &&
|
|
static_cast<ARMOperand*>(Operands[4])->getReg() == ARM::SP &&
|
|
static_cast<ARMOperand*>(Operands[1])->getReg() == 0 &&
|
|
((Mnemonic == "add" &&static_cast<ARMOperand*>(Operands[5])->isReg()) ||
|
|
static_cast<ARMOperand*>(Operands[5])->isImm0_1020s4()))
|
|
return true;
|
|
// For Thumb2, add/sub immediate does not have a cc_out operand for the
|
|
// imm0_4095 variant. That's the least-preferred variant when
|
|
// selecting via the generic "add" mnemonic, so to know that we
|
|
// should remove the cc_out operand, we have to explicitly check that
|
|
// it's not one of the other variants. Ugh.
|
|
if (isThumbTwo() && (Mnemonic == "add" || Mnemonic == "sub") &&
|
|
Operands.size() == 6 &&
|
|
static_cast<ARMOperand*>(Operands[3])->isReg() &&
|
|
static_cast<ARMOperand*>(Operands[4])->isReg() &&
|
|
static_cast<ARMOperand*>(Operands[5])->isImm()) {
|
|
// Nest conditions rather than one big 'if' statement for readability.
|
|
//
|
|
// If either register is a high reg, it's either one of the SP
|
|
// variants (handled above) or a 32-bit encoding, so we just
|
|
// check against T3. If the second register is the PC, this is an
|
|
// alternate form of ADR, which uses encoding T4, so check for that too.
|
|
if ((!isARMLowRegister(static_cast<ARMOperand*>(Operands[3])->getReg()) ||
|
|
!isARMLowRegister(static_cast<ARMOperand*>(Operands[4])->getReg())) &&
|
|
static_cast<ARMOperand*>(Operands[4])->getReg() != ARM::PC &&
|
|
static_cast<ARMOperand*>(Operands[5])->isT2SOImm())
|
|
return false;
|
|
// If both registers are low, we're in an IT block, and the immediate is
|
|
// in range, we should use encoding T1 instead, which has a cc_out.
|
|
if (inITBlock() &&
|
|
isARMLowRegister(static_cast<ARMOperand*>(Operands[3])->getReg()) &&
|
|
isARMLowRegister(static_cast<ARMOperand*>(Operands[4])->getReg()) &&
|
|
static_cast<ARMOperand*>(Operands[5])->isImm0_7())
|
|
return false;
|
|
|
|
// Otherwise, we use encoding T4, which does not have a cc_out
|
|
// operand.
|
|
return true;
|
|
}
|
|
|
|
// The thumb2 multiply instruction doesn't have a CCOut register, so
|
|
// if we have a "mul" mnemonic in Thumb mode, check if we'll be able to
|
|
// use the 16-bit encoding or not.
|
|
if (isThumbTwo() && Mnemonic == "mul" && Operands.size() == 6 &&
|
|
static_cast<ARMOperand*>(Operands[1])->getReg() == 0 &&
|
|
static_cast<ARMOperand*>(Operands[3])->isReg() &&
|
|
static_cast<ARMOperand*>(Operands[4])->isReg() &&
|
|
static_cast<ARMOperand*>(Operands[5])->isReg() &&
|
|
// If the registers aren't low regs, the destination reg isn't the
|
|
// same as one of the source regs, or the cc_out operand is zero
|
|
// outside of an IT block, we have to use the 32-bit encoding, so
|
|
// remove the cc_out operand.
|
|
(!isARMLowRegister(static_cast<ARMOperand*>(Operands[3])->getReg()) ||
|
|
!isARMLowRegister(static_cast<ARMOperand*>(Operands[4])->getReg()) ||
|
|
!isARMLowRegister(static_cast<ARMOperand*>(Operands[5])->getReg()) ||
|
|
!inITBlock() ||
|
|
(static_cast<ARMOperand*>(Operands[3])->getReg() !=
|
|
static_cast<ARMOperand*>(Operands[5])->getReg() &&
|
|
static_cast<ARMOperand*>(Operands[3])->getReg() !=
|
|
static_cast<ARMOperand*>(Operands[4])->getReg())))
|
|
return true;
|
|
|
|
// Also check the 'mul' syntax variant that doesn't specify an explicit
|
|
// destination register.
|
|
if (isThumbTwo() && Mnemonic == "mul" && Operands.size() == 5 &&
|
|
static_cast<ARMOperand*>(Operands[1])->getReg() == 0 &&
|
|
static_cast<ARMOperand*>(Operands[3])->isReg() &&
|
|
static_cast<ARMOperand*>(Operands[4])->isReg() &&
|
|
// If the registers aren't low regs or the cc_out operand is zero
|
|
// outside of an IT block, we have to use the 32-bit encoding, so
|
|
// remove the cc_out operand.
|
|
(!isARMLowRegister(static_cast<ARMOperand*>(Operands[3])->getReg()) ||
|
|
!isARMLowRegister(static_cast<ARMOperand*>(Operands[4])->getReg()) ||
|
|
!inITBlock()))
|
|
return true;
|
|
|
|
|
|
|
|
// Register-register 'add/sub' for thumb does not have a cc_out operand
|
|
// when it's an ADD/SUB SP, #imm. Be lenient on count since there's also
|
|
// the "add/sub SP, SP, #imm" version. If the follow-up operands aren't
|
|
// right, this will result in better diagnostics (which operand is off)
|
|
// anyway.
|
|
if (isThumb() && (Mnemonic == "add" || Mnemonic == "sub") &&
|
|
(Operands.size() == 5 || Operands.size() == 6) &&
|
|
static_cast<ARMOperand*>(Operands[3])->isReg() &&
|
|
static_cast<ARMOperand*>(Operands[3])->getReg() == ARM::SP &&
|
|
static_cast<ARMOperand*>(Operands[1])->getReg() == 0 &&
|
|
(static_cast<ARMOperand*>(Operands[4])->isImm() ||
|
|
(Operands.size() == 6 &&
|
|
static_cast<ARMOperand*>(Operands[5])->isImm())))
|
|
return true;
|
|
|
|
return false;
|
|
}
|
|
|
|
static bool isDataTypeToken(StringRef Tok) {
|
|
return Tok == ".8" || Tok == ".16" || Tok == ".32" || Tok == ".64" ||
|
|
Tok == ".i8" || Tok == ".i16" || Tok == ".i32" || Tok == ".i64" ||
|
|
Tok == ".u8" || Tok == ".u16" || Tok == ".u32" || Tok == ".u64" ||
|
|
Tok == ".s8" || Tok == ".s16" || Tok == ".s32" || Tok == ".s64" ||
|
|
Tok == ".p8" || Tok == ".p16" || Tok == ".f32" || Tok == ".f64" ||
|
|
Tok == ".f" || Tok == ".d";
|
|
}
|
|
|
|
// FIXME: This bit should probably be handled via an explicit match class
|
|
// in the .td files that matches the suffix instead of having it be
|
|
// a literal string token the way it is now.
|
|
static bool doesIgnoreDataTypeSuffix(StringRef Mnemonic, StringRef DT) {
|
|
return Mnemonic.startswith("vldm") || Mnemonic.startswith("vstm");
|
|
}
|
|
|
|
static void applyMnemonicAliases(StringRef &Mnemonic, unsigned Features);
|
|
/// Parse an arm instruction mnemonic followed by its operands.
|
|
bool ARMAsmParser::ParseInstruction(ParseInstructionInfo &Info, StringRef Name,
|
|
SMLoc NameLoc,
|
|
SmallVectorImpl<MCParsedAsmOperand*> &Operands) {
|
|
// Apply mnemonic aliases before doing anything else, as the destination
|
|
// mnemnonic may include suffices and we want to handle them normally.
|
|
// The generic tblgen'erated code does this later, at the start of
|
|
// MatchInstructionImpl(), but that's too late for aliases that include
|
|
// any sort of suffix.
|
|
unsigned AvailableFeatures = getAvailableFeatures();
|
|
applyMnemonicAliases(Name, AvailableFeatures);
|
|
|
|
// First check for the ARM-specific .req directive.
|
|
if (Parser.getTok().is(AsmToken::Identifier) &&
|
|
Parser.getTok().getIdentifier() == ".req") {
|
|
parseDirectiveReq(Name, NameLoc);
|
|
// We always return 'error' for this, as we're done with this
|
|
// statement and don't need to match the 'instruction."
|
|
return true;
|
|
}
|
|
|
|
// Create the leading tokens for the mnemonic, split by '.' characters.
|
|
size_t Start = 0, Next = Name.find('.');
|
|
StringRef Mnemonic = Name.slice(Start, Next);
|
|
|
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// Split out the predication code and carry setting flag from the mnemonic.
|
|
unsigned PredicationCode;
|
|
unsigned ProcessorIMod;
|
|
bool CarrySetting;
|
|
StringRef ITMask;
|
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Mnemonic = splitMnemonic(Mnemonic, PredicationCode, CarrySetting,
|
|
ProcessorIMod, ITMask);
|
|
|
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// In Thumb1, only the branch (B) instruction can be predicated.
|
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if (isThumbOne() && PredicationCode != ARMCC::AL && Mnemonic != "b") {
|
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Parser.EatToEndOfStatement();
|
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return Error(NameLoc, "conditional execution not supported in Thumb1");
|
|
}
|
|
|
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Operands.push_back(ARMOperand::CreateToken(Mnemonic, NameLoc));
|
|
|
|
// Handle the IT instruction ITMask. Convert it to a bitmask. This
|
|
// is the mask as it will be for the IT encoding if the conditional
|
|
// encoding has a '1' as it's bit0 (i.e. 't' ==> '1'). In the case
|
|
// where the conditional bit0 is zero, the instruction post-processing
|
|
// will adjust the mask accordingly.
|
|
if (Mnemonic == "it") {
|
|
SMLoc Loc = SMLoc::getFromPointer(NameLoc.getPointer() + 2);
|
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if (ITMask.size() > 3) {
|
|
Parser.EatToEndOfStatement();
|
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return Error(Loc, "too many conditions on IT instruction");
|
|
}
|
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unsigned Mask = 8;
|
|
for (unsigned i = ITMask.size(); i != 0; --i) {
|
|
char pos = ITMask[i - 1];
|
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if (pos != 't' && pos != 'e') {
|
|
Parser.EatToEndOfStatement();
|
|
return Error(Loc, "illegal IT block condition mask '" + ITMask + "'");
|
|
}
|
|
Mask >>= 1;
|
|
if (ITMask[i - 1] == 't')
|
|
Mask |= 8;
|
|
}
|
|
Operands.push_back(ARMOperand::CreateITMask(Mask, Loc));
|
|
}
|
|
|
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// FIXME: This is all a pretty gross hack. We should automatically handle
|
|
// optional operands like this via tblgen.
|
|
|
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// Next, add the CCOut and ConditionCode operands, if needed.
|
|
//
|
|
// For mnemonics which can ever incorporate a carry setting bit or predication
|
|
// code, our matching model involves us always generating CCOut and
|
|
// ConditionCode operands to match the mnemonic "as written" and then we let
|
|
// the matcher deal with finding the right instruction or generating an
|
|
// appropriate error.
|
|
bool CanAcceptCarrySet, CanAcceptPredicationCode;
|
|
getMnemonicAcceptInfo(Mnemonic, CanAcceptCarrySet, CanAcceptPredicationCode);
|
|
|
|
// If we had a carry-set on an instruction that can't do that, issue an
|
|
// error.
|
|
if (!CanAcceptCarrySet && CarrySetting) {
|
|
Parser.EatToEndOfStatement();
|
|
return Error(NameLoc, "instruction '" + Mnemonic +
|
|
"' can not set flags, but 's' suffix specified");
|
|
}
|
|
// If we had a predication code on an instruction that can't do that, issue an
|
|
// error.
|
|
if (!CanAcceptPredicationCode && PredicationCode != ARMCC::AL) {
|
|
Parser.EatToEndOfStatement();
|
|
return Error(NameLoc, "instruction '" + Mnemonic +
|
|
"' is not predicable, but condition code specified");
|
|
}
|
|
|
|
// Add the carry setting operand, if necessary.
|
|
if (CanAcceptCarrySet) {
|
|
SMLoc Loc = SMLoc::getFromPointer(NameLoc.getPointer() + Mnemonic.size());
|
|
Operands.push_back(ARMOperand::CreateCCOut(CarrySetting ? ARM::CPSR : 0,
|
|
Loc));
|
|
}
|
|
|
|
// Add the predication code operand, if necessary.
|
|
if (CanAcceptPredicationCode) {
|
|
SMLoc Loc = SMLoc::getFromPointer(NameLoc.getPointer() + Mnemonic.size() +
|
|
CarrySetting);
|
|
Operands.push_back(ARMOperand::CreateCondCode(
|
|
ARMCC::CondCodes(PredicationCode), Loc));
|
|
}
|
|
|
|
// Add the processor imod operand, if necessary.
|
|
if (ProcessorIMod) {
|
|
Operands.push_back(ARMOperand::CreateImm(
|
|
MCConstantExpr::Create(ProcessorIMod, getContext()),
|
|
NameLoc, NameLoc));
|
|
}
|
|
|
|
// Add the remaining tokens in the mnemonic.
|
|
while (Next != StringRef::npos) {
|
|
Start = Next;
|
|
Next = Name.find('.', Start + 1);
|
|
StringRef ExtraToken = Name.slice(Start, Next);
|
|
|
|
// Some NEON instructions have an optional datatype suffix that is
|
|
// completely ignored. Check for that.
|
|
if (isDataTypeToken(ExtraToken) &&
|
|
doesIgnoreDataTypeSuffix(Mnemonic, ExtraToken))
|
|
continue;
|
|
|
|
if (ExtraToken != ".n") {
|
|
SMLoc Loc = SMLoc::getFromPointer(NameLoc.getPointer() + Start);
|
|
Operands.push_back(ARMOperand::CreateToken(ExtraToken, Loc));
|
|
}
|
|
}
|
|
|
|
// Read the remaining operands.
|
|
if (getLexer().isNot(AsmToken::EndOfStatement)) {
|
|
// Read the first operand.
|
|
if (parseOperand(Operands, Mnemonic)) {
|
|
Parser.EatToEndOfStatement();
|
|
return true;
|
|
}
|
|
|
|
while (getLexer().is(AsmToken::Comma)) {
|
|
Parser.Lex(); // Eat the comma.
|
|
|
|
// Parse and remember the operand.
|
|
if (parseOperand(Operands, Mnemonic)) {
|
|
Parser.EatToEndOfStatement();
|
|
return true;
|
|
}
|
|
}
|
|
}
|
|
|
|
if (getLexer().isNot(AsmToken::EndOfStatement)) {
|
|
SMLoc Loc = getLexer().getLoc();
|
|
Parser.EatToEndOfStatement();
|
|
return Error(Loc, "unexpected token in argument list");
|
|
}
|
|
|
|
Parser.Lex(); // Consume the EndOfStatement
|
|
|
|
// Some instructions, mostly Thumb, have forms for the same mnemonic that
|
|
// do and don't have a cc_out optional-def operand. With some spot-checks
|
|
// of the operand list, we can figure out which variant we're trying to
|
|
// parse and adjust accordingly before actually matching. We shouldn't ever
|
|
// try to remove a cc_out operand that was explicitly set on the the
|
|
// mnemonic, of course (CarrySetting == true). Reason number #317 the
|
|
// table driven matcher doesn't fit well with the ARM instruction set.
|
|
if (!CarrySetting && shouldOmitCCOutOperand(Mnemonic, Operands)) {
|
|
ARMOperand *Op = static_cast<ARMOperand*>(Operands[1]);
|
|
Operands.erase(Operands.begin() + 1);
|
|
delete Op;
|
|
}
|
|
|
|
// ARM mode 'blx' need special handling, as the register operand version
|
|
// is predicable, but the label operand version is not. So, we can't rely
|
|
// on the Mnemonic based checking to correctly figure out when to put
|
|
// a k_CondCode operand in the list. If we're trying to match the label
|
|
// version, remove the k_CondCode operand here.
|
|
if (!isThumb() && Mnemonic == "blx" && Operands.size() == 3 &&
|
|
static_cast<ARMOperand*>(Operands[2])->isImm()) {
|
|
ARMOperand *Op = static_cast<ARMOperand*>(Operands[1]);
|
|
Operands.erase(Operands.begin() + 1);
|
|
delete Op;
|
|
}
|
|
|
|
// The vector-compare-to-zero instructions have a literal token "#0" at
|
|
// the end that comes to here as an immediate operand. Convert it to a
|
|
// token to play nicely with the matcher.
|
|
if ((Mnemonic == "vceq" || Mnemonic == "vcge" || Mnemonic == "vcgt" ||
|
|
Mnemonic == "vcle" || Mnemonic == "vclt") && Operands.size() == 6 &&
|
|
static_cast<ARMOperand*>(Operands[5])->isImm()) {
|
|
ARMOperand *Op = static_cast<ARMOperand*>(Operands[5]);
|
|
const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(Op->getImm());
|
|
if (CE && CE->getValue() == 0) {
|
|
Operands.erase(Operands.begin() + 5);
|
|
Operands.push_back(ARMOperand::CreateToken("#0", Op->getStartLoc()));
|
|
delete Op;
|
|
}
|
|
}
|
|
// VCMP{E} does the same thing, but with a different operand count.
|
|
if ((Mnemonic == "vcmp" || Mnemonic == "vcmpe") && Operands.size() == 5 &&
|
|
static_cast<ARMOperand*>(Operands[4])->isImm()) {
|
|
ARMOperand *Op = static_cast<ARMOperand*>(Operands[4]);
|
|
const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(Op->getImm());
|
|
if (CE && CE->getValue() == 0) {
|
|
Operands.erase(Operands.begin() + 4);
|
|
Operands.push_back(ARMOperand::CreateToken("#0", Op->getStartLoc()));
|
|
delete Op;
|
|
}
|
|
}
|
|
// Similarly, the Thumb1 "RSB" instruction has a literal "#0" on the
|
|
// end. Convert it to a token here. Take care not to convert those
|
|
// that should hit the Thumb2 encoding.
|
|
if (Mnemonic == "rsb" && isThumb() && Operands.size() == 6 &&
|
|
static_cast<ARMOperand*>(Operands[3])->isReg() &&
|
|
static_cast<ARMOperand*>(Operands[4])->isReg() &&
|
|
static_cast<ARMOperand*>(Operands[5])->isImm()) {
|
|
ARMOperand *Op = static_cast<ARMOperand*>(Operands[5]);
|
|
const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(Op->getImm());
|
|
if (CE && CE->getValue() == 0 &&
|
|
(isThumbOne() ||
|
|
// The cc_out operand matches the IT block.
|
|
((inITBlock() != CarrySetting) &&
|
|
// Neither register operand is a high register.
|
|
(isARMLowRegister(static_cast<ARMOperand*>(Operands[3])->getReg()) &&
|
|
isARMLowRegister(static_cast<ARMOperand*>(Operands[4])->getReg()))))){
|
|
Operands.erase(Operands.begin() + 5);
|
|
Operands.push_back(ARMOperand::CreateToken("#0", Op->getStartLoc()));
|
|
delete Op;
|
|
}
|
|
}
|
|
|
|
// Adjust operands of ldrexd/strexd to MCK_GPRPair.
|
|
// ldrexd/strexd require even/odd GPR pair. To enforce this constraint,
|
|
// a single GPRPair reg operand is used in the .td file to replace the two
|
|
// GPRs. However, when parsing from asm, the two GRPs cannot be automatically
|
|
// expressed as a GPRPair, so we have to manually merge them.
|
|
// FIXME: We would really like to be able to tablegen'erate this.
|
|
if (!isThumb() && Operands.size() > 4 &&
|
|
(Mnemonic == "ldrexd" || Mnemonic == "strexd")) {
|
|
bool isLoad = (Mnemonic == "ldrexd");
|
|
unsigned Idx = isLoad ? 2 : 3;
|
|
ARMOperand* Op1 = static_cast<ARMOperand*>(Operands[Idx]);
|
|
ARMOperand* Op2 = static_cast<ARMOperand*>(Operands[Idx+1]);
|
|
|
|
const MCRegisterClass& MRC = MRI->getRegClass(ARM::GPRRegClassID);
|
|
// Adjust only if Op1 and Op2 are GPRs.
|
|
if (Op1->isReg() && Op2->isReg() && MRC.contains(Op1->getReg()) &&
|
|
MRC.contains(Op2->getReg())) {
|
|
unsigned Reg1 = Op1->getReg();
|
|
unsigned Reg2 = Op2->getReg();
|
|
unsigned Rt = MRI->getEncodingValue(Reg1);
|
|
unsigned Rt2 = MRI->getEncodingValue(Reg2);
|
|
|
|
// Rt2 must be Rt + 1 and Rt must be even.
|
|
if (Rt + 1 != Rt2 || (Rt & 1)) {
|
|
Error(Op2->getStartLoc(), isLoad ?
|
|
"destination operands must be sequential" :
|
|
"source operands must be sequential");
|
|
return true;
|
|
}
|
|
unsigned NewReg = MRI->getMatchingSuperReg(Reg1, ARM::gsub_0,
|
|
&(MRI->getRegClass(ARM::GPRPairRegClassID)));
|
|
Operands.erase(Operands.begin() + Idx, Operands.begin() + Idx + 2);
|
|
Operands.insert(Operands.begin() + Idx, ARMOperand::CreateReg(
|
|
NewReg, Op1->getStartLoc(), Op2->getEndLoc()));
|
|
delete Op1;
|
|
delete Op2;
|
|
}
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
// Validate context-sensitive operand constraints.
|
|
|
|
// return 'true' if register list contains non-low GPR registers,
|
|
// 'false' otherwise. If Reg is in the register list or is HiReg, set
|
|
// 'containsReg' to true.
|
|
static bool checkLowRegisterList(MCInst Inst, unsigned OpNo, unsigned Reg,
|
|
unsigned HiReg, bool &containsReg) {
|
|
containsReg = false;
|
|
for (unsigned i = OpNo; i < Inst.getNumOperands(); ++i) {
|
|
unsigned OpReg = Inst.getOperand(i).getReg();
|
|
if (OpReg == Reg)
|
|
containsReg = true;
|
|
// Anything other than a low register isn't legal here.
|
|
if (!isARMLowRegister(OpReg) && (!HiReg || OpReg != HiReg))
|
|
return true;
|
|
}
|
|
return false;
|
|
}
|
|
|
|
// Check if the specified regisgter is in the register list of the inst,
|
|
// starting at the indicated operand number.
|
|
static bool listContainsReg(MCInst &Inst, unsigned OpNo, unsigned Reg) {
|
|
for (unsigned i = OpNo; i < Inst.getNumOperands(); ++i) {
|
|
unsigned OpReg = Inst.getOperand(i).getReg();
|
|
if (OpReg == Reg)
|
|
return true;
|
|
}
|
|
return false;
|
|
}
|
|
|
|
// FIXME: We would really prefer to have MCInstrInfo (the wrapper around
|
|
// the ARMInsts array) instead. Getting that here requires awkward
|
|
// API changes, though. Better way?
|
|
namespace llvm {
|
|
extern const MCInstrDesc ARMInsts[];
|
|
}
|
|
static const MCInstrDesc &getInstDesc(unsigned Opcode) {
|
|
return ARMInsts[Opcode];
|
|
}
|
|
|
|
// FIXME: We would really like to be able to tablegen'erate this.
|
|
bool ARMAsmParser::
|
|
validateInstruction(MCInst &Inst,
|
|
const SmallVectorImpl<MCParsedAsmOperand*> &Operands) {
|
|
const MCInstrDesc &MCID = getInstDesc(Inst.getOpcode());
|
|
SMLoc Loc = Operands[0]->getStartLoc();
|
|
// Check the IT block state first.
|
|
// NOTE: BKPT instruction has the interesting property of being
|
|
// allowed in IT blocks, but not being predicable. It just always
|
|
// executes.
|
|
if (inITBlock() && Inst.getOpcode() != ARM::tBKPT &&
|
|
Inst.getOpcode() != ARM::BKPT) {
|
|
unsigned bit = 1;
|
|
if (ITState.FirstCond)
|
|
ITState.FirstCond = false;
|
|
else
|
|
bit = (ITState.Mask >> (5 - ITState.CurPosition)) & 1;
|
|
// The instruction must be predicable.
|
|
if (!MCID.isPredicable())
|
|
return Error(Loc, "instructions in IT block must be predicable");
|
|
unsigned Cond = Inst.getOperand(MCID.findFirstPredOperandIdx()).getImm();
|
|
unsigned ITCond = bit ? ITState.Cond :
|
|
ARMCC::getOppositeCondition(ITState.Cond);
|
|
if (Cond != ITCond) {
|
|
// Find the condition code Operand to get its SMLoc information.
|
|
SMLoc CondLoc;
|
|
for (unsigned i = 1; i < Operands.size(); ++i)
|
|
if (static_cast<ARMOperand*>(Operands[i])->isCondCode())
|
|
CondLoc = Operands[i]->getStartLoc();
|
|
return Error(CondLoc, "incorrect condition in IT block; got '" +
|
|
StringRef(ARMCondCodeToString(ARMCC::CondCodes(Cond))) +
|
|
"', but expected '" +
|
|
ARMCondCodeToString(ARMCC::CondCodes(ITCond)) + "'");
|
|
}
|
|
// Check for non-'al' condition codes outside of the IT block.
|
|
} else if (isThumbTwo() && MCID.isPredicable() &&
|
|
Inst.getOperand(MCID.findFirstPredOperandIdx()).getImm() !=
|
|
ARMCC::AL && Inst.getOpcode() != ARM::tB &&
|
|
Inst.getOpcode() != ARM::t2B)
|
|
return Error(Loc, "predicated instructions must be in IT block");
|
|
|
|
switch (Inst.getOpcode()) {
|
|
case ARM::LDRD:
|
|
case ARM::LDRD_PRE:
|
|
case ARM::LDRD_POST: {
|
|
// Rt2 must be Rt + 1.
|
|
unsigned Rt = MRI->getEncodingValue(Inst.getOperand(0).getReg());
|
|
unsigned Rt2 = MRI->getEncodingValue(Inst.getOperand(1).getReg());
|
|
if (Rt2 != Rt + 1)
|
|
return Error(Operands[3]->getStartLoc(),
|
|
"destination operands must be sequential");
|
|
return false;
|
|
}
|
|
case ARM::STRD: {
|
|
// Rt2 must be Rt + 1.
|
|
unsigned Rt = MRI->getEncodingValue(Inst.getOperand(0).getReg());
|
|
unsigned Rt2 = MRI->getEncodingValue(Inst.getOperand(1).getReg());
|
|
if (Rt2 != Rt + 1)
|
|
return Error(Operands[3]->getStartLoc(),
|
|
"source operands must be sequential");
|
|
return false;
|
|
}
|
|
case ARM::STRD_PRE:
|
|
case ARM::STRD_POST: {
|
|
// Rt2 must be Rt + 1.
|
|
unsigned Rt = MRI->getEncodingValue(Inst.getOperand(1).getReg());
|
|
unsigned Rt2 = MRI->getEncodingValue(Inst.getOperand(2).getReg());
|
|
if (Rt2 != Rt + 1)
|
|
return Error(Operands[3]->getStartLoc(),
|
|
"source operands must be sequential");
|
|
return false;
|
|
}
|
|
case ARM::SBFX:
|
|
case ARM::UBFX: {
|
|
// width must be in range [1, 32-lsb]
|
|
unsigned lsb = Inst.getOperand(2).getImm();
|
|
unsigned widthm1 = Inst.getOperand(3).getImm();
|
|
if (widthm1 >= 32 - lsb)
|
|
return Error(Operands[5]->getStartLoc(),
|
|
"bitfield width must be in range [1,32-lsb]");
|
|
return false;
|
|
}
|
|
case ARM::tLDMIA: {
|
|
// If we're parsing Thumb2, the .w variant is available and handles
|
|
// most cases that are normally illegal for a Thumb1 LDM
|
|
// instruction. We'll make the transformation in processInstruction()
|
|
// if necessary.
|
|
//
|
|
// Thumb LDM instructions are writeback iff the base register is not
|
|
// in the register list.
|
|
unsigned Rn = Inst.getOperand(0).getReg();
|
|
bool hasWritebackToken =
|
|
(static_cast<ARMOperand*>(Operands[3])->isToken() &&
|
|
static_cast<ARMOperand*>(Operands[3])->getToken() == "!");
|
|
bool listContainsBase;
|
|
if (checkLowRegisterList(Inst, 3, Rn, 0, listContainsBase) && !isThumbTwo())
|
|
return Error(Operands[3 + hasWritebackToken]->getStartLoc(),
|
|
"registers must be in range r0-r7");
|
|
// If we should have writeback, then there should be a '!' token.
|
|
if (!listContainsBase && !hasWritebackToken && !isThumbTwo())
|
|
return Error(Operands[2]->getStartLoc(),
|
|
"writeback operator '!' expected");
|
|
// If we should not have writeback, there must not be a '!'. This is
|
|
// true even for the 32-bit wide encodings.
|
|
if (listContainsBase && hasWritebackToken)
|
|
return Error(Operands[3]->getStartLoc(),
|
|
"writeback operator '!' not allowed when base register "
|
|
"in register list");
|
|
|
|
break;
|
|
}
|
|
case ARM::t2LDMIA_UPD: {
|
|
if (listContainsReg(Inst, 3, Inst.getOperand(0).getReg()))
|
|
return Error(Operands[4]->getStartLoc(),
|
|
"writeback operator '!' not allowed when base register "
|
|
"in register list");
|
|
break;
|
|
}
|
|
case ARM::tMUL: {
|
|
// The second source operand must be the same register as the destination
|
|
// operand.
|
|
//
|
|
// In this case, we must directly check the parsed operands because the
|
|
// cvtThumbMultiply() function is written in such a way that it guarantees
|
|
// this first statement is always true for the new Inst. Essentially, the
|
|
// destination is unconditionally copied into the second source operand
|
|
// without checking to see if it matches what we actually parsed.
|
|
if (Operands.size() == 6 &&
|
|
(((ARMOperand*)Operands[3])->getReg() !=
|
|
((ARMOperand*)Operands[5])->getReg()) &&
|
|
(((ARMOperand*)Operands[3])->getReg() !=
|
|
((ARMOperand*)Operands[4])->getReg())) {
|
|
return Error(Operands[3]->getStartLoc(),
|
|
"destination register must match source register");
|
|
}
|
|
break;
|
|
}
|
|
// Like for ldm/stm, push and pop have hi-reg handling version in Thumb2,
|
|
// so only issue a diagnostic for thumb1. The instructions will be
|
|
// switched to the t2 encodings in processInstruction() if necessary.
|
|
case ARM::tPOP: {
|
|
bool listContainsBase;
|
|
if (checkLowRegisterList(Inst, 2, 0, ARM::PC, listContainsBase) &&
|
|
!isThumbTwo())
|
|
return Error(Operands[2]->getStartLoc(),
|
|
"registers must be in range r0-r7 or pc");
|
|
break;
|
|
}
|
|
case ARM::tPUSH: {
|
|
bool listContainsBase;
|
|
if (checkLowRegisterList(Inst, 2, 0, ARM::LR, listContainsBase) &&
|
|
!isThumbTwo())
|
|
return Error(Operands[2]->getStartLoc(),
|
|
"registers must be in range r0-r7 or lr");
|
|
break;
|
|
}
|
|
case ARM::tSTMIA_UPD: {
|
|
bool listContainsBase;
|
|
if (checkLowRegisterList(Inst, 4, 0, 0, listContainsBase) && !isThumbTwo())
|
|
return Error(Operands[4]->getStartLoc(),
|
|
"registers must be in range r0-r7");
|
|
break;
|
|
}
|
|
case ARM::tADDrSP: {
|
|
// If the non-SP source operand and the destination operand are not the
|
|
// same, we need thumb2 (for the wide encoding), or we have an error.
|
|
if (!isThumbTwo() &&
|
|
Inst.getOperand(0).getReg() != Inst.getOperand(2).getReg()) {
|
|
return Error(Operands[4]->getStartLoc(),
|
|
"source register must be the same as destination");
|
|
}
|
|
break;
|
|
}
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
static unsigned getRealVSTOpcode(unsigned Opc, unsigned &Spacing) {
|
|
switch(Opc) {
|
|
default: llvm_unreachable("unexpected opcode!");
|
|
// VST1LN
|
|
case ARM::VST1LNdWB_fixed_Asm_8: Spacing = 1; return ARM::VST1LNd8_UPD;
|
|
case ARM::VST1LNdWB_fixed_Asm_16: Spacing = 1; return ARM::VST1LNd16_UPD;
|
|
case ARM::VST1LNdWB_fixed_Asm_32: Spacing = 1; return ARM::VST1LNd32_UPD;
|
|
case ARM::VST1LNdWB_register_Asm_8: Spacing = 1; return ARM::VST1LNd8_UPD;
|
|
case ARM::VST1LNdWB_register_Asm_16: Spacing = 1; return ARM::VST1LNd16_UPD;
|
|
case ARM::VST1LNdWB_register_Asm_32: Spacing = 1; return ARM::VST1LNd32_UPD;
|
|
case ARM::VST1LNdAsm_8: Spacing = 1; return ARM::VST1LNd8;
|
|
case ARM::VST1LNdAsm_16: Spacing = 1; return ARM::VST1LNd16;
|
|
case ARM::VST1LNdAsm_32: Spacing = 1; return ARM::VST1LNd32;
|
|
|
|
// VST2LN
|
|
case ARM::VST2LNdWB_fixed_Asm_8: Spacing = 1; return ARM::VST2LNd8_UPD;
|
|
case ARM::VST2LNdWB_fixed_Asm_16: Spacing = 1; return ARM::VST2LNd16_UPD;
|
|
case ARM::VST2LNdWB_fixed_Asm_32: Spacing = 1; return ARM::VST2LNd32_UPD;
|
|
case ARM::VST2LNqWB_fixed_Asm_16: Spacing = 2; return ARM::VST2LNq16_UPD;
|
|
case ARM::VST2LNqWB_fixed_Asm_32: Spacing = 2; return ARM::VST2LNq32_UPD;
|
|
|
|
case ARM::VST2LNdWB_register_Asm_8: Spacing = 1; return ARM::VST2LNd8_UPD;
|
|
case ARM::VST2LNdWB_register_Asm_16: Spacing = 1; return ARM::VST2LNd16_UPD;
|
|
case ARM::VST2LNdWB_register_Asm_32: Spacing = 1; return ARM::VST2LNd32_UPD;
|
|
case ARM::VST2LNqWB_register_Asm_16: Spacing = 2; return ARM::VST2LNq16_UPD;
|
|
case ARM::VST2LNqWB_register_Asm_32: Spacing = 2; return ARM::VST2LNq32_UPD;
|
|
|
|
case ARM::VST2LNdAsm_8: Spacing = 1; return ARM::VST2LNd8;
|
|
case ARM::VST2LNdAsm_16: Spacing = 1; return ARM::VST2LNd16;
|
|
case ARM::VST2LNdAsm_32: Spacing = 1; return ARM::VST2LNd32;
|
|
case ARM::VST2LNqAsm_16: Spacing = 2; return ARM::VST2LNq16;
|
|
case ARM::VST2LNqAsm_32: Spacing = 2; return ARM::VST2LNq32;
|
|
|
|
// VST3LN
|
|
case ARM::VST3LNdWB_fixed_Asm_8: Spacing = 1; return ARM::VST3LNd8_UPD;
|
|
case ARM::VST3LNdWB_fixed_Asm_16: Spacing = 1; return ARM::VST3LNd16_UPD;
|
|
case ARM::VST3LNdWB_fixed_Asm_32: Spacing = 1; return ARM::VST3LNd32_UPD;
|
|
case ARM::VST3LNqWB_fixed_Asm_16: Spacing = 1; return ARM::VST3LNq16_UPD;
|
|
case ARM::VST3LNqWB_fixed_Asm_32: Spacing = 2; return ARM::VST3LNq32_UPD;
|
|
case ARM::VST3LNdWB_register_Asm_8: Spacing = 1; return ARM::VST3LNd8_UPD;
|
|
case ARM::VST3LNdWB_register_Asm_16: Spacing = 1; return ARM::VST3LNd16_UPD;
|
|
case ARM::VST3LNdWB_register_Asm_32: Spacing = 1; return ARM::VST3LNd32_UPD;
|
|
case ARM::VST3LNqWB_register_Asm_16: Spacing = 2; return ARM::VST3LNq16_UPD;
|
|
case ARM::VST3LNqWB_register_Asm_32: Spacing = 2; return ARM::VST3LNq32_UPD;
|
|
case ARM::VST3LNdAsm_8: Spacing = 1; return ARM::VST3LNd8;
|
|
case ARM::VST3LNdAsm_16: Spacing = 1; return ARM::VST3LNd16;
|
|
case ARM::VST3LNdAsm_32: Spacing = 1; return ARM::VST3LNd32;
|
|
case ARM::VST3LNqAsm_16: Spacing = 2; return ARM::VST3LNq16;
|
|
case ARM::VST3LNqAsm_32: Spacing = 2; return ARM::VST3LNq32;
|
|
|
|
// VST3
|
|
case ARM::VST3dWB_fixed_Asm_8: Spacing = 1; return ARM::VST3d8_UPD;
|
|
case ARM::VST3dWB_fixed_Asm_16: Spacing = 1; return ARM::VST3d16_UPD;
|
|
case ARM::VST3dWB_fixed_Asm_32: Spacing = 1; return ARM::VST3d32_UPD;
|
|
case ARM::VST3qWB_fixed_Asm_8: Spacing = 2; return ARM::VST3q8_UPD;
|
|
case ARM::VST3qWB_fixed_Asm_16: Spacing = 2; return ARM::VST3q16_UPD;
|
|
case ARM::VST3qWB_fixed_Asm_32: Spacing = 2; return ARM::VST3q32_UPD;
|
|
case ARM::VST3dWB_register_Asm_8: Spacing = 1; return ARM::VST3d8_UPD;
|
|
case ARM::VST3dWB_register_Asm_16: Spacing = 1; return ARM::VST3d16_UPD;
|
|
case ARM::VST3dWB_register_Asm_32: Spacing = 1; return ARM::VST3d32_UPD;
|
|
case ARM::VST3qWB_register_Asm_8: Spacing = 2; return ARM::VST3q8_UPD;
|
|
case ARM::VST3qWB_register_Asm_16: Spacing = 2; return ARM::VST3q16_UPD;
|
|
case ARM::VST3qWB_register_Asm_32: Spacing = 2; return ARM::VST3q32_UPD;
|
|
case ARM::VST3dAsm_8: Spacing = 1; return ARM::VST3d8;
|
|
case ARM::VST3dAsm_16: Spacing = 1; return ARM::VST3d16;
|
|
case ARM::VST3dAsm_32: Spacing = 1; return ARM::VST3d32;
|
|
case ARM::VST3qAsm_8: Spacing = 2; return ARM::VST3q8;
|
|
case ARM::VST3qAsm_16: Spacing = 2; return ARM::VST3q16;
|
|
case ARM::VST3qAsm_32: Spacing = 2; return ARM::VST3q32;
|
|
|
|
// VST4LN
|
|
case ARM::VST4LNdWB_fixed_Asm_8: Spacing = 1; return ARM::VST4LNd8_UPD;
|
|
case ARM::VST4LNdWB_fixed_Asm_16: Spacing = 1; return ARM::VST4LNd16_UPD;
|
|
case ARM::VST4LNdWB_fixed_Asm_32: Spacing = 1; return ARM::VST4LNd32_UPD;
|
|
case ARM::VST4LNqWB_fixed_Asm_16: Spacing = 1; return ARM::VST4LNq16_UPD;
|
|
case ARM::VST4LNqWB_fixed_Asm_32: Spacing = 2; return ARM::VST4LNq32_UPD;
|
|
case ARM::VST4LNdWB_register_Asm_8: Spacing = 1; return ARM::VST4LNd8_UPD;
|
|
case ARM::VST4LNdWB_register_Asm_16: Spacing = 1; return ARM::VST4LNd16_UPD;
|
|
case ARM::VST4LNdWB_register_Asm_32: Spacing = 1; return ARM::VST4LNd32_UPD;
|
|
case ARM::VST4LNqWB_register_Asm_16: Spacing = 2; return ARM::VST4LNq16_UPD;
|
|
case ARM::VST4LNqWB_register_Asm_32: Spacing = 2; return ARM::VST4LNq32_UPD;
|
|
case ARM::VST4LNdAsm_8: Spacing = 1; return ARM::VST4LNd8;
|
|
case ARM::VST4LNdAsm_16: Spacing = 1; return ARM::VST4LNd16;
|
|
case ARM::VST4LNdAsm_32: Spacing = 1; return ARM::VST4LNd32;
|
|
case ARM::VST4LNqAsm_16: Spacing = 2; return ARM::VST4LNq16;
|
|
case ARM::VST4LNqAsm_32: Spacing = 2; return ARM::VST4LNq32;
|
|
|
|
// VST4
|
|
case ARM::VST4dWB_fixed_Asm_8: Spacing = 1; return ARM::VST4d8_UPD;
|
|
case ARM::VST4dWB_fixed_Asm_16: Spacing = 1; return ARM::VST4d16_UPD;
|
|
case ARM::VST4dWB_fixed_Asm_32: Spacing = 1; return ARM::VST4d32_UPD;
|
|
case ARM::VST4qWB_fixed_Asm_8: Spacing = 2; return ARM::VST4q8_UPD;
|
|
case ARM::VST4qWB_fixed_Asm_16: Spacing = 2; return ARM::VST4q16_UPD;
|
|
case ARM::VST4qWB_fixed_Asm_32: Spacing = 2; return ARM::VST4q32_UPD;
|
|
case ARM::VST4dWB_register_Asm_8: Spacing = 1; return ARM::VST4d8_UPD;
|
|
case ARM::VST4dWB_register_Asm_16: Spacing = 1; return ARM::VST4d16_UPD;
|
|
case ARM::VST4dWB_register_Asm_32: Spacing = 1; return ARM::VST4d32_UPD;
|
|
case ARM::VST4qWB_register_Asm_8: Spacing = 2; return ARM::VST4q8_UPD;
|
|
case ARM::VST4qWB_register_Asm_16: Spacing = 2; return ARM::VST4q16_UPD;
|
|
case ARM::VST4qWB_register_Asm_32: Spacing = 2; return ARM::VST4q32_UPD;
|
|
case ARM::VST4dAsm_8: Spacing = 1; return ARM::VST4d8;
|
|
case ARM::VST4dAsm_16: Spacing = 1; return ARM::VST4d16;
|
|
case ARM::VST4dAsm_32: Spacing = 1; return ARM::VST4d32;
|
|
case ARM::VST4qAsm_8: Spacing = 2; return ARM::VST4q8;
|
|
case ARM::VST4qAsm_16: Spacing = 2; return ARM::VST4q16;
|
|
case ARM::VST4qAsm_32: Spacing = 2; return ARM::VST4q32;
|
|
}
|
|
}
|
|
|
|
static unsigned getRealVLDOpcode(unsigned Opc, unsigned &Spacing) {
|
|
switch(Opc) {
|
|
default: llvm_unreachable("unexpected opcode!");
|
|
// VLD1LN
|
|
case ARM::VLD1LNdWB_fixed_Asm_8: Spacing = 1; return ARM::VLD1LNd8_UPD;
|
|
case ARM::VLD1LNdWB_fixed_Asm_16: Spacing = 1; return ARM::VLD1LNd16_UPD;
|
|
case ARM::VLD1LNdWB_fixed_Asm_32: Spacing = 1; return ARM::VLD1LNd32_UPD;
|
|
case ARM::VLD1LNdWB_register_Asm_8: Spacing = 1; return ARM::VLD1LNd8_UPD;
|
|
case ARM::VLD1LNdWB_register_Asm_16: Spacing = 1; return ARM::VLD1LNd16_UPD;
|
|
case ARM::VLD1LNdWB_register_Asm_32: Spacing = 1; return ARM::VLD1LNd32_UPD;
|
|
case ARM::VLD1LNdAsm_8: Spacing = 1; return ARM::VLD1LNd8;
|
|
case ARM::VLD1LNdAsm_16: Spacing = 1; return ARM::VLD1LNd16;
|
|
case ARM::VLD1LNdAsm_32: Spacing = 1; return ARM::VLD1LNd32;
|
|
|
|
// VLD2LN
|
|
case ARM::VLD2LNdWB_fixed_Asm_8: Spacing = 1; return ARM::VLD2LNd8_UPD;
|
|
case ARM::VLD2LNdWB_fixed_Asm_16: Spacing = 1; return ARM::VLD2LNd16_UPD;
|
|
case ARM::VLD2LNdWB_fixed_Asm_32: Spacing = 1; return ARM::VLD2LNd32_UPD;
|
|
case ARM::VLD2LNqWB_fixed_Asm_16: Spacing = 1; return ARM::VLD2LNq16_UPD;
|
|
case ARM::VLD2LNqWB_fixed_Asm_32: Spacing = 2; return ARM::VLD2LNq32_UPD;
|
|
case ARM::VLD2LNdWB_register_Asm_8: Spacing = 1; return ARM::VLD2LNd8_UPD;
|
|
case ARM::VLD2LNdWB_register_Asm_16: Spacing = 1; return ARM::VLD2LNd16_UPD;
|
|
case ARM::VLD2LNdWB_register_Asm_32: Spacing = 1; return ARM::VLD2LNd32_UPD;
|
|
case ARM::VLD2LNqWB_register_Asm_16: Spacing = 2; return ARM::VLD2LNq16_UPD;
|
|
case ARM::VLD2LNqWB_register_Asm_32: Spacing = 2; return ARM::VLD2LNq32_UPD;
|
|
case ARM::VLD2LNdAsm_8: Spacing = 1; return ARM::VLD2LNd8;
|
|
case ARM::VLD2LNdAsm_16: Spacing = 1; return ARM::VLD2LNd16;
|
|
case ARM::VLD2LNdAsm_32: Spacing = 1; return ARM::VLD2LNd32;
|
|
case ARM::VLD2LNqAsm_16: Spacing = 2; return ARM::VLD2LNq16;
|
|
case ARM::VLD2LNqAsm_32: Spacing = 2; return ARM::VLD2LNq32;
|
|
|
|
// VLD3DUP
|
|
case ARM::VLD3DUPdWB_fixed_Asm_8: Spacing = 1; return ARM::VLD3DUPd8_UPD;
|
|
case ARM::VLD3DUPdWB_fixed_Asm_16: Spacing = 1; return ARM::VLD3DUPd16_UPD;
|
|
case ARM::VLD3DUPdWB_fixed_Asm_32: Spacing = 1; return ARM::VLD3DUPd32_UPD;
|
|
case ARM::VLD3DUPqWB_fixed_Asm_8: Spacing = 1; return ARM::VLD3DUPq8_UPD;
|
|
case ARM::VLD3DUPqWB_fixed_Asm_16: Spacing = 1; return ARM::VLD3DUPq16_UPD;
|
|
case ARM::VLD3DUPqWB_fixed_Asm_32: Spacing = 2; return ARM::VLD3DUPq32_UPD;
|
|
case ARM::VLD3DUPdWB_register_Asm_8: Spacing = 1; return ARM::VLD3DUPd8_UPD;
|
|
case ARM::VLD3DUPdWB_register_Asm_16: Spacing = 1; return ARM::VLD3DUPd16_UPD;
|
|
case ARM::VLD3DUPdWB_register_Asm_32: Spacing = 1; return ARM::VLD3DUPd32_UPD;
|
|
case ARM::VLD3DUPqWB_register_Asm_8: Spacing = 2; return ARM::VLD3DUPq8_UPD;
|
|
case ARM::VLD3DUPqWB_register_Asm_16: Spacing = 2; return ARM::VLD3DUPq16_UPD;
|
|
case ARM::VLD3DUPqWB_register_Asm_32: Spacing = 2; return ARM::VLD3DUPq32_UPD;
|
|
case ARM::VLD3DUPdAsm_8: Spacing = 1; return ARM::VLD3DUPd8;
|
|
case ARM::VLD3DUPdAsm_16: Spacing = 1; return ARM::VLD3DUPd16;
|
|
case ARM::VLD3DUPdAsm_32: Spacing = 1; return ARM::VLD3DUPd32;
|
|
case ARM::VLD3DUPqAsm_8: Spacing = 2; return ARM::VLD3DUPq8;
|
|
case ARM::VLD3DUPqAsm_16: Spacing = 2; return ARM::VLD3DUPq16;
|
|
case ARM::VLD3DUPqAsm_32: Spacing = 2; return ARM::VLD3DUPq32;
|
|
|
|
// VLD3LN
|
|
case ARM::VLD3LNdWB_fixed_Asm_8: Spacing = 1; return ARM::VLD3LNd8_UPD;
|
|
case ARM::VLD3LNdWB_fixed_Asm_16: Spacing = 1; return ARM::VLD3LNd16_UPD;
|
|
case ARM::VLD3LNdWB_fixed_Asm_32: Spacing = 1; return ARM::VLD3LNd32_UPD;
|
|
case ARM::VLD3LNqWB_fixed_Asm_16: Spacing = 1; return ARM::VLD3LNq16_UPD;
|
|
case ARM::VLD3LNqWB_fixed_Asm_32: Spacing = 2; return ARM::VLD3LNq32_UPD;
|
|
case ARM::VLD3LNdWB_register_Asm_8: Spacing = 1; return ARM::VLD3LNd8_UPD;
|
|
case ARM::VLD3LNdWB_register_Asm_16: Spacing = 1; return ARM::VLD3LNd16_UPD;
|
|
case ARM::VLD3LNdWB_register_Asm_32: Spacing = 1; return ARM::VLD3LNd32_UPD;
|
|
case ARM::VLD3LNqWB_register_Asm_16: Spacing = 2; return ARM::VLD3LNq16_UPD;
|
|
case ARM::VLD3LNqWB_register_Asm_32: Spacing = 2; return ARM::VLD3LNq32_UPD;
|
|
case ARM::VLD3LNdAsm_8: Spacing = 1; return ARM::VLD3LNd8;
|
|
case ARM::VLD3LNdAsm_16: Spacing = 1; return ARM::VLD3LNd16;
|
|
case ARM::VLD3LNdAsm_32: Spacing = 1; return ARM::VLD3LNd32;
|
|
case ARM::VLD3LNqAsm_16: Spacing = 2; return ARM::VLD3LNq16;
|
|
case ARM::VLD3LNqAsm_32: Spacing = 2; return ARM::VLD3LNq32;
|
|
|
|
// VLD3
|
|
case ARM::VLD3dWB_fixed_Asm_8: Spacing = 1; return ARM::VLD3d8_UPD;
|
|
case ARM::VLD3dWB_fixed_Asm_16: Spacing = 1; return ARM::VLD3d16_UPD;
|
|
case ARM::VLD3dWB_fixed_Asm_32: Spacing = 1; return ARM::VLD3d32_UPD;
|
|
case ARM::VLD3qWB_fixed_Asm_8: Spacing = 2; return ARM::VLD3q8_UPD;
|
|
case ARM::VLD3qWB_fixed_Asm_16: Spacing = 2; return ARM::VLD3q16_UPD;
|
|
case ARM::VLD3qWB_fixed_Asm_32: Spacing = 2; return ARM::VLD3q32_UPD;
|
|
case ARM::VLD3dWB_register_Asm_8: Spacing = 1; return ARM::VLD3d8_UPD;
|
|
case ARM::VLD3dWB_register_Asm_16: Spacing = 1; return ARM::VLD3d16_UPD;
|
|
case ARM::VLD3dWB_register_Asm_32: Spacing = 1; return ARM::VLD3d32_UPD;
|
|
case ARM::VLD3qWB_register_Asm_8: Spacing = 2; return ARM::VLD3q8_UPD;
|
|
case ARM::VLD3qWB_register_Asm_16: Spacing = 2; return ARM::VLD3q16_UPD;
|
|
case ARM::VLD3qWB_register_Asm_32: Spacing = 2; return ARM::VLD3q32_UPD;
|
|
case ARM::VLD3dAsm_8: Spacing = 1; return ARM::VLD3d8;
|
|
case ARM::VLD3dAsm_16: Spacing = 1; return ARM::VLD3d16;
|
|
case ARM::VLD3dAsm_32: Spacing = 1; return ARM::VLD3d32;
|
|
case ARM::VLD3qAsm_8: Spacing = 2; return ARM::VLD3q8;
|
|
case ARM::VLD3qAsm_16: Spacing = 2; return ARM::VLD3q16;
|
|
case ARM::VLD3qAsm_32: Spacing = 2; return ARM::VLD3q32;
|
|
|
|
// VLD4LN
|
|
case ARM::VLD4LNdWB_fixed_Asm_8: Spacing = 1; return ARM::VLD4LNd8_UPD;
|
|
case ARM::VLD4LNdWB_fixed_Asm_16: Spacing = 1; return ARM::VLD4LNd16_UPD;
|
|
case ARM::VLD4LNdWB_fixed_Asm_32: Spacing = 1; return ARM::VLD4LNd32_UPD;
|
|
case ARM::VLD4LNqWB_fixed_Asm_16: Spacing = 1; return ARM::VLD4LNq16_UPD;
|
|
case ARM::VLD4LNqWB_fixed_Asm_32: Spacing = 2; return ARM::VLD4LNq32_UPD;
|
|
case ARM::VLD4LNdWB_register_Asm_8: Spacing = 1; return ARM::VLD4LNd8_UPD;
|
|
case ARM::VLD4LNdWB_register_Asm_16: Spacing = 1; return ARM::VLD4LNd16_UPD;
|
|
case ARM::VLD4LNdWB_register_Asm_32: Spacing = 1; return ARM::VLD4LNd32_UPD;
|
|
case ARM::VLD4LNqWB_register_Asm_16: Spacing = 2; return ARM::VLD4LNq16_UPD;
|
|
case ARM::VLD4LNqWB_register_Asm_32: Spacing = 2; return ARM::VLD4LNq32_UPD;
|
|
case ARM::VLD4LNdAsm_8: Spacing = 1; return ARM::VLD4LNd8;
|
|
case ARM::VLD4LNdAsm_16: Spacing = 1; return ARM::VLD4LNd16;
|
|
case ARM::VLD4LNdAsm_32: Spacing = 1; return ARM::VLD4LNd32;
|
|
case ARM::VLD4LNqAsm_16: Spacing = 2; return ARM::VLD4LNq16;
|
|
case ARM::VLD4LNqAsm_32: Spacing = 2; return ARM::VLD4LNq32;
|
|
|
|
// VLD4DUP
|
|
case ARM::VLD4DUPdWB_fixed_Asm_8: Spacing = 1; return ARM::VLD4DUPd8_UPD;
|
|
case ARM::VLD4DUPdWB_fixed_Asm_16: Spacing = 1; return ARM::VLD4DUPd16_UPD;
|
|
case ARM::VLD4DUPdWB_fixed_Asm_32: Spacing = 1; return ARM::VLD4DUPd32_UPD;
|
|
case ARM::VLD4DUPqWB_fixed_Asm_8: Spacing = 1; return ARM::VLD4DUPq8_UPD;
|
|
case ARM::VLD4DUPqWB_fixed_Asm_16: Spacing = 1; return ARM::VLD4DUPq16_UPD;
|
|
case ARM::VLD4DUPqWB_fixed_Asm_32: Spacing = 2; return ARM::VLD4DUPq32_UPD;
|
|
case ARM::VLD4DUPdWB_register_Asm_8: Spacing = 1; return ARM::VLD4DUPd8_UPD;
|
|
case ARM::VLD4DUPdWB_register_Asm_16: Spacing = 1; return ARM::VLD4DUPd16_UPD;
|
|
case ARM::VLD4DUPdWB_register_Asm_32: Spacing = 1; return ARM::VLD4DUPd32_UPD;
|
|
case ARM::VLD4DUPqWB_register_Asm_8: Spacing = 2; return ARM::VLD4DUPq8_UPD;
|
|
case ARM::VLD4DUPqWB_register_Asm_16: Spacing = 2; return ARM::VLD4DUPq16_UPD;
|
|
case ARM::VLD4DUPqWB_register_Asm_32: Spacing = 2; return ARM::VLD4DUPq32_UPD;
|
|
case ARM::VLD4DUPdAsm_8: Spacing = 1; return ARM::VLD4DUPd8;
|
|
case ARM::VLD4DUPdAsm_16: Spacing = 1; return ARM::VLD4DUPd16;
|
|
case ARM::VLD4DUPdAsm_32: Spacing = 1; return ARM::VLD4DUPd32;
|
|
case ARM::VLD4DUPqAsm_8: Spacing = 2; return ARM::VLD4DUPq8;
|
|
case ARM::VLD4DUPqAsm_16: Spacing = 2; return ARM::VLD4DUPq16;
|
|
case ARM::VLD4DUPqAsm_32: Spacing = 2; return ARM::VLD4DUPq32;
|
|
|
|
// VLD4
|
|
case ARM::VLD4dWB_fixed_Asm_8: Spacing = 1; return ARM::VLD4d8_UPD;
|
|
case ARM::VLD4dWB_fixed_Asm_16: Spacing = 1; return ARM::VLD4d16_UPD;
|
|
case ARM::VLD4dWB_fixed_Asm_32: Spacing = 1; return ARM::VLD4d32_UPD;
|
|
case ARM::VLD4qWB_fixed_Asm_8: Spacing = 2; return ARM::VLD4q8_UPD;
|
|
case ARM::VLD4qWB_fixed_Asm_16: Spacing = 2; return ARM::VLD4q16_UPD;
|
|
case ARM::VLD4qWB_fixed_Asm_32: Spacing = 2; return ARM::VLD4q32_UPD;
|
|
case ARM::VLD4dWB_register_Asm_8: Spacing = 1; return ARM::VLD4d8_UPD;
|
|
case ARM::VLD4dWB_register_Asm_16: Spacing = 1; return ARM::VLD4d16_UPD;
|
|
case ARM::VLD4dWB_register_Asm_32: Spacing = 1; return ARM::VLD4d32_UPD;
|
|
case ARM::VLD4qWB_register_Asm_8: Spacing = 2; return ARM::VLD4q8_UPD;
|
|
case ARM::VLD4qWB_register_Asm_16: Spacing = 2; return ARM::VLD4q16_UPD;
|
|
case ARM::VLD4qWB_register_Asm_32: Spacing = 2; return ARM::VLD4q32_UPD;
|
|
case ARM::VLD4dAsm_8: Spacing = 1; return ARM::VLD4d8;
|
|
case ARM::VLD4dAsm_16: Spacing = 1; return ARM::VLD4d16;
|
|
case ARM::VLD4dAsm_32: Spacing = 1; return ARM::VLD4d32;
|
|
case ARM::VLD4qAsm_8: Spacing = 2; return ARM::VLD4q8;
|
|
case ARM::VLD4qAsm_16: Spacing = 2; return ARM::VLD4q16;
|
|
case ARM::VLD4qAsm_32: Spacing = 2; return ARM::VLD4q32;
|
|
}
|
|
}
|
|
|
|
bool ARMAsmParser::
|
|
processInstruction(MCInst &Inst,
|
|
const SmallVectorImpl<MCParsedAsmOperand*> &Operands) {
|
|
switch (Inst.getOpcode()) {
|
|
// Alias for alternate form of 'ADR Rd, #imm' instruction.
|
|
case ARM::ADDri: {
|
|
if (Inst.getOperand(1).getReg() != ARM::PC ||
|
|
Inst.getOperand(5).getReg() != 0)
|
|
return false;
|
|
MCInst TmpInst;
|
|
TmpInst.setOpcode(ARM::ADR);
|
|
TmpInst.addOperand(Inst.getOperand(0));
|
|
TmpInst.addOperand(Inst.getOperand(2));
|
|
TmpInst.addOperand(Inst.getOperand(3));
|
|
TmpInst.addOperand(Inst.getOperand(4));
|
|
Inst = TmpInst;
|
|
return true;
|
|
}
|
|
// Aliases for alternate PC+imm syntax of LDR instructions.
|
|
case ARM::t2LDRpcrel:
|
|
Inst.setOpcode(ARM::t2LDRpci);
|
|
return true;
|
|
case ARM::t2LDRBpcrel:
|
|
Inst.setOpcode(ARM::t2LDRBpci);
|
|
return true;
|
|
case ARM::t2LDRHpcrel:
|
|
Inst.setOpcode(ARM::t2LDRHpci);
|
|
return true;
|
|
case ARM::t2LDRSBpcrel:
|
|
Inst.setOpcode(ARM::t2LDRSBpci);
|
|
return true;
|
|
case ARM::t2LDRSHpcrel:
|
|
Inst.setOpcode(ARM::t2LDRSHpci);
|
|
return true;
|
|
// Handle NEON VST complex aliases.
|
|
case ARM::VST1LNdWB_register_Asm_8:
|
|
case ARM::VST1LNdWB_register_Asm_16:
|
|
case ARM::VST1LNdWB_register_Asm_32: {
|
|
MCInst TmpInst;
|
|
// Shuffle the operands around so the lane index operand is in the
|
|
// right place.
|
|
unsigned Spacing;
|
|
TmpInst.setOpcode(getRealVSTOpcode(Inst.getOpcode(), Spacing));
|
|
TmpInst.addOperand(Inst.getOperand(2)); // Rn_wb
|
|
TmpInst.addOperand(Inst.getOperand(2)); // Rn
|
|
TmpInst.addOperand(Inst.getOperand(3)); // alignment
|
|
TmpInst.addOperand(Inst.getOperand(4)); // Rm
|
|
TmpInst.addOperand(Inst.getOperand(0)); // Vd
|
|
TmpInst.addOperand(Inst.getOperand(1)); // lane
|
|
TmpInst.addOperand(Inst.getOperand(5)); // CondCode
|
|
TmpInst.addOperand(Inst.getOperand(6));
|
|
Inst = TmpInst;
|
|
return true;
|
|
}
|
|
|
|
case ARM::VST2LNdWB_register_Asm_8:
|
|
case ARM::VST2LNdWB_register_Asm_16:
|
|
case ARM::VST2LNdWB_register_Asm_32:
|
|
case ARM::VST2LNqWB_register_Asm_16:
|
|
case ARM::VST2LNqWB_register_Asm_32: {
|
|
MCInst TmpInst;
|
|
// Shuffle the operands around so the lane index operand is in the
|
|
// right place.
|
|
unsigned Spacing;
|
|
TmpInst.setOpcode(getRealVSTOpcode(Inst.getOpcode(), Spacing));
|
|
TmpInst.addOperand(Inst.getOperand(2)); // Rn_wb
|
|
TmpInst.addOperand(Inst.getOperand(2)); // Rn
|
|
TmpInst.addOperand(Inst.getOperand(3)); // alignment
|
|
TmpInst.addOperand(Inst.getOperand(4)); // Rm
|
|
TmpInst.addOperand(Inst.getOperand(0)); // Vd
|
|
TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
|
|
Spacing));
|
|
TmpInst.addOperand(Inst.getOperand(1)); // lane
|
|
TmpInst.addOperand(Inst.getOperand(5)); // CondCode
|
|
TmpInst.addOperand(Inst.getOperand(6));
|
|
Inst = TmpInst;
|
|
return true;
|
|
}
|
|
|
|
case ARM::VST3LNdWB_register_Asm_8:
|
|
case ARM::VST3LNdWB_register_Asm_16:
|
|
case ARM::VST3LNdWB_register_Asm_32:
|
|
case ARM::VST3LNqWB_register_Asm_16:
|
|
case ARM::VST3LNqWB_register_Asm_32: {
|
|
MCInst TmpInst;
|
|
// Shuffle the operands around so the lane index operand is in the
|
|
// right place.
|
|
unsigned Spacing;
|
|
TmpInst.setOpcode(getRealVSTOpcode(Inst.getOpcode(), Spacing));
|
|
TmpInst.addOperand(Inst.getOperand(2)); // Rn_wb
|
|
TmpInst.addOperand(Inst.getOperand(2)); // Rn
|
|
TmpInst.addOperand(Inst.getOperand(3)); // alignment
|
|
TmpInst.addOperand(Inst.getOperand(4)); // Rm
|
|
TmpInst.addOperand(Inst.getOperand(0)); // Vd
|
|
TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
|
|
Spacing));
|
|
TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
|
|
Spacing * 2));
|
|
TmpInst.addOperand(Inst.getOperand(1)); // lane
|
|
TmpInst.addOperand(Inst.getOperand(5)); // CondCode
|
|
TmpInst.addOperand(Inst.getOperand(6));
|
|
Inst = TmpInst;
|
|
return true;
|
|
}
|
|
|
|
case ARM::VST4LNdWB_register_Asm_8:
|
|
case ARM::VST4LNdWB_register_Asm_16:
|
|
case ARM::VST4LNdWB_register_Asm_32:
|
|
case ARM::VST4LNqWB_register_Asm_16:
|
|
case ARM::VST4LNqWB_register_Asm_32: {
|
|
MCInst TmpInst;
|
|
// Shuffle the operands around so the lane index operand is in the
|
|
// right place.
|
|
unsigned Spacing;
|
|
TmpInst.setOpcode(getRealVSTOpcode(Inst.getOpcode(), Spacing));
|
|
TmpInst.addOperand(Inst.getOperand(2)); // Rn_wb
|
|
TmpInst.addOperand(Inst.getOperand(2)); // Rn
|
|
TmpInst.addOperand(Inst.getOperand(3)); // alignment
|
|
TmpInst.addOperand(Inst.getOperand(4)); // Rm
|
|
TmpInst.addOperand(Inst.getOperand(0)); // Vd
|
|
TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
|
|
Spacing));
|
|
TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
|
|
Spacing * 2));
|
|
TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
|
|
Spacing * 3));
|
|
TmpInst.addOperand(Inst.getOperand(1)); // lane
|
|
TmpInst.addOperand(Inst.getOperand(5)); // CondCode
|
|
TmpInst.addOperand(Inst.getOperand(6));
|
|
Inst = TmpInst;
|
|
return true;
|
|
}
|
|
|
|
case ARM::VST1LNdWB_fixed_Asm_8:
|
|
case ARM::VST1LNdWB_fixed_Asm_16:
|
|
case ARM::VST1LNdWB_fixed_Asm_32: {
|
|
MCInst TmpInst;
|
|
// Shuffle the operands around so the lane index operand is in the
|
|
// right place.
|
|
unsigned Spacing;
|
|
TmpInst.setOpcode(getRealVSTOpcode(Inst.getOpcode(), Spacing));
|
|
TmpInst.addOperand(Inst.getOperand(2)); // Rn_wb
|
|
TmpInst.addOperand(Inst.getOperand(2)); // Rn
|
|
TmpInst.addOperand(Inst.getOperand(3)); // alignment
|
|
TmpInst.addOperand(MCOperand::CreateReg(0)); // Rm
|
|
TmpInst.addOperand(Inst.getOperand(0)); // Vd
|
|
TmpInst.addOperand(Inst.getOperand(1)); // lane
|
|
TmpInst.addOperand(Inst.getOperand(4)); // CondCode
|
|
TmpInst.addOperand(Inst.getOperand(5));
|
|
Inst = TmpInst;
|
|
return true;
|
|
}
|
|
|
|
case ARM::VST2LNdWB_fixed_Asm_8:
|
|
case ARM::VST2LNdWB_fixed_Asm_16:
|
|
case ARM::VST2LNdWB_fixed_Asm_32:
|
|
case ARM::VST2LNqWB_fixed_Asm_16:
|
|
case ARM::VST2LNqWB_fixed_Asm_32: {
|
|
MCInst TmpInst;
|
|
// Shuffle the operands around so the lane index operand is in the
|
|
// right place.
|
|
unsigned Spacing;
|
|
TmpInst.setOpcode(getRealVSTOpcode(Inst.getOpcode(), Spacing));
|
|
TmpInst.addOperand(Inst.getOperand(2)); // Rn_wb
|
|
TmpInst.addOperand(Inst.getOperand(2)); // Rn
|
|
TmpInst.addOperand(Inst.getOperand(3)); // alignment
|
|
TmpInst.addOperand(MCOperand::CreateReg(0)); // Rm
|
|
TmpInst.addOperand(Inst.getOperand(0)); // Vd
|
|
TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
|
|
Spacing));
|
|
TmpInst.addOperand(Inst.getOperand(1)); // lane
|
|
TmpInst.addOperand(Inst.getOperand(4)); // CondCode
|
|
TmpInst.addOperand(Inst.getOperand(5));
|
|
Inst = TmpInst;
|
|
return true;
|
|
}
|
|
|
|
case ARM::VST3LNdWB_fixed_Asm_8:
|
|
case ARM::VST3LNdWB_fixed_Asm_16:
|
|
case ARM::VST3LNdWB_fixed_Asm_32:
|
|
case ARM::VST3LNqWB_fixed_Asm_16:
|
|
case ARM::VST3LNqWB_fixed_Asm_32: {
|
|
MCInst TmpInst;
|
|
// Shuffle the operands around so the lane index operand is in the
|
|
// right place.
|
|
unsigned Spacing;
|
|
TmpInst.setOpcode(getRealVSTOpcode(Inst.getOpcode(), Spacing));
|
|
TmpInst.addOperand(Inst.getOperand(2)); // Rn_wb
|
|
TmpInst.addOperand(Inst.getOperand(2)); // Rn
|
|
TmpInst.addOperand(Inst.getOperand(3)); // alignment
|
|
TmpInst.addOperand(MCOperand::CreateReg(0)); // Rm
|
|
TmpInst.addOperand(Inst.getOperand(0)); // Vd
|
|
TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
|
|
Spacing));
|
|
TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
|
|
Spacing * 2));
|
|
TmpInst.addOperand(Inst.getOperand(1)); // lane
|
|
TmpInst.addOperand(Inst.getOperand(4)); // CondCode
|
|
TmpInst.addOperand(Inst.getOperand(5));
|
|
Inst = TmpInst;
|
|
return true;
|
|
}
|
|
|
|
case ARM::VST4LNdWB_fixed_Asm_8:
|
|
case ARM::VST4LNdWB_fixed_Asm_16:
|
|
case ARM::VST4LNdWB_fixed_Asm_32:
|
|
case ARM::VST4LNqWB_fixed_Asm_16:
|
|
case ARM::VST4LNqWB_fixed_Asm_32: {
|
|
MCInst TmpInst;
|
|
// Shuffle the operands around so the lane index operand is in the
|
|
// right place.
|
|
unsigned Spacing;
|
|
TmpInst.setOpcode(getRealVSTOpcode(Inst.getOpcode(), Spacing));
|
|
TmpInst.addOperand(Inst.getOperand(2)); // Rn_wb
|
|
TmpInst.addOperand(Inst.getOperand(2)); // Rn
|
|
TmpInst.addOperand(Inst.getOperand(3)); // alignment
|
|
TmpInst.addOperand(MCOperand::CreateReg(0)); // Rm
|
|
TmpInst.addOperand(Inst.getOperand(0)); // Vd
|
|
TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
|
|
Spacing));
|
|
TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
|
|
Spacing * 2));
|
|
TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
|
|
Spacing * 3));
|
|
TmpInst.addOperand(Inst.getOperand(1)); // lane
|
|
TmpInst.addOperand(Inst.getOperand(4)); // CondCode
|
|
TmpInst.addOperand(Inst.getOperand(5));
|
|
Inst = TmpInst;
|
|
return true;
|
|
}
|
|
|
|
case ARM::VST1LNdAsm_8:
|
|
case ARM::VST1LNdAsm_16:
|
|
case ARM::VST1LNdAsm_32: {
|
|
MCInst TmpInst;
|
|
// Shuffle the operands around so the lane index operand is in the
|
|
// right place.
|
|
unsigned Spacing;
|
|
TmpInst.setOpcode(getRealVSTOpcode(Inst.getOpcode(), Spacing));
|
|
TmpInst.addOperand(Inst.getOperand(2)); // Rn
|
|
TmpInst.addOperand(Inst.getOperand(3)); // alignment
|
|
TmpInst.addOperand(Inst.getOperand(0)); // Vd
|
|
TmpInst.addOperand(Inst.getOperand(1)); // lane
|
|
TmpInst.addOperand(Inst.getOperand(4)); // CondCode
|
|
TmpInst.addOperand(Inst.getOperand(5));
|
|
Inst = TmpInst;
|
|
return true;
|
|
}
|
|
|
|
case ARM::VST2LNdAsm_8:
|
|
case ARM::VST2LNdAsm_16:
|
|
case ARM::VST2LNdAsm_32:
|
|
case ARM::VST2LNqAsm_16:
|
|
case ARM::VST2LNqAsm_32: {
|
|
MCInst TmpInst;
|
|
// Shuffle the operands around so the lane index operand is in the
|
|
// right place.
|
|
unsigned Spacing;
|
|
TmpInst.setOpcode(getRealVSTOpcode(Inst.getOpcode(), Spacing));
|
|
TmpInst.addOperand(Inst.getOperand(2)); // Rn
|
|
TmpInst.addOperand(Inst.getOperand(3)); // alignment
|
|
TmpInst.addOperand(Inst.getOperand(0)); // Vd
|
|
TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
|
|
Spacing));
|
|
TmpInst.addOperand(Inst.getOperand(1)); // lane
|
|
TmpInst.addOperand(Inst.getOperand(4)); // CondCode
|
|
TmpInst.addOperand(Inst.getOperand(5));
|
|
Inst = TmpInst;
|
|
return true;
|
|
}
|
|
|
|
case ARM::VST3LNdAsm_8:
|
|
case ARM::VST3LNdAsm_16:
|
|
case ARM::VST3LNdAsm_32:
|
|
case ARM::VST3LNqAsm_16:
|
|
case ARM::VST3LNqAsm_32: {
|
|
MCInst TmpInst;
|
|
// Shuffle the operands around so the lane index operand is in the
|
|
// right place.
|
|
unsigned Spacing;
|
|
TmpInst.setOpcode(getRealVSTOpcode(Inst.getOpcode(), Spacing));
|
|
TmpInst.addOperand(Inst.getOperand(2)); // Rn
|
|
TmpInst.addOperand(Inst.getOperand(3)); // alignment
|
|
TmpInst.addOperand(Inst.getOperand(0)); // Vd
|
|
TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
|
|
Spacing));
|
|
TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
|
|
Spacing * 2));
|
|
TmpInst.addOperand(Inst.getOperand(1)); // lane
|
|
TmpInst.addOperand(Inst.getOperand(4)); // CondCode
|
|
TmpInst.addOperand(Inst.getOperand(5));
|
|
Inst = TmpInst;
|
|
return true;
|
|
}
|
|
|
|
case ARM::VST4LNdAsm_8:
|
|
case ARM::VST4LNdAsm_16:
|
|
case ARM::VST4LNdAsm_32:
|
|
case ARM::VST4LNqAsm_16:
|
|
case ARM::VST4LNqAsm_32: {
|
|
MCInst TmpInst;
|
|
// Shuffle the operands around so the lane index operand is in the
|
|
// right place.
|
|
unsigned Spacing;
|
|
TmpInst.setOpcode(getRealVSTOpcode(Inst.getOpcode(), Spacing));
|
|
TmpInst.addOperand(Inst.getOperand(2)); // Rn
|
|
TmpInst.addOperand(Inst.getOperand(3)); // alignment
|
|
TmpInst.addOperand(Inst.getOperand(0)); // Vd
|
|
TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
|
|
Spacing));
|
|
TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
|
|
Spacing * 2));
|
|
TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
|
|
Spacing * 3));
|
|
TmpInst.addOperand(Inst.getOperand(1)); // lane
|
|
TmpInst.addOperand(Inst.getOperand(4)); // CondCode
|
|
TmpInst.addOperand(Inst.getOperand(5));
|
|
Inst = TmpInst;
|
|
return true;
|
|
}
|
|
|
|
// Handle NEON VLD complex aliases.
|
|
case ARM::VLD1LNdWB_register_Asm_8:
|
|
case ARM::VLD1LNdWB_register_Asm_16:
|
|
case ARM::VLD1LNdWB_register_Asm_32: {
|
|
MCInst TmpInst;
|
|
// Shuffle the operands around so the lane index operand is in the
|
|
// right place.
|
|
unsigned Spacing;
|
|
TmpInst.setOpcode(getRealVLDOpcode(Inst.getOpcode(), Spacing));
|
|
TmpInst.addOperand(Inst.getOperand(0)); // Vd
|
|
TmpInst.addOperand(Inst.getOperand(2)); // Rn_wb
|
|
TmpInst.addOperand(Inst.getOperand(2)); // Rn
|
|
TmpInst.addOperand(Inst.getOperand(3)); // alignment
|
|
TmpInst.addOperand(Inst.getOperand(4)); // Rm
|
|
TmpInst.addOperand(Inst.getOperand(0)); // Tied operand src (== Vd)
|
|
TmpInst.addOperand(Inst.getOperand(1)); // lane
|
|
TmpInst.addOperand(Inst.getOperand(5)); // CondCode
|
|
TmpInst.addOperand(Inst.getOperand(6));
|
|
Inst = TmpInst;
|
|
return true;
|
|
}
|
|
|
|
case ARM::VLD2LNdWB_register_Asm_8:
|
|
case ARM::VLD2LNdWB_register_Asm_16:
|
|
case ARM::VLD2LNdWB_register_Asm_32:
|
|
case ARM::VLD2LNqWB_register_Asm_16:
|
|
case ARM::VLD2LNqWB_register_Asm_32: {
|
|
MCInst TmpInst;
|
|
// Shuffle the operands around so the lane index operand is in the
|
|
// right place.
|
|
unsigned Spacing;
|
|
TmpInst.setOpcode(getRealVLDOpcode(Inst.getOpcode(), Spacing));
|
|
TmpInst.addOperand(Inst.getOperand(0)); // Vd
|
|
TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
|
|
Spacing));
|
|
TmpInst.addOperand(Inst.getOperand(2)); // Rn_wb
|
|
TmpInst.addOperand(Inst.getOperand(2)); // Rn
|
|
TmpInst.addOperand(Inst.getOperand(3)); // alignment
|
|
TmpInst.addOperand(Inst.getOperand(4)); // Rm
|
|
TmpInst.addOperand(Inst.getOperand(0)); // Tied operand src (== Vd)
|
|
TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
|
|
Spacing));
|
|
TmpInst.addOperand(Inst.getOperand(1)); // lane
|
|
TmpInst.addOperand(Inst.getOperand(5)); // CondCode
|
|
TmpInst.addOperand(Inst.getOperand(6));
|
|
Inst = TmpInst;
|
|
return true;
|
|
}
|
|
|
|
case ARM::VLD3LNdWB_register_Asm_8:
|
|
case ARM::VLD3LNdWB_register_Asm_16:
|
|
case ARM::VLD3LNdWB_register_Asm_32:
|
|
case ARM::VLD3LNqWB_register_Asm_16:
|
|
case ARM::VLD3LNqWB_register_Asm_32: {
|
|
MCInst TmpInst;
|
|
// Shuffle the operands around so the lane index operand is in the
|
|
// right place.
|
|
unsigned Spacing;
|
|
TmpInst.setOpcode(getRealVLDOpcode(Inst.getOpcode(), Spacing));
|
|
TmpInst.addOperand(Inst.getOperand(0)); // Vd
|
|
TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
|
|
Spacing));
|
|
TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
|
|
Spacing * 2));
|
|
TmpInst.addOperand(Inst.getOperand(2)); // Rn_wb
|
|
TmpInst.addOperand(Inst.getOperand(2)); // Rn
|
|
TmpInst.addOperand(Inst.getOperand(3)); // alignment
|
|
TmpInst.addOperand(Inst.getOperand(4)); // Rm
|
|
TmpInst.addOperand(Inst.getOperand(0)); // Tied operand src (== Vd)
|
|
TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
|
|
Spacing));
|
|
TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
|
|
Spacing * 2));
|
|
TmpInst.addOperand(Inst.getOperand(1)); // lane
|
|
TmpInst.addOperand(Inst.getOperand(5)); // CondCode
|
|
TmpInst.addOperand(Inst.getOperand(6));
|
|
Inst = TmpInst;
|
|
return true;
|
|
}
|
|
|
|
case ARM::VLD4LNdWB_register_Asm_8:
|
|
case ARM::VLD4LNdWB_register_Asm_16:
|
|
case ARM::VLD4LNdWB_register_Asm_32:
|
|
case ARM::VLD4LNqWB_register_Asm_16:
|
|
case ARM::VLD4LNqWB_register_Asm_32: {
|
|
MCInst TmpInst;
|
|
// Shuffle the operands around so the lane index operand is in the
|
|
// right place.
|
|
unsigned Spacing;
|
|
TmpInst.setOpcode(getRealVLDOpcode(Inst.getOpcode(), Spacing));
|
|
TmpInst.addOperand(Inst.getOperand(0)); // Vd
|
|
TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
|
|
Spacing));
|
|
TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
|
|
Spacing * 2));
|
|
TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
|
|
Spacing * 3));
|
|
TmpInst.addOperand(Inst.getOperand(2)); // Rn_wb
|
|
TmpInst.addOperand(Inst.getOperand(2)); // Rn
|
|
TmpInst.addOperand(Inst.getOperand(3)); // alignment
|
|
TmpInst.addOperand(Inst.getOperand(4)); // Rm
|
|
TmpInst.addOperand(Inst.getOperand(0)); // Tied operand src (== Vd)
|
|
TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
|
|
Spacing));
|
|
TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
|
|
Spacing * 2));
|
|
TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
|
|
Spacing * 3));
|
|
TmpInst.addOperand(Inst.getOperand(1)); // lane
|
|
TmpInst.addOperand(Inst.getOperand(5)); // CondCode
|
|
TmpInst.addOperand(Inst.getOperand(6));
|
|
Inst = TmpInst;
|
|
return true;
|
|
}
|
|
|
|
case ARM::VLD1LNdWB_fixed_Asm_8:
|
|
case ARM::VLD1LNdWB_fixed_Asm_16:
|
|
case ARM::VLD1LNdWB_fixed_Asm_32: {
|
|
MCInst TmpInst;
|
|
// Shuffle the operands around so the lane index operand is in the
|
|
// right place.
|
|
unsigned Spacing;
|
|
TmpInst.setOpcode(getRealVLDOpcode(Inst.getOpcode(), Spacing));
|
|
TmpInst.addOperand(Inst.getOperand(0)); // Vd
|
|
TmpInst.addOperand(Inst.getOperand(2)); // Rn_wb
|
|
TmpInst.addOperand(Inst.getOperand(2)); // Rn
|
|
TmpInst.addOperand(Inst.getOperand(3)); // alignment
|
|
TmpInst.addOperand(MCOperand::CreateReg(0)); // Rm
|
|
TmpInst.addOperand(Inst.getOperand(0)); // Tied operand src (== Vd)
|
|
TmpInst.addOperand(Inst.getOperand(1)); // lane
|
|
TmpInst.addOperand(Inst.getOperand(4)); // CondCode
|
|
TmpInst.addOperand(Inst.getOperand(5));
|
|
Inst = TmpInst;
|
|
return true;
|
|
}
|
|
|
|
case ARM::VLD2LNdWB_fixed_Asm_8:
|
|
case ARM::VLD2LNdWB_fixed_Asm_16:
|
|
case ARM::VLD2LNdWB_fixed_Asm_32:
|
|
case ARM::VLD2LNqWB_fixed_Asm_16:
|
|
case ARM::VLD2LNqWB_fixed_Asm_32: {
|
|
MCInst TmpInst;
|
|
// Shuffle the operands around so the lane index operand is in the
|
|
// right place.
|
|
unsigned Spacing;
|
|
TmpInst.setOpcode(getRealVLDOpcode(Inst.getOpcode(), Spacing));
|
|
TmpInst.addOperand(Inst.getOperand(0)); // Vd
|
|
TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
|
|
Spacing));
|
|
TmpInst.addOperand(Inst.getOperand(2)); // Rn_wb
|
|
TmpInst.addOperand(Inst.getOperand(2)); // Rn
|
|
TmpInst.addOperand(Inst.getOperand(3)); // alignment
|
|
TmpInst.addOperand(MCOperand::CreateReg(0)); // Rm
|
|
TmpInst.addOperand(Inst.getOperand(0)); // Tied operand src (== Vd)
|
|
TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
|
|
Spacing));
|
|
TmpInst.addOperand(Inst.getOperand(1)); // lane
|
|
TmpInst.addOperand(Inst.getOperand(4)); // CondCode
|
|
TmpInst.addOperand(Inst.getOperand(5));
|
|
Inst = TmpInst;
|
|
return true;
|
|
}
|
|
|
|
case ARM::VLD3LNdWB_fixed_Asm_8:
|
|
case ARM::VLD3LNdWB_fixed_Asm_16:
|
|
case ARM::VLD3LNdWB_fixed_Asm_32:
|
|
case ARM::VLD3LNqWB_fixed_Asm_16:
|
|
case ARM::VLD3LNqWB_fixed_Asm_32: {
|
|
MCInst TmpInst;
|
|
// Shuffle the operands around so the lane index operand is in the
|
|
// right place.
|
|
unsigned Spacing;
|
|
TmpInst.setOpcode(getRealVLDOpcode(Inst.getOpcode(), Spacing));
|
|
TmpInst.addOperand(Inst.getOperand(0)); // Vd
|
|
TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
|
|
Spacing));
|
|
TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
|
|
Spacing * 2));
|
|
TmpInst.addOperand(Inst.getOperand(2)); // Rn_wb
|
|
TmpInst.addOperand(Inst.getOperand(2)); // Rn
|
|
TmpInst.addOperand(Inst.getOperand(3)); // alignment
|
|
TmpInst.addOperand(MCOperand::CreateReg(0)); // Rm
|
|
TmpInst.addOperand(Inst.getOperand(0)); // Tied operand src (== Vd)
|
|
TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
|
|
Spacing));
|
|
TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
|
|
Spacing * 2));
|
|
TmpInst.addOperand(Inst.getOperand(1)); // lane
|
|
TmpInst.addOperand(Inst.getOperand(4)); // CondCode
|
|
TmpInst.addOperand(Inst.getOperand(5));
|
|
Inst = TmpInst;
|
|
return true;
|
|
}
|
|
|
|
case ARM::VLD4LNdWB_fixed_Asm_8:
|
|
case ARM::VLD4LNdWB_fixed_Asm_16:
|
|
case ARM::VLD4LNdWB_fixed_Asm_32:
|
|
case ARM::VLD4LNqWB_fixed_Asm_16:
|
|
case ARM::VLD4LNqWB_fixed_Asm_32: {
|
|
MCInst TmpInst;
|
|
// Shuffle the operands around so the lane index operand is in the
|
|
// right place.
|
|
unsigned Spacing;
|
|
TmpInst.setOpcode(getRealVLDOpcode(Inst.getOpcode(), Spacing));
|
|
TmpInst.addOperand(Inst.getOperand(0)); // Vd
|
|
TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
|
|
Spacing));
|
|
TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
|
|
Spacing * 2));
|
|
TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
|
|
Spacing * 3));
|
|
TmpInst.addOperand(Inst.getOperand(2)); // Rn_wb
|
|
TmpInst.addOperand(Inst.getOperand(2)); // Rn
|
|
TmpInst.addOperand(Inst.getOperand(3)); // alignment
|
|
TmpInst.addOperand(MCOperand::CreateReg(0)); // Rm
|
|
TmpInst.addOperand(Inst.getOperand(0)); // Tied operand src (== Vd)
|
|
TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
|
|
Spacing));
|
|
TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
|
|
Spacing * 2));
|
|
TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
|
|
Spacing * 3));
|
|
TmpInst.addOperand(Inst.getOperand(1)); // lane
|
|
TmpInst.addOperand(Inst.getOperand(4)); // CondCode
|
|
TmpInst.addOperand(Inst.getOperand(5));
|
|
Inst = TmpInst;
|
|
return true;
|
|
}
|
|
|
|
case ARM::VLD1LNdAsm_8:
|
|
case ARM::VLD1LNdAsm_16:
|
|
case ARM::VLD1LNdAsm_32: {
|
|
MCInst TmpInst;
|
|
// Shuffle the operands around so the lane index operand is in the
|
|
// right place.
|
|
unsigned Spacing;
|
|
TmpInst.setOpcode(getRealVLDOpcode(Inst.getOpcode(), Spacing));
|
|
TmpInst.addOperand(Inst.getOperand(0)); // Vd
|
|
TmpInst.addOperand(Inst.getOperand(2)); // Rn
|
|
TmpInst.addOperand(Inst.getOperand(3)); // alignment
|
|
TmpInst.addOperand(Inst.getOperand(0)); // Tied operand src (== Vd)
|
|
TmpInst.addOperand(Inst.getOperand(1)); // lane
|
|
TmpInst.addOperand(Inst.getOperand(4)); // CondCode
|
|
TmpInst.addOperand(Inst.getOperand(5));
|
|
Inst = TmpInst;
|
|
return true;
|
|
}
|
|
|
|
case ARM::VLD2LNdAsm_8:
|
|
case ARM::VLD2LNdAsm_16:
|
|
case ARM::VLD2LNdAsm_32:
|
|
case ARM::VLD2LNqAsm_16:
|
|
case ARM::VLD2LNqAsm_32: {
|
|
MCInst TmpInst;
|
|
// Shuffle the operands around so the lane index operand is in the
|
|
// right place.
|
|
unsigned Spacing;
|
|
TmpInst.setOpcode(getRealVLDOpcode(Inst.getOpcode(), Spacing));
|
|
TmpInst.addOperand(Inst.getOperand(0)); // Vd
|
|
TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
|
|
Spacing));
|
|
TmpInst.addOperand(Inst.getOperand(2)); // Rn
|
|
TmpInst.addOperand(Inst.getOperand(3)); // alignment
|
|
TmpInst.addOperand(Inst.getOperand(0)); // Tied operand src (== Vd)
|
|
TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
|
|
Spacing));
|
|
TmpInst.addOperand(Inst.getOperand(1)); // lane
|
|
TmpInst.addOperand(Inst.getOperand(4)); // CondCode
|
|
TmpInst.addOperand(Inst.getOperand(5));
|
|
Inst = TmpInst;
|
|
return true;
|
|
}
|
|
|
|
case ARM::VLD3LNdAsm_8:
|
|
case ARM::VLD3LNdAsm_16:
|
|
case ARM::VLD3LNdAsm_32:
|
|
case ARM::VLD3LNqAsm_16:
|
|
case ARM::VLD3LNqAsm_32: {
|
|
MCInst TmpInst;
|
|
// Shuffle the operands around so the lane index operand is in the
|
|
// right place.
|
|
unsigned Spacing;
|
|
TmpInst.setOpcode(getRealVLDOpcode(Inst.getOpcode(), Spacing));
|
|
TmpInst.addOperand(Inst.getOperand(0)); // Vd
|
|
TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
|
|
Spacing));
|
|
TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
|
|
Spacing * 2));
|
|
TmpInst.addOperand(Inst.getOperand(2)); // Rn
|
|
TmpInst.addOperand(Inst.getOperand(3)); // alignment
|
|
TmpInst.addOperand(Inst.getOperand(0)); // Tied operand src (== Vd)
|
|
TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
|
|
Spacing));
|
|
TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
|
|
Spacing * 2));
|
|
TmpInst.addOperand(Inst.getOperand(1)); // lane
|
|
TmpInst.addOperand(Inst.getOperand(4)); // CondCode
|
|
TmpInst.addOperand(Inst.getOperand(5));
|
|
Inst = TmpInst;
|
|
return true;
|
|
}
|
|
|
|
case ARM::VLD4LNdAsm_8:
|
|
case ARM::VLD4LNdAsm_16:
|
|
case ARM::VLD4LNdAsm_32:
|
|
case ARM::VLD4LNqAsm_16:
|
|
case ARM::VLD4LNqAsm_32: {
|
|
MCInst TmpInst;
|
|
// Shuffle the operands around so the lane index operand is in the
|
|
// right place.
|
|
unsigned Spacing;
|
|
TmpInst.setOpcode(getRealVLDOpcode(Inst.getOpcode(), Spacing));
|
|
TmpInst.addOperand(Inst.getOperand(0)); // Vd
|
|
TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
|
|
Spacing));
|
|
TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
|
|
Spacing * 2));
|
|
TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
|
|
Spacing * 3));
|
|
TmpInst.addOperand(Inst.getOperand(2)); // Rn
|
|
TmpInst.addOperand(Inst.getOperand(3)); // alignment
|
|
TmpInst.addOperand(Inst.getOperand(0)); // Tied operand src (== Vd)
|
|
TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
|
|
Spacing));
|
|
TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
|
|
Spacing * 2));
|
|
TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
|
|
Spacing * 3));
|
|
TmpInst.addOperand(Inst.getOperand(1)); // lane
|
|
TmpInst.addOperand(Inst.getOperand(4)); // CondCode
|
|
TmpInst.addOperand(Inst.getOperand(5));
|
|
Inst = TmpInst;
|
|
return true;
|
|
}
|
|
|
|
// VLD3DUP single 3-element structure to all lanes instructions.
|
|
case ARM::VLD3DUPdAsm_8:
|
|
case ARM::VLD3DUPdAsm_16:
|
|
case ARM::VLD3DUPdAsm_32:
|
|
case ARM::VLD3DUPqAsm_8:
|
|
case ARM::VLD3DUPqAsm_16:
|
|
case ARM::VLD3DUPqAsm_32: {
|
|
MCInst TmpInst;
|
|
unsigned Spacing;
|
|
TmpInst.setOpcode(getRealVLDOpcode(Inst.getOpcode(), Spacing));
|
|
TmpInst.addOperand(Inst.getOperand(0)); // Vd
|
|
TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
|
|
Spacing));
|
|
TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
|
|
Spacing * 2));
|
|
TmpInst.addOperand(Inst.getOperand(1)); // Rn
|
|
TmpInst.addOperand(Inst.getOperand(2)); // alignment
|
|
TmpInst.addOperand(Inst.getOperand(3)); // CondCode
|
|
TmpInst.addOperand(Inst.getOperand(4));
|
|
Inst = TmpInst;
|
|
return true;
|
|
}
|
|
|
|
case ARM::VLD3DUPdWB_fixed_Asm_8:
|
|
case ARM::VLD3DUPdWB_fixed_Asm_16:
|
|
case ARM::VLD3DUPdWB_fixed_Asm_32:
|
|
case ARM::VLD3DUPqWB_fixed_Asm_8:
|
|
case ARM::VLD3DUPqWB_fixed_Asm_16:
|
|
case ARM::VLD3DUPqWB_fixed_Asm_32: {
|
|
MCInst TmpInst;
|
|
unsigned Spacing;
|
|
TmpInst.setOpcode(getRealVLDOpcode(Inst.getOpcode(), Spacing));
|
|
TmpInst.addOperand(Inst.getOperand(0)); // Vd
|
|
TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
|
|
Spacing));
|
|
TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
|
|
Spacing * 2));
|
|
TmpInst.addOperand(Inst.getOperand(1)); // Rn
|
|
TmpInst.addOperand(Inst.getOperand(1)); // Rn_wb == tied Rn
|
|
TmpInst.addOperand(Inst.getOperand(2)); // alignment
|
|
TmpInst.addOperand(MCOperand::CreateReg(0)); // Rm
|
|
TmpInst.addOperand(Inst.getOperand(3)); // CondCode
|
|
TmpInst.addOperand(Inst.getOperand(4));
|
|
Inst = TmpInst;
|
|
return true;
|
|
}
|
|
|
|
case ARM::VLD3DUPdWB_register_Asm_8:
|
|
case ARM::VLD3DUPdWB_register_Asm_16:
|
|
case ARM::VLD3DUPdWB_register_Asm_32:
|
|
case ARM::VLD3DUPqWB_register_Asm_8:
|
|
case ARM::VLD3DUPqWB_register_Asm_16:
|
|
case ARM::VLD3DUPqWB_register_Asm_32: {
|
|
MCInst TmpInst;
|
|
unsigned Spacing;
|
|
TmpInst.setOpcode(getRealVLDOpcode(Inst.getOpcode(), Spacing));
|
|
TmpInst.addOperand(Inst.getOperand(0)); // Vd
|
|
TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
|
|
Spacing));
|
|
TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
|
|
Spacing * 2));
|
|
TmpInst.addOperand(Inst.getOperand(1)); // Rn
|
|
TmpInst.addOperand(Inst.getOperand(1)); // Rn_wb == tied Rn
|
|
TmpInst.addOperand(Inst.getOperand(2)); // alignment
|
|
TmpInst.addOperand(Inst.getOperand(3)); // Rm
|
|
TmpInst.addOperand(Inst.getOperand(4)); // CondCode
|
|
TmpInst.addOperand(Inst.getOperand(5));
|
|
Inst = TmpInst;
|
|
return true;
|
|
}
|
|
|
|
// VLD3 multiple 3-element structure instructions.
|
|
case ARM::VLD3dAsm_8:
|
|
case ARM::VLD3dAsm_16:
|
|
case ARM::VLD3dAsm_32:
|
|
case ARM::VLD3qAsm_8:
|
|
case ARM::VLD3qAsm_16:
|
|
case ARM::VLD3qAsm_32: {
|
|
MCInst TmpInst;
|
|
unsigned Spacing;
|
|
TmpInst.setOpcode(getRealVLDOpcode(Inst.getOpcode(), Spacing));
|
|
TmpInst.addOperand(Inst.getOperand(0)); // Vd
|
|
TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
|
|
Spacing));
|
|
TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
|
|
Spacing * 2));
|
|
TmpInst.addOperand(Inst.getOperand(1)); // Rn
|
|
TmpInst.addOperand(Inst.getOperand(2)); // alignment
|
|
TmpInst.addOperand(Inst.getOperand(3)); // CondCode
|
|
TmpInst.addOperand(Inst.getOperand(4));
|
|
Inst = TmpInst;
|
|
return true;
|
|
}
|
|
|
|
case ARM::VLD3dWB_fixed_Asm_8:
|
|
case ARM::VLD3dWB_fixed_Asm_16:
|
|
case ARM::VLD3dWB_fixed_Asm_32:
|
|
case ARM::VLD3qWB_fixed_Asm_8:
|
|
case ARM::VLD3qWB_fixed_Asm_16:
|
|
case ARM::VLD3qWB_fixed_Asm_32: {
|
|
MCInst TmpInst;
|
|
unsigned Spacing;
|
|
TmpInst.setOpcode(getRealVLDOpcode(Inst.getOpcode(), Spacing));
|
|
TmpInst.addOperand(Inst.getOperand(0)); // Vd
|
|
TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
|
|
Spacing));
|
|
TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
|
|
Spacing * 2));
|
|
TmpInst.addOperand(Inst.getOperand(1)); // Rn
|
|
TmpInst.addOperand(Inst.getOperand(1)); // Rn_wb == tied Rn
|
|
TmpInst.addOperand(Inst.getOperand(2)); // alignment
|
|
TmpInst.addOperand(MCOperand::CreateReg(0)); // Rm
|
|
TmpInst.addOperand(Inst.getOperand(3)); // CondCode
|
|
TmpInst.addOperand(Inst.getOperand(4));
|
|
Inst = TmpInst;
|
|
return true;
|
|
}
|
|
|
|
case ARM::VLD3dWB_register_Asm_8:
|
|
case ARM::VLD3dWB_register_Asm_16:
|
|
case ARM::VLD3dWB_register_Asm_32:
|
|
case ARM::VLD3qWB_register_Asm_8:
|
|
case ARM::VLD3qWB_register_Asm_16:
|
|
case ARM::VLD3qWB_register_Asm_32: {
|
|
MCInst TmpInst;
|
|
unsigned Spacing;
|
|
TmpInst.setOpcode(getRealVLDOpcode(Inst.getOpcode(), Spacing));
|
|
TmpInst.addOperand(Inst.getOperand(0)); // Vd
|
|
TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
|
|
Spacing));
|
|
TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
|
|
Spacing * 2));
|
|
TmpInst.addOperand(Inst.getOperand(1)); // Rn
|
|
TmpInst.addOperand(Inst.getOperand(1)); // Rn_wb == tied Rn
|
|
TmpInst.addOperand(Inst.getOperand(2)); // alignment
|
|
TmpInst.addOperand(Inst.getOperand(3)); // Rm
|
|
TmpInst.addOperand(Inst.getOperand(4)); // CondCode
|
|
TmpInst.addOperand(Inst.getOperand(5));
|
|
Inst = TmpInst;
|
|
return true;
|
|
}
|
|
|
|
// VLD4DUP single 3-element structure to all lanes instructions.
|
|
case ARM::VLD4DUPdAsm_8:
|
|
case ARM::VLD4DUPdAsm_16:
|
|
case ARM::VLD4DUPdAsm_32:
|
|
case ARM::VLD4DUPqAsm_8:
|
|
case ARM::VLD4DUPqAsm_16:
|
|
case ARM::VLD4DUPqAsm_32: {
|
|
MCInst TmpInst;
|
|
unsigned Spacing;
|
|
TmpInst.setOpcode(getRealVLDOpcode(Inst.getOpcode(), Spacing));
|
|
TmpInst.addOperand(Inst.getOperand(0)); // Vd
|
|
TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
|
|
Spacing));
|
|
TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
|
|
Spacing * 2));
|
|
TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
|
|
Spacing * 3));
|
|
TmpInst.addOperand(Inst.getOperand(1)); // Rn
|
|
TmpInst.addOperand(Inst.getOperand(2)); // alignment
|
|
TmpInst.addOperand(Inst.getOperand(3)); // CondCode
|
|
TmpInst.addOperand(Inst.getOperand(4));
|
|
Inst = TmpInst;
|
|
return true;
|
|
}
|
|
|
|
case ARM::VLD4DUPdWB_fixed_Asm_8:
|
|
case ARM::VLD4DUPdWB_fixed_Asm_16:
|
|
case ARM::VLD4DUPdWB_fixed_Asm_32:
|
|
case ARM::VLD4DUPqWB_fixed_Asm_8:
|
|
case ARM::VLD4DUPqWB_fixed_Asm_16:
|
|
case ARM::VLD4DUPqWB_fixed_Asm_32: {
|
|
MCInst TmpInst;
|
|
unsigned Spacing;
|
|
TmpInst.setOpcode(getRealVLDOpcode(Inst.getOpcode(), Spacing));
|
|
TmpInst.addOperand(Inst.getOperand(0)); // Vd
|
|
TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
|
|
Spacing));
|
|
TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
|
|
Spacing * 2));
|
|
TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
|
|
Spacing * 3));
|
|
TmpInst.addOperand(Inst.getOperand(1)); // Rn
|
|
TmpInst.addOperand(Inst.getOperand(1)); // Rn_wb == tied Rn
|
|
TmpInst.addOperand(Inst.getOperand(2)); // alignment
|
|
TmpInst.addOperand(MCOperand::CreateReg(0)); // Rm
|
|
TmpInst.addOperand(Inst.getOperand(3)); // CondCode
|
|
TmpInst.addOperand(Inst.getOperand(4));
|
|
Inst = TmpInst;
|
|
return true;
|
|
}
|
|
|
|
case ARM::VLD4DUPdWB_register_Asm_8:
|
|
case ARM::VLD4DUPdWB_register_Asm_16:
|
|
case ARM::VLD4DUPdWB_register_Asm_32:
|
|
case ARM::VLD4DUPqWB_register_Asm_8:
|
|
case ARM::VLD4DUPqWB_register_Asm_16:
|
|
case ARM::VLD4DUPqWB_register_Asm_32: {
|
|
MCInst TmpInst;
|
|
unsigned Spacing;
|
|
TmpInst.setOpcode(getRealVLDOpcode(Inst.getOpcode(), Spacing));
|
|
TmpInst.addOperand(Inst.getOperand(0)); // Vd
|
|
TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
|
|
Spacing));
|
|
TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
|
|
Spacing * 2));
|
|
TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
|
|
Spacing * 3));
|
|
TmpInst.addOperand(Inst.getOperand(1)); // Rn
|
|
TmpInst.addOperand(Inst.getOperand(1)); // Rn_wb == tied Rn
|
|
TmpInst.addOperand(Inst.getOperand(2)); // alignment
|
|
TmpInst.addOperand(Inst.getOperand(3)); // Rm
|
|
TmpInst.addOperand(Inst.getOperand(4)); // CondCode
|
|
TmpInst.addOperand(Inst.getOperand(5));
|
|
Inst = TmpInst;
|
|
return true;
|
|
}
|
|
|
|
// VLD4 multiple 4-element structure instructions.
|
|
case ARM::VLD4dAsm_8:
|
|
case ARM::VLD4dAsm_16:
|
|
case ARM::VLD4dAsm_32:
|
|
case ARM::VLD4qAsm_8:
|
|
case ARM::VLD4qAsm_16:
|
|
case ARM::VLD4qAsm_32: {
|
|
MCInst TmpInst;
|
|
unsigned Spacing;
|
|
TmpInst.setOpcode(getRealVLDOpcode(Inst.getOpcode(), Spacing));
|
|
TmpInst.addOperand(Inst.getOperand(0)); // Vd
|
|
TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
|
|
Spacing));
|
|
TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
|
|
Spacing * 2));
|
|
TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
|
|
Spacing * 3));
|
|
TmpInst.addOperand(Inst.getOperand(1)); // Rn
|
|
TmpInst.addOperand(Inst.getOperand(2)); // alignment
|
|
TmpInst.addOperand(Inst.getOperand(3)); // CondCode
|
|
TmpInst.addOperand(Inst.getOperand(4));
|
|
Inst = TmpInst;
|
|
return true;
|
|
}
|
|
|
|
case ARM::VLD4dWB_fixed_Asm_8:
|
|
case ARM::VLD4dWB_fixed_Asm_16:
|
|
case ARM::VLD4dWB_fixed_Asm_32:
|
|
case ARM::VLD4qWB_fixed_Asm_8:
|
|
case ARM::VLD4qWB_fixed_Asm_16:
|
|
case ARM::VLD4qWB_fixed_Asm_32: {
|
|
MCInst TmpInst;
|
|
unsigned Spacing;
|
|
TmpInst.setOpcode(getRealVLDOpcode(Inst.getOpcode(), Spacing));
|
|
TmpInst.addOperand(Inst.getOperand(0)); // Vd
|
|
TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
|
|
Spacing));
|
|
TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
|
|
Spacing * 2));
|
|
TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
|
|
Spacing * 3));
|
|
TmpInst.addOperand(Inst.getOperand(1)); // Rn
|
|
TmpInst.addOperand(Inst.getOperand(1)); // Rn_wb == tied Rn
|
|
TmpInst.addOperand(Inst.getOperand(2)); // alignment
|
|
TmpInst.addOperand(MCOperand::CreateReg(0)); // Rm
|
|
TmpInst.addOperand(Inst.getOperand(3)); // CondCode
|
|
TmpInst.addOperand(Inst.getOperand(4));
|
|
Inst = TmpInst;
|
|
return true;
|
|
}
|
|
|
|
case ARM::VLD4dWB_register_Asm_8:
|
|
case ARM::VLD4dWB_register_Asm_16:
|
|
case ARM::VLD4dWB_register_Asm_32:
|
|
case ARM::VLD4qWB_register_Asm_8:
|
|
case ARM::VLD4qWB_register_Asm_16:
|
|
case ARM::VLD4qWB_register_Asm_32: {
|
|
MCInst TmpInst;
|
|
unsigned Spacing;
|
|
TmpInst.setOpcode(getRealVLDOpcode(Inst.getOpcode(), Spacing));
|
|
TmpInst.addOperand(Inst.getOperand(0)); // Vd
|
|
TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
|
|
Spacing));
|
|
TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
|
|
Spacing * 2));
|
|
TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
|
|
Spacing * 3));
|
|
TmpInst.addOperand(Inst.getOperand(1)); // Rn
|
|
TmpInst.addOperand(Inst.getOperand(1)); // Rn_wb == tied Rn
|
|
TmpInst.addOperand(Inst.getOperand(2)); // alignment
|
|
TmpInst.addOperand(Inst.getOperand(3)); // Rm
|
|
TmpInst.addOperand(Inst.getOperand(4)); // CondCode
|
|
TmpInst.addOperand(Inst.getOperand(5));
|
|
Inst = TmpInst;
|
|
return true;
|
|
}
|
|
|
|
// VST3 multiple 3-element structure instructions.
|
|
case ARM::VST3dAsm_8:
|
|
case ARM::VST3dAsm_16:
|
|
case ARM::VST3dAsm_32:
|
|
case ARM::VST3qAsm_8:
|
|
case ARM::VST3qAsm_16:
|
|
case ARM::VST3qAsm_32: {
|
|
MCInst TmpInst;
|
|
unsigned Spacing;
|
|
TmpInst.setOpcode(getRealVSTOpcode(Inst.getOpcode(), Spacing));
|
|
TmpInst.addOperand(Inst.getOperand(1)); // Rn
|
|
TmpInst.addOperand(Inst.getOperand(2)); // alignment
|
|
TmpInst.addOperand(Inst.getOperand(0)); // Vd
|
|
TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
|
|
Spacing));
|
|
TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
|
|
Spacing * 2));
|
|
TmpInst.addOperand(Inst.getOperand(3)); // CondCode
|
|
TmpInst.addOperand(Inst.getOperand(4));
|
|
Inst = TmpInst;
|
|
return true;
|
|
}
|
|
|
|
case ARM::VST3dWB_fixed_Asm_8:
|
|
case ARM::VST3dWB_fixed_Asm_16:
|
|
case ARM::VST3dWB_fixed_Asm_32:
|
|
case ARM::VST3qWB_fixed_Asm_8:
|
|
case ARM::VST3qWB_fixed_Asm_16:
|
|
case ARM::VST3qWB_fixed_Asm_32: {
|
|
MCInst TmpInst;
|
|
unsigned Spacing;
|
|
TmpInst.setOpcode(getRealVSTOpcode(Inst.getOpcode(), Spacing));
|
|
TmpInst.addOperand(Inst.getOperand(1)); // Rn
|
|
TmpInst.addOperand(Inst.getOperand(1)); // Rn_wb == tied Rn
|
|
TmpInst.addOperand(Inst.getOperand(2)); // alignment
|
|
TmpInst.addOperand(MCOperand::CreateReg(0)); // Rm
|
|
TmpInst.addOperand(Inst.getOperand(0)); // Vd
|
|
TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
|
|
Spacing));
|
|
TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
|
|
Spacing * 2));
|
|
TmpInst.addOperand(Inst.getOperand(3)); // CondCode
|
|
TmpInst.addOperand(Inst.getOperand(4));
|
|
Inst = TmpInst;
|
|
return true;
|
|
}
|
|
|
|
case ARM::VST3dWB_register_Asm_8:
|
|
case ARM::VST3dWB_register_Asm_16:
|
|
case ARM::VST3dWB_register_Asm_32:
|
|
case ARM::VST3qWB_register_Asm_8:
|
|
case ARM::VST3qWB_register_Asm_16:
|
|
case ARM::VST3qWB_register_Asm_32: {
|
|
MCInst TmpInst;
|
|
unsigned Spacing;
|
|
TmpInst.setOpcode(getRealVSTOpcode(Inst.getOpcode(), Spacing));
|
|
TmpInst.addOperand(Inst.getOperand(1)); // Rn
|
|
TmpInst.addOperand(Inst.getOperand(1)); // Rn_wb == tied Rn
|
|
TmpInst.addOperand(Inst.getOperand(2)); // alignment
|
|
TmpInst.addOperand(Inst.getOperand(3)); // Rm
|
|
TmpInst.addOperand(Inst.getOperand(0)); // Vd
|
|
TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
|
|
Spacing));
|
|
TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
|
|
Spacing * 2));
|
|
TmpInst.addOperand(Inst.getOperand(4)); // CondCode
|
|
TmpInst.addOperand(Inst.getOperand(5));
|
|
Inst = TmpInst;
|
|
return true;
|
|
}
|
|
|
|
// VST4 multiple 3-element structure instructions.
|
|
case ARM::VST4dAsm_8:
|
|
case ARM::VST4dAsm_16:
|
|
case ARM::VST4dAsm_32:
|
|
case ARM::VST4qAsm_8:
|
|
case ARM::VST4qAsm_16:
|
|
case ARM::VST4qAsm_32: {
|
|
MCInst TmpInst;
|
|
unsigned Spacing;
|
|
TmpInst.setOpcode(getRealVSTOpcode(Inst.getOpcode(), Spacing));
|
|
TmpInst.addOperand(Inst.getOperand(1)); // Rn
|
|
TmpInst.addOperand(Inst.getOperand(2)); // alignment
|
|
TmpInst.addOperand(Inst.getOperand(0)); // Vd
|
|
TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
|
|
Spacing));
|
|
TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
|
|
Spacing * 2));
|
|
TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
|
|
Spacing * 3));
|
|
TmpInst.addOperand(Inst.getOperand(3)); // CondCode
|
|
TmpInst.addOperand(Inst.getOperand(4));
|
|
Inst = TmpInst;
|
|
return true;
|
|
}
|
|
|
|
case ARM::VST4dWB_fixed_Asm_8:
|
|
case ARM::VST4dWB_fixed_Asm_16:
|
|
case ARM::VST4dWB_fixed_Asm_32:
|
|
case ARM::VST4qWB_fixed_Asm_8:
|
|
case ARM::VST4qWB_fixed_Asm_16:
|
|
case ARM::VST4qWB_fixed_Asm_32: {
|
|
MCInst TmpInst;
|
|
unsigned Spacing;
|
|
TmpInst.setOpcode(getRealVSTOpcode(Inst.getOpcode(), Spacing));
|
|
TmpInst.addOperand(Inst.getOperand(1)); // Rn
|
|
TmpInst.addOperand(Inst.getOperand(1)); // Rn_wb == tied Rn
|
|
TmpInst.addOperand(Inst.getOperand(2)); // alignment
|
|
TmpInst.addOperand(MCOperand::CreateReg(0)); // Rm
|
|
TmpInst.addOperand(Inst.getOperand(0)); // Vd
|
|
TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
|
|
Spacing));
|
|
TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
|
|
Spacing * 2));
|
|
TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
|
|
Spacing * 3));
|
|
TmpInst.addOperand(Inst.getOperand(3)); // CondCode
|
|
TmpInst.addOperand(Inst.getOperand(4));
|
|
Inst = TmpInst;
|
|
return true;
|
|
}
|
|
|
|
case ARM::VST4dWB_register_Asm_8:
|
|
case ARM::VST4dWB_register_Asm_16:
|
|
case ARM::VST4dWB_register_Asm_32:
|
|
case ARM::VST4qWB_register_Asm_8:
|
|
case ARM::VST4qWB_register_Asm_16:
|
|
case ARM::VST4qWB_register_Asm_32: {
|
|
MCInst TmpInst;
|
|
unsigned Spacing;
|
|
TmpInst.setOpcode(getRealVSTOpcode(Inst.getOpcode(), Spacing));
|
|
TmpInst.addOperand(Inst.getOperand(1)); // Rn
|
|
TmpInst.addOperand(Inst.getOperand(1)); // Rn_wb == tied Rn
|
|
TmpInst.addOperand(Inst.getOperand(2)); // alignment
|
|
TmpInst.addOperand(Inst.getOperand(3)); // Rm
|
|
TmpInst.addOperand(Inst.getOperand(0)); // Vd
|
|
TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
|
|
Spacing));
|
|
TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
|
|
Spacing * 2));
|
|
TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
|
|
Spacing * 3));
|
|
TmpInst.addOperand(Inst.getOperand(4)); // CondCode
|
|
TmpInst.addOperand(Inst.getOperand(5));
|
|
Inst = TmpInst;
|
|
return true;
|
|
}
|
|
|
|
// Handle encoding choice for the shift-immediate instructions.
|
|
case ARM::t2LSLri:
|
|
case ARM::t2LSRri:
|
|
case ARM::t2ASRri: {
|
|
if (isARMLowRegister(Inst.getOperand(0).getReg()) &&
|
|
Inst.getOperand(0).getReg() == Inst.getOperand(1).getReg() &&
|
|
Inst.getOperand(5).getReg() == (inITBlock() ? 0 : ARM::CPSR) &&
|
|
!(static_cast<ARMOperand*>(Operands[3])->isToken() &&
|
|
static_cast<ARMOperand*>(Operands[3])->getToken() == ".w")) {
|
|
unsigned NewOpc;
|
|
switch (Inst.getOpcode()) {
|
|
default: llvm_unreachable("unexpected opcode");
|
|
case ARM::t2LSLri: NewOpc = ARM::tLSLri; break;
|
|
case ARM::t2LSRri: NewOpc = ARM::tLSRri; break;
|
|
case ARM::t2ASRri: NewOpc = ARM::tASRri; break;
|
|
}
|
|
// The Thumb1 operands aren't in the same order. Awesome, eh?
|
|
MCInst TmpInst;
|
|
TmpInst.setOpcode(NewOpc);
|
|
TmpInst.addOperand(Inst.getOperand(0));
|
|
TmpInst.addOperand(Inst.getOperand(5));
|
|
TmpInst.addOperand(Inst.getOperand(1));
|
|
TmpInst.addOperand(Inst.getOperand(2));
|
|
TmpInst.addOperand(Inst.getOperand(3));
|
|
TmpInst.addOperand(Inst.getOperand(4));
|
|
Inst = TmpInst;
|
|
return true;
|
|
}
|
|
return false;
|
|
}
|
|
|
|
// Handle the Thumb2 mode MOV complex aliases.
|
|
case ARM::t2MOVsr:
|
|
case ARM::t2MOVSsr: {
|
|
// Which instruction to expand to depends on the CCOut operand and
|
|
// whether we're in an IT block if the register operands are low
|
|
// registers.
|
|
bool isNarrow = false;
|
|
if (isARMLowRegister(Inst.getOperand(0).getReg()) &&
|
|
isARMLowRegister(Inst.getOperand(1).getReg()) &&
|
|
isARMLowRegister(Inst.getOperand(2).getReg()) &&
|
|
Inst.getOperand(0).getReg() == Inst.getOperand(1).getReg() &&
|
|
inITBlock() == (Inst.getOpcode() == ARM::t2MOVsr))
|
|
isNarrow = true;
|
|
MCInst TmpInst;
|
|
unsigned newOpc;
|
|
switch(ARM_AM::getSORegShOp(Inst.getOperand(3).getImm())) {
|
|
default: llvm_unreachable("unexpected opcode!");
|
|
case ARM_AM::asr: newOpc = isNarrow ? ARM::tASRrr : ARM::t2ASRrr; break;
|
|
case ARM_AM::lsr: newOpc = isNarrow ? ARM::tLSRrr : ARM::t2LSRrr; break;
|
|
case ARM_AM::lsl: newOpc = isNarrow ? ARM::tLSLrr : ARM::t2LSLrr; break;
|
|
case ARM_AM::ror: newOpc = isNarrow ? ARM::tROR : ARM::t2RORrr; break;
|
|
}
|
|
TmpInst.setOpcode(newOpc);
|
|
TmpInst.addOperand(Inst.getOperand(0)); // Rd
|
|
if (isNarrow)
|
|
TmpInst.addOperand(MCOperand::CreateReg(
|
|
Inst.getOpcode() == ARM::t2MOVSsr ? ARM::CPSR : 0));
|
|
TmpInst.addOperand(Inst.getOperand(1)); // Rn
|
|
TmpInst.addOperand(Inst.getOperand(2)); // Rm
|
|
TmpInst.addOperand(Inst.getOperand(4)); // CondCode
|
|
TmpInst.addOperand(Inst.getOperand(5));
|
|
if (!isNarrow)
|
|
TmpInst.addOperand(MCOperand::CreateReg(
|
|
Inst.getOpcode() == ARM::t2MOVSsr ? ARM::CPSR : 0));
|
|
Inst = TmpInst;
|
|
return true;
|
|
}
|
|
case ARM::t2MOVsi:
|
|
case ARM::t2MOVSsi: {
|
|
// Which instruction to expand to depends on the CCOut operand and
|
|
// whether we're in an IT block if the register operands are low
|
|
// registers.
|
|
bool isNarrow = false;
|
|
if (isARMLowRegister(Inst.getOperand(0).getReg()) &&
|
|
isARMLowRegister(Inst.getOperand(1).getReg()) &&
|
|
inITBlock() == (Inst.getOpcode() == ARM::t2MOVsi))
|
|
isNarrow = true;
|
|
MCInst TmpInst;
|
|
unsigned newOpc;
|
|
switch(ARM_AM::getSORegShOp(Inst.getOperand(2).getImm())) {
|
|
default: llvm_unreachable("unexpected opcode!");
|
|
case ARM_AM::asr: newOpc = isNarrow ? ARM::tASRri : ARM::t2ASRri; break;
|
|
case ARM_AM::lsr: newOpc = isNarrow ? ARM::tLSRri : ARM::t2LSRri; break;
|
|
case ARM_AM::lsl: newOpc = isNarrow ? ARM::tLSLri : ARM::t2LSLri; break;
|
|
case ARM_AM::ror: newOpc = ARM::t2RORri; isNarrow = false; break;
|
|
case ARM_AM::rrx: isNarrow = false; newOpc = ARM::t2RRX; break;
|
|
}
|
|
unsigned Amount = ARM_AM::getSORegOffset(Inst.getOperand(2).getImm());
|
|
if (Amount == 32) Amount = 0;
|
|
TmpInst.setOpcode(newOpc);
|
|
TmpInst.addOperand(Inst.getOperand(0)); // Rd
|
|
if (isNarrow)
|
|
TmpInst.addOperand(MCOperand::CreateReg(
|
|
Inst.getOpcode() == ARM::t2MOVSsi ? ARM::CPSR : 0));
|
|
TmpInst.addOperand(Inst.getOperand(1)); // Rn
|
|
if (newOpc != ARM::t2RRX)
|
|
TmpInst.addOperand(MCOperand::CreateImm(Amount));
|
|
TmpInst.addOperand(Inst.getOperand(3)); // CondCode
|
|
TmpInst.addOperand(Inst.getOperand(4));
|
|
if (!isNarrow)
|
|
TmpInst.addOperand(MCOperand::CreateReg(
|
|
Inst.getOpcode() == ARM::t2MOVSsi ? ARM::CPSR : 0));
|
|
Inst = TmpInst;
|
|
return true;
|
|
}
|
|
// Handle the ARM mode MOV complex aliases.
|
|
case ARM::ASRr:
|
|
case ARM::LSRr:
|
|
case ARM::LSLr:
|
|
case ARM::RORr: {
|
|
ARM_AM::ShiftOpc ShiftTy;
|
|
switch(Inst.getOpcode()) {
|
|
default: llvm_unreachable("unexpected opcode!");
|
|
case ARM::ASRr: ShiftTy = ARM_AM::asr; break;
|
|
case ARM::LSRr: ShiftTy = ARM_AM::lsr; break;
|
|
case ARM::LSLr: ShiftTy = ARM_AM::lsl; break;
|
|
case ARM::RORr: ShiftTy = ARM_AM::ror; break;
|
|
}
|
|
unsigned Shifter = ARM_AM::getSORegOpc(ShiftTy, 0);
|
|
MCInst TmpInst;
|
|
TmpInst.setOpcode(ARM::MOVsr);
|
|
TmpInst.addOperand(Inst.getOperand(0)); // Rd
|
|
TmpInst.addOperand(Inst.getOperand(1)); // Rn
|
|
TmpInst.addOperand(Inst.getOperand(2)); // Rm
|
|
TmpInst.addOperand(MCOperand::CreateImm(Shifter)); // Shift value and ty
|
|
TmpInst.addOperand(Inst.getOperand(3)); // CondCode
|
|
TmpInst.addOperand(Inst.getOperand(4));
|
|
TmpInst.addOperand(Inst.getOperand(5)); // cc_out
|
|
Inst = TmpInst;
|
|
return true;
|
|
}
|
|
case ARM::ASRi:
|
|
case ARM::LSRi:
|
|
case ARM::LSLi:
|
|
case ARM::RORi: {
|
|
ARM_AM::ShiftOpc ShiftTy;
|
|
switch(Inst.getOpcode()) {
|
|
default: llvm_unreachable("unexpected opcode!");
|
|
case ARM::ASRi: ShiftTy = ARM_AM::asr; break;
|
|
case ARM::LSRi: ShiftTy = ARM_AM::lsr; break;
|
|
case ARM::LSLi: ShiftTy = ARM_AM::lsl; break;
|
|
case ARM::RORi: ShiftTy = ARM_AM::ror; break;
|
|
}
|
|
// A shift by zero is a plain MOVr, not a MOVsi.
|
|
unsigned Amt = Inst.getOperand(2).getImm();
|
|
unsigned Opc = Amt == 0 ? ARM::MOVr : ARM::MOVsi;
|
|
// A shift by 32 should be encoded as 0 when permitted
|
|
if (Amt == 32 && (ShiftTy == ARM_AM::lsr || ShiftTy == ARM_AM::asr))
|
|
Amt = 0;
|
|
unsigned Shifter = ARM_AM::getSORegOpc(ShiftTy, Amt);
|
|
MCInst TmpInst;
|
|
TmpInst.setOpcode(Opc);
|
|
TmpInst.addOperand(Inst.getOperand(0)); // Rd
|
|
TmpInst.addOperand(Inst.getOperand(1)); // Rn
|
|
if (Opc == ARM::MOVsi)
|
|
TmpInst.addOperand(MCOperand::CreateImm(Shifter)); // Shift value and ty
|
|
TmpInst.addOperand(Inst.getOperand(3)); // CondCode
|
|
TmpInst.addOperand(Inst.getOperand(4));
|
|
TmpInst.addOperand(Inst.getOperand(5)); // cc_out
|
|
Inst = TmpInst;
|
|
return true;
|
|
}
|
|
case ARM::RRXi: {
|
|
unsigned Shifter = ARM_AM::getSORegOpc(ARM_AM::rrx, 0);
|
|
MCInst TmpInst;
|
|
TmpInst.setOpcode(ARM::MOVsi);
|
|
TmpInst.addOperand(Inst.getOperand(0)); // Rd
|
|
TmpInst.addOperand(Inst.getOperand(1)); // Rn
|
|
TmpInst.addOperand(MCOperand::CreateImm(Shifter)); // Shift value and ty
|
|
TmpInst.addOperand(Inst.getOperand(2)); // CondCode
|
|
TmpInst.addOperand(Inst.getOperand(3));
|
|
TmpInst.addOperand(Inst.getOperand(4)); // cc_out
|
|
Inst = TmpInst;
|
|
return true;
|
|
}
|
|
case ARM::t2LDMIA_UPD: {
|
|
// If this is a load of a single register, then we should use
|
|
// a post-indexed LDR instruction instead, per the ARM ARM.
|
|
if (Inst.getNumOperands() != 5)
|
|
return false;
|
|
MCInst TmpInst;
|
|
TmpInst.setOpcode(ARM::t2LDR_POST);
|
|
TmpInst.addOperand(Inst.getOperand(4)); // Rt
|
|
TmpInst.addOperand(Inst.getOperand(0)); // Rn_wb
|
|
TmpInst.addOperand(Inst.getOperand(1)); // Rn
|
|
TmpInst.addOperand(MCOperand::CreateImm(4));
|
|
TmpInst.addOperand(Inst.getOperand(2)); // CondCode
|
|
TmpInst.addOperand(Inst.getOperand(3));
|
|
Inst = TmpInst;
|
|
return true;
|
|
}
|
|
case ARM::t2STMDB_UPD: {
|
|
// If this is a store of a single register, then we should use
|
|
// a pre-indexed STR instruction instead, per the ARM ARM.
|
|
if (Inst.getNumOperands() != 5)
|
|
return false;
|
|
MCInst TmpInst;
|
|
TmpInst.setOpcode(ARM::t2STR_PRE);
|
|
TmpInst.addOperand(Inst.getOperand(0)); // Rn_wb
|
|
TmpInst.addOperand(Inst.getOperand(4)); // Rt
|
|
TmpInst.addOperand(Inst.getOperand(1)); // Rn
|
|
TmpInst.addOperand(MCOperand::CreateImm(-4));
|
|
TmpInst.addOperand(Inst.getOperand(2)); // CondCode
|
|
TmpInst.addOperand(Inst.getOperand(3));
|
|
Inst = TmpInst;
|
|
return true;
|
|
}
|
|
case ARM::LDMIA_UPD:
|
|
// If this is a load of a single register via a 'pop', then we should use
|
|
// a post-indexed LDR instruction instead, per the ARM ARM.
|
|
if (static_cast<ARMOperand*>(Operands[0])->getToken() == "pop" &&
|
|
Inst.getNumOperands() == 5) {
|
|
MCInst TmpInst;
|
|
TmpInst.setOpcode(ARM::LDR_POST_IMM);
|
|
TmpInst.addOperand(Inst.getOperand(4)); // Rt
|
|
TmpInst.addOperand(Inst.getOperand(0)); // Rn_wb
|
|
TmpInst.addOperand(Inst.getOperand(1)); // Rn
|
|
TmpInst.addOperand(MCOperand::CreateReg(0)); // am2offset
|
|
TmpInst.addOperand(MCOperand::CreateImm(4));
|
|
TmpInst.addOperand(Inst.getOperand(2)); // CondCode
|
|
TmpInst.addOperand(Inst.getOperand(3));
|
|
Inst = TmpInst;
|
|
return true;
|
|
}
|
|
break;
|
|
case ARM::STMDB_UPD:
|
|
// If this is a store of a single register via a 'push', then we should use
|
|
// a pre-indexed STR instruction instead, per the ARM ARM.
|
|
if (static_cast<ARMOperand*>(Operands[0])->getToken() == "push" &&
|
|
Inst.getNumOperands() == 5) {
|
|
MCInst TmpInst;
|
|
TmpInst.setOpcode(ARM::STR_PRE_IMM);
|
|
TmpInst.addOperand(Inst.getOperand(0)); // Rn_wb
|
|
TmpInst.addOperand(Inst.getOperand(4)); // Rt
|
|
TmpInst.addOperand(Inst.getOperand(1)); // addrmode_imm12
|
|
TmpInst.addOperand(MCOperand::CreateImm(-4));
|
|
TmpInst.addOperand(Inst.getOperand(2)); // CondCode
|
|
TmpInst.addOperand(Inst.getOperand(3));
|
|
Inst = TmpInst;
|
|
}
|
|
break;
|
|
case ARM::t2ADDri12:
|
|
// If the immediate fits for encoding T3 (t2ADDri) and the generic "add"
|
|
// mnemonic was used (not "addw"), encoding T3 is preferred.
|
|
if (static_cast<ARMOperand*>(Operands[0])->getToken() != "add" ||
|
|
ARM_AM::getT2SOImmVal(Inst.getOperand(2).getImm()) == -1)
|
|
break;
|
|
Inst.setOpcode(ARM::t2ADDri);
|
|
Inst.addOperand(MCOperand::CreateReg(0)); // cc_out
|
|
break;
|
|
case ARM::t2SUBri12:
|
|
// If the immediate fits for encoding T3 (t2SUBri) and the generic "sub"
|
|
// mnemonic was used (not "subw"), encoding T3 is preferred.
|
|
if (static_cast<ARMOperand*>(Operands[0])->getToken() != "sub" ||
|
|
ARM_AM::getT2SOImmVal(Inst.getOperand(2).getImm()) == -1)
|
|
break;
|
|
Inst.setOpcode(ARM::t2SUBri);
|
|
Inst.addOperand(MCOperand::CreateReg(0)); // cc_out
|
|
break;
|
|
case ARM::tADDi8:
|
|
// If the immediate is in the range 0-7, we want tADDi3 iff Rd was
|
|
// explicitly specified. From the ARM ARM: "Encoding T1 is preferred
|
|
// to encoding T2 if <Rd> is specified and encoding T2 is preferred
|
|
// to encoding T1 if <Rd> is omitted."
|
|
if ((unsigned)Inst.getOperand(3).getImm() < 8 && Operands.size() == 6) {
|
|
Inst.setOpcode(ARM::tADDi3);
|
|
return true;
|
|
}
|
|
break;
|
|
case ARM::tSUBi8:
|
|
// If the immediate is in the range 0-7, we want tADDi3 iff Rd was
|
|
// explicitly specified. From the ARM ARM: "Encoding T1 is preferred
|
|
// to encoding T2 if <Rd> is specified and encoding T2 is preferred
|
|
// to encoding T1 if <Rd> is omitted."
|
|
if ((unsigned)Inst.getOperand(3).getImm() < 8 && Operands.size() == 6) {
|
|
Inst.setOpcode(ARM::tSUBi3);
|
|
return true;
|
|
}
|
|
break;
|
|
case ARM::t2ADDri:
|
|
case ARM::t2SUBri: {
|
|
// If the destination and first source operand are the same, and
|
|
// the flags are compatible with the current IT status, use encoding T2
|
|
// instead of T3. For compatibility with the system 'as'. Make sure the
|
|
// wide encoding wasn't explicit.
|
|
if (Inst.getOperand(0).getReg() != Inst.getOperand(1).getReg() ||
|
|
!isARMLowRegister(Inst.getOperand(0).getReg()) ||
|
|
(unsigned)Inst.getOperand(2).getImm() > 255 ||
|
|
((!inITBlock() && Inst.getOperand(5).getReg() != ARM::CPSR) ||
|
|
(inITBlock() && Inst.getOperand(5).getReg() != 0)) ||
|
|
(static_cast<ARMOperand*>(Operands[3])->isToken() &&
|
|
static_cast<ARMOperand*>(Operands[3])->getToken() == ".w"))
|
|
break;
|
|
MCInst TmpInst;
|
|
TmpInst.setOpcode(Inst.getOpcode() == ARM::t2ADDri ?
|
|
ARM::tADDi8 : ARM::tSUBi8);
|
|
TmpInst.addOperand(Inst.getOperand(0));
|
|
TmpInst.addOperand(Inst.getOperand(5));
|
|
TmpInst.addOperand(Inst.getOperand(0));
|
|
TmpInst.addOperand(Inst.getOperand(2));
|
|
TmpInst.addOperand(Inst.getOperand(3));
|
|
TmpInst.addOperand(Inst.getOperand(4));
|
|
Inst = TmpInst;
|
|
return true;
|
|
}
|
|
case ARM::t2ADDrr: {
|
|
// If the destination and first source operand are the same, and
|
|
// there's no setting of the flags, use encoding T2 instead of T3.
|
|
// Note that this is only for ADD, not SUB. This mirrors the system
|
|
// 'as' behaviour. Make sure the wide encoding wasn't explicit.
|
|
if (Inst.getOperand(0).getReg() != Inst.getOperand(1).getReg() ||
|
|
Inst.getOperand(5).getReg() != 0 ||
|
|
(static_cast<ARMOperand*>(Operands[3])->isToken() &&
|
|
static_cast<ARMOperand*>(Operands[3])->getToken() == ".w"))
|
|
break;
|
|
MCInst TmpInst;
|
|
TmpInst.setOpcode(ARM::tADDhirr);
|
|
TmpInst.addOperand(Inst.getOperand(0));
|
|
TmpInst.addOperand(Inst.getOperand(0));
|
|
TmpInst.addOperand(Inst.getOperand(2));
|
|
TmpInst.addOperand(Inst.getOperand(3));
|
|
TmpInst.addOperand(Inst.getOperand(4));
|
|
Inst = TmpInst;
|
|
return true;
|
|
}
|
|
case ARM::tADDrSP: {
|
|
// If the non-SP source operand and the destination operand are not the
|
|
// same, we need to use the 32-bit encoding if it's available.
|
|
if (Inst.getOperand(0).getReg() != Inst.getOperand(2).getReg()) {
|
|
Inst.setOpcode(ARM::t2ADDrr);
|
|
Inst.addOperand(MCOperand::CreateReg(0)); // cc_out
|
|
return true;
|
|
}
|
|
break;
|
|
}
|
|
case ARM::tB:
|
|
// A Thumb conditional branch outside of an IT block is a tBcc.
|
|
if (Inst.getOperand(1).getImm() != ARMCC::AL && !inITBlock()) {
|
|
Inst.setOpcode(ARM::tBcc);
|
|
return true;
|
|
}
|
|
break;
|
|
case ARM::t2B:
|
|
// A Thumb2 conditional branch outside of an IT block is a t2Bcc.
|
|
if (Inst.getOperand(1).getImm() != ARMCC::AL && !inITBlock()){
|
|
Inst.setOpcode(ARM::t2Bcc);
|
|
return true;
|
|
}
|
|
break;
|
|
case ARM::t2Bcc:
|
|
// If the conditional is AL or we're in an IT block, we really want t2B.
|
|
if (Inst.getOperand(1).getImm() == ARMCC::AL || inITBlock()) {
|
|
Inst.setOpcode(ARM::t2B);
|
|
return true;
|
|
}
|
|
break;
|
|
case ARM::tBcc:
|
|
// If the conditional is AL, we really want tB.
|
|
if (Inst.getOperand(1).getImm() == ARMCC::AL) {
|
|
Inst.setOpcode(ARM::tB);
|
|
return true;
|
|
}
|
|
break;
|
|
case ARM::tLDMIA: {
|
|
// If the register list contains any high registers, or if the writeback
|
|
// doesn't match what tLDMIA can do, we need to use the 32-bit encoding
|
|
// instead if we're in Thumb2. Otherwise, this should have generated
|
|
// an error in validateInstruction().
|
|
unsigned Rn = Inst.getOperand(0).getReg();
|
|
bool hasWritebackToken =
|
|
(static_cast<ARMOperand*>(Operands[3])->isToken() &&
|
|
static_cast<ARMOperand*>(Operands[3])->getToken() == "!");
|
|
bool listContainsBase;
|
|
if (checkLowRegisterList(Inst, 3, Rn, 0, listContainsBase) ||
|
|
(!listContainsBase && !hasWritebackToken) ||
|
|
(listContainsBase && hasWritebackToken)) {
|
|
// 16-bit encoding isn't sufficient. Switch to the 32-bit version.
|
|
assert (isThumbTwo());
|
|
Inst.setOpcode(hasWritebackToken ? ARM::t2LDMIA_UPD : ARM::t2LDMIA);
|
|
// If we're switching to the updating version, we need to insert
|
|
// the writeback tied operand.
|
|
if (hasWritebackToken)
|
|
Inst.insert(Inst.begin(),
|
|
MCOperand::CreateReg(Inst.getOperand(0).getReg()));
|
|
return true;
|
|
}
|
|
break;
|
|
}
|
|
case ARM::tSTMIA_UPD: {
|
|
// If the register list contains any high registers, we need to use
|
|
// the 32-bit encoding instead if we're in Thumb2. Otherwise, this
|
|
// should have generated an error in validateInstruction().
|
|
unsigned Rn = Inst.getOperand(0).getReg();
|
|
bool listContainsBase;
|
|
if (checkLowRegisterList(Inst, 4, Rn, 0, listContainsBase)) {
|
|
// 16-bit encoding isn't sufficient. Switch to the 32-bit version.
|
|
assert (isThumbTwo());
|
|
Inst.setOpcode(ARM::t2STMIA_UPD);
|
|
return true;
|
|
}
|
|
break;
|
|
}
|
|
case ARM::tPOP: {
|
|
bool listContainsBase;
|
|
// If the register list contains any high registers, we need to use
|
|
// the 32-bit encoding instead if we're in Thumb2. Otherwise, this
|
|
// should have generated an error in validateInstruction().
|
|
if (!checkLowRegisterList(Inst, 2, 0, ARM::PC, listContainsBase))
|
|
return false;
|
|
assert (isThumbTwo());
|
|
Inst.setOpcode(ARM::t2LDMIA_UPD);
|
|
// Add the base register and writeback operands.
|
|
Inst.insert(Inst.begin(), MCOperand::CreateReg(ARM::SP));
|
|
Inst.insert(Inst.begin(), MCOperand::CreateReg(ARM::SP));
|
|
return true;
|
|
}
|
|
case ARM::tPUSH: {
|
|
bool listContainsBase;
|
|
if (!checkLowRegisterList(Inst, 2, 0, ARM::LR, listContainsBase))
|
|
return false;
|
|
assert (isThumbTwo());
|
|
Inst.setOpcode(ARM::t2STMDB_UPD);
|
|
// Add the base register and writeback operands.
|
|
Inst.insert(Inst.begin(), MCOperand::CreateReg(ARM::SP));
|
|
Inst.insert(Inst.begin(), MCOperand::CreateReg(ARM::SP));
|
|
return true;
|
|
}
|
|
case ARM::t2MOVi: {
|
|
// If we can use the 16-bit encoding and the user didn't explicitly
|
|
// request the 32-bit variant, transform it here.
|
|
if (isARMLowRegister(Inst.getOperand(0).getReg()) &&
|
|
(unsigned)Inst.getOperand(1).getImm() <= 255 &&
|
|
((!inITBlock() && Inst.getOperand(2).getImm() == ARMCC::AL &&
|
|
Inst.getOperand(4).getReg() == ARM::CPSR) ||
|
|
(inITBlock() && Inst.getOperand(4).getReg() == 0)) &&
|
|
(!static_cast<ARMOperand*>(Operands[2])->isToken() ||
|
|
static_cast<ARMOperand*>(Operands[2])->getToken() != ".w")) {
|
|
// The operands aren't in the same order for tMOVi8...
|
|
MCInst TmpInst;
|
|
TmpInst.setOpcode(ARM::tMOVi8);
|
|
TmpInst.addOperand(Inst.getOperand(0));
|
|
TmpInst.addOperand(Inst.getOperand(4));
|
|
TmpInst.addOperand(Inst.getOperand(1));
|
|
TmpInst.addOperand(Inst.getOperand(2));
|
|
TmpInst.addOperand(Inst.getOperand(3));
|
|
Inst = TmpInst;
|
|
return true;
|
|
}
|
|
break;
|
|
}
|
|
case ARM::t2MOVr: {
|
|
// If we can use the 16-bit encoding and the user didn't explicitly
|
|
// request the 32-bit variant, transform it here.
|
|
if (isARMLowRegister(Inst.getOperand(0).getReg()) &&
|
|
isARMLowRegister(Inst.getOperand(1).getReg()) &&
|
|
Inst.getOperand(2).getImm() == ARMCC::AL &&
|
|
Inst.getOperand(4).getReg() == ARM::CPSR &&
|
|
(!static_cast<ARMOperand*>(Operands[2])->isToken() ||
|
|
static_cast<ARMOperand*>(Operands[2])->getToken() != ".w")) {
|
|
// The operands aren't the same for tMOV[S]r... (no cc_out)
|
|
MCInst TmpInst;
|
|
TmpInst.setOpcode(Inst.getOperand(4).getReg() ? ARM::tMOVSr : ARM::tMOVr);
|
|
TmpInst.addOperand(Inst.getOperand(0));
|
|
TmpInst.addOperand(Inst.getOperand(1));
|
|
TmpInst.addOperand(Inst.getOperand(2));
|
|
TmpInst.addOperand(Inst.getOperand(3));
|
|
Inst = TmpInst;
|
|
return true;
|
|
}
|
|
break;
|
|
}
|
|
case ARM::t2SXTH:
|
|
case ARM::t2SXTB:
|
|
case ARM::t2UXTH:
|
|
case ARM::t2UXTB: {
|
|
// If we can use the 16-bit encoding and the user didn't explicitly
|
|
// request the 32-bit variant, transform it here.
|
|
if (isARMLowRegister(Inst.getOperand(0).getReg()) &&
|
|
isARMLowRegister(Inst.getOperand(1).getReg()) &&
|
|
Inst.getOperand(2).getImm() == 0 &&
|
|
(!static_cast<ARMOperand*>(Operands[2])->isToken() ||
|
|
static_cast<ARMOperand*>(Operands[2])->getToken() != ".w")) {
|
|
unsigned NewOpc;
|
|
switch (Inst.getOpcode()) {
|
|
default: llvm_unreachable("Illegal opcode!");
|
|
case ARM::t2SXTH: NewOpc = ARM::tSXTH; break;
|
|
case ARM::t2SXTB: NewOpc = ARM::tSXTB; break;
|
|
case ARM::t2UXTH: NewOpc = ARM::tUXTH; break;
|
|
case ARM::t2UXTB: NewOpc = ARM::tUXTB; break;
|
|
}
|
|
// The operands aren't the same for thumb1 (no rotate operand).
|
|
MCInst TmpInst;
|
|
TmpInst.setOpcode(NewOpc);
|
|
TmpInst.addOperand(Inst.getOperand(0));
|
|
TmpInst.addOperand(Inst.getOperand(1));
|
|
TmpInst.addOperand(Inst.getOperand(3));
|
|
TmpInst.addOperand(Inst.getOperand(4));
|
|
Inst = TmpInst;
|
|
return true;
|
|
}
|
|
break;
|
|
}
|
|
case ARM::MOVsi: {
|
|
ARM_AM::ShiftOpc SOpc = ARM_AM::getSORegShOp(Inst.getOperand(2).getImm());
|
|
// rrx shifts and asr/lsr of #32 is encoded as 0
|
|
if (SOpc == ARM_AM::rrx || SOpc == ARM_AM::asr || SOpc == ARM_AM::lsr)
|
|
return false;
|
|
if (ARM_AM::getSORegOffset(Inst.getOperand(2).getImm()) == 0) {
|
|
// Shifting by zero is accepted as a vanilla 'MOVr'
|
|
MCInst TmpInst;
|
|
TmpInst.setOpcode(ARM::MOVr);
|
|
TmpInst.addOperand(Inst.getOperand(0));
|
|
TmpInst.addOperand(Inst.getOperand(1));
|
|
TmpInst.addOperand(Inst.getOperand(3));
|
|
TmpInst.addOperand(Inst.getOperand(4));
|
|
TmpInst.addOperand(Inst.getOperand(5));
|
|
Inst = TmpInst;
|
|
return true;
|
|
}
|
|
return false;
|
|
}
|
|
case ARM::ANDrsi:
|
|
case ARM::ORRrsi:
|
|
case ARM::EORrsi:
|
|
case ARM::BICrsi:
|
|
case ARM::SUBrsi:
|
|
case ARM::ADDrsi: {
|
|
unsigned newOpc;
|
|
ARM_AM::ShiftOpc SOpc = ARM_AM::getSORegShOp(Inst.getOperand(3).getImm());
|
|
if (SOpc == ARM_AM::rrx) return false;
|
|
switch (Inst.getOpcode()) {
|
|
default: llvm_unreachable("unexpected opcode!");
|
|
case ARM::ANDrsi: newOpc = ARM::ANDrr; break;
|
|
case ARM::ORRrsi: newOpc = ARM::ORRrr; break;
|
|
case ARM::EORrsi: newOpc = ARM::EORrr; break;
|
|
case ARM::BICrsi: newOpc = ARM::BICrr; break;
|
|
case ARM::SUBrsi: newOpc = ARM::SUBrr; break;
|
|
case ARM::ADDrsi: newOpc = ARM::ADDrr; break;
|
|
}
|
|
// If the shift is by zero, use the non-shifted instruction definition.
|
|
// The exception is for right shifts, where 0 == 32
|
|
if (ARM_AM::getSORegOffset(Inst.getOperand(3).getImm()) == 0 &&
|
|
!(SOpc == ARM_AM::lsr || SOpc == ARM_AM::asr)) {
|
|
MCInst TmpInst;
|
|
TmpInst.setOpcode(newOpc);
|
|
TmpInst.addOperand(Inst.getOperand(0));
|
|
TmpInst.addOperand(Inst.getOperand(1));
|
|
TmpInst.addOperand(Inst.getOperand(2));
|
|
TmpInst.addOperand(Inst.getOperand(4));
|
|
TmpInst.addOperand(Inst.getOperand(5));
|
|
TmpInst.addOperand(Inst.getOperand(6));
|
|
Inst = TmpInst;
|
|
return true;
|
|
}
|
|
return false;
|
|
}
|
|
case ARM::ITasm:
|
|
case ARM::t2IT: {
|
|
// The mask bits for all but the first condition are represented as
|
|
// the low bit of the condition code value implies 't'. We currently
|
|
// always have 1 implies 't', so XOR toggle the bits if the low bit
|
|
// of the condition code is zero.
|
|
MCOperand &MO = Inst.getOperand(1);
|
|
unsigned Mask = MO.getImm();
|
|
unsigned OrigMask = Mask;
|
|
unsigned TZ = CountTrailingZeros_32(Mask);
|
|
if ((Inst.getOperand(0).getImm() & 1) == 0) {
|
|
assert(Mask && TZ <= 3 && "illegal IT mask value!");
|
|
for (unsigned i = 3; i != TZ; --i)
|
|
Mask ^= 1 << i;
|
|
}
|
|
MO.setImm(Mask);
|
|
|
|
// Set up the IT block state according to the IT instruction we just
|
|
// matched.
|
|
assert(!inITBlock() && "nested IT blocks?!");
|
|
ITState.Cond = ARMCC::CondCodes(Inst.getOperand(0).getImm());
|
|
ITState.Mask = OrigMask; // Use the original mask, not the updated one.
|
|
ITState.CurPosition = 0;
|
|
ITState.FirstCond = true;
|
|
break;
|
|
}
|
|
case ARM::t2LSLrr:
|
|
case ARM::t2LSRrr:
|
|
case ARM::t2ASRrr:
|
|
case ARM::t2SBCrr:
|
|
case ARM::t2RORrr:
|
|
case ARM::t2BICrr:
|
|
{
|
|
// Assemblers should use the narrow encodings of these instructions when permissible.
|
|
if ((isARMLowRegister(Inst.getOperand(1).getReg()) &&
|
|
isARMLowRegister(Inst.getOperand(2).getReg())) &&
|
|
Inst.getOperand(0).getReg() == Inst.getOperand(1).getReg() &&
|
|
((!inITBlock() && Inst.getOperand(5).getReg() == ARM::CPSR) ||
|
|
(inITBlock() && Inst.getOperand(5).getReg() != ARM::CPSR)) &&
|
|
(!static_cast<ARMOperand*>(Operands[3])->isToken() ||
|
|
!static_cast<ARMOperand*>(Operands[3])->getToken().equals_lower(".w"))) {
|
|
unsigned NewOpc;
|
|
switch (Inst.getOpcode()) {
|
|
default: llvm_unreachable("unexpected opcode");
|
|
case ARM::t2LSLrr: NewOpc = ARM::tLSLrr; break;
|
|
case ARM::t2LSRrr: NewOpc = ARM::tLSRrr; break;
|
|
case ARM::t2ASRrr: NewOpc = ARM::tASRrr; break;
|
|
case ARM::t2SBCrr: NewOpc = ARM::tSBC; break;
|
|
case ARM::t2RORrr: NewOpc = ARM::tROR; break;
|
|
case ARM::t2BICrr: NewOpc = ARM::tBIC; break;
|
|
}
|
|
MCInst TmpInst;
|
|
TmpInst.setOpcode(NewOpc);
|
|
TmpInst.addOperand(Inst.getOperand(0));
|
|
TmpInst.addOperand(Inst.getOperand(5));
|
|
TmpInst.addOperand(Inst.getOperand(1));
|
|
TmpInst.addOperand(Inst.getOperand(2));
|
|
TmpInst.addOperand(Inst.getOperand(3));
|
|
TmpInst.addOperand(Inst.getOperand(4));
|
|
Inst = TmpInst;
|
|
return true;
|
|
}
|
|
return false;
|
|
}
|
|
case ARM::t2ANDrr:
|
|
case ARM::t2EORrr:
|
|
case ARM::t2ADCrr:
|
|
case ARM::t2ORRrr:
|
|
{
|
|
// Assemblers should use the narrow encodings of these instructions when permissible.
|
|
// These instructions are special in that they are commutable, so shorter encodings
|
|
// are available more often.
|
|
if ((isARMLowRegister(Inst.getOperand(1).getReg()) &&
|
|
isARMLowRegister(Inst.getOperand(2).getReg())) &&
|
|
(Inst.getOperand(0).getReg() == Inst.getOperand(1).getReg() ||
|
|
Inst.getOperand(0).getReg() == Inst.getOperand(2).getReg()) &&
|
|
((!inITBlock() && Inst.getOperand(5).getReg() == ARM::CPSR) ||
|
|
(inITBlock() && Inst.getOperand(5).getReg() != ARM::CPSR)) &&
|
|
(!static_cast<ARMOperand*>(Operands[3])->isToken() ||
|
|
!static_cast<ARMOperand*>(Operands[3])->getToken().equals_lower(".w"))) {
|
|
unsigned NewOpc;
|
|
switch (Inst.getOpcode()) {
|
|
default: llvm_unreachable("unexpected opcode");
|
|
case ARM::t2ADCrr: NewOpc = ARM::tADC; break;
|
|
case ARM::t2ANDrr: NewOpc = ARM::tAND; break;
|
|
case ARM::t2EORrr: NewOpc = ARM::tEOR; break;
|
|
case ARM::t2ORRrr: NewOpc = ARM::tORR; break;
|
|
}
|
|
MCInst TmpInst;
|
|
TmpInst.setOpcode(NewOpc);
|
|
TmpInst.addOperand(Inst.getOperand(0));
|
|
TmpInst.addOperand(Inst.getOperand(5));
|
|
if (Inst.getOperand(0).getReg() == Inst.getOperand(1).getReg()) {
|
|
TmpInst.addOperand(Inst.getOperand(1));
|
|
TmpInst.addOperand(Inst.getOperand(2));
|
|
} else {
|
|
TmpInst.addOperand(Inst.getOperand(2));
|
|
TmpInst.addOperand(Inst.getOperand(1));
|
|
}
|
|
TmpInst.addOperand(Inst.getOperand(3));
|
|
TmpInst.addOperand(Inst.getOperand(4));
|
|
Inst = TmpInst;
|
|
return true;
|
|
}
|
|
return false;
|
|
}
|
|
}
|
|
return false;
|
|
}
|
|
|
|
unsigned ARMAsmParser::checkTargetMatchPredicate(MCInst &Inst) {
|
|
// 16-bit thumb arithmetic instructions either require or preclude the 'S'
|
|
// suffix depending on whether they're in an IT block or not.
|
|
unsigned Opc = Inst.getOpcode();
|
|
const MCInstrDesc &MCID = getInstDesc(Opc);
|
|
if (MCID.TSFlags & ARMII::ThumbArithFlagSetting) {
|
|
assert(MCID.hasOptionalDef() &&
|
|
"optionally flag setting instruction missing optional def operand");
|
|
assert(MCID.NumOperands == Inst.getNumOperands() &&
|
|
"operand count mismatch!");
|
|
// Find the optional-def operand (cc_out).
|
|
unsigned OpNo;
|
|
for (OpNo = 0;
|
|
!MCID.OpInfo[OpNo].isOptionalDef() && OpNo < MCID.NumOperands;
|
|
++OpNo)
|
|
;
|
|
// If we're parsing Thumb1, reject it completely.
|
|
if (isThumbOne() && Inst.getOperand(OpNo).getReg() != ARM::CPSR)
|
|
return Match_MnemonicFail;
|
|
// If we're parsing Thumb2, which form is legal depends on whether we're
|
|
// in an IT block.
|
|
if (isThumbTwo() && Inst.getOperand(OpNo).getReg() != ARM::CPSR &&
|
|
!inITBlock())
|
|
return Match_RequiresITBlock;
|
|
if (isThumbTwo() && Inst.getOperand(OpNo).getReg() == ARM::CPSR &&
|
|
inITBlock())
|
|
return Match_RequiresNotITBlock;
|
|
}
|
|
// Some high-register supporting Thumb1 encodings only allow both registers
|
|
// to be from r0-r7 when in Thumb2.
|
|
else if (Opc == ARM::tADDhirr && isThumbOne() &&
|
|
isARMLowRegister(Inst.getOperand(1).getReg()) &&
|
|
isARMLowRegister(Inst.getOperand(2).getReg()))
|
|
return Match_RequiresThumb2;
|
|
// Others only require ARMv6 or later.
|
|
else if (Opc == ARM::tMOVr && isThumbOne() && !hasV6Ops() &&
|
|
isARMLowRegister(Inst.getOperand(0).getReg()) &&
|
|
isARMLowRegister(Inst.getOperand(1).getReg()))
|
|
return Match_RequiresV6;
|
|
return Match_Success;
|
|
}
|
|
|
|
static const char *getSubtargetFeatureName(unsigned Val);
|
|
bool ARMAsmParser::
|
|
MatchAndEmitInstruction(SMLoc IDLoc, unsigned &Opcode,
|
|
SmallVectorImpl<MCParsedAsmOperand*> &Operands,
|
|
MCStreamer &Out, unsigned &ErrorInfo,
|
|
bool MatchingInlineAsm) {
|
|
MCInst Inst;
|
|
unsigned MatchResult;
|
|
|
|
MatchResult = MatchInstructionImpl(Operands, Inst, ErrorInfo,
|
|
MatchingInlineAsm);
|
|
switch (MatchResult) {
|
|
default: break;
|
|
case Match_Success:
|
|
// Context sensitive operand constraints aren't handled by the matcher,
|
|
// so check them here.
|
|
if (validateInstruction(Inst, Operands)) {
|
|
// Still progress the IT block, otherwise one wrong condition causes
|
|
// nasty cascading errors.
|
|
forwardITPosition();
|
|
return true;
|
|
}
|
|
|
|
// Some instructions need post-processing to, for example, tweak which
|
|
// encoding is selected. Loop on it while changes happen so the
|
|
// individual transformations can chain off each other. E.g.,
|
|
// tPOP(r8)->t2LDMIA_UPD(sp,r8)->t2STR_POST(sp,r8)
|
|
while (processInstruction(Inst, Operands))
|
|
;
|
|
|
|
// Only move forward at the very end so that everything in validate
|
|
// and process gets a consistent answer about whether we're in an IT
|
|
// block.
|
|
forwardITPosition();
|
|
|
|
// ITasm is an ARM mode pseudo-instruction that just sets the ITblock and
|
|
// doesn't actually encode.
|
|
if (Inst.getOpcode() == ARM::ITasm)
|
|
return false;
|
|
|
|
Inst.setLoc(IDLoc);
|
|
Out.EmitInstruction(Inst);
|
|
return false;
|
|
case Match_MissingFeature: {
|
|
assert(ErrorInfo && "Unknown missing feature!");
|
|
// Special case the error message for the very common case where only
|
|
// a single subtarget feature is missing (Thumb vs. ARM, e.g.).
|
|
std::string Msg = "instruction requires:";
|
|
unsigned Mask = 1;
|
|
for (unsigned i = 0; i < (sizeof(ErrorInfo)*8-1); ++i) {
|
|
if (ErrorInfo & Mask) {
|
|
Msg += " ";
|
|
Msg += getSubtargetFeatureName(ErrorInfo & Mask);
|
|
}
|
|
Mask <<= 1;
|
|
}
|
|
return Error(IDLoc, Msg);
|
|
}
|
|
case Match_InvalidOperand: {
|
|
SMLoc ErrorLoc = IDLoc;
|
|
if (ErrorInfo != ~0U) {
|
|
if (ErrorInfo >= Operands.size())
|
|
return Error(IDLoc, "too few operands for instruction");
|
|
|
|
ErrorLoc = ((ARMOperand*)Operands[ErrorInfo])->getStartLoc();
|
|
if (ErrorLoc == SMLoc()) ErrorLoc = IDLoc;
|
|
}
|
|
|
|
return Error(ErrorLoc, "invalid operand for instruction");
|
|
}
|
|
case Match_MnemonicFail:
|
|
return Error(IDLoc, "invalid instruction",
|
|
((ARMOperand*)Operands[0])->getLocRange());
|
|
case Match_RequiresNotITBlock:
|
|
return Error(IDLoc, "flag setting instruction only valid outside IT block");
|
|
case Match_RequiresITBlock:
|
|
return Error(IDLoc, "instruction only valid inside IT block");
|
|
case Match_RequiresV6:
|
|
return Error(IDLoc, "instruction variant requires ARMv6 or later");
|
|
case Match_RequiresThumb2:
|
|
return Error(IDLoc, "instruction variant requires Thumb2");
|
|
case Match_ImmRange0_15: {
|
|
SMLoc ErrorLoc = ((ARMOperand*)Operands[ErrorInfo])->getStartLoc();
|
|
if (ErrorLoc == SMLoc()) ErrorLoc = IDLoc;
|
|
return Error(ErrorLoc, "immediate operand must be in the range [0,15]");
|
|
}
|
|
}
|
|
|
|
llvm_unreachable("Implement any new match types added!");
|
|
}
|
|
|
|
/// parseDirective parses the arm specific directives
|
|
bool ARMAsmParser::ParseDirective(AsmToken DirectiveID) {
|
|
StringRef IDVal = DirectiveID.getIdentifier();
|
|
if (IDVal == ".word")
|
|
return parseDirectiveWord(4, DirectiveID.getLoc());
|
|
else if (IDVal == ".thumb")
|
|
return parseDirectiveThumb(DirectiveID.getLoc());
|
|
else if (IDVal == ".arm")
|
|
return parseDirectiveARM(DirectiveID.getLoc());
|
|
else if (IDVal == ".thumb_func")
|
|
return parseDirectiveThumbFunc(DirectiveID.getLoc());
|
|
else if (IDVal == ".code")
|
|
return parseDirectiveCode(DirectiveID.getLoc());
|
|
else if (IDVal == ".syntax")
|
|
return parseDirectiveSyntax(DirectiveID.getLoc());
|
|
else if (IDVal == ".unreq")
|
|
return parseDirectiveUnreq(DirectiveID.getLoc());
|
|
else if (IDVal == ".arch")
|
|
return parseDirectiveArch(DirectiveID.getLoc());
|
|
else if (IDVal == ".eabi_attribute")
|
|
return parseDirectiveEabiAttr(DirectiveID.getLoc());
|
|
return true;
|
|
}
|
|
|
|
/// parseDirectiveWord
|
|
/// ::= .word [ expression (, expression)* ]
|
|
bool ARMAsmParser::parseDirectiveWord(unsigned Size, SMLoc L) {
|
|
if (getLexer().isNot(AsmToken::EndOfStatement)) {
|
|
for (;;) {
|
|
const MCExpr *Value;
|
|
if (getParser().ParseExpression(Value))
|
|
return true;
|
|
|
|
getParser().getStreamer().EmitValue(Value, Size, 0/*addrspace*/);
|
|
|
|
if (getLexer().is(AsmToken::EndOfStatement))
|
|
break;
|
|
|
|
// FIXME: Improve diagnostic.
|
|
if (getLexer().isNot(AsmToken::Comma))
|
|
return Error(L, "unexpected token in directive");
|
|
Parser.Lex();
|
|
}
|
|
}
|
|
|
|
Parser.Lex();
|
|
return false;
|
|
}
|
|
|
|
/// parseDirectiveThumb
|
|
/// ::= .thumb
|
|
bool ARMAsmParser::parseDirectiveThumb(SMLoc L) {
|
|
if (getLexer().isNot(AsmToken::EndOfStatement))
|
|
return Error(L, "unexpected token in directive");
|
|
Parser.Lex();
|
|
|
|
if (!isThumb())
|
|
SwitchMode();
|
|
getParser().getStreamer().EmitAssemblerFlag(MCAF_Code16);
|
|
return false;
|
|
}
|
|
|
|
/// parseDirectiveARM
|
|
/// ::= .arm
|
|
bool ARMAsmParser::parseDirectiveARM(SMLoc L) {
|
|
if (getLexer().isNot(AsmToken::EndOfStatement))
|
|
return Error(L, "unexpected token in directive");
|
|
Parser.Lex();
|
|
|
|
if (isThumb())
|
|
SwitchMode();
|
|
getParser().getStreamer().EmitAssemblerFlag(MCAF_Code32);
|
|
return false;
|
|
}
|
|
|
|
/// parseDirectiveThumbFunc
|
|
/// ::= .thumbfunc symbol_name
|
|
bool ARMAsmParser::parseDirectiveThumbFunc(SMLoc L) {
|
|
const MCAsmInfo &MAI = getParser().getStreamer().getContext().getAsmInfo();
|
|
bool isMachO = MAI.hasSubsectionsViaSymbols();
|
|
StringRef Name;
|
|
bool needFuncName = true;
|
|
|
|
// Darwin asm has (optionally) function name after .thumb_func direction
|
|
// ELF doesn't
|
|
if (isMachO) {
|
|
const AsmToken &Tok = Parser.getTok();
|
|
if (Tok.isNot(AsmToken::EndOfStatement)) {
|
|
if (Tok.isNot(AsmToken::Identifier) && Tok.isNot(AsmToken::String))
|
|
return Error(L, "unexpected token in .thumb_func directive");
|
|
Name = Tok.getIdentifier();
|
|
Parser.Lex(); // Consume the identifier token.
|
|
needFuncName = false;
|
|
}
|
|
}
|
|
|
|
if (getLexer().isNot(AsmToken::EndOfStatement))
|
|
return Error(L, "unexpected token in directive");
|
|
|
|
// Eat the end of statement and any blank lines that follow.
|
|
while (getLexer().is(AsmToken::EndOfStatement))
|
|
Parser.Lex();
|
|
|
|
// FIXME: assuming function name will be the line following .thumb_func
|
|
// We really should be checking the next symbol definition even if there's
|
|
// stuff in between.
|
|
if (needFuncName) {
|
|
Name = Parser.getTok().getIdentifier();
|
|
}
|
|
|
|
// Mark symbol as a thumb symbol.
|
|
MCSymbol *Func = getParser().getContext().GetOrCreateSymbol(Name);
|
|
getParser().getStreamer().EmitThumbFunc(Func);
|
|
return false;
|
|
}
|
|
|
|
/// parseDirectiveSyntax
|
|
/// ::= .syntax unified | divided
|
|
bool ARMAsmParser::parseDirectiveSyntax(SMLoc L) {
|
|
const AsmToken &Tok = Parser.getTok();
|
|
if (Tok.isNot(AsmToken::Identifier))
|
|
return Error(L, "unexpected token in .syntax directive");
|
|
StringRef Mode = Tok.getString();
|
|
if (Mode == "unified" || Mode == "UNIFIED")
|
|
Parser.Lex();
|
|
else if (Mode == "divided" || Mode == "DIVIDED")
|
|
return Error(L, "'.syntax divided' arm asssembly not supported");
|
|
else
|
|
return Error(L, "unrecognized syntax mode in .syntax directive");
|
|
|
|
if (getLexer().isNot(AsmToken::EndOfStatement))
|
|
return Error(Parser.getTok().getLoc(), "unexpected token in directive");
|
|
Parser.Lex();
|
|
|
|
// TODO tell the MC streamer the mode
|
|
// getParser().getStreamer().Emit???();
|
|
return false;
|
|
}
|
|
|
|
/// parseDirectiveCode
|
|
/// ::= .code 16 | 32
|
|
bool ARMAsmParser::parseDirectiveCode(SMLoc L) {
|
|
const AsmToken &Tok = Parser.getTok();
|
|
if (Tok.isNot(AsmToken::Integer))
|
|
return Error(L, "unexpected token in .code directive");
|
|
int64_t Val = Parser.getTok().getIntVal();
|
|
if (Val == 16)
|
|
Parser.Lex();
|
|
else if (Val == 32)
|
|
Parser.Lex();
|
|
else
|
|
return Error(L, "invalid operand to .code directive");
|
|
|
|
if (getLexer().isNot(AsmToken::EndOfStatement))
|
|
return Error(Parser.getTok().getLoc(), "unexpected token in directive");
|
|
Parser.Lex();
|
|
|
|
if (Val == 16) {
|
|
if (!isThumb())
|
|
SwitchMode();
|
|
getParser().getStreamer().EmitAssemblerFlag(MCAF_Code16);
|
|
} else {
|
|
if (isThumb())
|
|
SwitchMode();
|
|
getParser().getStreamer().EmitAssemblerFlag(MCAF_Code32);
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
/// parseDirectiveReq
|
|
/// ::= name .req registername
|
|
bool ARMAsmParser::parseDirectiveReq(StringRef Name, SMLoc L) {
|
|
Parser.Lex(); // Eat the '.req' token.
|
|
unsigned Reg;
|
|
SMLoc SRegLoc, ERegLoc;
|
|
if (ParseRegister(Reg, SRegLoc, ERegLoc)) {
|
|
Parser.EatToEndOfStatement();
|
|
return Error(SRegLoc, "register name expected");
|
|
}
|
|
|
|
// Shouldn't be anything else.
|
|
if (Parser.getTok().isNot(AsmToken::EndOfStatement)) {
|
|
Parser.EatToEndOfStatement();
|
|
return Error(Parser.getTok().getLoc(),
|
|
"unexpected input in .req directive.");
|
|
}
|
|
|
|
Parser.Lex(); // Consume the EndOfStatement
|
|
|
|
if (RegisterReqs.GetOrCreateValue(Name, Reg).getValue() != Reg)
|
|
return Error(SRegLoc, "redefinition of '" + Name +
|
|
"' does not match original.");
|
|
|
|
return false;
|
|
}
|
|
|
|
/// parseDirectiveUneq
|
|
/// ::= .unreq registername
|
|
bool ARMAsmParser::parseDirectiveUnreq(SMLoc L) {
|
|
if (Parser.getTok().isNot(AsmToken::Identifier)) {
|
|
Parser.EatToEndOfStatement();
|
|
return Error(L, "unexpected input in .unreq directive.");
|
|
}
|
|
RegisterReqs.erase(Parser.getTok().getIdentifier());
|
|
Parser.Lex(); // Eat the identifier.
|
|
return false;
|
|
}
|
|
|
|
/// parseDirectiveArch
|
|
/// ::= .arch token
|
|
bool ARMAsmParser::parseDirectiveArch(SMLoc L) {
|
|
return true;
|
|
}
|
|
|
|
/// parseDirectiveEabiAttr
|
|
/// ::= .eabi_attribute int, int
|
|
bool ARMAsmParser::parseDirectiveEabiAttr(SMLoc L) {
|
|
return true;
|
|
}
|
|
|
|
extern "C" void LLVMInitializeARMAsmLexer();
|
|
|
|
/// Force static initialization.
|
|
extern "C" void LLVMInitializeARMAsmParser() {
|
|
RegisterMCAsmParser<ARMAsmParser> X(TheARMTarget);
|
|
RegisterMCAsmParser<ARMAsmParser> Y(TheThumbTarget);
|
|
LLVMInitializeARMAsmLexer();
|
|
}
|
|
|
|
#define GET_REGISTER_MATCHER
|
|
#define GET_SUBTARGET_FEATURE_NAME
|
|
#define GET_MATCHER_IMPLEMENTATION
|
|
#include "ARMGenAsmMatcher.inc"
|