mirror of
https://github.com/c64scene-ar/llvm-6502.git
synced 2024-07-28 20:29:21 +00:00
242c9f4615
These instructions are deprecated oddities, but we still need to be able to disassemble (and reassemble) them if and when they're encountered. Patch by Amaury de la Vieuville. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@183011 91177308-0d34-0410-b5e6-96231b3b80d8
2115 lines
71 KiB
TableGen
2115 lines
71 KiB
TableGen
//===-- ARMInstrFormats.td - ARM Instruction Formats -------*- tablegen -*-===//
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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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//
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// ARM Instruction Format Definitions.
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//
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// Format specifies the encoding used by the instruction. This is part of the
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// ad-hoc solution used to emit machine instruction encodings by our machine
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// code emitter.
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class Format<bits<6> val> {
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bits<6> Value = val;
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}
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def Pseudo : Format<0>;
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def MulFrm : Format<1>;
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def BrFrm : Format<2>;
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def BrMiscFrm : Format<3>;
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def DPFrm : Format<4>;
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def DPSoRegRegFrm : Format<5>;
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def LdFrm : Format<6>;
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def StFrm : Format<7>;
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def LdMiscFrm : Format<8>;
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def StMiscFrm : Format<9>;
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def LdStMulFrm : Format<10>;
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def LdStExFrm : Format<11>;
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def ArithMiscFrm : Format<12>;
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def SatFrm : Format<13>;
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def ExtFrm : Format<14>;
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def VFPUnaryFrm : Format<15>;
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def VFPBinaryFrm : Format<16>;
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def VFPConv1Frm : Format<17>;
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def VFPConv2Frm : Format<18>;
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def VFPConv3Frm : Format<19>;
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def VFPConv4Frm : Format<20>;
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def VFPConv5Frm : Format<21>;
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def VFPLdStFrm : Format<22>;
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def VFPLdStMulFrm : Format<23>;
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def VFPMiscFrm : Format<24>;
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def ThumbFrm : Format<25>;
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def MiscFrm : Format<26>;
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def NGetLnFrm : Format<27>;
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def NSetLnFrm : Format<28>;
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def NDupFrm : Format<29>;
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def NLdStFrm : Format<30>;
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def N1RegModImmFrm: Format<31>;
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def N2RegFrm : Format<32>;
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def NVCVTFrm : Format<33>;
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def NVDupLnFrm : Format<34>;
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def N2RegVShLFrm : Format<35>;
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def N2RegVShRFrm : Format<36>;
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def N3RegFrm : Format<37>;
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def N3RegVShFrm : Format<38>;
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def NVExtFrm : Format<39>;
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def NVMulSLFrm : Format<40>;
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def NVTBLFrm : Format<41>;
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def DPSoRegImmFrm : Format<42>;
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// Misc flags.
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// The instruction has an Rn register operand.
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// UnaryDP - Indicates this is a unary data processing instruction, i.e.
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// it doesn't have a Rn operand.
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class UnaryDP { bit isUnaryDataProc = 1; }
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// Xform16Bit - Indicates this Thumb2 instruction may be transformed into
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// a 16-bit Thumb instruction if certain conditions are met.
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class Xform16Bit { bit canXformTo16Bit = 1; }
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//===----------------------------------------------------------------------===//
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// ARM Instruction flags. These need to match ARMBaseInstrInfo.h.
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//
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// FIXME: Once the JIT is MC-ized, these can go away.
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// Addressing mode.
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class AddrMode<bits<5> val> {
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bits<5> Value = val;
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}
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def AddrModeNone : AddrMode<0>;
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def AddrMode1 : AddrMode<1>;
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def AddrMode2 : AddrMode<2>;
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def AddrMode3 : AddrMode<3>;
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def AddrMode4 : AddrMode<4>;
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def AddrMode5 : AddrMode<5>;
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def AddrMode6 : AddrMode<6>;
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def AddrModeT1_1 : AddrMode<7>;
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def AddrModeT1_2 : AddrMode<8>;
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def AddrModeT1_4 : AddrMode<9>;
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def AddrModeT1_s : AddrMode<10>;
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def AddrModeT2_i12 : AddrMode<11>;
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def AddrModeT2_i8 : AddrMode<12>;
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def AddrModeT2_so : AddrMode<13>;
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def AddrModeT2_pc : AddrMode<14>;
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def AddrModeT2_i8s4 : AddrMode<15>;
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def AddrMode_i12 : AddrMode<16>;
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// Load / store index mode.
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class IndexMode<bits<2> val> {
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bits<2> Value = val;
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}
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def IndexModeNone : IndexMode<0>;
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def IndexModePre : IndexMode<1>;
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def IndexModePost : IndexMode<2>;
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def IndexModeUpd : IndexMode<3>;
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// Instruction execution domain.
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class Domain<bits<3> val> {
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bits<3> Value = val;
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}
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def GenericDomain : Domain<0>;
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def VFPDomain : Domain<1>; // Instructions in VFP domain only
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def NeonDomain : Domain<2>; // Instructions in Neon domain only
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def VFPNeonDomain : Domain<3>; // Instructions in both VFP & Neon domains
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def VFPNeonA8Domain : Domain<5>; // Instructions in VFP & Neon under A8
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//===----------------------------------------------------------------------===//
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// ARM special operands.
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//
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// ARM imod and iflag operands, used only by the CPS instruction.
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def imod_op : Operand<i32> {
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let PrintMethod = "printCPSIMod";
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}
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def ProcIFlagsOperand : AsmOperandClass {
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let Name = "ProcIFlags";
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let ParserMethod = "parseProcIFlagsOperand";
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}
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def iflags_op : Operand<i32> {
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let PrintMethod = "printCPSIFlag";
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let ParserMatchClass = ProcIFlagsOperand;
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}
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// ARM Predicate operand. Default to 14 = always (AL). Second part is CC
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// register whose default is 0 (no register).
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def CondCodeOperand : AsmOperandClass { let Name = "CondCode"; }
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def pred : PredicateOperand<OtherVT, (ops i32imm, i32imm),
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(ops (i32 14), (i32 zero_reg))> {
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let PrintMethod = "printPredicateOperand";
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let ParserMatchClass = CondCodeOperand;
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let DecoderMethod = "DecodePredicateOperand";
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}
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// Conditional code result for instructions whose 's' bit is set, e.g. subs.
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def CCOutOperand : AsmOperandClass { let Name = "CCOut"; }
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def cc_out : OptionalDefOperand<OtherVT, (ops CCR), (ops (i32 zero_reg))> {
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let EncoderMethod = "getCCOutOpValue";
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let PrintMethod = "printSBitModifierOperand";
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let ParserMatchClass = CCOutOperand;
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let DecoderMethod = "DecodeCCOutOperand";
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}
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// Same as cc_out except it defaults to setting CPSR.
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def s_cc_out : OptionalDefOperand<OtherVT, (ops CCR), (ops (i32 CPSR))> {
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let EncoderMethod = "getCCOutOpValue";
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let PrintMethod = "printSBitModifierOperand";
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let ParserMatchClass = CCOutOperand;
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let DecoderMethod = "DecodeCCOutOperand";
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}
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// ARM special operands for disassembly only.
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//
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def SetEndAsmOperand : ImmAsmOperand {
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let Name = "SetEndImm";
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let ParserMethod = "parseSetEndImm";
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}
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def setend_op : Operand<i32> {
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let PrintMethod = "printSetendOperand";
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let ParserMatchClass = SetEndAsmOperand;
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}
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def MSRMaskOperand : AsmOperandClass {
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let Name = "MSRMask";
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let ParserMethod = "parseMSRMaskOperand";
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}
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def msr_mask : Operand<i32> {
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let PrintMethod = "printMSRMaskOperand";
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let DecoderMethod = "DecodeMSRMask";
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let ParserMatchClass = MSRMaskOperand;
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}
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// Shift Right Immediate - A shift right immediate is encoded differently from
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// other shift immediates. The imm6 field is encoded like so:
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//
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// Offset Encoding
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// 8 imm6<5:3> = '001', 8 - <imm> is encoded in imm6<2:0>
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// 16 imm6<5:4> = '01', 16 - <imm> is encoded in imm6<3:0>
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// 32 imm6<5> = '1', 32 - <imm> is encoded in imm6<4:0>
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// 64 64 - <imm> is encoded in imm6<5:0>
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def shr_imm8_asm_operand : ImmAsmOperand { let Name = "ShrImm8"; }
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def shr_imm8 : Operand<i32> {
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let EncoderMethod = "getShiftRight8Imm";
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let DecoderMethod = "DecodeShiftRight8Imm";
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let ParserMatchClass = shr_imm8_asm_operand;
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}
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def shr_imm16_asm_operand : ImmAsmOperand { let Name = "ShrImm16"; }
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def shr_imm16 : Operand<i32> {
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let EncoderMethod = "getShiftRight16Imm";
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let DecoderMethod = "DecodeShiftRight16Imm";
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let ParserMatchClass = shr_imm16_asm_operand;
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}
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def shr_imm32_asm_operand : ImmAsmOperand { let Name = "ShrImm32"; }
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def shr_imm32 : Operand<i32> {
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let EncoderMethod = "getShiftRight32Imm";
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let DecoderMethod = "DecodeShiftRight32Imm";
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let ParserMatchClass = shr_imm32_asm_operand;
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}
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def shr_imm64_asm_operand : ImmAsmOperand { let Name = "ShrImm64"; }
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def shr_imm64 : Operand<i32> {
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let EncoderMethod = "getShiftRight64Imm";
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let DecoderMethod = "DecodeShiftRight64Imm";
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let ParserMatchClass = shr_imm64_asm_operand;
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}
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//===----------------------------------------------------------------------===//
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// ARM Assembler alias templates.
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//
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class ARMInstAlias<string Asm, dag Result, bit Emit = 0b1>
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: InstAlias<Asm, Result, Emit>, Requires<[IsARM]>;
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class tInstAlias<string Asm, dag Result, bit Emit = 0b1>
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: InstAlias<Asm, Result, Emit>, Requires<[IsThumb]>;
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class t2InstAlias<string Asm, dag Result, bit Emit = 0b1>
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: InstAlias<Asm, Result, Emit>, Requires<[IsThumb2]>;
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class VFP2InstAlias<string Asm, dag Result, bit Emit = 0b1>
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: InstAlias<Asm, Result, Emit>, Requires<[HasVFP2]>;
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class VFP3InstAlias<string Asm, dag Result, bit Emit = 0b1>
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: InstAlias<Asm, Result, Emit>, Requires<[HasVFP3]>;
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class NEONInstAlias<string Asm, dag Result, bit Emit = 0b1>
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: InstAlias<Asm, Result, Emit>, Requires<[HasNEON]>;
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class VFP2MnemonicAlias<string src, string dst> : MnemonicAlias<src, dst>,
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Requires<[HasVFP2]>;
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class NEONMnemonicAlias<string src, string dst> : MnemonicAlias<src, dst>,
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Requires<[HasNEON]>;
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//===----------------------------------------------------------------------===//
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// ARM Instruction templates.
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//
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class InstTemplate<AddrMode am, int sz, IndexMode im,
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Format f, Domain d, string cstr, InstrItinClass itin>
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: Instruction {
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let Namespace = "ARM";
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AddrMode AM = am;
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int Size = sz;
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IndexMode IM = im;
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bits<2> IndexModeBits = IM.Value;
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Format F = f;
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bits<6> Form = F.Value;
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Domain D = d;
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bit isUnaryDataProc = 0;
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bit canXformTo16Bit = 0;
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// The instruction is a 16-bit flag setting Thumb instruction. Used
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// by the parser to determine whether to require the 'S' suffix on the
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// mnemonic (when not in an IT block) or preclude it (when in an IT block).
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bit thumbArithFlagSetting = 0;
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// If this is a pseudo instruction, mark it isCodeGenOnly.
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let isCodeGenOnly = !eq(!cast<string>(f), "Pseudo");
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// The layout of TSFlags should be kept in sync with ARMBaseInfo.h.
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let TSFlags{4-0} = AM.Value;
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let TSFlags{6-5} = IndexModeBits;
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let TSFlags{12-7} = Form;
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let TSFlags{13} = isUnaryDataProc;
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let TSFlags{14} = canXformTo16Bit;
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let TSFlags{17-15} = D.Value;
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let TSFlags{18} = thumbArithFlagSetting;
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let Constraints = cstr;
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let Itinerary = itin;
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}
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class Encoding {
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field bits<32> Inst;
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// Mask of bits that cause an encoding to be UNPREDICTABLE.
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// If a bit is set, then if the corresponding bit in the
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// target encoding differs from its value in the "Inst" field,
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// the instruction is UNPREDICTABLE (SoftFail in abstract parlance).
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field bits<32> Unpredictable = 0;
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// SoftFail is the generic name for this field, but we alias it so
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// as to make it more obvious what it means in ARM-land.
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field bits<32> SoftFail = Unpredictable;
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}
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class InstARM<AddrMode am, int sz, IndexMode im,
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Format f, Domain d, string cstr, InstrItinClass itin>
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: InstTemplate<am, sz, im, f, d, cstr, itin>, Encoding {
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let DecoderNamespace = "ARM";
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}
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// This Encoding-less class is used by Thumb1 to specify the encoding bits later
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// on by adding flavors to specific instructions.
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class InstThumb<AddrMode am, int sz, IndexMode im,
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Format f, Domain d, string cstr, InstrItinClass itin>
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: InstTemplate<am, sz, im, f, d, cstr, itin> {
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let DecoderNamespace = "Thumb";
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}
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// Pseudo-instructions for alternate assembly syntax (never used by codegen).
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// These are aliases that require C++ handling to convert to the target
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// instruction, while InstAliases can be handled directly by tblgen.
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class AsmPseudoInst<string asm, dag iops>
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: InstTemplate<AddrModeNone, 0, IndexModeNone, Pseudo, GenericDomain,
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"", NoItinerary> {
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let OutOperandList = (outs);
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let InOperandList = iops;
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let Pattern = [];
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let isCodeGenOnly = 0; // So we get asm matcher for it.
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let AsmString = asm;
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let isPseudo = 1;
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}
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class ARMAsmPseudo<string asm, dag iops> : AsmPseudoInst<asm, iops>,
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Requires<[IsARM]>;
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class tAsmPseudo<string asm, dag iops> : AsmPseudoInst<asm, iops>,
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Requires<[IsThumb]>;
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class t2AsmPseudo<string asm, dag iops> : AsmPseudoInst<asm, iops>,
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Requires<[IsThumb2]>;
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class VFP2AsmPseudo<string asm, dag iops> : AsmPseudoInst<asm, iops>,
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Requires<[HasVFP2]>;
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class NEONAsmPseudo<string asm, dag iops> : AsmPseudoInst<asm, iops>,
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Requires<[HasNEON]>;
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// Pseudo instructions for the code generator.
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class PseudoInst<dag oops, dag iops, InstrItinClass itin, list<dag> pattern>
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: InstTemplate<AddrModeNone, 0, IndexModeNone, Pseudo,
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GenericDomain, "", itin> {
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let OutOperandList = oops;
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let InOperandList = iops;
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let Pattern = pattern;
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let isCodeGenOnly = 1;
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let isPseudo = 1;
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}
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// PseudoInst that's ARM-mode only.
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class ARMPseudoInst<dag oops, dag iops, int sz, InstrItinClass itin,
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list<dag> pattern>
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: PseudoInst<oops, iops, itin, pattern> {
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let Size = sz;
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list<Predicate> Predicates = [IsARM];
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}
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// PseudoInst that's Thumb-mode only.
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class tPseudoInst<dag oops, dag iops, int sz, InstrItinClass itin,
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list<dag> pattern>
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: PseudoInst<oops, iops, itin, pattern> {
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let Size = sz;
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list<Predicate> Predicates = [IsThumb];
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}
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// PseudoInst that's Thumb2-mode only.
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class t2PseudoInst<dag oops, dag iops, int sz, InstrItinClass itin,
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list<dag> pattern>
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: PseudoInst<oops, iops, itin, pattern> {
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let Size = sz;
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list<Predicate> Predicates = [IsThumb2];
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}
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class ARMPseudoExpand<dag oops, dag iops, int sz,
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InstrItinClass itin, list<dag> pattern,
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dag Result>
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: ARMPseudoInst<oops, iops, sz, itin, pattern>,
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PseudoInstExpansion<Result>;
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class tPseudoExpand<dag oops, dag iops, int sz,
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InstrItinClass itin, list<dag> pattern,
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dag Result>
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: tPseudoInst<oops, iops, sz, itin, pattern>,
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PseudoInstExpansion<Result>;
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class t2PseudoExpand<dag oops, dag iops, int sz,
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InstrItinClass itin, list<dag> pattern,
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dag Result>
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: t2PseudoInst<oops, iops, sz, itin, pattern>,
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PseudoInstExpansion<Result>;
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// Almost all ARM instructions are predicable.
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class I<dag oops, dag iops, AddrMode am, int sz,
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IndexMode im, Format f, InstrItinClass itin,
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string opc, string asm, string cstr,
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list<dag> pattern>
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: InstARM<am, sz, im, f, GenericDomain, cstr, itin> {
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bits<4> p;
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let Inst{31-28} = p;
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let OutOperandList = oops;
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let InOperandList = !con(iops, (ins pred:$p));
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let AsmString = !strconcat(opc, "${p}", asm);
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let Pattern = pattern;
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list<Predicate> Predicates = [IsARM];
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}
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// A few are not predicable
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class InoP<dag oops, dag iops, AddrMode am, int sz,
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IndexMode im, Format f, InstrItinClass itin,
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string opc, string asm, string cstr,
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list<dag> pattern>
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: InstARM<am, sz, im, f, GenericDomain, cstr, itin> {
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let OutOperandList = oops;
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let InOperandList = iops;
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let AsmString = !strconcat(opc, asm);
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let Pattern = pattern;
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let isPredicable = 0;
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list<Predicate> Predicates = [IsARM];
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}
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// Same as I except it can optionally modify CPSR. Note it's modeled as an input
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// operand since by default it's a zero register. It will become an implicit def
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// once it's "flipped".
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class sI<dag oops, dag iops, AddrMode am, int sz,
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IndexMode im, Format f, InstrItinClass itin,
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string opc, string asm, string cstr,
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list<dag> pattern>
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: InstARM<am, sz, im, f, GenericDomain, cstr, itin> {
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bits<4> p; // Predicate operand
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bits<1> s; // condition-code set flag ('1' if the insn should set the flags)
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let Inst{31-28} = p;
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let Inst{20} = s;
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let OutOperandList = oops;
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let InOperandList = !con(iops, (ins pred:$p, cc_out:$s));
|
|
let AsmString = !strconcat(opc, "${s}${p}", asm);
|
|
let Pattern = pattern;
|
|
list<Predicate> Predicates = [IsARM];
|
|
}
|
|
|
|
// Special cases
|
|
class XI<dag oops, dag iops, AddrMode am, int sz,
|
|
IndexMode im, Format f, InstrItinClass itin,
|
|
string asm, string cstr, list<dag> pattern>
|
|
: InstARM<am, sz, im, f, GenericDomain, cstr, itin> {
|
|
let OutOperandList = oops;
|
|
let InOperandList = iops;
|
|
let AsmString = asm;
|
|
let Pattern = pattern;
|
|
list<Predicate> Predicates = [IsARM];
|
|
}
|
|
|
|
class AI<dag oops, dag iops, Format f, InstrItinClass itin,
|
|
string opc, string asm, list<dag> pattern>
|
|
: I<oops, iops, AddrModeNone, 4, IndexModeNone, f, itin,
|
|
opc, asm, "", pattern>;
|
|
class AsI<dag oops, dag iops, Format f, InstrItinClass itin,
|
|
string opc, string asm, list<dag> pattern>
|
|
: sI<oops, iops, AddrModeNone, 4, IndexModeNone, f, itin,
|
|
opc, asm, "", pattern>;
|
|
class AXI<dag oops, dag iops, Format f, InstrItinClass itin,
|
|
string asm, list<dag> pattern>
|
|
: XI<oops, iops, AddrModeNone, 4, IndexModeNone, f, itin,
|
|
asm, "", pattern>;
|
|
class AInoP<dag oops, dag iops, Format f, InstrItinClass itin,
|
|
string opc, string asm, list<dag> pattern>
|
|
: InoP<oops, iops, AddrModeNone, 4, IndexModeNone, f, itin,
|
|
opc, asm, "", pattern>;
|
|
|
|
// Ctrl flow instructions
|
|
class ABI<bits<4> opcod, dag oops, dag iops, InstrItinClass itin,
|
|
string opc, string asm, list<dag> pattern>
|
|
: I<oops, iops, AddrModeNone, 4, IndexModeNone, BrFrm, itin,
|
|
opc, asm, "", pattern> {
|
|
let Inst{27-24} = opcod;
|
|
}
|
|
class ABXI<bits<4> opcod, dag oops, dag iops, InstrItinClass itin,
|
|
string asm, list<dag> pattern>
|
|
: XI<oops, iops, AddrModeNone, 4, IndexModeNone, BrFrm, itin,
|
|
asm, "", pattern> {
|
|
let Inst{27-24} = opcod;
|
|
}
|
|
|
|
// BR_JT instructions
|
|
class JTI<dag oops, dag iops, InstrItinClass itin,
|
|
string asm, list<dag> pattern>
|
|
: XI<oops, iops, AddrModeNone, 0, IndexModeNone, BrMiscFrm, itin,
|
|
asm, "", pattern>;
|
|
|
|
// Atomic load/store instructions
|
|
class AIldrex<bits<2> opcod, dag oops, dag iops, InstrItinClass itin,
|
|
string opc, string asm, list<dag> pattern>
|
|
: I<oops, iops, AddrModeNone, 4, IndexModeNone, LdStExFrm, itin,
|
|
opc, asm, "", pattern> {
|
|
bits<4> Rt;
|
|
bits<4> addr;
|
|
let Inst{27-23} = 0b00011;
|
|
let Inst{22-21} = opcod;
|
|
let Inst{20} = 1;
|
|
let Inst{19-16} = addr;
|
|
let Inst{15-12} = Rt;
|
|
let Inst{11-0} = 0b111110011111;
|
|
}
|
|
class AIstrex<bits<2> opcod, dag oops, dag iops, InstrItinClass itin,
|
|
string opc, string asm, list<dag> pattern>
|
|
: I<oops, iops, AddrModeNone, 4, IndexModeNone, LdStExFrm, itin,
|
|
opc, asm, "", pattern> {
|
|
bits<4> Rd;
|
|
bits<4> Rt;
|
|
bits<4> addr;
|
|
let Inst{27-23} = 0b00011;
|
|
let Inst{22-21} = opcod;
|
|
let Inst{20} = 0;
|
|
let Inst{19-16} = addr;
|
|
let Inst{15-12} = Rd;
|
|
let Inst{11-4} = 0b11111001;
|
|
let Inst{3-0} = Rt;
|
|
}
|
|
class AIswp<bit b, dag oops, dag iops, string opc, list<dag> pattern>
|
|
: AI<oops, iops, MiscFrm, NoItinerary, opc, "\t$Rt, $Rt2, $addr", pattern> {
|
|
bits<4> Rt;
|
|
bits<4> Rt2;
|
|
bits<4> addr;
|
|
let Inst{27-23} = 0b00010;
|
|
let Inst{22} = b;
|
|
let Inst{21-20} = 0b00;
|
|
let Inst{19-16} = addr;
|
|
let Inst{15-12} = Rt;
|
|
let Inst{11-4} = 0b00001001;
|
|
let Inst{3-0} = Rt2;
|
|
|
|
let Unpredictable{11-8} = 0b1111;
|
|
let DecoderMethod = "DecodeSwap";
|
|
}
|
|
|
|
// addrmode1 instructions
|
|
class AI1<bits<4> opcod, dag oops, dag iops, Format f, InstrItinClass itin,
|
|
string opc, string asm, list<dag> pattern>
|
|
: I<oops, iops, AddrMode1, 4, IndexModeNone, f, itin,
|
|
opc, asm, "", pattern> {
|
|
let Inst{24-21} = opcod;
|
|
let Inst{27-26} = 0b00;
|
|
}
|
|
class AsI1<bits<4> opcod, dag oops, dag iops, Format f, InstrItinClass itin,
|
|
string opc, string asm, list<dag> pattern>
|
|
: sI<oops, iops, AddrMode1, 4, IndexModeNone, f, itin,
|
|
opc, asm, "", pattern> {
|
|
let Inst{24-21} = opcod;
|
|
let Inst{27-26} = 0b00;
|
|
}
|
|
class AXI1<bits<4> opcod, dag oops, dag iops, Format f, InstrItinClass itin,
|
|
string asm, list<dag> pattern>
|
|
: XI<oops, iops, AddrMode1, 4, IndexModeNone, f, itin,
|
|
asm, "", pattern> {
|
|
let Inst{24-21} = opcod;
|
|
let Inst{27-26} = 0b00;
|
|
}
|
|
|
|
// loads
|
|
|
|
// LDR/LDRB/STR/STRB/...
|
|
class AI2ldst<bits<3> op, bit isLd, bit isByte, dag oops, dag iops, AddrMode am,
|
|
Format f, InstrItinClass itin, string opc, string asm,
|
|
list<dag> pattern>
|
|
: I<oops, iops, am, 4, IndexModeNone, f, itin, opc, asm,
|
|
"", pattern> {
|
|
let Inst{27-25} = op;
|
|
let Inst{24} = 1; // 24 == P
|
|
// 23 == U
|
|
let Inst{22} = isByte;
|
|
let Inst{21} = 0; // 21 == W
|
|
let Inst{20} = isLd;
|
|
}
|
|
// Indexed load/stores
|
|
class AI2ldstidx<bit isLd, bit isByte, bit isPre, dag oops, dag iops,
|
|
IndexMode im, Format f, InstrItinClass itin, string opc,
|
|
string asm, string cstr, list<dag> pattern>
|
|
: I<oops, iops, AddrMode2, 4, im, f, itin,
|
|
opc, asm, cstr, pattern> {
|
|
bits<4> Rt;
|
|
let Inst{27-26} = 0b01;
|
|
let Inst{24} = isPre; // P bit
|
|
let Inst{22} = isByte; // B bit
|
|
let Inst{21} = isPre; // W bit
|
|
let Inst{20} = isLd; // L bit
|
|
let Inst{15-12} = Rt;
|
|
}
|
|
class AI2stridx_reg<bit isByte, bit isPre, dag oops, dag iops,
|
|
IndexMode im, Format f, InstrItinClass itin, string opc,
|
|
string asm, string cstr, list<dag> pattern>
|
|
: AI2ldstidx<0, isByte, isPre, oops, iops, im, f, itin, opc, asm, cstr,
|
|
pattern> {
|
|
// AM2 store w/ two operands: (GPR, am2offset)
|
|
// {12} isAdd
|
|
// {11-0} imm12/Rm
|
|
bits<14> offset;
|
|
bits<4> Rn;
|
|
let Inst{25} = 1;
|
|
let Inst{23} = offset{12};
|
|
let Inst{19-16} = Rn;
|
|
let Inst{11-5} = offset{11-5};
|
|
let Inst{4} = 0;
|
|
let Inst{3-0} = offset{3-0};
|
|
}
|
|
|
|
class AI2stridx_imm<bit isByte, bit isPre, dag oops, dag iops,
|
|
IndexMode im, Format f, InstrItinClass itin, string opc,
|
|
string asm, string cstr, list<dag> pattern>
|
|
: AI2ldstidx<0, isByte, isPre, oops, iops, im, f, itin, opc, asm, cstr,
|
|
pattern> {
|
|
// AM2 store w/ two operands: (GPR, am2offset)
|
|
// {12} isAdd
|
|
// {11-0} imm12/Rm
|
|
bits<14> offset;
|
|
bits<4> Rn;
|
|
let Inst{25} = 0;
|
|
let Inst{23} = offset{12};
|
|
let Inst{19-16} = Rn;
|
|
let Inst{11-0} = offset{11-0};
|
|
}
|
|
|
|
|
|
// FIXME: Merge with the above class when addrmode2 gets used for STR, STRB
|
|
// but for now use this class for STRT and STRBT.
|
|
class AI2stridxT<bit isByte, bit isPre, dag oops, dag iops,
|
|
IndexMode im, Format f, InstrItinClass itin, string opc,
|
|
string asm, string cstr, list<dag> pattern>
|
|
: AI2ldstidx<0, isByte, isPre, oops, iops, im, f, itin, opc, asm, cstr,
|
|
pattern> {
|
|
// AM2 store w/ two operands: (GPR, am2offset)
|
|
// {17-14} Rn
|
|
// {13} 1 == Rm, 0 == imm12
|
|
// {12} isAdd
|
|
// {11-0} imm12/Rm
|
|
bits<18> addr;
|
|
let Inst{25} = addr{13};
|
|
let Inst{23} = addr{12};
|
|
let Inst{19-16} = addr{17-14};
|
|
let Inst{11-0} = addr{11-0};
|
|
}
|
|
|
|
// addrmode3 instructions
|
|
class AI3ld<bits<4> op, bit op20, dag oops, dag iops, Format f,
|
|
InstrItinClass itin, string opc, string asm, list<dag> pattern>
|
|
: I<oops, iops, AddrMode3, 4, IndexModeNone, f, itin,
|
|
opc, asm, "", pattern> {
|
|
bits<14> addr;
|
|
bits<4> Rt;
|
|
let Inst{27-25} = 0b000;
|
|
let Inst{24} = 1; // P bit
|
|
let Inst{23} = addr{8}; // U bit
|
|
let Inst{22} = addr{13}; // 1 == imm8, 0 == Rm
|
|
let Inst{21} = 0; // W bit
|
|
let Inst{20} = op20; // L bit
|
|
let Inst{19-16} = addr{12-9}; // Rn
|
|
let Inst{15-12} = Rt; // Rt
|
|
let Inst{11-8} = addr{7-4}; // imm7_4/zero
|
|
let Inst{7-4} = op;
|
|
let Inst{3-0} = addr{3-0}; // imm3_0/Rm
|
|
|
|
let DecoderMethod = "DecodeAddrMode3Instruction";
|
|
}
|
|
|
|
class AI3ldstidx<bits<4> op, bit op20, bit isPre, dag oops, dag iops,
|
|
IndexMode im, Format f, InstrItinClass itin, string opc,
|
|
string asm, string cstr, list<dag> pattern>
|
|
: I<oops, iops, AddrMode3, 4, im, f, itin,
|
|
opc, asm, cstr, pattern> {
|
|
bits<4> Rt;
|
|
let Inst{27-25} = 0b000;
|
|
let Inst{24} = isPre; // P bit
|
|
let Inst{21} = isPre; // W bit
|
|
let Inst{20} = op20; // L bit
|
|
let Inst{15-12} = Rt; // Rt
|
|
let Inst{7-4} = op;
|
|
}
|
|
|
|
// FIXME: Merge with the above class when addrmode2 gets used for LDR, LDRB
|
|
// but for now use this class for LDRSBT, LDRHT, LDSHT.
|
|
class AI3ldstidxT<bits<4> op, bit isLoad, dag oops, dag iops,
|
|
IndexMode im, Format f, InstrItinClass itin, string opc,
|
|
string asm, string cstr, list<dag> pattern>
|
|
: I<oops, iops, AddrMode3, 4, im, f, itin, opc, asm, cstr, pattern> {
|
|
// {13} 1 == imm8, 0 == Rm
|
|
// {12-9} Rn
|
|
// {8} isAdd
|
|
// {7-4} imm7_4/zero
|
|
// {3-0} imm3_0/Rm
|
|
bits<4> addr;
|
|
bits<4> Rt;
|
|
let Inst{27-25} = 0b000;
|
|
let Inst{24} = 0; // P bit
|
|
let Inst{21} = 1;
|
|
let Inst{20} = isLoad; // L bit
|
|
let Inst{19-16} = addr; // Rn
|
|
let Inst{15-12} = Rt; // Rt
|
|
let Inst{7-4} = op;
|
|
}
|
|
|
|
// stores
|
|
class AI3str<bits<4> op, dag oops, dag iops, Format f, InstrItinClass itin,
|
|
string opc, string asm, list<dag> pattern>
|
|
: I<oops, iops, AddrMode3, 4, IndexModeNone, f, itin,
|
|
opc, asm, "", pattern> {
|
|
bits<14> addr;
|
|
bits<4> Rt;
|
|
let Inst{27-25} = 0b000;
|
|
let Inst{24} = 1; // P bit
|
|
let Inst{23} = addr{8}; // U bit
|
|
let Inst{22} = addr{13}; // 1 == imm8, 0 == Rm
|
|
let Inst{21} = 0; // W bit
|
|
let Inst{20} = 0; // L bit
|
|
let Inst{19-16} = addr{12-9}; // Rn
|
|
let Inst{15-12} = Rt; // Rt
|
|
let Inst{11-8} = addr{7-4}; // imm7_4/zero
|
|
let Inst{7-4} = op;
|
|
let Inst{3-0} = addr{3-0}; // imm3_0/Rm
|
|
let DecoderMethod = "DecodeAddrMode3Instruction";
|
|
}
|
|
|
|
// addrmode4 instructions
|
|
class AXI4<dag oops, dag iops, IndexMode im, Format f, InstrItinClass itin,
|
|
string asm, string cstr, list<dag> pattern>
|
|
: XI<oops, iops, AddrMode4, 4, im, f, itin, asm, cstr, pattern> {
|
|
bits<4> p;
|
|
bits<16> regs;
|
|
bits<4> Rn;
|
|
let Inst{31-28} = p;
|
|
let Inst{27-25} = 0b100;
|
|
let Inst{22} = 0; // S bit
|
|
let Inst{19-16} = Rn;
|
|
let Inst{15-0} = regs;
|
|
}
|
|
|
|
// Unsigned multiply, multiply-accumulate instructions.
|
|
class AMul1I<bits<7> opcod, dag oops, dag iops, InstrItinClass itin,
|
|
string opc, string asm, list<dag> pattern>
|
|
: I<oops, iops, AddrModeNone, 4, IndexModeNone, MulFrm, itin,
|
|
opc, asm, "", pattern> {
|
|
let Inst{7-4} = 0b1001;
|
|
let Inst{20} = 0; // S bit
|
|
let Inst{27-21} = opcod;
|
|
}
|
|
class AsMul1I<bits<7> opcod, dag oops, dag iops, InstrItinClass itin,
|
|
string opc, string asm, list<dag> pattern>
|
|
: sI<oops, iops, AddrModeNone, 4, IndexModeNone, MulFrm, itin,
|
|
opc, asm, "", pattern> {
|
|
let Inst{7-4} = 0b1001;
|
|
let Inst{27-21} = opcod;
|
|
}
|
|
|
|
// Most significant word multiply
|
|
class AMul2I<bits<7> opcod, bits<4> opc7_4, dag oops, dag iops,
|
|
InstrItinClass itin, string opc, string asm, list<dag> pattern>
|
|
: I<oops, iops, AddrModeNone, 4, IndexModeNone, MulFrm, itin,
|
|
opc, asm, "", pattern> {
|
|
bits<4> Rd;
|
|
bits<4> Rn;
|
|
bits<4> Rm;
|
|
let Inst{7-4} = opc7_4;
|
|
let Inst{20} = 1;
|
|
let Inst{27-21} = opcod;
|
|
let Inst{19-16} = Rd;
|
|
let Inst{11-8} = Rm;
|
|
let Inst{3-0} = Rn;
|
|
}
|
|
// MSW multiple w/ Ra operand
|
|
class AMul2Ia<bits<7> opcod, bits<4> opc7_4, dag oops, dag iops,
|
|
InstrItinClass itin, string opc, string asm, list<dag> pattern>
|
|
: AMul2I<opcod, opc7_4, oops, iops, itin, opc, asm, pattern> {
|
|
bits<4> Ra;
|
|
let Inst{15-12} = Ra;
|
|
}
|
|
|
|
// SMUL<x><y> / SMULW<y> / SMLA<x><y> / SMLAW<x><y>
|
|
class AMulxyIbase<bits<7> opcod, bits<2> bit6_5, dag oops, dag iops,
|
|
InstrItinClass itin, string opc, string asm, list<dag> pattern>
|
|
: I<oops, iops, AddrModeNone, 4, IndexModeNone, MulFrm, itin,
|
|
opc, asm, "", pattern> {
|
|
bits<4> Rn;
|
|
bits<4> Rm;
|
|
let Inst{4} = 0;
|
|
let Inst{7} = 1;
|
|
let Inst{20} = 0;
|
|
let Inst{27-21} = opcod;
|
|
let Inst{6-5} = bit6_5;
|
|
let Inst{11-8} = Rm;
|
|
let Inst{3-0} = Rn;
|
|
}
|
|
class AMulxyI<bits<7> opcod, bits<2> bit6_5, dag oops, dag iops,
|
|
InstrItinClass itin, string opc, string asm, list<dag> pattern>
|
|
: AMulxyIbase<opcod, bit6_5, oops, iops, itin, opc, asm, pattern> {
|
|
bits<4> Rd;
|
|
let Inst{19-16} = Rd;
|
|
}
|
|
|
|
// AMulxyI with Ra operand
|
|
class AMulxyIa<bits<7> opcod, bits<2> bit6_5, dag oops, dag iops,
|
|
InstrItinClass itin, string opc, string asm, list<dag> pattern>
|
|
: AMulxyI<opcod, bit6_5, oops, iops, itin, opc, asm, pattern> {
|
|
bits<4> Ra;
|
|
let Inst{15-12} = Ra;
|
|
}
|
|
// SMLAL*
|
|
class AMulxyI64<bits<7> opcod, bits<2> bit6_5, dag oops, dag iops,
|
|
InstrItinClass itin, string opc, string asm, list<dag> pattern>
|
|
: AMulxyIbase<opcod, bit6_5, oops, iops, itin, opc, asm, pattern> {
|
|
bits<4> RdLo;
|
|
bits<4> RdHi;
|
|
let Inst{19-16} = RdHi;
|
|
let Inst{15-12} = RdLo;
|
|
}
|
|
|
|
// Extend instructions.
|
|
class AExtI<bits<8> opcod, dag oops, dag iops, InstrItinClass itin,
|
|
string opc, string asm, list<dag> pattern>
|
|
: I<oops, iops, AddrModeNone, 4, IndexModeNone, ExtFrm, itin,
|
|
opc, asm, "", pattern> {
|
|
// All AExtI instructions have Rd and Rm register operands.
|
|
bits<4> Rd;
|
|
bits<4> Rm;
|
|
let Inst{15-12} = Rd;
|
|
let Inst{3-0} = Rm;
|
|
let Inst{7-4} = 0b0111;
|
|
let Inst{9-8} = 0b00;
|
|
let Inst{27-20} = opcod;
|
|
|
|
let Unpredictable{9-8} = 0b11;
|
|
}
|
|
|
|
// Misc Arithmetic instructions.
|
|
class AMiscA1I<bits<8> opcod, bits<4> opc7_4, dag oops, dag iops,
|
|
InstrItinClass itin, string opc, string asm, list<dag> pattern>
|
|
: I<oops, iops, AddrModeNone, 4, IndexModeNone, ArithMiscFrm, itin,
|
|
opc, asm, "", pattern> {
|
|
bits<4> Rd;
|
|
bits<4> Rm;
|
|
let Inst{27-20} = opcod;
|
|
let Inst{19-16} = 0b1111;
|
|
let Inst{15-12} = Rd;
|
|
let Inst{11-8} = 0b1111;
|
|
let Inst{7-4} = opc7_4;
|
|
let Inst{3-0} = Rm;
|
|
}
|
|
|
|
// Division instructions.
|
|
class ADivA1I<bits<3> opcod, dag oops, dag iops,
|
|
InstrItinClass itin, string opc, string asm, list<dag> pattern>
|
|
: I<oops, iops, AddrModeNone, 4, IndexModeNone, ArithMiscFrm, itin,
|
|
opc, asm, "", pattern> {
|
|
bits<4> Rd;
|
|
bits<4> Rn;
|
|
bits<4> Rm;
|
|
let Inst{27-23} = 0b01110;
|
|
let Inst{22-20} = opcod;
|
|
let Inst{19-16} = Rd;
|
|
let Inst{15-12} = 0b1111;
|
|
let Inst{11-8} = Rm;
|
|
let Inst{7-4} = 0b0001;
|
|
let Inst{3-0} = Rn;
|
|
}
|
|
|
|
// PKH instructions
|
|
def PKHLSLAsmOperand : ImmAsmOperand {
|
|
let Name = "PKHLSLImm";
|
|
let ParserMethod = "parsePKHLSLImm";
|
|
}
|
|
def pkh_lsl_amt: Operand<i32>, ImmLeaf<i32, [{ return Imm >= 0 && Imm < 32; }]>{
|
|
let PrintMethod = "printPKHLSLShiftImm";
|
|
let ParserMatchClass = PKHLSLAsmOperand;
|
|
}
|
|
def PKHASRAsmOperand : AsmOperandClass {
|
|
let Name = "PKHASRImm";
|
|
let ParserMethod = "parsePKHASRImm";
|
|
}
|
|
def pkh_asr_amt: Operand<i32>, ImmLeaf<i32, [{ return Imm > 0 && Imm <= 32; }]>{
|
|
let PrintMethod = "printPKHASRShiftImm";
|
|
let ParserMatchClass = PKHASRAsmOperand;
|
|
}
|
|
|
|
class APKHI<bits<8> opcod, bit tb, dag oops, dag iops, InstrItinClass itin,
|
|
string opc, string asm, list<dag> pattern>
|
|
: I<oops, iops, AddrModeNone, 4, IndexModeNone, ArithMiscFrm, itin,
|
|
opc, asm, "", pattern> {
|
|
bits<4> Rd;
|
|
bits<4> Rn;
|
|
bits<4> Rm;
|
|
bits<5> sh;
|
|
let Inst{27-20} = opcod;
|
|
let Inst{19-16} = Rn;
|
|
let Inst{15-12} = Rd;
|
|
let Inst{11-7} = sh;
|
|
let Inst{6} = tb;
|
|
let Inst{5-4} = 0b01;
|
|
let Inst{3-0} = Rm;
|
|
}
|
|
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
// ARMPat - Same as Pat<>, but requires that the compiler be in ARM mode.
|
|
class ARMPat<dag pattern, dag result> : Pat<pattern, result> {
|
|
list<Predicate> Predicates = [IsARM];
|
|
}
|
|
class ARMV5TPat<dag pattern, dag result> : Pat<pattern, result> {
|
|
list<Predicate> Predicates = [IsARM, HasV5T];
|
|
}
|
|
class ARMV5TEPat<dag pattern, dag result> : Pat<pattern, result> {
|
|
list<Predicate> Predicates = [IsARM, HasV5TE];
|
|
}
|
|
// ARMV5MOPat - Same as ARMV5TEPat with UseMulOps.
|
|
class ARMV5MOPat<dag pattern, dag result> : Pat<pattern, result> {
|
|
list<Predicate> Predicates = [IsARM, HasV5TE, UseMulOps];
|
|
}
|
|
class ARMV6Pat<dag pattern, dag result> : Pat<pattern, result> {
|
|
list<Predicate> Predicates = [IsARM, HasV6];
|
|
}
|
|
|
|
//===----------------------------------------------------------------------===//
|
|
// Thumb Instruction Format Definitions.
|
|
//
|
|
|
|
class ThumbI<dag oops, dag iops, AddrMode am, int sz,
|
|
InstrItinClass itin, string asm, string cstr, list<dag> pattern>
|
|
: InstThumb<am, sz, IndexModeNone, ThumbFrm, GenericDomain, cstr, itin> {
|
|
let OutOperandList = oops;
|
|
let InOperandList = iops;
|
|
let AsmString = asm;
|
|
let Pattern = pattern;
|
|
list<Predicate> Predicates = [IsThumb];
|
|
}
|
|
|
|
// TI - Thumb instruction.
|
|
class TI<dag oops, dag iops, InstrItinClass itin, string asm, list<dag> pattern>
|
|
: ThumbI<oops, iops, AddrModeNone, 2, itin, asm, "", pattern>;
|
|
|
|
// Two-address instructions
|
|
class TIt<dag oops, dag iops, InstrItinClass itin, string asm,
|
|
list<dag> pattern>
|
|
: ThumbI<oops, iops, AddrModeNone, 2, itin, asm, "$lhs = $dst",
|
|
pattern>;
|
|
|
|
// tBL, tBX 32-bit instructions
|
|
class TIx2<bits<5> opcod1, bits<2> opcod2, bit opcod3,
|
|
dag oops, dag iops, InstrItinClass itin, string asm,
|
|
list<dag> pattern>
|
|
: ThumbI<oops, iops, AddrModeNone, 4, itin, asm, "", pattern>,
|
|
Encoding {
|
|
let Inst{31-27} = opcod1;
|
|
let Inst{15-14} = opcod2;
|
|
let Inst{12} = opcod3;
|
|
}
|
|
|
|
// BR_JT instructions
|
|
class TJTI<dag oops, dag iops, InstrItinClass itin, string asm,
|
|
list<dag> pattern>
|
|
: ThumbI<oops, iops, AddrModeNone, 0, itin, asm, "", pattern>;
|
|
|
|
// Thumb1 only
|
|
class Thumb1I<dag oops, dag iops, AddrMode am, int sz,
|
|
InstrItinClass itin, string asm, string cstr, list<dag> pattern>
|
|
: InstThumb<am, sz, IndexModeNone, ThumbFrm, GenericDomain, cstr, itin> {
|
|
let OutOperandList = oops;
|
|
let InOperandList = iops;
|
|
let AsmString = asm;
|
|
let Pattern = pattern;
|
|
list<Predicate> Predicates = [IsThumb, IsThumb1Only];
|
|
}
|
|
|
|
class T1I<dag oops, dag iops, InstrItinClass itin,
|
|
string asm, list<dag> pattern>
|
|
: Thumb1I<oops, iops, AddrModeNone, 2, itin, asm, "", pattern>;
|
|
class T1Ix2<dag oops, dag iops, InstrItinClass itin,
|
|
string asm, list<dag> pattern>
|
|
: Thumb1I<oops, iops, AddrModeNone, 4, itin, asm, "", pattern>;
|
|
|
|
// Two-address instructions
|
|
class T1It<dag oops, dag iops, InstrItinClass itin,
|
|
string asm, string cstr, list<dag> pattern>
|
|
: Thumb1I<oops, iops, AddrModeNone, 2, itin,
|
|
asm, cstr, pattern>;
|
|
|
|
// Thumb1 instruction that can either be predicated or set CPSR.
|
|
class Thumb1sI<dag oops, dag iops, AddrMode am, int sz,
|
|
InstrItinClass itin,
|
|
string opc, string asm, string cstr, list<dag> pattern>
|
|
: InstThumb<am, sz, IndexModeNone, ThumbFrm, GenericDomain, cstr, itin> {
|
|
let OutOperandList = !con(oops, (outs s_cc_out:$s));
|
|
let InOperandList = !con(iops, (ins pred:$p));
|
|
let AsmString = !strconcat(opc, "${s}${p}", asm);
|
|
let Pattern = pattern;
|
|
let thumbArithFlagSetting = 1;
|
|
list<Predicate> Predicates = [IsThumb, IsThumb1Only];
|
|
let DecoderNamespace = "ThumbSBit";
|
|
}
|
|
|
|
class T1sI<dag oops, dag iops, InstrItinClass itin,
|
|
string opc, string asm, list<dag> pattern>
|
|
: Thumb1sI<oops, iops, AddrModeNone, 2, itin, opc, asm, "", pattern>;
|
|
|
|
// Two-address instructions
|
|
class T1sIt<dag oops, dag iops, InstrItinClass itin,
|
|
string opc, string asm, list<dag> pattern>
|
|
: Thumb1sI<oops, iops, AddrModeNone, 2, itin, opc, asm,
|
|
"$Rn = $Rdn", pattern>;
|
|
|
|
// Thumb1 instruction that can be predicated.
|
|
class Thumb1pI<dag oops, dag iops, AddrMode am, int sz,
|
|
InstrItinClass itin,
|
|
string opc, string asm, string cstr, list<dag> pattern>
|
|
: InstThumb<am, sz, IndexModeNone, ThumbFrm, GenericDomain, cstr, itin> {
|
|
let OutOperandList = oops;
|
|
let InOperandList = !con(iops, (ins pred:$p));
|
|
let AsmString = !strconcat(opc, "${p}", asm);
|
|
let Pattern = pattern;
|
|
list<Predicate> Predicates = [IsThumb, IsThumb1Only];
|
|
}
|
|
|
|
class T1pI<dag oops, dag iops, InstrItinClass itin,
|
|
string opc, string asm, list<dag> pattern>
|
|
: Thumb1pI<oops, iops, AddrModeNone, 2, itin, opc, asm, "", pattern>;
|
|
|
|
// Two-address instructions
|
|
class T1pIt<dag oops, dag iops, InstrItinClass itin,
|
|
string opc, string asm, list<dag> pattern>
|
|
: Thumb1pI<oops, iops, AddrModeNone, 2, itin, opc, asm,
|
|
"$Rn = $Rdn", pattern>;
|
|
|
|
class T1pIs<dag oops, dag iops,
|
|
InstrItinClass itin, string opc, string asm, list<dag> pattern>
|
|
: Thumb1pI<oops, iops, AddrModeT1_s, 2, itin, opc, asm, "", pattern>;
|
|
|
|
class Encoding16 : Encoding {
|
|
let Inst{31-16} = 0x0000;
|
|
}
|
|
|
|
// A6.2 16-bit Thumb instruction encoding
|
|
class T1Encoding<bits<6> opcode> : Encoding16 {
|
|
let Inst{15-10} = opcode;
|
|
}
|
|
|
|
// A6.2.1 Shift (immediate), add, subtract, move, and compare encoding.
|
|
class T1General<bits<5> opcode> : Encoding16 {
|
|
let Inst{15-14} = 0b00;
|
|
let Inst{13-9} = opcode;
|
|
}
|
|
|
|
// A6.2.2 Data-processing encoding.
|
|
class T1DataProcessing<bits<4> opcode> : Encoding16 {
|
|
let Inst{15-10} = 0b010000;
|
|
let Inst{9-6} = opcode;
|
|
}
|
|
|
|
// A6.2.3 Special data instructions and branch and exchange encoding.
|
|
class T1Special<bits<4> opcode> : Encoding16 {
|
|
let Inst{15-10} = 0b010001;
|
|
let Inst{9-6} = opcode;
|
|
}
|
|
|
|
// A6.2.4 Load/store single data item encoding.
|
|
class T1LoadStore<bits<4> opA, bits<3> opB> : Encoding16 {
|
|
let Inst{15-12} = opA;
|
|
let Inst{11-9} = opB;
|
|
}
|
|
class T1LdStSP<bits<3> opB> : T1LoadStore<0b1001, opB>; // SP relative
|
|
|
|
class T1BranchCond<bits<4> opcode> : Encoding16 {
|
|
let Inst{15-12} = opcode;
|
|
}
|
|
|
|
// Helper classes to encode Thumb1 loads and stores. For immediates, the
|
|
// following bits are used for "opA" (see A6.2.4):
|
|
//
|
|
// 0b0110 => Immediate, 4 bytes
|
|
// 0b1000 => Immediate, 2 bytes
|
|
// 0b0111 => Immediate, 1 byte
|
|
class T1pILdStEncode<bits<3> opcode, dag oops, dag iops, AddrMode am,
|
|
InstrItinClass itin, string opc, string asm,
|
|
list<dag> pattern>
|
|
: Thumb1pI<oops, iops, am, 2, itin, opc, asm, "", pattern>,
|
|
T1LoadStore<0b0101, opcode> {
|
|
bits<3> Rt;
|
|
bits<8> addr;
|
|
let Inst{8-6} = addr{5-3}; // Rm
|
|
let Inst{5-3} = addr{2-0}; // Rn
|
|
let Inst{2-0} = Rt;
|
|
}
|
|
class T1pILdStEncodeImm<bits<4> opA, bit opB, dag oops, dag iops, AddrMode am,
|
|
InstrItinClass itin, string opc, string asm,
|
|
list<dag> pattern>
|
|
: Thumb1pI<oops, iops, am, 2, itin, opc, asm, "", pattern>,
|
|
T1LoadStore<opA, {opB,?,?}> {
|
|
bits<3> Rt;
|
|
bits<8> addr;
|
|
let Inst{10-6} = addr{7-3}; // imm5
|
|
let Inst{5-3} = addr{2-0}; // Rn
|
|
let Inst{2-0} = Rt;
|
|
}
|
|
|
|
// A6.2.5 Miscellaneous 16-bit instructions encoding.
|
|
class T1Misc<bits<7> opcode> : Encoding16 {
|
|
let Inst{15-12} = 0b1011;
|
|
let Inst{11-5} = opcode;
|
|
}
|
|
|
|
// Thumb2I - Thumb2 instruction. Almost all Thumb2 instructions are predicable.
|
|
class Thumb2I<dag oops, dag iops, AddrMode am, int sz,
|
|
InstrItinClass itin,
|
|
string opc, string asm, string cstr, list<dag> pattern>
|
|
: InstARM<am, sz, IndexModeNone, ThumbFrm, GenericDomain, cstr, itin> {
|
|
let OutOperandList = oops;
|
|
let InOperandList = !con(iops, (ins pred:$p));
|
|
let AsmString = !strconcat(opc, "${p}", asm);
|
|
let Pattern = pattern;
|
|
list<Predicate> Predicates = [IsThumb2];
|
|
let DecoderNamespace = "Thumb2";
|
|
}
|
|
|
|
// Same as Thumb2I except it can optionally modify CPSR. Note it's modeled as an
|
|
// input operand since by default it's a zero register. It will become an
|
|
// implicit def once it's "flipped".
|
|
//
|
|
// FIXME: This uses unified syntax so {s} comes before {p}. We should make it
|
|
// more consistent.
|
|
class Thumb2sI<dag oops, dag iops, AddrMode am, int sz,
|
|
InstrItinClass itin,
|
|
string opc, string asm, string cstr, list<dag> pattern>
|
|
: InstARM<am, sz, IndexModeNone, ThumbFrm, GenericDomain, cstr, itin> {
|
|
bits<1> s; // condition-code set flag ('1' if the insn should set the flags)
|
|
let Inst{20} = s;
|
|
|
|
let OutOperandList = oops;
|
|
let InOperandList = !con(iops, (ins pred:$p, cc_out:$s));
|
|
let AsmString = !strconcat(opc, "${s}${p}", asm);
|
|
let Pattern = pattern;
|
|
list<Predicate> Predicates = [IsThumb2];
|
|
let DecoderNamespace = "Thumb2";
|
|
}
|
|
|
|
// Special cases
|
|
class Thumb2XI<dag oops, dag iops, AddrMode am, int sz,
|
|
InstrItinClass itin,
|
|
string asm, string cstr, list<dag> pattern>
|
|
: InstARM<am, sz, IndexModeNone, ThumbFrm, GenericDomain, cstr, itin> {
|
|
let OutOperandList = oops;
|
|
let InOperandList = iops;
|
|
let AsmString = asm;
|
|
let Pattern = pattern;
|
|
list<Predicate> Predicates = [IsThumb2];
|
|
let DecoderNamespace = "Thumb2";
|
|
}
|
|
|
|
class ThumbXI<dag oops, dag iops, AddrMode am, int sz,
|
|
InstrItinClass itin,
|
|
string asm, string cstr, list<dag> pattern>
|
|
: InstARM<am, sz, IndexModeNone, ThumbFrm, GenericDomain, cstr, itin> {
|
|
let OutOperandList = oops;
|
|
let InOperandList = iops;
|
|
let AsmString = asm;
|
|
let Pattern = pattern;
|
|
list<Predicate> Predicates = [IsThumb, IsThumb1Only];
|
|
let DecoderNamespace = "Thumb";
|
|
}
|
|
|
|
class T2I<dag oops, dag iops, InstrItinClass itin,
|
|
string opc, string asm, list<dag> pattern>
|
|
: Thumb2I<oops, iops, AddrModeNone, 4, itin, opc, asm, "", pattern>;
|
|
class T2Ii12<dag oops, dag iops, InstrItinClass itin,
|
|
string opc, string asm, list<dag> pattern>
|
|
: Thumb2I<oops, iops, AddrModeT2_i12, 4, itin, opc, asm, "",pattern>;
|
|
class T2Ii8<dag oops, dag iops, InstrItinClass itin,
|
|
string opc, string asm, list<dag> pattern>
|
|
: Thumb2I<oops, iops, AddrModeT2_i8, 4, itin, opc, asm, "", pattern>;
|
|
class T2Iso<dag oops, dag iops, InstrItinClass itin,
|
|
string opc, string asm, list<dag> pattern>
|
|
: Thumb2I<oops, iops, AddrModeT2_so, 4, itin, opc, asm, "", pattern>;
|
|
class T2Ipc<dag oops, dag iops, InstrItinClass itin,
|
|
string opc, string asm, list<dag> pattern>
|
|
: Thumb2I<oops, iops, AddrModeT2_pc, 4, itin, opc, asm, "", pattern>;
|
|
class T2Ii8s4<bit P, bit W, bit isLoad, dag oops, dag iops, InstrItinClass itin,
|
|
string opc, string asm, string cstr, list<dag> pattern>
|
|
: Thumb2I<oops, iops, AddrModeT2_i8s4, 4, itin, opc, asm, cstr,
|
|
pattern> {
|
|
bits<4> Rt;
|
|
bits<4> Rt2;
|
|
bits<13> addr;
|
|
let Inst{31-25} = 0b1110100;
|
|
let Inst{24} = P;
|
|
let Inst{23} = addr{8};
|
|
let Inst{22} = 1;
|
|
let Inst{21} = W;
|
|
let Inst{20} = isLoad;
|
|
let Inst{19-16} = addr{12-9};
|
|
let Inst{15-12} = Rt{3-0};
|
|
let Inst{11-8} = Rt2{3-0};
|
|
let Inst{7-0} = addr{7-0};
|
|
}
|
|
class T2Ii8s4post<bit P, bit W, bit isLoad, dag oops, dag iops,
|
|
InstrItinClass itin, string opc, string asm, string cstr,
|
|
list<dag> pattern>
|
|
: Thumb2I<oops, iops, AddrModeT2_i8s4, 4, itin, opc, asm, cstr,
|
|
pattern> {
|
|
bits<4> Rt;
|
|
bits<4> Rt2;
|
|
bits<4> addr;
|
|
bits<9> imm;
|
|
let Inst{31-25} = 0b1110100;
|
|
let Inst{24} = P;
|
|
let Inst{23} = imm{8};
|
|
let Inst{22} = 1;
|
|
let Inst{21} = W;
|
|
let Inst{20} = isLoad;
|
|
let Inst{19-16} = addr;
|
|
let Inst{15-12} = Rt{3-0};
|
|
let Inst{11-8} = Rt2{3-0};
|
|
let Inst{7-0} = imm{7-0};
|
|
}
|
|
|
|
class T2sI<dag oops, dag iops, InstrItinClass itin,
|
|
string opc, string asm, list<dag> pattern>
|
|
: Thumb2sI<oops, iops, AddrModeNone, 4, itin, opc, asm, "", pattern>;
|
|
|
|
class T2XI<dag oops, dag iops, InstrItinClass itin,
|
|
string asm, list<dag> pattern>
|
|
: Thumb2XI<oops, iops, AddrModeNone, 4, itin, asm, "", pattern>;
|
|
class T2JTI<dag oops, dag iops, InstrItinClass itin,
|
|
string asm, list<dag> pattern>
|
|
: Thumb2XI<oops, iops, AddrModeNone, 0, itin, asm, "", pattern>;
|
|
|
|
// Move to/from coprocessor instructions
|
|
class T2Cop<bits<4> opc, dag oops, dag iops, string asm, list<dag> pattern>
|
|
: T2XI <oops, iops, NoItinerary, asm, pattern>, Requires<[IsThumb2]> {
|
|
let Inst{31-28} = opc;
|
|
}
|
|
|
|
// Two-address instructions
|
|
class T2XIt<dag oops, dag iops, InstrItinClass itin,
|
|
string asm, string cstr, list<dag> pattern>
|
|
: Thumb2XI<oops, iops, AddrModeNone, 4, itin, asm, cstr, pattern>;
|
|
|
|
// T2Ipreldst - Thumb2 pre-indexed load / store instructions.
|
|
class T2Ipreldst<bit signed, bits<2> opcod, bit load, bit pre,
|
|
dag oops, dag iops,
|
|
AddrMode am, IndexMode im, InstrItinClass itin,
|
|
string opc, string asm, string cstr, list<dag> pattern>
|
|
: InstARM<am, 4, im, ThumbFrm, GenericDomain, cstr, itin> {
|
|
let OutOperandList = oops;
|
|
let InOperandList = !con(iops, (ins pred:$p));
|
|
let AsmString = !strconcat(opc, "${p}", asm);
|
|
let Pattern = pattern;
|
|
list<Predicate> Predicates = [IsThumb2];
|
|
let DecoderNamespace = "Thumb2";
|
|
|
|
bits<4> Rt;
|
|
bits<13> addr;
|
|
let Inst{31-27} = 0b11111;
|
|
let Inst{26-25} = 0b00;
|
|
let Inst{24} = signed;
|
|
let Inst{23} = 0;
|
|
let Inst{22-21} = opcod;
|
|
let Inst{20} = load;
|
|
let Inst{19-16} = addr{12-9};
|
|
let Inst{15-12} = Rt{3-0};
|
|
let Inst{11} = 1;
|
|
// (P, W) = (1, 1) Pre-indexed or (0, 1) Post-indexed
|
|
let Inst{10} = pre; // The P bit.
|
|
let Inst{9} = addr{8}; // Sign bit
|
|
let Inst{8} = 1; // The W bit.
|
|
let Inst{7-0} = addr{7-0};
|
|
|
|
let DecoderMethod = "DecodeT2LdStPre";
|
|
}
|
|
|
|
// T2Ipostldst - Thumb2 post-indexed load / store instructions.
|
|
class T2Ipostldst<bit signed, bits<2> opcod, bit load, bit pre,
|
|
dag oops, dag iops,
|
|
AddrMode am, IndexMode im, InstrItinClass itin,
|
|
string opc, string asm, string cstr, list<dag> pattern>
|
|
: InstARM<am, 4, im, ThumbFrm, GenericDomain, cstr, itin> {
|
|
let OutOperandList = oops;
|
|
let InOperandList = !con(iops, (ins pred:$p));
|
|
let AsmString = !strconcat(opc, "${p}", asm);
|
|
let Pattern = pattern;
|
|
list<Predicate> Predicates = [IsThumb2];
|
|
let DecoderNamespace = "Thumb2";
|
|
|
|
bits<4> Rt;
|
|
bits<4> Rn;
|
|
bits<9> offset;
|
|
let Inst{31-27} = 0b11111;
|
|
let Inst{26-25} = 0b00;
|
|
let Inst{24} = signed;
|
|
let Inst{23} = 0;
|
|
let Inst{22-21} = opcod;
|
|
let Inst{20} = load;
|
|
let Inst{19-16} = Rn;
|
|
let Inst{15-12} = Rt{3-0};
|
|
let Inst{11} = 1;
|
|
// (P, W) = (1, 1) Pre-indexed or (0, 1) Post-indexed
|
|
let Inst{10} = pre; // The P bit.
|
|
let Inst{9} = offset{8}; // Sign bit
|
|
let Inst{8} = 1; // The W bit.
|
|
let Inst{7-0} = offset{7-0};
|
|
|
|
let DecoderMethod = "DecodeT2LdStPre";
|
|
}
|
|
|
|
// Tv5Pat - Same as Pat<>, but requires V5T Thumb mode.
|
|
class Tv5Pat<dag pattern, dag result> : Pat<pattern, result> {
|
|
list<Predicate> Predicates = [IsThumb, IsThumb1Only, HasV5T];
|
|
}
|
|
|
|
// T1Pat - Same as Pat<>, but requires that the compiler be in Thumb1 mode.
|
|
class T1Pat<dag pattern, dag result> : Pat<pattern, result> {
|
|
list<Predicate> Predicates = [IsThumb, IsThumb1Only];
|
|
}
|
|
|
|
// T2v6Pat - Same as Pat<>, but requires V6T2 Thumb2 mode.
|
|
class T2v6Pat<dag pattern, dag result> : Pat<pattern, result> {
|
|
list<Predicate> Predicates = [IsThumb2, HasV6T2];
|
|
}
|
|
|
|
// T2Pat - Same as Pat<>, but requires that the compiler be in Thumb2 mode.
|
|
class T2Pat<dag pattern, dag result> : Pat<pattern, result> {
|
|
list<Predicate> Predicates = [IsThumb2];
|
|
}
|
|
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
//===----------------------------------------------------------------------===//
|
|
// ARM VFP Instruction templates.
|
|
//
|
|
|
|
// Almost all VFP instructions are predicable.
|
|
class VFPI<dag oops, dag iops, AddrMode am, int sz,
|
|
IndexMode im, Format f, InstrItinClass itin,
|
|
string opc, string asm, string cstr, list<dag> pattern>
|
|
: InstARM<am, sz, im, f, VFPDomain, cstr, itin> {
|
|
bits<4> p;
|
|
let Inst{31-28} = p;
|
|
let OutOperandList = oops;
|
|
let InOperandList = !con(iops, (ins pred:$p));
|
|
let AsmString = !strconcat(opc, "${p}", asm);
|
|
let Pattern = pattern;
|
|
let PostEncoderMethod = "VFPThumb2PostEncoder";
|
|
let DecoderNamespace = "VFP";
|
|
list<Predicate> Predicates = [HasVFP2];
|
|
}
|
|
|
|
// Special cases
|
|
class VFPXI<dag oops, dag iops, AddrMode am, int sz,
|
|
IndexMode im, Format f, InstrItinClass itin,
|
|
string asm, string cstr, list<dag> pattern>
|
|
: InstARM<am, sz, im, f, VFPDomain, cstr, itin> {
|
|
bits<4> p;
|
|
let Inst{31-28} = p;
|
|
let OutOperandList = oops;
|
|
let InOperandList = iops;
|
|
let AsmString = asm;
|
|
let Pattern = pattern;
|
|
let PostEncoderMethod = "VFPThumb2PostEncoder";
|
|
let DecoderNamespace = "VFP";
|
|
list<Predicate> Predicates = [HasVFP2];
|
|
}
|
|
|
|
class VFPAI<dag oops, dag iops, Format f, InstrItinClass itin,
|
|
string opc, string asm, list<dag> pattern>
|
|
: VFPI<oops, iops, AddrModeNone, 4, IndexModeNone, f, itin,
|
|
opc, asm, "", pattern> {
|
|
let PostEncoderMethod = "VFPThumb2PostEncoder";
|
|
}
|
|
|
|
// ARM VFP addrmode5 loads and stores
|
|
class ADI5<bits<4> opcod1, bits<2> opcod2, dag oops, dag iops,
|
|
InstrItinClass itin,
|
|
string opc, string asm, list<dag> pattern>
|
|
: VFPI<oops, iops, AddrMode5, 4, IndexModeNone,
|
|
VFPLdStFrm, itin, opc, asm, "", pattern> {
|
|
// Instruction operands.
|
|
bits<5> Dd;
|
|
bits<13> addr;
|
|
|
|
// Encode instruction operands.
|
|
let Inst{23} = addr{8}; // U (add = (U == '1'))
|
|
let Inst{22} = Dd{4};
|
|
let Inst{19-16} = addr{12-9}; // Rn
|
|
let Inst{15-12} = Dd{3-0};
|
|
let Inst{7-0} = addr{7-0}; // imm8
|
|
|
|
let Inst{27-24} = opcod1;
|
|
let Inst{21-20} = opcod2;
|
|
let Inst{11-9} = 0b101;
|
|
let Inst{8} = 1; // Double precision
|
|
|
|
// Loads & stores operate on both NEON and VFP pipelines.
|
|
let D = VFPNeonDomain;
|
|
}
|
|
|
|
class ASI5<bits<4> opcod1, bits<2> opcod2, dag oops, dag iops,
|
|
InstrItinClass itin,
|
|
string opc, string asm, list<dag> pattern>
|
|
: VFPI<oops, iops, AddrMode5, 4, IndexModeNone,
|
|
VFPLdStFrm, itin, opc, asm, "", pattern> {
|
|
// Instruction operands.
|
|
bits<5> Sd;
|
|
bits<13> addr;
|
|
|
|
// Encode instruction operands.
|
|
let Inst{23} = addr{8}; // U (add = (U == '1'))
|
|
let Inst{22} = Sd{0};
|
|
let Inst{19-16} = addr{12-9}; // Rn
|
|
let Inst{15-12} = Sd{4-1};
|
|
let Inst{7-0} = addr{7-0}; // imm8
|
|
|
|
let Inst{27-24} = opcod1;
|
|
let Inst{21-20} = opcod2;
|
|
let Inst{11-9} = 0b101;
|
|
let Inst{8} = 0; // Single precision
|
|
|
|
// Loads & stores operate on both NEON and VFP pipelines.
|
|
let D = VFPNeonDomain;
|
|
}
|
|
|
|
// VFP Load / store multiple pseudo instructions.
|
|
class PseudoVFPLdStM<dag oops, dag iops, InstrItinClass itin, string cstr,
|
|
list<dag> pattern>
|
|
: InstARM<AddrMode4, 4, IndexModeNone, Pseudo, VFPNeonDomain,
|
|
cstr, itin> {
|
|
let OutOperandList = oops;
|
|
let InOperandList = !con(iops, (ins pred:$p));
|
|
let Pattern = pattern;
|
|
list<Predicate> Predicates = [HasVFP2];
|
|
}
|
|
|
|
// Load / store multiple
|
|
|
|
// Unknown precision
|
|
class AXXI4<dag oops, dag iops, IndexMode im,
|
|
string asm, string cstr, list<dag> pattern>
|
|
: VFPXI<oops, iops, AddrMode4, 4, im,
|
|
VFPLdStFrm, NoItinerary, asm, cstr, pattern> {
|
|
// Instruction operands.
|
|
bits<4> Rn;
|
|
bits<13> regs;
|
|
|
|
// Encode instruction operands.
|
|
let Inst{19-16} = Rn;
|
|
let Inst{22} = 0;
|
|
let Inst{15-12} = regs{11-8};
|
|
let Inst{7-1} = regs{7-1};
|
|
|
|
let Inst{27-25} = 0b110;
|
|
let Inst{11-8} = 0b1011;
|
|
let Inst{0} = 1;
|
|
}
|
|
|
|
// Double precision
|
|
class AXDI4<dag oops, dag iops, IndexMode im, InstrItinClass itin,
|
|
string asm, string cstr, list<dag> pattern>
|
|
: VFPXI<oops, iops, AddrMode4, 4, im,
|
|
VFPLdStMulFrm, itin, asm, cstr, pattern> {
|
|
// Instruction operands.
|
|
bits<4> Rn;
|
|
bits<13> regs;
|
|
|
|
// Encode instruction operands.
|
|
let Inst{19-16} = Rn;
|
|
let Inst{22} = regs{12};
|
|
let Inst{15-12} = regs{11-8};
|
|
let Inst{7-1} = regs{7-1};
|
|
|
|
let Inst{27-25} = 0b110;
|
|
let Inst{11-9} = 0b101;
|
|
let Inst{8} = 1; // Double precision
|
|
let Inst{0} = 0;
|
|
}
|
|
|
|
// Single Precision
|
|
class AXSI4<dag oops, dag iops, IndexMode im, InstrItinClass itin,
|
|
string asm, string cstr, list<dag> pattern>
|
|
: VFPXI<oops, iops, AddrMode4, 4, im,
|
|
VFPLdStMulFrm, itin, asm, cstr, pattern> {
|
|
// Instruction operands.
|
|
bits<4> Rn;
|
|
bits<13> regs;
|
|
|
|
// Encode instruction operands.
|
|
let Inst{19-16} = Rn;
|
|
let Inst{22} = regs{8};
|
|
let Inst{15-12} = regs{12-9};
|
|
let Inst{7-0} = regs{7-0};
|
|
|
|
let Inst{27-25} = 0b110;
|
|
let Inst{11-9} = 0b101;
|
|
let Inst{8} = 0; // Single precision
|
|
}
|
|
|
|
// Double precision, unary
|
|
class ADuI<bits<5> opcod1, bits<2> opcod2, bits<4> opcod3, bits<2> opcod4,
|
|
bit opcod5, dag oops, dag iops, InstrItinClass itin, string opc,
|
|
string asm, list<dag> pattern>
|
|
: VFPAI<oops, iops, VFPUnaryFrm, itin, opc, asm, pattern> {
|
|
// Instruction operands.
|
|
bits<5> Dd;
|
|
bits<5> Dm;
|
|
|
|
// Encode instruction operands.
|
|
let Inst{3-0} = Dm{3-0};
|
|
let Inst{5} = Dm{4};
|
|
let Inst{15-12} = Dd{3-0};
|
|
let Inst{22} = Dd{4};
|
|
|
|
let Inst{27-23} = opcod1;
|
|
let Inst{21-20} = opcod2;
|
|
let Inst{19-16} = opcod3;
|
|
let Inst{11-9} = 0b101;
|
|
let Inst{8} = 1; // Double precision
|
|
let Inst{7-6} = opcod4;
|
|
let Inst{4} = opcod5;
|
|
}
|
|
|
|
// Double precision, binary
|
|
class ADbI<bits<5> opcod1, bits<2> opcod2, bit op6, bit op4, dag oops,
|
|
dag iops, InstrItinClass itin, string opc, string asm,
|
|
list<dag> pattern>
|
|
: VFPAI<oops, iops, VFPBinaryFrm, itin, opc, asm, pattern> {
|
|
// Instruction operands.
|
|
bits<5> Dd;
|
|
bits<5> Dn;
|
|
bits<5> Dm;
|
|
|
|
// Encode instruction operands.
|
|
let Inst{3-0} = Dm{3-0};
|
|
let Inst{5} = Dm{4};
|
|
let Inst{19-16} = Dn{3-0};
|
|
let Inst{7} = Dn{4};
|
|
let Inst{15-12} = Dd{3-0};
|
|
let Inst{22} = Dd{4};
|
|
|
|
let Inst{27-23} = opcod1;
|
|
let Inst{21-20} = opcod2;
|
|
let Inst{11-9} = 0b101;
|
|
let Inst{8} = 1; // Double precision
|
|
let Inst{6} = op6;
|
|
let Inst{4} = op4;
|
|
}
|
|
|
|
// Single precision, unary
|
|
class ASuI<bits<5> opcod1, bits<2> opcod2, bits<4> opcod3, bits<2> opcod4,
|
|
bit opcod5, dag oops, dag iops, InstrItinClass itin, string opc,
|
|
string asm, list<dag> pattern>
|
|
: VFPAI<oops, iops, VFPUnaryFrm, itin, opc, asm, pattern> {
|
|
// Instruction operands.
|
|
bits<5> Sd;
|
|
bits<5> Sm;
|
|
|
|
// Encode instruction operands.
|
|
let Inst{3-0} = Sm{4-1};
|
|
let Inst{5} = Sm{0};
|
|
let Inst{15-12} = Sd{4-1};
|
|
let Inst{22} = Sd{0};
|
|
|
|
let Inst{27-23} = opcod1;
|
|
let Inst{21-20} = opcod2;
|
|
let Inst{19-16} = opcod3;
|
|
let Inst{11-9} = 0b101;
|
|
let Inst{8} = 0; // Single precision
|
|
let Inst{7-6} = opcod4;
|
|
let Inst{4} = opcod5;
|
|
}
|
|
|
|
// Single precision unary, if no NEON. Same as ASuI except not available if
|
|
// NEON is enabled.
|
|
class ASuIn<bits<5> opcod1, bits<2> opcod2, bits<4> opcod3, bits<2> opcod4,
|
|
bit opcod5, dag oops, dag iops, InstrItinClass itin, string opc,
|
|
string asm, list<dag> pattern>
|
|
: ASuI<opcod1, opcod2, opcod3, opcod4, opcod5, oops, iops, itin, opc, asm,
|
|
pattern> {
|
|
list<Predicate> Predicates = [HasVFP2,DontUseNEONForFP];
|
|
}
|
|
|
|
// Single precision, binary
|
|
class ASbI<bits<5> opcod1, bits<2> opcod2, bit op6, bit op4, dag oops, dag iops,
|
|
InstrItinClass itin, string opc, string asm, list<dag> pattern>
|
|
: VFPAI<oops, iops, VFPBinaryFrm, itin, opc, asm, pattern> {
|
|
// Instruction operands.
|
|
bits<5> Sd;
|
|
bits<5> Sn;
|
|
bits<5> Sm;
|
|
|
|
// Encode instruction operands.
|
|
let Inst{3-0} = Sm{4-1};
|
|
let Inst{5} = Sm{0};
|
|
let Inst{19-16} = Sn{4-1};
|
|
let Inst{7} = Sn{0};
|
|
let Inst{15-12} = Sd{4-1};
|
|
let Inst{22} = Sd{0};
|
|
|
|
let Inst{27-23} = opcod1;
|
|
let Inst{21-20} = opcod2;
|
|
let Inst{11-9} = 0b101;
|
|
let Inst{8} = 0; // Single precision
|
|
let Inst{6} = op6;
|
|
let Inst{4} = op4;
|
|
}
|
|
|
|
// Single precision binary, if no NEON. Same as ASbI except not available if
|
|
// NEON is enabled.
|
|
class ASbIn<bits<5> opcod1, bits<2> opcod2, bit op6, bit op4, dag oops,
|
|
dag iops, InstrItinClass itin, string opc, string asm,
|
|
list<dag> pattern>
|
|
: ASbI<opcod1, opcod2, op6, op4, oops, iops, itin, opc, asm, pattern> {
|
|
list<Predicate> Predicates = [HasVFP2,DontUseNEONForFP];
|
|
|
|
// Instruction operands.
|
|
bits<5> Sd;
|
|
bits<5> Sn;
|
|
bits<5> Sm;
|
|
|
|
// Encode instruction operands.
|
|
let Inst{3-0} = Sm{4-1};
|
|
let Inst{5} = Sm{0};
|
|
let Inst{19-16} = Sn{4-1};
|
|
let Inst{7} = Sn{0};
|
|
let Inst{15-12} = Sd{4-1};
|
|
let Inst{22} = Sd{0};
|
|
}
|
|
|
|
// VFP conversion instructions
|
|
class AVConv1I<bits<5> opcod1, bits<2> opcod2, bits<4> opcod3, bits<4> opcod4,
|
|
dag oops, dag iops, InstrItinClass itin, string opc, string asm,
|
|
list<dag> pattern>
|
|
: VFPAI<oops, iops, VFPConv1Frm, itin, opc, asm, pattern> {
|
|
let Inst{27-23} = opcod1;
|
|
let Inst{21-20} = opcod2;
|
|
let Inst{19-16} = opcod3;
|
|
let Inst{11-8} = opcod4;
|
|
let Inst{6} = 1;
|
|
let Inst{4} = 0;
|
|
}
|
|
|
|
// VFP conversion between floating-point and fixed-point
|
|
class AVConv1XI<bits<5> op1, bits<2> op2, bits<4> op3, bits<4> op4, bit op5,
|
|
dag oops, dag iops, InstrItinClass itin, string opc, string asm,
|
|
list<dag> pattern>
|
|
: AVConv1I<op1, op2, op3, op4, oops, iops, itin, opc, asm, pattern> {
|
|
bits<5> fbits;
|
|
// size (fixed-point number): sx == 0 ? 16 : 32
|
|
let Inst{7} = op5; // sx
|
|
let Inst{5} = fbits{0};
|
|
let Inst{3-0} = fbits{4-1};
|
|
}
|
|
|
|
// VFP conversion instructions, if no NEON
|
|
class AVConv1In<bits<5> opcod1, bits<2> opcod2, bits<4> opcod3, bits<4> opcod4,
|
|
dag oops, dag iops, InstrItinClass itin,
|
|
string opc, string asm, list<dag> pattern>
|
|
: AVConv1I<opcod1, opcod2, opcod3, opcod4, oops, iops, itin, opc, asm,
|
|
pattern> {
|
|
list<Predicate> Predicates = [HasVFP2,DontUseNEONForFP];
|
|
}
|
|
|
|
class AVConvXI<bits<8> opcod1, bits<4> opcod2, dag oops, dag iops, Format f,
|
|
InstrItinClass itin,
|
|
string opc, string asm, list<dag> pattern>
|
|
: VFPAI<oops, iops, f, itin, opc, asm, pattern> {
|
|
let Inst{27-20} = opcod1;
|
|
let Inst{11-8} = opcod2;
|
|
let Inst{4} = 1;
|
|
}
|
|
|
|
class AVConv2I<bits<8> opcod1, bits<4> opcod2, dag oops, dag iops,
|
|
InstrItinClass itin, string opc, string asm, list<dag> pattern>
|
|
: AVConvXI<opcod1, opcod2, oops, iops, VFPConv2Frm, itin, opc, asm, pattern>;
|
|
|
|
class AVConv3I<bits<8> opcod1, bits<4> opcod2, dag oops, dag iops,
|
|
InstrItinClass itin, string opc, string asm, list<dag> pattern>
|
|
: AVConvXI<opcod1, opcod2, oops, iops, VFPConv3Frm, itin, opc, asm, pattern>;
|
|
|
|
class AVConv4I<bits<8> opcod1, bits<4> opcod2, dag oops, dag iops,
|
|
InstrItinClass itin, string opc, string asm, list<dag> pattern>
|
|
: AVConvXI<opcod1, opcod2, oops, iops, VFPConv4Frm, itin, opc, asm, pattern>;
|
|
|
|
class AVConv5I<bits<8> opcod1, bits<4> opcod2, dag oops, dag iops,
|
|
InstrItinClass itin, string opc, string asm, list<dag> pattern>
|
|
: AVConvXI<opcod1, opcod2, oops, iops, VFPConv5Frm, itin, opc, asm, pattern>;
|
|
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
//===----------------------------------------------------------------------===//
|
|
// ARM NEON Instruction templates.
|
|
//
|
|
|
|
class NeonI<dag oops, dag iops, AddrMode am, IndexMode im, Format f,
|
|
InstrItinClass itin, string opc, string dt, string asm, string cstr,
|
|
list<dag> pattern>
|
|
: InstARM<am, 4, im, f, NeonDomain, cstr, itin> {
|
|
let OutOperandList = oops;
|
|
let InOperandList = !con(iops, (ins pred:$p));
|
|
let AsmString = !strconcat(opc, "${p}", ".", dt, "\t", asm);
|
|
let Pattern = pattern;
|
|
list<Predicate> Predicates = [HasNEON];
|
|
let DecoderNamespace = "NEON";
|
|
}
|
|
|
|
// Same as NeonI except it does not have a "data type" specifier.
|
|
class NeonXI<dag oops, dag iops, AddrMode am, IndexMode im, Format f,
|
|
InstrItinClass itin, string opc, string asm, string cstr,
|
|
list<dag> pattern>
|
|
: InstARM<am, 4, im, f, NeonDomain, cstr, itin> {
|
|
let OutOperandList = oops;
|
|
let InOperandList = !con(iops, (ins pred:$p));
|
|
let AsmString = !strconcat(opc, "${p}", "\t", asm);
|
|
let Pattern = pattern;
|
|
list<Predicate> Predicates = [HasNEON];
|
|
let DecoderNamespace = "NEON";
|
|
}
|
|
|
|
class NLdSt<bit op23, bits<2> op21_20, bits<4> op11_8, bits<4> op7_4,
|
|
dag oops, dag iops, InstrItinClass itin,
|
|
string opc, string dt, string asm, string cstr, list<dag> pattern>
|
|
: NeonI<oops, iops, AddrMode6, IndexModeNone, NLdStFrm, itin, opc, dt, asm,
|
|
cstr, pattern> {
|
|
let Inst{31-24} = 0b11110100;
|
|
let Inst{23} = op23;
|
|
let Inst{21-20} = op21_20;
|
|
let Inst{11-8} = op11_8;
|
|
let Inst{7-4} = op7_4;
|
|
|
|
let PostEncoderMethod = "NEONThumb2LoadStorePostEncoder";
|
|
let DecoderNamespace = "NEONLoadStore";
|
|
|
|
bits<5> Vd;
|
|
bits<6> Rn;
|
|
bits<4> Rm;
|
|
|
|
let Inst{22} = Vd{4};
|
|
let Inst{15-12} = Vd{3-0};
|
|
let Inst{19-16} = Rn{3-0};
|
|
let Inst{3-0} = Rm{3-0};
|
|
}
|
|
|
|
class NLdStLn<bit op23, bits<2> op21_20, bits<4> op11_8, bits<4> op7_4,
|
|
dag oops, dag iops, InstrItinClass itin,
|
|
string opc, string dt, string asm, string cstr, list<dag> pattern>
|
|
: NLdSt<op23, op21_20, op11_8, op7_4, oops, iops, itin, opc,
|
|
dt, asm, cstr, pattern> {
|
|
bits<3> lane;
|
|
}
|
|
|
|
class PseudoNLdSt<dag oops, dag iops, InstrItinClass itin, string cstr>
|
|
: InstARM<AddrMode6, 4, IndexModeNone, Pseudo, NeonDomain, cstr,
|
|
itin> {
|
|
let OutOperandList = oops;
|
|
let InOperandList = !con(iops, (ins pred:$p));
|
|
list<Predicate> Predicates = [HasNEON];
|
|
}
|
|
|
|
class PseudoNeonI<dag oops, dag iops, InstrItinClass itin, string cstr,
|
|
list<dag> pattern>
|
|
: InstARM<AddrModeNone, 4, IndexModeNone, Pseudo, NeonDomain, cstr,
|
|
itin> {
|
|
let OutOperandList = oops;
|
|
let InOperandList = !con(iops, (ins pred:$p));
|
|
let Pattern = pattern;
|
|
list<Predicate> Predicates = [HasNEON];
|
|
}
|
|
|
|
class NDataI<dag oops, dag iops, Format f, InstrItinClass itin,
|
|
string opc, string dt, string asm, string cstr, list<dag> pattern>
|
|
: NeonI<oops, iops, AddrModeNone, IndexModeNone, f, itin, opc, dt, asm, cstr,
|
|
pattern> {
|
|
let Inst{31-25} = 0b1111001;
|
|
let PostEncoderMethod = "NEONThumb2DataIPostEncoder";
|
|
let DecoderNamespace = "NEONData";
|
|
}
|
|
|
|
class NDataXI<dag oops, dag iops, Format f, InstrItinClass itin,
|
|
string opc, string asm, string cstr, list<dag> pattern>
|
|
: NeonXI<oops, iops, AddrModeNone, IndexModeNone, f, itin, opc, asm,
|
|
cstr, pattern> {
|
|
let Inst{31-25} = 0b1111001;
|
|
let PostEncoderMethod = "NEONThumb2DataIPostEncoder";
|
|
let DecoderNamespace = "NEONData";
|
|
}
|
|
|
|
// NEON "one register and a modified immediate" format.
|
|
class N1ModImm<bit op23, bits<3> op21_19, bits<4> op11_8, bit op7, bit op6,
|
|
bit op5, bit op4,
|
|
dag oops, dag iops, InstrItinClass itin,
|
|
string opc, string dt, string asm, string cstr,
|
|
list<dag> pattern>
|
|
: NDataI<oops, iops, N1RegModImmFrm, itin, opc, dt, asm, cstr, pattern> {
|
|
let Inst{23} = op23;
|
|
let Inst{21-19} = op21_19;
|
|
let Inst{11-8} = op11_8;
|
|
let Inst{7} = op7;
|
|
let Inst{6} = op6;
|
|
let Inst{5} = op5;
|
|
let Inst{4} = op4;
|
|
|
|
// Instruction operands.
|
|
bits<5> Vd;
|
|
bits<13> SIMM;
|
|
|
|
let Inst{15-12} = Vd{3-0};
|
|
let Inst{22} = Vd{4};
|
|
let Inst{24} = SIMM{7};
|
|
let Inst{18-16} = SIMM{6-4};
|
|
let Inst{3-0} = SIMM{3-0};
|
|
let DecoderMethod = "DecodeNEONModImmInstruction";
|
|
}
|
|
|
|
// NEON 2 vector register format.
|
|
class N2V<bits<2> op24_23, bits<2> op21_20, bits<2> op19_18, bits<2> op17_16,
|
|
bits<5> op11_7, bit op6, bit op4,
|
|
dag oops, dag iops, InstrItinClass itin,
|
|
string opc, string dt, string asm, string cstr, list<dag> pattern>
|
|
: NDataI<oops, iops, N2RegFrm, itin, opc, dt, asm, cstr, pattern> {
|
|
let Inst{24-23} = op24_23;
|
|
let Inst{21-20} = op21_20;
|
|
let Inst{19-18} = op19_18;
|
|
let Inst{17-16} = op17_16;
|
|
let Inst{11-7} = op11_7;
|
|
let Inst{6} = op6;
|
|
let Inst{4} = op4;
|
|
|
|
// Instruction operands.
|
|
bits<5> Vd;
|
|
bits<5> Vm;
|
|
|
|
let Inst{15-12} = Vd{3-0};
|
|
let Inst{22} = Vd{4};
|
|
let Inst{3-0} = Vm{3-0};
|
|
let Inst{5} = Vm{4};
|
|
}
|
|
|
|
// Same as N2V except it doesn't have a datatype suffix.
|
|
class N2VX<bits<2> op24_23, bits<2> op21_20, bits<2> op19_18, bits<2> op17_16,
|
|
bits<5> op11_7, bit op6, bit op4,
|
|
dag oops, dag iops, InstrItinClass itin,
|
|
string opc, string asm, string cstr, list<dag> pattern>
|
|
: NDataXI<oops, iops, N2RegFrm, itin, opc, asm, cstr, pattern> {
|
|
let Inst{24-23} = op24_23;
|
|
let Inst{21-20} = op21_20;
|
|
let Inst{19-18} = op19_18;
|
|
let Inst{17-16} = op17_16;
|
|
let Inst{11-7} = op11_7;
|
|
let Inst{6} = op6;
|
|
let Inst{4} = op4;
|
|
|
|
// Instruction operands.
|
|
bits<5> Vd;
|
|
bits<5> Vm;
|
|
|
|
let Inst{15-12} = Vd{3-0};
|
|
let Inst{22} = Vd{4};
|
|
let Inst{3-0} = Vm{3-0};
|
|
let Inst{5} = Vm{4};
|
|
}
|
|
|
|
// NEON 2 vector register with immediate.
|
|
class N2VImm<bit op24, bit op23, bits<4> op11_8, bit op7, bit op6, bit op4,
|
|
dag oops, dag iops, Format f, InstrItinClass itin,
|
|
string opc, string dt, string asm, string cstr, list<dag> pattern>
|
|
: NDataI<oops, iops, f, itin, opc, dt, asm, cstr, pattern> {
|
|
let Inst{24} = op24;
|
|
let Inst{23} = op23;
|
|
let Inst{11-8} = op11_8;
|
|
let Inst{7} = op7;
|
|
let Inst{6} = op6;
|
|
let Inst{4} = op4;
|
|
|
|
// Instruction operands.
|
|
bits<5> Vd;
|
|
bits<5> Vm;
|
|
bits<6> SIMM;
|
|
|
|
let Inst{15-12} = Vd{3-0};
|
|
let Inst{22} = Vd{4};
|
|
let Inst{3-0} = Vm{3-0};
|
|
let Inst{5} = Vm{4};
|
|
let Inst{21-16} = SIMM{5-0};
|
|
}
|
|
|
|
// NEON 3 vector register format.
|
|
|
|
class N3VCommon<bit op24, bit op23, bits<2> op21_20, bits<4> op11_8, bit op6,
|
|
bit op4, dag oops, dag iops, Format f, InstrItinClass itin,
|
|
string opc, string dt, string asm, string cstr,
|
|
list<dag> pattern>
|
|
: NDataI<oops, iops, f, itin, opc, dt, asm, cstr, pattern> {
|
|
let Inst{24} = op24;
|
|
let Inst{23} = op23;
|
|
let Inst{21-20} = op21_20;
|
|
let Inst{11-8} = op11_8;
|
|
let Inst{6} = op6;
|
|
let Inst{4} = op4;
|
|
}
|
|
|
|
class N3V<bit op24, bit op23, bits<2> op21_20, bits<4> op11_8, bit op6, bit op4,
|
|
dag oops, dag iops, Format f, InstrItinClass itin,
|
|
string opc, string dt, string asm, string cstr, list<dag> pattern>
|
|
: N3VCommon<op24, op23, op21_20, op11_8, op6, op4,
|
|
oops, iops, f, itin, opc, dt, asm, cstr, pattern> {
|
|
// Instruction operands.
|
|
bits<5> Vd;
|
|
bits<5> Vn;
|
|
bits<5> Vm;
|
|
|
|
let Inst{15-12} = Vd{3-0};
|
|
let Inst{22} = Vd{4};
|
|
let Inst{19-16} = Vn{3-0};
|
|
let Inst{7} = Vn{4};
|
|
let Inst{3-0} = Vm{3-0};
|
|
let Inst{5} = Vm{4};
|
|
}
|
|
|
|
class N3VLane32<bit op24, bit op23, bits<2> op21_20, bits<4> op11_8, bit op6,
|
|
bit op4, dag oops, dag iops, Format f, InstrItinClass itin,
|
|
string opc, string dt, string asm, string cstr,
|
|
list<dag> pattern>
|
|
: N3VCommon<op24, op23, op21_20, op11_8, op6, op4,
|
|
oops, iops, f, itin, opc, dt, asm, cstr, pattern> {
|
|
|
|
// Instruction operands.
|
|
bits<5> Vd;
|
|
bits<5> Vn;
|
|
bits<5> Vm;
|
|
bit lane;
|
|
|
|
let Inst{15-12} = Vd{3-0};
|
|
let Inst{22} = Vd{4};
|
|
let Inst{19-16} = Vn{3-0};
|
|
let Inst{7} = Vn{4};
|
|
let Inst{3-0} = Vm{3-0};
|
|
let Inst{5} = lane;
|
|
}
|
|
|
|
class N3VLane16<bit op24, bit op23, bits<2> op21_20, bits<4> op11_8, bit op6,
|
|
bit op4, dag oops, dag iops, Format f, InstrItinClass itin,
|
|
string opc, string dt, string asm, string cstr,
|
|
list<dag> pattern>
|
|
: N3VCommon<op24, op23, op21_20, op11_8, op6, op4,
|
|
oops, iops, f, itin, opc, dt, asm, cstr, pattern> {
|
|
|
|
// Instruction operands.
|
|
bits<5> Vd;
|
|
bits<5> Vn;
|
|
bits<5> Vm;
|
|
bits<2> lane;
|
|
|
|
let Inst{15-12} = Vd{3-0};
|
|
let Inst{22} = Vd{4};
|
|
let Inst{19-16} = Vn{3-0};
|
|
let Inst{7} = Vn{4};
|
|
let Inst{2-0} = Vm{2-0};
|
|
let Inst{5} = lane{1};
|
|
let Inst{3} = lane{0};
|
|
}
|
|
|
|
// Same as N3V except it doesn't have a data type suffix.
|
|
class N3VX<bit op24, bit op23, bits<2> op21_20, bits<4> op11_8, bit op6,
|
|
bit op4,
|
|
dag oops, dag iops, Format f, InstrItinClass itin,
|
|
string opc, string asm, string cstr, list<dag> pattern>
|
|
: NDataXI<oops, iops, f, itin, opc, asm, cstr, pattern> {
|
|
let Inst{24} = op24;
|
|
let Inst{23} = op23;
|
|
let Inst{21-20} = op21_20;
|
|
let Inst{11-8} = op11_8;
|
|
let Inst{6} = op6;
|
|
let Inst{4} = op4;
|
|
|
|
// Instruction operands.
|
|
bits<5> Vd;
|
|
bits<5> Vn;
|
|
bits<5> Vm;
|
|
|
|
let Inst{15-12} = Vd{3-0};
|
|
let Inst{22} = Vd{4};
|
|
let Inst{19-16} = Vn{3-0};
|
|
let Inst{7} = Vn{4};
|
|
let Inst{3-0} = Vm{3-0};
|
|
let Inst{5} = Vm{4};
|
|
}
|
|
|
|
// NEON VMOVs between scalar and core registers.
|
|
class NVLaneOp<bits<8> opcod1, bits<4> opcod2, bits<2> opcod3,
|
|
dag oops, dag iops, Format f, InstrItinClass itin,
|
|
string opc, string dt, string asm, list<dag> pattern>
|
|
: InstARM<AddrModeNone, 4, IndexModeNone, f, NeonDomain,
|
|
"", itin> {
|
|
let Inst{27-20} = opcod1;
|
|
let Inst{11-8} = opcod2;
|
|
let Inst{6-5} = opcod3;
|
|
let Inst{4} = 1;
|
|
// A8.6.303, A8.6.328, A8.6.329
|
|
let Inst{3-0} = 0b0000;
|
|
|
|
let OutOperandList = oops;
|
|
let InOperandList = !con(iops, (ins pred:$p));
|
|
let AsmString = !strconcat(opc, "${p}", ".", dt, "\t", asm);
|
|
let Pattern = pattern;
|
|
list<Predicate> Predicates = [HasNEON];
|
|
|
|
let PostEncoderMethod = "NEONThumb2DupPostEncoder";
|
|
let DecoderNamespace = "NEONDup";
|
|
|
|
bits<5> V;
|
|
bits<4> R;
|
|
bits<4> p;
|
|
bits<4> lane;
|
|
|
|
let Inst{31-28} = p{3-0};
|
|
let Inst{7} = V{4};
|
|
let Inst{19-16} = V{3-0};
|
|
let Inst{15-12} = R{3-0};
|
|
}
|
|
class NVGetLane<bits<8> opcod1, bits<4> opcod2, bits<2> opcod3,
|
|
dag oops, dag iops, InstrItinClass itin,
|
|
string opc, string dt, string asm, list<dag> pattern>
|
|
: NVLaneOp<opcod1, opcod2, opcod3, oops, iops, NGetLnFrm, itin,
|
|
opc, dt, asm, pattern>;
|
|
class NVSetLane<bits<8> opcod1, bits<4> opcod2, bits<2> opcod3,
|
|
dag oops, dag iops, InstrItinClass itin,
|
|
string opc, string dt, string asm, list<dag> pattern>
|
|
: NVLaneOp<opcod1, opcod2, opcod3, oops, iops, NSetLnFrm, itin,
|
|
opc, dt, asm, pattern>;
|
|
class NVDup<bits<8> opcod1, bits<4> opcod2, bits<2> opcod3,
|
|
dag oops, dag iops, InstrItinClass itin,
|
|
string opc, string dt, string asm, list<dag> pattern>
|
|
: NVLaneOp<opcod1, opcod2, opcod3, oops, iops, NDupFrm, itin,
|
|
opc, dt, asm, pattern>;
|
|
|
|
// Vector Duplicate Lane (from scalar to all elements)
|
|
class NVDupLane<bits<4> op19_16, bit op6, dag oops, dag iops,
|
|
InstrItinClass itin, string opc, string dt, string asm,
|
|
list<dag> pattern>
|
|
: NDataI<oops, iops, NVDupLnFrm, itin, opc, dt, asm, "", pattern> {
|
|
let Inst{24-23} = 0b11;
|
|
let Inst{21-20} = 0b11;
|
|
let Inst{19-16} = op19_16;
|
|
let Inst{11-7} = 0b11000;
|
|
let Inst{6} = op6;
|
|
let Inst{4} = 0;
|
|
|
|
bits<5> Vd;
|
|
bits<5> Vm;
|
|
|
|
let Inst{22} = Vd{4};
|
|
let Inst{15-12} = Vd{3-0};
|
|
let Inst{5} = Vm{4};
|
|
let Inst{3-0} = Vm{3-0};
|
|
}
|
|
|
|
// NEONFPPat - Same as Pat<>, but requires that the compiler be using NEON
|
|
// for single-precision FP.
|
|
class NEONFPPat<dag pattern, dag result> : Pat<pattern, result> {
|
|
list<Predicate> Predicates = [HasNEON,UseNEONForFP];
|
|
}
|
|
|
|
// VFP/NEON Instruction aliases for type suffices.
|
|
class VFPDataTypeInstAlias<string opc, string dt, string asm, dag Result> :
|
|
InstAlias<!strconcat(opc, dt, "\t", asm), Result>, Requires<[HasVFP2]>;
|
|
|
|
multiclass VFPDTAnyInstAlias<string opc, string asm, dag Result> {
|
|
def : VFPDataTypeInstAlias<opc, ".8", asm, Result>;
|
|
def : VFPDataTypeInstAlias<opc, ".16", asm, Result>;
|
|
def : VFPDataTypeInstAlias<opc, ".32", asm, Result>;
|
|
def : VFPDataTypeInstAlias<opc, ".64", asm, Result>;
|
|
}
|
|
|
|
multiclass NEONDTAnyInstAlias<string opc, string asm, dag Result> {
|
|
let Predicates = [HasNEON] in {
|
|
def : VFPDataTypeInstAlias<opc, ".8", asm, Result>;
|
|
def : VFPDataTypeInstAlias<opc, ".16", asm, Result>;
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def : VFPDataTypeInstAlias<opc, ".32", asm, Result>;
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def : VFPDataTypeInstAlias<opc, ".64", asm, Result>;
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}
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|
}
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// The same alias classes using AsmPseudo instead, for the more complex
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// stuff in NEON that InstAlias can't quite handle.
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|
// Note that we can't use anonymous defm references here like we can
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// above, as we care about the ultimate instruction enum names generated, unlike
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|
// for instalias defs.
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|
class NEONDataTypeAsmPseudoInst<string opc, string dt, string asm, dag iops> :
|
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AsmPseudoInst<!strconcat(opc, dt, "\t", asm), iops>, Requires<[HasNEON]>;
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// Data type suffix token aliases. Implements Table A7-3 in the ARM ARM.
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def : TokenAlias<".s8", ".i8">;
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|
def : TokenAlias<".u8", ".i8">;
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def : TokenAlias<".s16", ".i16">;
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|
def : TokenAlias<".u16", ".i16">;
|
|
def : TokenAlias<".s32", ".i32">;
|
|
def : TokenAlias<".u32", ".i32">;
|
|
def : TokenAlias<".s64", ".i64">;
|
|
def : TokenAlias<".u64", ".i64">;
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|
|
|
def : TokenAlias<".i8", ".8">;
|
|
def : TokenAlias<".i16", ".16">;
|
|
def : TokenAlias<".i32", ".32">;
|
|
def : TokenAlias<".i64", ".64">;
|
|
|
|
def : TokenAlias<".p8", ".8">;
|
|
def : TokenAlias<".p16", ".16">;
|
|
|
|
def : TokenAlias<".f32", ".32">;
|
|
def : TokenAlias<".f64", ".64">;
|
|
def : TokenAlias<".f", ".f32">;
|
|
def : TokenAlias<".d", ".f64">;
|