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dc05f3a64b
Certain ARM instructions accept 32-bit immediate operands encoded as a 8-bit integer value (0-255) and a 4-bit rotation (0-30, even). Current ARM assembly syntax support in LLVM allows the decoded (32-bit) immediate to be specified as a single immediate operand for such instructions: mov r0, #4278190080 The ARMARM defines an extended assembly syntax allowing the encoding to be made more explicit, as in: mov r0, #255, #8 ; (same 32-bit value as above) The behaviour of the two instructions can be different w.r.t flags, which is documented under "Modified immediate constants" in ARMARM. This patch enables support for this extended syntax at the MC layer. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@223113 91177308-0d34-0410-b5e6-96231b3b80d8
172 lines
9.1 KiB
C++
172 lines
9.1 KiB
C++
//===- ARMInstPrinter.h - Convert ARM MCInst to assembly syntax -*- C++ -*-===//
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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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//
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// This class prints an ARM MCInst to a .s file.
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//
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//===----------------------------------------------------------------------===//
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#ifndef LLVM_LIB_TARGET_ARM_INSTPRINTER_ARMINSTPRINTER_H
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#define LLVM_LIB_TARGET_ARM_INSTPRINTER_ARMINSTPRINTER_H
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#include "llvm/MC/MCInstPrinter.h"
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#include "llvm/MC/MCSubtargetInfo.h"
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namespace llvm {
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class MCOperand;
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class ARMInstPrinter : public MCInstPrinter {
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public:
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ARMInstPrinter(const MCAsmInfo &MAI, const MCInstrInfo &MII,
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const MCRegisterInfo &MRI, const MCSubtargetInfo &STI);
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void printInst(const MCInst *MI, raw_ostream &O, StringRef Annot) override;
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void printRegName(raw_ostream &OS, unsigned RegNo) const override;
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// Autogenerated by tblgen.
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void printInstruction(const MCInst *MI, raw_ostream &O);
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static const char *getRegisterName(unsigned RegNo);
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void printOperand(const MCInst *MI, unsigned OpNo, raw_ostream &O);
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void printSORegRegOperand(const MCInst *MI, unsigned OpNum, raw_ostream &O);
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void printSORegImmOperand(const MCInst *MI, unsigned OpNum, raw_ostream &O);
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void printAddrModeTBB(const MCInst *MI, unsigned OpNum, raw_ostream &O);
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void printAddrModeTBH(const MCInst *MI, unsigned OpNum, raw_ostream &O);
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void printAddrMode2Operand(const MCInst *MI, unsigned OpNum, raw_ostream &O);
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void printAM2PostIndexOp(const MCInst *MI, unsigned OpNum, raw_ostream &O);
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void printAM2PreOrOffsetIndexOp(const MCInst *MI, unsigned OpNum,
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raw_ostream &O);
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void printAddrMode2OffsetOperand(const MCInst *MI, unsigned OpNum,
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raw_ostream &O);
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template <bool AlwaysPrintImm0>
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void printAddrMode3Operand(const MCInst *MI, unsigned OpNum, raw_ostream &O);
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void printAddrMode3OffsetOperand(const MCInst *MI, unsigned OpNum,
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raw_ostream &O);
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void printAM3PreOrOffsetIndexOp(const MCInst *MI, unsigned Op, raw_ostream &O,
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bool AlwaysPrintImm0);
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void printPostIdxImm8Operand(const MCInst *MI, unsigned OpNum,
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raw_ostream &O);
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void printPostIdxRegOperand(const MCInst *MI, unsigned OpNum, raw_ostream &O);
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void printPostIdxImm8s4Operand(const MCInst *MI, unsigned OpNum,
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raw_ostream &O);
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void printLdStmModeOperand(const MCInst *MI, unsigned OpNum, raw_ostream &O);
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template <bool AlwaysPrintImm0>
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void printAddrMode5Operand(const MCInst *MI, unsigned OpNum, raw_ostream &O);
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void printAddrMode6Operand(const MCInst *MI, unsigned OpNum, raw_ostream &O);
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void printAddrMode7Operand(const MCInst *MI, unsigned OpNum, raw_ostream &O);
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void printAddrMode6OffsetOperand(const MCInst *MI, unsigned OpNum,
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raw_ostream &O);
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void printBitfieldInvMaskImmOperand(const MCInst *MI, unsigned OpNum,
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raw_ostream &O);
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void printMemBOption(const MCInst *MI, unsigned OpNum, raw_ostream &O);
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void printInstSyncBOption(const MCInst *MI, unsigned OpNum, raw_ostream &O);
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void printShiftImmOperand(const MCInst *MI, unsigned OpNum, raw_ostream &O);
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void printPKHLSLShiftImm(const MCInst *MI, unsigned OpNum, raw_ostream &O);
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void printPKHASRShiftImm(const MCInst *MI, unsigned OpNum, raw_ostream &O);
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template <unsigned scale>
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void printAdrLabelOperand(const MCInst *MI, unsigned OpNum, raw_ostream &O);
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void printThumbS4ImmOperand(const MCInst *MI, unsigned OpNum, raw_ostream &O);
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void printThumbSRImm(const MCInst *MI, unsigned OpNum, raw_ostream &O);
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void printThumbITMask(const MCInst *MI, unsigned OpNum, raw_ostream &O);
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void printThumbAddrModeRROperand(const MCInst *MI, unsigned OpNum,
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raw_ostream &O);
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void printThumbAddrModeImm5SOperand(const MCInst *MI, unsigned OpNum,
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raw_ostream &O, unsigned Scale);
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void printThumbAddrModeImm5S1Operand(const MCInst *MI, unsigned OpNum,
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raw_ostream &O);
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void printThumbAddrModeImm5S2Operand(const MCInst *MI, unsigned OpNum,
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raw_ostream &O);
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void printThumbAddrModeImm5S4Operand(const MCInst *MI, unsigned OpNum,
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raw_ostream &O);
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void printThumbAddrModeSPOperand(const MCInst *MI, unsigned OpNum,
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raw_ostream &O);
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void printT2SOOperand(const MCInst *MI, unsigned OpNum, raw_ostream &O);
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template<bool AlwaysPrintImm0>
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void printAddrModeImm12Operand(const MCInst *MI, unsigned OpNum,
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raw_ostream &O);
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template<bool AlwaysPrintImm0>
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void printT2AddrModeImm8Operand(const MCInst *MI, unsigned OpNum,
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raw_ostream &O);
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template<bool AlwaysPrintImm0>
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void printT2AddrModeImm8s4Operand(const MCInst *MI, unsigned OpNum,
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raw_ostream &O);
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void printT2AddrModeImm0_1020s4Operand(const MCInst *MI, unsigned OpNum,
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raw_ostream &O);
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void printT2AddrModeImm8OffsetOperand(const MCInst *MI, unsigned OpNum,
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raw_ostream &O);
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void printT2AddrModeImm8s4OffsetOperand(const MCInst *MI, unsigned OpNum,
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raw_ostream &O);
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void printT2AddrModeSoRegOperand(const MCInst *MI, unsigned OpNum,
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raw_ostream &O);
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void printSetendOperand(const MCInst *MI, unsigned OpNum, raw_ostream &O);
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void printCPSIMod(const MCInst *MI, unsigned OpNum, raw_ostream &O);
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void printCPSIFlag(const MCInst *MI, unsigned OpNum, raw_ostream &O);
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void printMSRMaskOperand(const MCInst *MI, unsigned OpNum, raw_ostream &O);
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void printBankedRegOperand(const MCInst *MI, unsigned OpNum, raw_ostream &O);
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void printPredicateOperand(const MCInst *MI, unsigned OpNum, raw_ostream &O);
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void printMandatoryPredicateOperand(const MCInst *MI, unsigned OpNum,
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raw_ostream &O);
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void printSBitModifierOperand(const MCInst *MI, unsigned OpNum,
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raw_ostream &O);
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void printRegisterList(const MCInst *MI, unsigned OpNum, raw_ostream &O);
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void printNoHashImmediate(const MCInst *MI, unsigned OpNum, raw_ostream &O);
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void printPImmediate(const MCInst *MI, unsigned OpNum, raw_ostream &O);
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void printCImmediate(const MCInst *MI, unsigned OpNum, raw_ostream &O);
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void printCoprocOptionImm(const MCInst *MI, unsigned OpNum, raw_ostream &O);
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void printFPImmOperand(const MCInst *MI, unsigned OpNum, raw_ostream &O);
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void printNEONModImmOperand(const MCInst *MI, unsigned OpNum, raw_ostream &O);
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void printImmPlusOneOperand(const MCInst *MI, unsigned OpNum, raw_ostream &O);
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void printRotImmOperand(const MCInst *MI, unsigned OpNum, raw_ostream &O);
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void printModImmOperand(const MCInst *MI, unsigned OpNum, raw_ostream &O);
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void printGPRPairOperand(const MCInst *MI, unsigned OpNum, raw_ostream &O);
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void printPCLabel(const MCInst *MI, unsigned OpNum, raw_ostream &O);
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void printThumbLdrLabelOperand(const MCInst *MI, unsigned OpNum,
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raw_ostream &O);
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void printFBits16(const MCInst *MI, unsigned OpNum, raw_ostream &O);
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void printFBits32(const MCInst *MI, unsigned OpNum, raw_ostream &O);
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void printVectorIndex(const MCInst *MI, unsigned OpNum, raw_ostream &O);
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void printVectorListOne(const MCInst *MI, unsigned OpNum, raw_ostream &O);
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void printVectorListTwo(const MCInst *MI, unsigned OpNum, raw_ostream &O);
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void printVectorListTwoSpaced(const MCInst *MI, unsigned OpNum,
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raw_ostream &O);
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void printVectorListThree(const MCInst *MI, unsigned OpNum, raw_ostream &O);
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void printVectorListFour(const MCInst *MI, unsigned OpNum, raw_ostream &O);
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void printVectorListOneAllLanes(const MCInst *MI, unsigned OpNum,
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raw_ostream &O);
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void printVectorListTwoAllLanes(const MCInst *MI, unsigned OpNum,
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raw_ostream &O);
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void printVectorListThreeAllLanes(const MCInst *MI, unsigned OpNum,
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raw_ostream &O);
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void printVectorListFourAllLanes(const MCInst *MI, unsigned OpNum,
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raw_ostream &O);
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void printVectorListTwoSpacedAllLanes(const MCInst *MI, unsigned OpNum,
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raw_ostream &O);
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void printVectorListThreeSpacedAllLanes(const MCInst *MI, unsigned OpNum,
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raw_ostream &O);
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void printVectorListFourSpacedAllLanes(const MCInst *MI, unsigned OpNum,
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raw_ostream &O);
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void printVectorListThreeSpaced(const MCInst *MI, unsigned OpNum,
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raw_ostream &O);
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void printVectorListFourSpaced(const MCInst *MI, unsigned OpNum,
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raw_ostream &O);
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};
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} // end namespace llvm
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#endif
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