| //===-- X86InstComments.cpp - Generate verbose-asm comments for instrs ----===// |
| // |
| // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
| // See https://llvm.org/LICENSE.txt for license information. |
| // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
| // |
| //===----------------------------------------------------------------------===// |
| // |
| // This defines functionality used to emit comments about X86 instructions to |
| // an output stream for -fverbose-asm. |
| // |
| //===----------------------------------------------------------------------===// |
| |
| #include "X86InstComments.h" |
| #include "X86ATTInstPrinter.h" |
| #include "X86BaseInfo.h" |
| #include "X86MCTargetDesc.h" |
| #include "X86ShuffleDecode.h" |
| #include "llvm/MC/MCInst.h" |
| #include "llvm/MC/MCInstrInfo.h" |
| #include "llvm/Support/raw_ostream.h" |
| |
| using namespace llvm; |
| |
| #define CASE_SSE_INS_COMMON(Inst, src) \ |
| case X86::Inst##src: |
| |
| #define CASE_AVX_INS_COMMON(Inst, Suffix, src) \ |
| case X86::V##Inst##Suffix##src: |
| |
| #define CASE_MASK_INS_COMMON(Inst, Suffix, src) \ |
| case X86::V##Inst##Suffix##src##k: |
| |
| #define CASE_MASKZ_INS_COMMON(Inst, Suffix, src) \ |
| case X86::V##Inst##Suffix##src##kz: |
| |
| #define CASE_AVX512_INS_COMMON(Inst, Suffix, src) \ |
| CASE_AVX_INS_COMMON(Inst, Suffix, src) \ |
| CASE_MASK_INS_COMMON(Inst, Suffix, src) \ |
| CASE_MASKZ_INS_COMMON(Inst, Suffix, src) |
| |
| #define CASE_MOVDUP(Inst, src) \ |
| CASE_AVX512_INS_COMMON(Inst, Z, r##src) \ |
| CASE_AVX512_INS_COMMON(Inst, Z256, r##src) \ |
| CASE_AVX512_INS_COMMON(Inst, Z128, r##src) \ |
| CASE_AVX_INS_COMMON(Inst, , r##src) \ |
| CASE_AVX_INS_COMMON(Inst, Y, r##src) \ |
| CASE_SSE_INS_COMMON(Inst, r##src) |
| |
| #define CASE_MASK_MOVDUP(Inst, src) \ |
| CASE_MASK_INS_COMMON(Inst, Z, r##src) \ |
| CASE_MASK_INS_COMMON(Inst, Z256, r##src) \ |
| CASE_MASK_INS_COMMON(Inst, Z128, r##src) |
| |
| #define CASE_MASKZ_MOVDUP(Inst, src) \ |
| CASE_MASKZ_INS_COMMON(Inst, Z, r##src) \ |
| CASE_MASKZ_INS_COMMON(Inst, Z256, r##src) \ |
| CASE_MASKZ_INS_COMMON(Inst, Z128, r##src) |
| |
| #define CASE_PMOVZX(Inst, src) \ |
| CASE_AVX512_INS_COMMON(Inst, Z, r##src) \ |
| CASE_AVX512_INS_COMMON(Inst, Z256, r##src) \ |
| CASE_AVX512_INS_COMMON(Inst, Z128, r##src) \ |
| CASE_AVX_INS_COMMON(Inst, , r##src) \ |
| CASE_AVX_INS_COMMON(Inst, Y, r##src) \ |
| CASE_SSE_INS_COMMON(Inst, r##src) |
| |
| #define CASE_MASK_PMOVZX(Inst, src) \ |
| CASE_MASK_INS_COMMON(Inst, Z, r##src) \ |
| CASE_MASK_INS_COMMON(Inst, Z256, r##src) \ |
| CASE_MASK_INS_COMMON(Inst, Z128, r##src) |
| |
| #define CASE_MASKZ_PMOVZX(Inst, src) \ |
| CASE_MASKZ_INS_COMMON(Inst, Z, r##src) \ |
| CASE_MASKZ_INS_COMMON(Inst, Z256, r##src) \ |
| CASE_MASKZ_INS_COMMON(Inst, Z128, r##src) |
| |
| #define CASE_UNPCK(Inst, src) \ |
| CASE_AVX512_INS_COMMON(Inst, Z, r##src) \ |
| CASE_AVX512_INS_COMMON(Inst, Z256, r##src) \ |
| CASE_AVX512_INS_COMMON(Inst, Z128, r##src) \ |
| CASE_AVX_INS_COMMON(Inst, , r##src) \ |
| CASE_AVX_INS_COMMON(Inst, Y, r##src) \ |
| CASE_SSE_INS_COMMON(Inst, r##src) |
| |
| #define CASE_MASK_UNPCK(Inst, src) \ |
| CASE_MASK_INS_COMMON(Inst, Z, r##src) \ |
| CASE_MASK_INS_COMMON(Inst, Z256, r##src) \ |
| CASE_MASK_INS_COMMON(Inst, Z128, r##src) |
| |
| #define CASE_MASKZ_UNPCK(Inst, src) \ |
| CASE_MASKZ_INS_COMMON(Inst, Z, r##src) \ |
| CASE_MASKZ_INS_COMMON(Inst, Z256, r##src) \ |
| CASE_MASKZ_INS_COMMON(Inst, Z128, r##src) |
| |
| #define CASE_SHUF(Inst, suf) \ |
| CASE_AVX512_INS_COMMON(Inst, Z, suf) \ |
| CASE_AVX512_INS_COMMON(Inst, Z256, suf) \ |
| CASE_AVX512_INS_COMMON(Inst, Z128, suf) \ |
| CASE_AVX_INS_COMMON(Inst, , suf) \ |
| CASE_AVX_INS_COMMON(Inst, Y, suf) \ |
| CASE_SSE_INS_COMMON(Inst, suf) |
| |
| #define CASE_MASK_SHUF(Inst, src) \ |
| CASE_MASK_INS_COMMON(Inst, Z, r##src##i) \ |
| CASE_MASK_INS_COMMON(Inst, Z256, r##src##i) \ |
| CASE_MASK_INS_COMMON(Inst, Z128, r##src##i) |
| |
| #define CASE_MASKZ_SHUF(Inst, src) \ |
| CASE_MASKZ_INS_COMMON(Inst, Z, r##src##i) \ |
| CASE_MASKZ_INS_COMMON(Inst, Z256, r##src##i) \ |
| CASE_MASKZ_INS_COMMON(Inst, Z128, r##src##i) |
| |
| #define CASE_VPERMILPI(Inst, src) \ |
| CASE_AVX512_INS_COMMON(Inst, Z, src##i) \ |
| CASE_AVX512_INS_COMMON(Inst, Z256, src##i) \ |
| CASE_AVX512_INS_COMMON(Inst, Z128, src##i) \ |
| CASE_AVX_INS_COMMON(Inst, , src##i) \ |
| CASE_AVX_INS_COMMON(Inst, Y, src##i) |
| |
| #define CASE_MASK_VPERMILPI(Inst, src) \ |
| CASE_MASK_INS_COMMON(Inst, Z, src##i) \ |
| CASE_MASK_INS_COMMON(Inst, Z256, src##i) \ |
| CASE_MASK_INS_COMMON(Inst, Z128, src##i) |
| |
| #define CASE_MASKZ_VPERMILPI(Inst, src) \ |
| CASE_MASKZ_INS_COMMON(Inst, Z, src##i) \ |
| CASE_MASKZ_INS_COMMON(Inst, Z256, src##i) \ |
| CASE_MASKZ_INS_COMMON(Inst, Z128, src##i) |
| |
| #define CASE_VPERM(Inst, src) \ |
| CASE_AVX512_INS_COMMON(Inst, Z, src##i) \ |
| CASE_AVX512_INS_COMMON(Inst, Z256, src##i) \ |
| CASE_AVX_INS_COMMON(Inst, Y, src##i) |
| |
| #define CASE_MASK_VPERM(Inst, src) \ |
| CASE_MASK_INS_COMMON(Inst, Z, src##i) \ |
| CASE_MASK_INS_COMMON(Inst, Z256, src##i) |
| |
| #define CASE_MASKZ_VPERM(Inst, src) \ |
| CASE_MASKZ_INS_COMMON(Inst, Z, src##i) \ |
| CASE_MASKZ_INS_COMMON(Inst, Z256, src##i) |
| |
| #define CASE_VSHUF(Inst, src) \ |
| CASE_AVX512_INS_COMMON(SHUFF##Inst, Z, r##src##i) \ |
| CASE_AVX512_INS_COMMON(SHUFI##Inst, Z, r##src##i) \ |
| CASE_AVX512_INS_COMMON(SHUFF##Inst, Z256, r##src##i) \ |
| CASE_AVX512_INS_COMMON(SHUFI##Inst, Z256, r##src##i) |
| |
| #define CASE_MASK_VSHUF(Inst, src) \ |
| CASE_MASK_INS_COMMON(SHUFF##Inst, Z, r##src##i) \ |
| CASE_MASK_INS_COMMON(SHUFI##Inst, Z, r##src##i) \ |
| CASE_MASK_INS_COMMON(SHUFF##Inst, Z256, r##src##i) \ |
| CASE_MASK_INS_COMMON(SHUFI##Inst, Z256, r##src##i) |
| |
| #define CASE_MASKZ_VSHUF(Inst, src) \ |
| CASE_MASKZ_INS_COMMON(SHUFF##Inst, Z, r##src##i) \ |
| CASE_MASKZ_INS_COMMON(SHUFI##Inst, Z, r##src##i) \ |
| CASE_MASKZ_INS_COMMON(SHUFF##Inst, Z256, r##src##i) \ |
| CASE_MASKZ_INS_COMMON(SHUFI##Inst, Z256, r##src##i) |
| |
| #define CASE_AVX512_FMA(Inst, suf) \ |
| CASE_AVX512_INS_COMMON(Inst, Z, suf) \ |
| CASE_AVX512_INS_COMMON(Inst, Z256, suf) \ |
| CASE_AVX512_INS_COMMON(Inst, Z128, suf) |
| |
| #define CASE_FMA(Inst, suf) \ |
| CASE_AVX512_FMA(Inst, suf) \ |
| CASE_AVX_INS_COMMON(Inst, , suf) \ |
| CASE_AVX_INS_COMMON(Inst, Y, suf) |
| |
| #define CASE_FMA_PACKED_REG(Inst) \ |
| CASE_FMA(Inst##PD, r) \ |
| CASE_FMA(Inst##PS, r) |
| |
| #define CASE_FMA_PACKED_MEM(Inst) \ |
| CASE_FMA(Inst##PD, m) \ |
| CASE_FMA(Inst##PS, m) \ |
| CASE_AVX512_FMA(Inst##PD, mb) \ |
| CASE_AVX512_FMA(Inst##PS, mb) |
| |
| #define CASE_FMA_SCALAR_REG(Inst) \ |
| CASE_AVX_INS_COMMON(Inst##SD, , r) \ |
| CASE_AVX_INS_COMMON(Inst##SS, , r) \ |
| CASE_AVX_INS_COMMON(Inst##SD, , r_Int) \ |
| CASE_AVX_INS_COMMON(Inst##SS, , r_Int) \ |
| CASE_AVX_INS_COMMON(Inst##SD, Z, r) \ |
| CASE_AVX_INS_COMMON(Inst##SS, Z, r) \ |
| CASE_AVX512_INS_COMMON(Inst##SD, Z, r_Int) \ |
| CASE_AVX512_INS_COMMON(Inst##SS, Z, r_Int) |
| |
| #define CASE_FMA_SCALAR_MEM(Inst) \ |
| CASE_AVX_INS_COMMON(Inst##SD, , m) \ |
| CASE_AVX_INS_COMMON(Inst##SS, , m) \ |
| CASE_AVX_INS_COMMON(Inst##SD, , m_Int) \ |
| CASE_AVX_INS_COMMON(Inst##SS, , m_Int) \ |
| CASE_AVX_INS_COMMON(Inst##SD, Z, m) \ |
| CASE_AVX_INS_COMMON(Inst##SS, Z, m) \ |
| CASE_AVX512_INS_COMMON(Inst##SD, Z, m_Int) \ |
| CASE_AVX512_INS_COMMON(Inst##SS, Z, m_Int) |
| |
| #define CASE_FMA4(Inst, suf) \ |
| CASE_AVX_INS_COMMON(Inst, 4, suf) \ |
| CASE_AVX_INS_COMMON(Inst, 4Y, suf) |
| |
| #define CASE_FMA4_PACKED_RR(Inst) \ |
| CASE_FMA4(Inst##PD, rr) \ |
| CASE_FMA4(Inst##PS, rr) |
| |
| #define CASE_FMA4_PACKED_RM(Inst) \ |
| CASE_FMA4(Inst##PD, rm) \ |
| CASE_FMA4(Inst##PS, rm) |
| |
| #define CASE_FMA4_PACKED_MR(Inst) \ |
| CASE_FMA4(Inst##PD, mr) \ |
| CASE_FMA4(Inst##PS, mr) |
| |
| #define CASE_FMA4_SCALAR_RR(Inst) \ |
| CASE_AVX_INS_COMMON(Inst##SD4, , rr) \ |
| CASE_AVX_INS_COMMON(Inst##SS4, , rr) \ |
| CASE_AVX_INS_COMMON(Inst##SD4, , rr_Int) \ |
| CASE_AVX_INS_COMMON(Inst##SS4, , rr_Int) |
| |
| #define CASE_FMA4_SCALAR_RM(Inst) \ |
| CASE_AVX_INS_COMMON(Inst##SD4, , rm) \ |
| CASE_AVX_INS_COMMON(Inst##SS4, , rm) \ |
| CASE_AVX_INS_COMMON(Inst##SD4, , rm_Int) \ |
| CASE_AVX_INS_COMMON(Inst##SS4, , rm_Int) |
| |
| #define CASE_FMA4_SCALAR_MR(Inst) \ |
| CASE_AVX_INS_COMMON(Inst##SD4, , mr) \ |
| CASE_AVX_INS_COMMON(Inst##SS4, , mr) \ |
| CASE_AVX_INS_COMMON(Inst##SD4, , mr_Int) \ |
| CASE_AVX_INS_COMMON(Inst##SS4, , mr_Int) |
| |
| static unsigned getVectorRegSize(unsigned RegNo) { |
| if (X86::ZMM0 <= RegNo && RegNo <= X86::ZMM31) |
| return 512; |
| if (X86::YMM0 <= RegNo && RegNo <= X86::YMM31) |
| return 256; |
| if (X86::XMM0 <= RegNo && RegNo <= X86::XMM31) |
| return 128; |
| if (X86::MM0 <= RegNo && RegNo <= X86::MM7) |
| return 64; |
| |
| llvm_unreachable("Unknown vector reg!"); |
| } |
| |
| static unsigned getRegOperandNumElts(const MCInst *MI, unsigned ScalarSize, |
| unsigned OperandIndex) { |
| unsigned OpReg = MI->getOperand(OperandIndex).getReg(); |
| return getVectorRegSize(OpReg) / ScalarSize; |
| } |
| |
| static const char *getRegName(unsigned Reg) { |
| return X86ATTInstPrinter::getRegisterName(Reg); |
| } |
| |
| /// Wraps the destination register name with AVX512 mask/maskz filtering. |
| static void printMasking(raw_ostream &OS, const MCInst *MI, |
| const MCInstrInfo &MCII) { |
| const MCInstrDesc &Desc = MCII.get(MI->getOpcode()); |
| uint64_t TSFlags = Desc.TSFlags; |
| |
| if (!(TSFlags & X86II::EVEX_K)) |
| return; |
| |
| bool MaskWithZero = (TSFlags & X86II::EVEX_Z); |
| unsigned MaskOp = Desc.getNumDefs(); |
| |
| if (Desc.getOperandConstraint(MaskOp, MCOI::TIED_TO) != -1) |
| ++MaskOp; |
| |
| const char *MaskRegName = getRegName(MI->getOperand(MaskOp).getReg()); |
| |
| // MASK: zmmX {%kY} |
| OS << " {%" << MaskRegName << "}"; |
| |
| // MASKZ: zmmX {%kY} {z} |
| if (MaskWithZero) |
| OS << " {z}"; |
| } |
| |
| static bool printFMAComments(const MCInst *MI, raw_ostream &OS, |
| const MCInstrInfo &MCII) { |
| const char *Mul1Name = nullptr, *Mul2Name = nullptr, *AccName = nullptr; |
| unsigned NumOperands = MI->getNumOperands(); |
| bool RegForm = false; |
| bool Negate = false; |
| StringRef AccStr = "+"; |
| |
| // The operands for FMA3 instructions without rounding fall into two forms: |
| // dest, src1, src2, src3 |
| // dest, src1, mask, src2, src3 |
| // Where src3 is either a register or 5 memory address operands. So to find |
| // dest and src1 we can index from the front. To find src2 and src3 we can |
| // index from the end by taking into account memory vs register form when |
| // finding src2. |
| |
| // The operands for FMA4 instructions: |
| // dest, src1, src2, src3 |
| // Where src2 OR src3 are either a register or 5 memory address operands. So |
| // to find dest and src1 we can index from the front, src2 (reg/mem) follows |
| // and then src3 (reg) will be at the end. |
| |
| switch (MI->getOpcode()) { |
| default: |
| return false; |
| |
| CASE_FMA4_PACKED_RR(FMADD) |
| CASE_FMA4_SCALAR_RR(FMADD) |
| AccName = getRegName(MI->getOperand(NumOperands - 1).getReg()); |
| LLVM_FALLTHROUGH; |
| CASE_FMA4_PACKED_RM(FMADD) |
| CASE_FMA4_SCALAR_RM(FMADD) |
| Mul2Name = getRegName(MI->getOperand(2).getReg()); |
| Mul1Name = getRegName(MI->getOperand(1).getReg()); |
| break; |
| CASE_FMA4_PACKED_MR(FMADD) |
| CASE_FMA4_SCALAR_MR(FMADD) |
| AccName = getRegName(MI->getOperand(NumOperands - 1).getReg()); |
| Mul1Name = getRegName(MI->getOperand(1).getReg()); |
| break; |
| |
| CASE_FMA4_PACKED_RR(FMSUB) |
| CASE_FMA4_SCALAR_RR(FMSUB) |
| AccName = getRegName(MI->getOperand(NumOperands - 1).getReg()); |
| LLVM_FALLTHROUGH; |
| CASE_FMA4_PACKED_RM(FMSUB) |
| CASE_FMA4_SCALAR_RM(FMSUB) |
| Mul2Name = getRegName(MI->getOperand(2).getReg()); |
| Mul1Name = getRegName(MI->getOperand(1).getReg()); |
| AccStr = "-"; |
| break; |
| CASE_FMA4_PACKED_MR(FMSUB) |
| CASE_FMA4_SCALAR_MR(FMSUB) |
| AccName = getRegName(MI->getOperand(NumOperands - 1).getReg()); |
| Mul1Name = getRegName(MI->getOperand(1).getReg()); |
| AccStr = "-"; |
| break; |
| |
| CASE_FMA4_PACKED_RR(FNMADD) |
| CASE_FMA4_SCALAR_RR(FNMADD) |
| AccName = getRegName(MI->getOperand(NumOperands - 1).getReg()); |
| LLVM_FALLTHROUGH; |
| CASE_FMA4_PACKED_RM(FNMADD) |
| CASE_FMA4_SCALAR_RM(FNMADD) |
| Mul2Name = getRegName(MI->getOperand(2).getReg()); |
| Mul1Name = getRegName(MI->getOperand(1).getReg()); |
| Negate = true; |
| break; |
| CASE_FMA4_PACKED_MR(FNMADD) |
| CASE_FMA4_SCALAR_MR(FNMADD) |
| AccName = getRegName(MI->getOperand(NumOperands - 1).getReg()); |
| Mul1Name = getRegName(MI->getOperand(1).getReg()); |
| Negate = true; |
| break; |
| |
| CASE_FMA4_PACKED_RR(FNMSUB) |
| CASE_FMA4_SCALAR_RR(FNMSUB) |
| AccName = getRegName(MI->getOperand(NumOperands - 1).getReg()); |
| LLVM_FALLTHROUGH; |
| CASE_FMA4_PACKED_RM(FNMSUB) |
| CASE_FMA4_SCALAR_RM(FNMSUB) |
| Mul2Name = getRegName(MI->getOperand(2).getReg()); |
| Mul1Name = getRegName(MI->getOperand(1).getReg()); |
| AccStr = "-"; |
| Negate = true; |
| break; |
| CASE_FMA4_PACKED_MR(FNMSUB) |
| CASE_FMA4_SCALAR_MR(FNMSUB) |
| AccName = getRegName(MI->getOperand(NumOperands - 1).getReg()); |
| Mul1Name = getRegName(MI->getOperand(1).getReg()); |
| AccStr = "-"; |
| Negate = true; |
| break; |
| |
| CASE_FMA4_PACKED_RR(FMADDSUB) |
| AccName = getRegName(MI->getOperand(NumOperands - 1).getReg()); |
| LLVM_FALLTHROUGH; |
| CASE_FMA4_PACKED_RM(FMADDSUB) |
| Mul2Name = getRegName(MI->getOperand(2).getReg()); |
| Mul1Name = getRegName(MI->getOperand(1).getReg()); |
| AccStr = "+/-"; |
| break; |
| CASE_FMA4_PACKED_MR(FMADDSUB) |
| AccName = getRegName(MI->getOperand(NumOperands - 1).getReg()); |
| Mul1Name = getRegName(MI->getOperand(1).getReg()); |
| AccStr = "+/-"; |
| break; |
| |
| CASE_FMA4_PACKED_RR(FMSUBADD) |
| AccName = getRegName(MI->getOperand(NumOperands - 1).getReg()); |
| LLVM_FALLTHROUGH; |
| CASE_FMA4_PACKED_RM(FMSUBADD) |
| Mul2Name = getRegName(MI->getOperand(2).getReg()); |
| Mul1Name = getRegName(MI->getOperand(1).getReg()); |
| AccStr = "-/+"; |
| break; |
| CASE_FMA4_PACKED_MR(FMSUBADD) |
| AccName = getRegName(MI->getOperand(NumOperands - 1).getReg()); |
| Mul1Name = getRegName(MI->getOperand(1).getReg()); |
| AccStr = "-/+"; |
| break; |
| |
| CASE_FMA_PACKED_REG(FMADD132) |
| CASE_FMA_SCALAR_REG(FMADD132) |
| Mul2Name = getRegName(MI->getOperand(NumOperands - 1).getReg()); |
| RegForm = true; |
| LLVM_FALLTHROUGH; |
| CASE_FMA_PACKED_MEM(FMADD132) |
| CASE_FMA_SCALAR_MEM(FMADD132) |
| AccName = getRegName(MI->getOperand(NumOperands-(RegForm?2:6)).getReg()); |
| Mul1Name = getRegName(MI->getOperand(1).getReg()); |
| break; |
| |
| CASE_FMA_PACKED_REG(FMADD213) |
| CASE_FMA_SCALAR_REG(FMADD213) |
| AccName = getRegName(MI->getOperand(NumOperands - 1).getReg()); |
| RegForm = true; |
| LLVM_FALLTHROUGH; |
| CASE_FMA_PACKED_MEM(FMADD213) |
| CASE_FMA_SCALAR_MEM(FMADD213) |
| Mul1Name = getRegName(MI->getOperand(NumOperands-(RegForm?2:6)).getReg()); |
| Mul2Name = getRegName(MI->getOperand(1).getReg()); |
| break; |
| |
| CASE_FMA_PACKED_REG(FMADD231) |
| CASE_FMA_SCALAR_REG(FMADD231) |
| Mul2Name = getRegName(MI->getOperand(NumOperands - 1).getReg()); |
| RegForm = true; |
| LLVM_FALLTHROUGH; |
| CASE_FMA_PACKED_MEM(FMADD231) |
| CASE_FMA_SCALAR_MEM(FMADD231) |
| Mul1Name = getRegName(MI->getOperand(NumOperands-(RegForm?2:6)).getReg()); |
| AccName = getRegName(MI->getOperand(1).getReg()); |
| break; |
| |
| CASE_FMA_PACKED_REG(FMSUB132) |
| CASE_FMA_SCALAR_REG(FMSUB132) |
| Mul2Name = getRegName(MI->getOperand(NumOperands - 1).getReg()); |
| RegForm = true; |
| LLVM_FALLTHROUGH; |
| CASE_FMA_PACKED_MEM(FMSUB132) |
| CASE_FMA_SCALAR_MEM(FMSUB132) |
| AccName = getRegName(MI->getOperand(NumOperands-(RegForm?2:6)).getReg()); |
| Mul1Name = getRegName(MI->getOperand(1).getReg()); |
| AccStr = "-"; |
| break; |
| |
| CASE_FMA_PACKED_REG(FMSUB213) |
| CASE_FMA_SCALAR_REG(FMSUB213) |
| AccName = getRegName(MI->getOperand(NumOperands - 1).getReg()); |
| RegForm = true; |
| LLVM_FALLTHROUGH; |
| CASE_FMA_PACKED_MEM(FMSUB213) |
| CASE_FMA_SCALAR_MEM(FMSUB213) |
| Mul1Name = getRegName(MI->getOperand(NumOperands-(RegForm?2:6)).getReg()); |
| Mul2Name = getRegName(MI->getOperand(1).getReg()); |
| AccStr = "-"; |
| break; |
| |
| CASE_FMA_PACKED_REG(FMSUB231) |
| CASE_FMA_SCALAR_REG(FMSUB231) |
| Mul2Name = getRegName(MI->getOperand(NumOperands - 1).getReg()); |
| RegForm = true; |
| LLVM_FALLTHROUGH; |
| CASE_FMA_PACKED_MEM(FMSUB231) |
| CASE_FMA_SCALAR_MEM(FMSUB231) |
| Mul1Name = getRegName(MI->getOperand(NumOperands-(RegForm?2:6)).getReg()); |
| AccName = getRegName(MI->getOperand(1).getReg()); |
| AccStr = "-"; |
| break; |
| |
| CASE_FMA_PACKED_REG(FNMADD132) |
| CASE_FMA_SCALAR_REG(FNMADD132) |
| Mul2Name = getRegName(MI->getOperand(NumOperands - 1).getReg()); |
| RegForm = true; |
| LLVM_FALLTHROUGH; |
| CASE_FMA_PACKED_MEM(FNMADD132) |
| CASE_FMA_SCALAR_MEM(FNMADD132) |
| AccName = getRegName(MI->getOperand(NumOperands-(RegForm?2:6)).getReg()); |
| Mul1Name = getRegName(MI->getOperand(1).getReg()); |
| Negate = true; |
| break; |
| |
| CASE_FMA_PACKED_REG(FNMADD213) |
| CASE_FMA_SCALAR_REG(FNMADD213) |
| AccName = getRegName(MI->getOperand(NumOperands - 1).getReg()); |
| RegForm = true; |
| LLVM_FALLTHROUGH; |
| CASE_FMA_PACKED_MEM(FNMADD213) |
| CASE_FMA_SCALAR_MEM(FNMADD213) |
| Mul1Name = getRegName(MI->getOperand(NumOperands-(RegForm?2:6)).getReg()); |
| Mul2Name = getRegName(MI->getOperand(1).getReg()); |
| Negate = true; |
| break; |
| |
| CASE_FMA_PACKED_REG(FNMADD231) |
| CASE_FMA_SCALAR_REG(FNMADD231) |
| Mul2Name = getRegName(MI->getOperand(NumOperands - 1).getReg()); |
| RegForm = true; |
| LLVM_FALLTHROUGH; |
| CASE_FMA_PACKED_MEM(FNMADD231) |
| CASE_FMA_SCALAR_MEM(FNMADD231) |
| Mul1Name = getRegName(MI->getOperand(NumOperands-(RegForm?2:6)).getReg()); |
| AccName = getRegName(MI->getOperand(1).getReg()); |
| Negate = true; |
| break; |
| |
| CASE_FMA_PACKED_REG(FNMSUB132) |
| CASE_FMA_SCALAR_REG(FNMSUB132) |
| Mul2Name = getRegName(MI->getOperand(NumOperands - 1).getReg()); |
| RegForm = true; |
| LLVM_FALLTHROUGH; |
| CASE_FMA_PACKED_MEM(FNMSUB132) |
| CASE_FMA_SCALAR_MEM(FNMSUB132) |
| AccName = getRegName(MI->getOperand(NumOperands-(RegForm?2:6)).getReg()); |
| Mul1Name = getRegName(MI->getOperand(1).getReg()); |
| AccStr = "-"; |
| Negate = true; |
| break; |
| |
| CASE_FMA_PACKED_REG(FNMSUB213) |
| CASE_FMA_SCALAR_REG(FNMSUB213) |
| AccName = getRegName(MI->getOperand(NumOperands - 1).getReg()); |
| RegForm = true; |
| LLVM_FALLTHROUGH; |
| CASE_FMA_PACKED_MEM(FNMSUB213) |
| CASE_FMA_SCALAR_MEM(FNMSUB213) |
| Mul1Name = getRegName(MI->getOperand(NumOperands-(RegForm?2:6)).getReg()); |
| Mul2Name = getRegName(MI->getOperand(1).getReg()); |
| AccStr = "-"; |
| Negate = true; |
| break; |
| |
| CASE_FMA_PACKED_REG(FNMSUB231) |
| CASE_FMA_SCALAR_REG(FNMSUB231) |
| Mul2Name = getRegName(MI->getOperand(NumOperands - 1).getReg()); |
| RegForm = true; |
| LLVM_FALLTHROUGH; |
| CASE_FMA_PACKED_MEM(FNMSUB231) |
| CASE_FMA_SCALAR_MEM(FNMSUB231) |
| Mul1Name = getRegName(MI->getOperand(NumOperands-(RegForm?2:6)).getReg()); |
| AccName = getRegName(MI->getOperand(1).getReg()); |
| AccStr = "-"; |
| Negate = true; |
| break; |
| |
| CASE_FMA_PACKED_REG(FMADDSUB132) |
| Mul2Name = getRegName(MI->getOperand(NumOperands - 1).getReg()); |
| RegForm = true; |
| LLVM_FALLTHROUGH; |
| CASE_FMA_PACKED_MEM(FMADDSUB132) |
| AccName = getRegName(MI->getOperand(NumOperands-(RegForm?2:6)).getReg()); |
| Mul1Name = getRegName(MI->getOperand(1).getReg()); |
| AccStr = "+/-"; |
| break; |
| |
| CASE_FMA_PACKED_REG(FMADDSUB213) |
| AccName = getRegName(MI->getOperand(NumOperands - 1).getReg()); |
| RegForm = true; |
| LLVM_FALLTHROUGH; |
| CASE_FMA_PACKED_MEM(FMADDSUB213) |
| Mul1Name = getRegName(MI->getOperand(NumOperands-(RegForm?2:6)).getReg()); |
| Mul2Name = getRegName(MI->getOperand(1).getReg()); |
| AccStr = "+/-"; |
| break; |
| |
| CASE_FMA_PACKED_REG(FMADDSUB231) |
| Mul2Name = getRegName(MI->getOperand(NumOperands - 1).getReg()); |
| RegForm = true; |
| LLVM_FALLTHROUGH; |
| CASE_FMA_PACKED_MEM(FMADDSUB231) |
| Mul1Name = getRegName(MI->getOperand(NumOperands-(RegForm?2:6)).getReg()); |
| AccName = getRegName(MI->getOperand(1).getReg()); |
| AccStr = "+/-"; |
| break; |
| |
| CASE_FMA_PACKED_REG(FMSUBADD132) |
| Mul2Name = getRegName(MI->getOperand(NumOperands - 1).getReg()); |
| RegForm = true; |
| LLVM_FALLTHROUGH; |
| CASE_FMA_PACKED_MEM(FMSUBADD132) |
| AccName = getRegName(MI->getOperand(NumOperands-(RegForm?2:6)).getReg()); |
| Mul1Name = getRegName(MI->getOperand(1).getReg()); |
| AccStr = "-/+"; |
| break; |
| |
| CASE_FMA_PACKED_REG(FMSUBADD213) |
| AccName = getRegName(MI->getOperand(NumOperands - 1).getReg()); |
| RegForm = true; |
| LLVM_FALLTHROUGH; |
| CASE_FMA_PACKED_MEM(FMSUBADD213) |
| Mul1Name = getRegName(MI->getOperand(NumOperands-(RegForm?2:6)).getReg()); |
| Mul2Name = getRegName(MI->getOperand(1).getReg()); |
| AccStr = "-/+"; |
| break; |
| |
| CASE_FMA_PACKED_REG(FMSUBADD231) |
| Mul2Name = getRegName(MI->getOperand(NumOperands - 1).getReg()); |
| RegForm = true; |
| LLVM_FALLTHROUGH; |
| CASE_FMA_PACKED_MEM(FMSUBADD231) |
| Mul1Name = getRegName(MI->getOperand(NumOperands-(RegForm?2:6)).getReg()); |
| AccName = getRegName(MI->getOperand(1).getReg()); |
| AccStr = "-/+"; |
| break; |
| } |
| |
| const char *DestName = getRegName(MI->getOperand(0).getReg()); |
| |
| if (!Mul1Name) Mul1Name = "mem"; |
| if (!Mul2Name) Mul2Name = "mem"; |
| if (!AccName) AccName = "mem"; |
| |
| OS << DestName; |
| printMasking(OS, MI, MCII); |
| OS << " = "; |
| |
| if (Negate) |
| OS << '-'; |
| |
| OS << '(' << Mul1Name << " * " << Mul2Name << ") " << AccStr << ' ' |
| << AccName; |
| |
| return true; |
| } |
| |
| |
| //===----------------------------------------------------------------------===// |
| // Top Level Entrypoint |
| //===----------------------------------------------------------------------===// |
| |
| /// EmitAnyX86InstComments - This function decodes x86 instructions and prints |
| /// newline terminated strings to the specified string if desired. This |
| /// information is shown in disassembly dumps when verbose assembly is enabled. |
| bool llvm::EmitAnyX86InstComments(const MCInst *MI, raw_ostream &OS, |
| const MCInstrInfo &MCII) { |
| // If this is a shuffle operation, the switch should fill in this state. |
| SmallVector<int, 8> ShuffleMask; |
| const char *DestName = nullptr, *Src1Name = nullptr, *Src2Name = nullptr; |
| unsigned NumOperands = MI->getNumOperands(); |
| bool RegForm = false; |
| |
| if (printFMAComments(MI, OS, MCII)) |
| return true; |
| |
| switch (MI->getOpcode()) { |
| default: |
| // Not an instruction for which we can decode comments. |
| return false; |
| |
| case X86::BLENDPDrri: |
| case X86::VBLENDPDrri: |
| case X86::VBLENDPDYrri: |
| Src2Name = getRegName(MI->getOperand(2).getReg()); |
| LLVM_FALLTHROUGH; |
| case X86::BLENDPDrmi: |
| case X86::VBLENDPDrmi: |
| case X86::VBLENDPDYrmi: |
| if (MI->getOperand(NumOperands - 1).isImm()) |
| DecodeBLENDMask(getRegOperandNumElts(MI, 64, 0), |
| MI->getOperand(NumOperands - 1).getImm(), |
| ShuffleMask); |
| Src1Name = getRegName(MI->getOperand(1).getReg()); |
| DestName = getRegName(MI->getOperand(0).getReg()); |
| break; |
| |
| case X86::BLENDPSrri: |
| case X86::VBLENDPSrri: |
| case X86::VBLENDPSYrri: |
| Src2Name = getRegName(MI->getOperand(2).getReg()); |
| LLVM_FALLTHROUGH; |
| case X86::BLENDPSrmi: |
| case X86::VBLENDPSrmi: |
| case X86::VBLENDPSYrmi: |
| if (MI->getOperand(NumOperands - 1).isImm()) |
| DecodeBLENDMask(getRegOperandNumElts(MI, 32, 0), |
| MI->getOperand(NumOperands - 1).getImm(), |
| ShuffleMask); |
| Src1Name = getRegName(MI->getOperand(1).getReg()); |
| DestName = getRegName(MI->getOperand(0).getReg()); |
| break; |
| |
| case X86::PBLENDWrri: |
| case X86::VPBLENDWrri: |
| case X86::VPBLENDWYrri: |
| Src2Name = getRegName(MI->getOperand(2).getReg()); |
| LLVM_FALLTHROUGH; |
| case X86::PBLENDWrmi: |
| case X86::VPBLENDWrmi: |
| case X86::VPBLENDWYrmi: |
| if (MI->getOperand(NumOperands - 1).isImm()) |
| DecodeBLENDMask(getRegOperandNumElts(MI, 16, 0), |
| MI->getOperand(NumOperands - 1).getImm(), |
| ShuffleMask); |
| Src1Name = getRegName(MI->getOperand(1).getReg()); |
| DestName = getRegName(MI->getOperand(0).getReg()); |
| break; |
| |
| case X86::VPBLENDDrri: |
| case X86::VPBLENDDYrri: |
| Src2Name = getRegName(MI->getOperand(2).getReg()); |
| LLVM_FALLTHROUGH; |
| case X86::VPBLENDDrmi: |
| case X86::VPBLENDDYrmi: |
| if (MI->getOperand(NumOperands - 1).isImm()) |
| DecodeBLENDMask(getRegOperandNumElts(MI, 32, 0), |
| MI->getOperand(NumOperands - 1).getImm(), |
| ShuffleMask); |
| Src1Name = getRegName(MI->getOperand(1).getReg()); |
| DestName = getRegName(MI->getOperand(0).getReg()); |
| break; |
| |
| case X86::INSERTPSrr: |
| case X86::VINSERTPSrr: |
| case X86::VINSERTPSZrr: |
| Src2Name = getRegName(MI->getOperand(2).getReg()); |
| LLVM_FALLTHROUGH; |
| case X86::INSERTPSrm: |
| case X86::VINSERTPSrm: |
| case X86::VINSERTPSZrm: |
| DestName = getRegName(MI->getOperand(0).getReg()); |
| Src1Name = getRegName(MI->getOperand(1).getReg()); |
| if (MI->getOperand(NumOperands - 1).isImm()) |
| DecodeINSERTPSMask(MI->getOperand(NumOperands - 1).getImm(), |
| ShuffleMask); |
| break; |
| |
| case X86::MOVLHPSrr: |
| case X86::VMOVLHPSrr: |
| case X86::VMOVLHPSZrr: |
| Src2Name = getRegName(MI->getOperand(2).getReg()); |
| Src1Name = getRegName(MI->getOperand(1).getReg()); |
| DestName = getRegName(MI->getOperand(0).getReg()); |
| DecodeMOVLHPSMask(2, ShuffleMask); |
| break; |
| |
| case X86::MOVHLPSrr: |
| case X86::VMOVHLPSrr: |
| case X86::VMOVHLPSZrr: |
| Src2Name = getRegName(MI->getOperand(2).getReg()); |
| Src1Name = getRegName(MI->getOperand(1).getReg()); |
| DestName = getRegName(MI->getOperand(0).getReg()); |
| DecodeMOVHLPSMask(2, ShuffleMask); |
| break; |
| |
| case X86::MOVHPDrm: |
| case X86::VMOVHPDrm: |
| case X86::VMOVHPDZ128rm: |
| Src1Name = getRegName(MI->getOperand(1).getReg()); |
| DestName = getRegName(MI->getOperand(0).getReg()); |
| DecodeInsertElementMask(2, 1, 1, ShuffleMask); |
| break; |
| |
| case X86::MOVHPSrm: |
| case X86::VMOVHPSrm: |
| case X86::VMOVHPSZ128rm: |
| Src1Name = getRegName(MI->getOperand(1).getReg()); |
| DestName = getRegName(MI->getOperand(0).getReg()); |
| DecodeInsertElementMask(4, 2, 2, ShuffleMask); |
| break; |
| |
| case X86::MOVLPDrm: |
| case X86::VMOVLPDrm: |
| case X86::VMOVLPDZ128rm: |
| Src1Name = getRegName(MI->getOperand(1).getReg()); |
| DestName = getRegName(MI->getOperand(0).getReg()); |
| DecodeInsertElementMask(2, 0, 1, ShuffleMask); |
| break; |
| |
| case X86::MOVLPSrm: |
| case X86::VMOVLPSrm: |
| case X86::VMOVLPSZ128rm: |
| Src1Name = getRegName(MI->getOperand(1).getReg()); |
| DestName = getRegName(MI->getOperand(0).getReg()); |
| DecodeInsertElementMask(4, 0, 2, ShuffleMask); |
| break; |
| |
| CASE_MOVDUP(MOVSLDUP, r) |
| Src1Name = getRegName(MI->getOperand(NumOperands - 1).getReg()); |
| LLVM_FALLTHROUGH; |
| |
| CASE_MOVDUP(MOVSLDUP, m) |
| DestName = getRegName(MI->getOperand(0).getReg()); |
| DecodeMOVSLDUPMask(getRegOperandNumElts(MI, 32, 0), ShuffleMask); |
| break; |
| |
| CASE_MOVDUP(MOVSHDUP, r) |
| Src1Name = getRegName(MI->getOperand(NumOperands - 1).getReg()); |
| LLVM_FALLTHROUGH; |
| |
| CASE_MOVDUP(MOVSHDUP, m) |
| DestName = getRegName(MI->getOperand(0).getReg()); |
| DecodeMOVSHDUPMask(getRegOperandNumElts(MI, 32, 0), ShuffleMask); |
| break; |
| |
| CASE_MOVDUP(MOVDDUP, r) |
| Src1Name = getRegName(MI->getOperand(NumOperands - 1).getReg()); |
| LLVM_FALLTHROUGH; |
| |
| CASE_MOVDUP(MOVDDUP, m) |
| DestName = getRegName(MI->getOperand(0).getReg()); |
| DecodeMOVDDUPMask(getRegOperandNumElts(MI, 64, 0), ShuffleMask); |
| break; |
| |
| case X86::PSLLDQri: |
| case X86::VPSLLDQri: |
| case X86::VPSLLDQYri: |
| case X86::VPSLLDQZ128ri: |
| case X86::VPSLLDQZ256ri: |
| case X86::VPSLLDQZri: |
| Src1Name = getRegName(MI->getOperand(1).getReg()); |
| LLVM_FALLTHROUGH; |
| case X86::VPSLLDQZ128mi: |
| case X86::VPSLLDQZ256mi: |
| case X86::VPSLLDQZmi: |
| DestName = getRegName(MI->getOperand(0).getReg()); |
| if (MI->getOperand(NumOperands - 1).isImm()) |
| DecodePSLLDQMask(getRegOperandNumElts(MI, 8, 0), |
| MI->getOperand(NumOperands - 1).getImm(), |
| ShuffleMask); |
| break; |
| |
| case X86::PSRLDQri: |
| case X86::VPSRLDQri: |
| case X86::VPSRLDQYri: |
| case X86::VPSRLDQZ128ri: |
| case X86::VPSRLDQZ256ri: |
| case X86::VPSRLDQZri: |
| Src1Name = getRegName(MI->getOperand(1).getReg()); |
| LLVM_FALLTHROUGH; |
| case X86::VPSRLDQZ128mi: |
| case X86::VPSRLDQZ256mi: |
| case X86::VPSRLDQZmi: |
| DestName = getRegName(MI->getOperand(0).getReg()); |
| if (MI->getOperand(NumOperands - 1).isImm()) |
| DecodePSRLDQMask(getRegOperandNumElts(MI, 8, 0), |
| MI->getOperand(NumOperands - 1).getImm(), |
| ShuffleMask); |
| break; |
| |
| CASE_SHUF(PALIGNR, rri) |
| Src1Name = getRegName(MI->getOperand(NumOperands - 2).getReg()); |
| RegForm = true; |
| LLVM_FALLTHROUGH; |
| |
| CASE_SHUF(PALIGNR, rmi) |
| Src2Name = getRegName(MI->getOperand(NumOperands-(RegForm?3:7)).getReg()); |
| DestName = getRegName(MI->getOperand(0).getReg()); |
| if (MI->getOperand(NumOperands - 1).isImm()) |
| DecodePALIGNRMask(getRegOperandNumElts(MI, 8, 0), |
| MI->getOperand(NumOperands - 1).getImm(), |
| ShuffleMask); |
| break; |
| |
| CASE_AVX512_INS_COMMON(ALIGNQ, Z, rri) |
| CASE_AVX512_INS_COMMON(ALIGNQ, Z256, rri) |
| CASE_AVX512_INS_COMMON(ALIGNQ, Z128, rri) |
| Src1Name = getRegName(MI->getOperand(NumOperands - 2).getReg()); |
| RegForm = true; |
| LLVM_FALLTHROUGH; |
| |
| CASE_AVX512_INS_COMMON(ALIGNQ, Z, rmi) |
| CASE_AVX512_INS_COMMON(ALIGNQ, Z256, rmi) |
| CASE_AVX512_INS_COMMON(ALIGNQ, Z128, rmi) |
| Src2Name = getRegName(MI->getOperand(NumOperands-(RegForm?3:7)).getReg()); |
| DestName = getRegName(MI->getOperand(0).getReg()); |
| if (MI->getOperand(NumOperands - 1).isImm()) |
| DecodeVALIGNMask(getRegOperandNumElts(MI, 64, 0), |
| MI->getOperand(NumOperands - 1).getImm(), |
| ShuffleMask); |
| break; |
| |
| CASE_AVX512_INS_COMMON(ALIGND, Z, rri) |
| CASE_AVX512_INS_COMMON(ALIGND, Z256, rri) |
| CASE_AVX512_INS_COMMON(ALIGND, Z128, rri) |
| Src1Name = getRegName(MI->getOperand(NumOperands - 2).getReg()); |
| RegForm = true; |
| LLVM_FALLTHROUGH; |
| |
| CASE_AVX512_INS_COMMON(ALIGND, Z, rmi) |
| CASE_AVX512_INS_COMMON(ALIGND, Z256, rmi) |
| CASE_AVX512_INS_COMMON(ALIGND, Z128, rmi) |
| Src2Name = getRegName(MI->getOperand(NumOperands-(RegForm?3:7)).getReg()); |
| DestName = getRegName(MI->getOperand(0).getReg()); |
| if (MI->getOperand(NumOperands - 1).isImm()) |
| DecodeVALIGNMask(getRegOperandNumElts(MI, 32, 0), |
| MI->getOperand(NumOperands - 1).getImm(), |
| ShuffleMask); |
| break; |
| |
| CASE_SHUF(PSHUFD, ri) |
| Src1Name = getRegName(MI->getOperand(NumOperands - 2).getReg()); |
| LLVM_FALLTHROUGH; |
| |
| CASE_SHUF(PSHUFD, mi) |
| DestName = getRegName(MI->getOperand(0).getReg()); |
| if (MI->getOperand(NumOperands - 1).isImm()) |
| DecodePSHUFMask(getRegOperandNumElts(MI, 32, 0), 32, |
| MI->getOperand(NumOperands - 1).getImm(), |
| ShuffleMask); |
| break; |
| |
| CASE_SHUF(PSHUFHW, ri) |
| Src1Name = getRegName(MI->getOperand(NumOperands - 2).getReg()); |
| LLVM_FALLTHROUGH; |
| |
| CASE_SHUF(PSHUFHW, mi) |
| DestName = getRegName(MI->getOperand(0).getReg()); |
| if (MI->getOperand(NumOperands - 1).isImm()) |
| DecodePSHUFHWMask(getRegOperandNumElts(MI, 16, 0), |
| MI->getOperand(NumOperands - 1).getImm(), |
| ShuffleMask); |
| break; |
| |
| CASE_SHUF(PSHUFLW, ri) |
| Src1Name = getRegName(MI->getOperand(NumOperands - 2).getReg()); |
| LLVM_FALLTHROUGH; |
| |
| CASE_SHUF(PSHUFLW, mi) |
| DestName = getRegName(MI->getOperand(0).getReg()); |
| if (MI->getOperand(NumOperands - 1).isImm()) |
| DecodePSHUFLWMask(getRegOperandNumElts(MI, 16, 0), |
| MI->getOperand(NumOperands - 1).getImm(), |
| ShuffleMask); |
| break; |
| |
| case X86::MMX_PSHUFWri: |
| Src1Name = getRegName(MI->getOperand(1).getReg()); |
| LLVM_FALLTHROUGH; |
| |
| case X86::MMX_PSHUFWmi: |
| DestName = getRegName(MI->getOperand(0).getReg()); |
| if (MI->getOperand(NumOperands - 1).isImm()) |
| DecodePSHUFMask(4, 16, MI->getOperand(NumOperands - 1).getImm(), |
| ShuffleMask); |
| break; |
| |
| case X86::PSWAPDrr: |
| Src1Name = getRegName(MI->getOperand(1).getReg()); |
| LLVM_FALLTHROUGH; |
| |
| case X86::PSWAPDrm: |
| DestName = getRegName(MI->getOperand(0).getReg()); |
| DecodePSWAPMask(2, ShuffleMask); |
| break; |
| |
| CASE_UNPCK(PUNPCKHBW, r) |
| case X86::MMX_PUNPCKHBWirr: |
| Src2Name = getRegName(MI->getOperand(NumOperands - 1).getReg()); |
| RegForm = true; |
| LLVM_FALLTHROUGH; |
| |
| CASE_UNPCK(PUNPCKHBW, m) |
| case X86::MMX_PUNPCKHBWirm: |
| Src1Name = getRegName(MI->getOperand(NumOperands-(RegForm?2:6)).getReg()); |
| DestName = getRegName(MI->getOperand(0).getReg()); |
| DecodeUNPCKHMask(getRegOperandNumElts(MI, 8, 0), 8, ShuffleMask); |
| break; |
| |
| CASE_UNPCK(PUNPCKHWD, r) |
| case X86::MMX_PUNPCKHWDirr: |
| Src2Name = getRegName(MI->getOperand(NumOperands - 1).getReg()); |
| RegForm = true; |
| LLVM_FALLTHROUGH; |
| |
| CASE_UNPCK(PUNPCKHWD, m) |
| case X86::MMX_PUNPCKHWDirm: |
| Src1Name = getRegName(MI->getOperand(NumOperands-(RegForm?2:6)).getReg()); |
| DestName = getRegName(MI->getOperand(0).getReg()); |
| DecodeUNPCKHMask(getRegOperandNumElts(MI, 16, 0), 16, ShuffleMask); |
| break; |
| |
| CASE_UNPCK(PUNPCKHDQ, r) |
| case X86::MMX_PUNPCKHDQirr: |
| Src2Name = getRegName(MI->getOperand(NumOperands - 1).getReg()); |
| RegForm = true; |
| LLVM_FALLTHROUGH; |
| |
| CASE_UNPCK(PUNPCKHDQ, m) |
| case X86::MMX_PUNPCKHDQirm: |
| Src1Name = getRegName(MI->getOperand(NumOperands-(RegForm?2:6)).getReg()); |
| DestName = getRegName(MI->getOperand(0).getReg()); |
| DecodeUNPCKHMask(getRegOperandNumElts(MI, 32, 0), 32, ShuffleMask); |
| break; |
| |
| CASE_UNPCK(PUNPCKHQDQ, r) |
| Src2Name = getRegName(MI->getOperand(NumOperands - 1).getReg()); |
| RegForm = true; |
| LLVM_FALLTHROUGH; |
| |
| CASE_UNPCK(PUNPCKHQDQ, m) |
| Src1Name = getRegName(MI->getOperand(NumOperands-(RegForm?2:6)).getReg()); |
| DestName = getRegName(MI->getOperand(0).getReg()); |
| DecodeUNPCKHMask(getRegOperandNumElts(MI, 64, 0), 64, ShuffleMask); |
| break; |
| |
| CASE_UNPCK(PUNPCKLBW, r) |
| case X86::MMX_PUNPCKLBWirr: |
| Src2Name = getRegName(MI->getOperand(NumOperands - 1).getReg()); |
| RegForm = true; |
| LLVM_FALLTHROUGH; |
| |
| CASE_UNPCK(PUNPCKLBW, m) |
| case X86::MMX_PUNPCKLBWirm: |
| Src1Name = getRegName(MI->getOperand(NumOperands-(RegForm?2:6)).getReg()); |
| DestName = getRegName(MI->getOperand(0).getReg()); |
| DecodeUNPCKLMask(getRegOperandNumElts(MI, 8, 0), 8, ShuffleMask); |
| break; |
| |
| CASE_UNPCK(PUNPCKLWD, r) |
| case X86::MMX_PUNPCKLWDirr: |
| Src2Name = getRegName(MI->getOperand(NumOperands - 1).getReg()); |
| RegForm = true; |
| LLVM_FALLTHROUGH; |
| |
| CASE_UNPCK(PUNPCKLWD, m) |
| case X86::MMX_PUNPCKLWDirm: |
| Src1Name = getRegName(MI->getOperand(NumOperands-(RegForm?2:6)).getReg()); |
| DestName = getRegName(MI->getOperand(0).getReg()); |
| DecodeUNPCKLMask(getRegOperandNumElts(MI, 16, 0), 16, ShuffleMask); |
| break; |
| |
| CASE_UNPCK(PUNPCKLDQ, r) |
| case X86::MMX_PUNPCKLDQirr: |
| Src2Name = getRegName(MI->getOperand(NumOperands - 1).getReg()); |
| RegForm = true; |
| LLVM_FALLTHROUGH; |
| |
| CASE_UNPCK(PUNPCKLDQ, m) |
| case X86::MMX_PUNPCKLDQirm: |
| Src1Name = getRegName(MI->getOperand(NumOperands-(RegForm?2:6)).getReg()); |
| DestName = getRegName(MI->getOperand(0).getReg()); |
| DecodeUNPCKLMask(getRegOperandNumElts(MI, 32, 0), 32, ShuffleMask); |
| break; |
| |
| CASE_UNPCK(PUNPCKLQDQ, r) |
| Src2Name = getRegName(MI->getOperand(NumOperands - 1).getReg()); |
| RegForm = true; |
| LLVM_FALLTHROUGH; |
| |
| CASE_UNPCK(PUNPCKLQDQ, m) |
| Src1Name = getRegName(MI->getOperand(NumOperands-(RegForm?2:6)).getReg()); |
| DestName = getRegName(MI->getOperand(0).getReg()); |
| DecodeUNPCKLMask(getRegOperandNumElts(MI, 64, 0), 64, ShuffleMask); |
| break; |
| |
| CASE_SHUF(SHUFPD, rri) |
| Src2Name = getRegName(MI->getOperand(NumOperands - 2).getReg()); |
| RegForm = true; |
| LLVM_FALLTHROUGH; |
| |
| CASE_SHUF(SHUFPD, rmi) |
| if (MI->getOperand(NumOperands - 1).isImm()) |
| DecodeSHUFPMask(getRegOperandNumElts(MI, 64, 0), 64, |
| MI->getOperand(NumOperands - 1).getImm(), ShuffleMask); |
| Src1Name = getRegName(MI->getOperand(NumOperands-(RegForm?3:7)).getReg()); |
| DestName = getRegName(MI->getOperand(0).getReg()); |
| break; |
| |
| CASE_SHUF(SHUFPS, rri) |
| Src2Name = getRegName(MI->getOperand(NumOperands - 2).getReg()); |
| RegForm = true; |
| LLVM_FALLTHROUGH; |
| |
| CASE_SHUF(SHUFPS, rmi) |
| if (MI->getOperand(NumOperands - 1).isImm()) |
| DecodeSHUFPMask(getRegOperandNumElts(MI, 32, 0), 32, |
| MI->getOperand(NumOperands - 1).getImm(), |
| ShuffleMask); |
| Src1Name = getRegName(MI->getOperand(NumOperands-(RegForm?3:7)).getReg()); |
| DestName = getRegName(MI->getOperand(0).getReg()); |
| break; |
| |
| CASE_VSHUF(64X2, r) |
| Src2Name = getRegName(MI->getOperand(NumOperands - 2).getReg()); |
| RegForm = true; |
| LLVM_FALLTHROUGH; |
| |
| CASE_VSHUF(64X2, m) |
| decodeVSHUF64x2FamilyMask(getRegOperandNumElts(MI, 64, 0), 64, |
| MI->getOperand(NumOperands - 1).getImm(), |
| ShuffleMask); |
| Src1Name = getRegName(MI->getOperand(NumOperands-(RegForm?3:7)).getReg()); |
| DestName = getRegName(MI->getOperand(0).getReg()); |
| break; |
| |
| CASE_VSHUF(32X4, r) |
| Src2Name = getRegName(MI->getOperand(NumOperands - 2).getReg()); |
| RegForm = true; |
| LLVM_FALLTHROUGH; |
| |
| CASE_VSHUF(32X4, m) |
| decodeVSHUF64x2FamilyMask(getRegOperandNumElts(MI, 32, 0), 32, |
| MI->getOperand(NumOperands - 1).getImm(), |
| ShuffleMask); |
| Src1Name = getRegName(MI->getOperand(NumOperands-(RegForm?3:7)).getReg()); |
| DestName = getRegName(MI->getOperand(0).getReg()); |
| break; |
| |
| CASE_UNPCK(UNPCKLPD, r) |
| Src2Name = getRegName(MI->getOperand(NumOperands - 1).getReg()); |
| RegForm = true; |
| LLVM_FALLTHROUGH; |
| |
| CASE_UNPCK(UNPCKLPD, m) |
| DecodeUNPCKLMask(getRegOperandNumElts(MI, 64, 0), 64, ShuffleMask); |
| Src1Name = getRegName(MI->getOperand(NumOperands-(RegForm?2:6)).getReg()); |
| DestName = getRegName(MI->getOperand(0).getReg()); |
| break; |
| |
| CASE_UNPCK(UNPCKLPS, r) |
| Src2Name = getRegName(MI->getOperand(NumOperands - 1).getReg()); |
| RegForm = true; |
| LLVM_FALLTHROUGH; |
| |
| CASE_UNPCK(UNPCKLPS, m) |
| DecodeUNPCKLMask(getRegOperandNumElts(MI, 32, 0), 32, ShuffleMask); |
| Src1Name = getRegName(MI->getOperand(NumOperands-(RegForm?2:6)).getReg()); |
| DestName = getRegName(MI->getOperand(0).getReg()); |
| break; |
| |
| CASE_UNPCK(UNPCKHPD, r) |
| Src2Name = getRegName(MI->getOperand(NumOperands - 1).getReg()); |
| RegForm = true; |
| LLVM_FALLTHROUGH; |
| |
| CASE_UNPCK(UNPCKHPD, m) |
| DecodeUNPCKHMask(getRegOperandNumElts(MI, 64, 0), 64, ShuffleMask); |
| Src1Name = getRegName(MI->getOperand(NumOperands-(RegForm?2:6)).getReg()); |
| DestName = getRegName(MI->getOperand(0).getReg()); |
| break; |
| |
| CASE_UNPCK(UNPCKHPS, r) |
| Src2Name = getRegName(MI->getOperand(NumOperands - 1).getReg()); |
| RegForm = true; |
| LLVM_FALLTHROUGH; |
| |
| CASE_UNPCK(UNPCKHPS, m) |
| DecodeUNPCKHMask(getRegOperandNumElts(MI, 32, 0), 32, ShuffleMask); |
| Src1Name = getRegName(MI->getOperand(NumOperands-(RegForm?2:6)).getReg()); |
| DestName = getRegName(MI->getOperand(0).getReg()); |
| break; |
| |
| CASE_VPERMILPI(PERMILPS, r) |
| Src1Name = getRegName(MI->getOperand(NumOperands - 2).getReg()); |
| LLVM_FALLTHROUGH; |
| |
| CASE_VPERMILPI(PERMILPS, m) |
| if (MI->getOperand(NumOperands - 1).isImm()) |
| DecodePSHUFMask(getRegOperandNumElts(MI, 32, 0), 32, |
| MI->getOperand(NumOperands - 1).getImm(), |
| ShuffleMask); |
| DestName = getRegName(MI->getOperand(0).getReg()); |
| break; |
| |
| CASE_VPERMILPI(PERMILPD, r) |
| Src1Name = getRegName(MI->getOperand(NumOperands - 2).getReg()); |
| LLVM_FALLTHROUGH; |
| |
| CASE_VPERMILPI(PERMILPD, m) |
| if (MI->getOperand(NumOperands - 1).isImm()) |
| DecodePSHUFMask(getRegOperandNumElts(MI, 64, 0), 64, |
| MI->getOperand(NumOperands - 1).getImm(), |
| ShuffleMask); |
| DestName = getRegName(MI->getOperand(0).getReg()); |
| break; |
| |
| case X86::VPERM2F128rr: |
| case X86::VPERM2I128rr: |
| Src2Name = getRegName(MI->getOperand(2).getReg()); |
| LLVM_FALLTHROUGH; |
| |
| case X86::VPERM2F128rm: |
| case X86::VPERM2I128rm: |
| // For instruction comments purpose, assume the 256-bit vector is v4i64. |
| if (MI->getOperand(NumOperands - 1).isImm()) |
| DecodeVPERM2X128Mask(4, MI->getOperand(NumOperands - 1).getImm(), |
| ShuffleMask); |
| Src1Name = getRegName(MI->getOperand(1).getReg()); |
| DestName = getRegName(MI->getOperand(0).getReg()); |
| break; |
| |
| CASE_VPERM(PERMPD, r) |
| Src1Name = getRegName(MI->getOperand(NumOperands - 2).getReg()); |
| LLVM_FALLTHROUGH; |
| |
| CASE_VPERM(PERMPD, m) |
| if (MI->getOperand(NumOperands - 1).isImm()) |
| DecodeVPERMMask(getRegOperandNumElts(MI, 64, 0), |
| MI->getOperand(NumOperands - 1).getImm(), |
| ShuffleMask); |
| DestName = getRegName(MI->getOperand(0).getReg()); |
| break; |
| |
| CASE_VPERM(PERMQ, r) |
| Src1Name = getRegName(MI->getOperand(NumOperands - 2).getReg()); |
| LLVM_FALLTHROUGH; |
| |
| CASE_VPERM(PERMQ, m) |
| if (MI->getOperand(NumOperands - 1).isImm()) |
| DecodeVPERMMask(getRegOperandNumElts(MI, 64, 0), |
| MI->getOperand(NumOperands - 1).getImm(), |
| ShuffleMask); |
| DestName = getRegName(MI->getOperand(0).getReg()); |
| break; |
| |
| case X86::MOVSDrr: |
| case X86::VMOVSDrr: |
| case X86::VMOVSDZrr: |
| Src2Name = getRegName(MI->getOperand(2).getReg()); |
| Src1Name = getRegName(MI->getOperand(1).getReg()); |
| LLVM_FALLTHROUGH; |
| |
| case X86::MOVSDrm_alt: |
| case X86::MOVSDrm: |
| case X86::VMOVSDrm_alt: |
| case X86::VMOVSDrm: |
| case X86::VMOVSDZrm: |
| case X86::VMOVSDZrm_alt: |
| DecodeScalarMoveMask(2, nullptr == Src2Name, ShuffleMask); |
| DestName = getRegName(MI->getOperand(0).getReg()); |
| break; |
| |
| case X86::MOVSSrr: |
| case X86::VMOVSSrr: |
| case X86::VMOVSSZrr: |
| Src2Name = getRegName(MI->getOperand(2).getReg()); |
| Src1Name = getRegName(MI->getOperand(1).getReg()); |
| LLVM_FALLTHROUGH; |
| |
| case X86::MOVSSrm: |
| case X86::MOVSSrm_alt: |
| case X86::VMOVSSrm: |
| case X86::VMOVSSrm_alt: |
| case X86::VMOVSSZrm: |
| case X86::VMOVSSZrm_alt: |
| DecodeScalarMoveMask(4, nullptr == Src2Name, ShuffleMask); |
| DestName = getRegName(MI->getOperand(0).getReg()); |
| break; |
| |
| case X86::MOVPQI2QIrr: |
| case X86::MOVZPQILo2PQIrr: |
| case X86::VMOVPQI2QIrr: |
| case X86::VMOVPQI2QIZrr: |
| case X86::VMOVZPQILo2PQIrr: |
| case X86::VMOVZPQILo2PQIZrr: |
| Src1Name = getRegName(MI->getOperand(1).getReg()); |
| LLVM_FALLTHROUGH; |
| |
| case X86::MOVQI2PQIrm: |
| case X86::VMOVQI2PQIrm: |
| case X86::VMOVQI2PQIZrm: |
| DecodeZeroMoveLowMask(2, ShuffleMask); |
| DestName = getRegName(MI->getOperand(0).getReg()); |
| break; |
| |
| case X86::MOVDI2PDIrm: |
| case X86::VMOVDI2PDIrm: |
| case X86::VMOVDI2PDIZrm: |
| DecodeZeroMoveLowMask(4, ShuffleMask); |
| DestName = getRegName(MI->getOperand(0).getReg()); |
| break; |
| |
| case X86::EXTRQI: |
| if (MI->getOperand(2).isImm() && |
| MI->getOperand(3).isImm()) |
| DecodeEXTRQIMask(16, 8, MI->getOperand(2).getImm(), |
| MI->getOperand(3).getImm(), ShuffleMask); |
| |
| DestName = getRegName(MI->getOperand(0).getReg()); |
| Src1Name = getRegName(MI->getOperand(1).getReg()); |
| break; |
| |
| case X86::INSERTQI: |
| if (MI->getOperand(3).isImm() && |
| MI->getOperand(4).isImm()) |
| DecodeINSERTQIMask(16, 8, MI->getOperand(3).getImm(), |
| MI->getOperand(4).getImm(), ShuffleMask); |
| |
| DestName = getRegName(MI->getOperand(0).getReg()); |
| Src1Name = getRegName(MI->getOperand(1).getReg()); |
| Src2Name = getRegName(MI->getOperand(2).getReg()); |
| break; |
| |
| case X86::VBROADCASTF128: |
| case X86::VBROADCASTI128: |
| CASE_AVX512_INS_COMMON(BROADCASTF64X2, Z128, rm) |
| CASE_AVX512_INS_COMMON(BROADCASTI64X2, Z128, rm) |
| DecodeSubVectorBroadcast(4, 2, ShuffleMask); |
| DestName = getRegName(MI->getOperand(0).getReg()); |
| break; |
| CASE_AVX512_INS_COMMON(BROADCASTF64X2, , rm) |
| CASE_AVX512_INS_COMMON(BROADCASTI64X2, , rm) |
| DecodeSubVectorBroadcast(8, 2, ShuffleMask); |
| DestName = getRegName(MI->getOperand(0).getReg()); |
| break; |
| CASE_AVX512_INS_COMMON(BROADCASTF64X4, , rm) |
| CASE_AVX512_INS_COMMON(BROADCASTI64X4, , rm) |
| DecodeSubVectorBroadcast(8, 4, ShuffleMask); |
| DestName = getRegName(MI->getOperand(0).getReg()); |
| break; |
| CASE_AVX512_INS_COMMON(BROADCASTF32X4, Z256, rm) |
| CASE_AVX512_INS_COMMON(BROADCASTI32X4, Z256, rm) |
| DecodeSubVectorBroadcast(8, 4, ShuffleMask); |
| DestName = getRegName(MI->getOperand(0).getReg()); |
| break; |
| CASE_AVX512_INS_COMMON(BROADCASTF32X4, , rm) |
| CASE_AVX512_INS_COMMON(BROADCASTI32X4, , rm) |
| DecodeSubVectorBroadcast(16, 4, ShuffleMask); |
| DestName = getRegName(MI->getOperand(0).getReg()); |
| break; |
| CASE_AVX512_INS_COMMON(BROADCASTF32X8, , rm) |
| CASE_AVX512_INS_COMMON(BROADCASTI32X8, , rm) |
| DecodeSubVectorBroadcast(16, 8, ShuffleMask); |
| DestName = getRegName(MI->getOperand(0).getReg()); |
| break; |
| CASE_AVX512_INS_COMMON(BROADCASTI32X2, Z128, rr) |
| Src1Name = getRegName(MI->getOperand(NumOperands - 1).getReg()); |
| LLVM_FALLTHROUGH; |
| CASE_AVX512_INS_COMMON(BROADCASTI32X2, Z128, rm) |
| DecodeSubVectorBroadcast(4, 2, ShuffleMask); |
| DestName = getRegName(MI->getOperand(0).getReg()); |
| break; |
| CASE_AVX512_INS_COMMON(BROADCASTF32X2, Z256, rr) |
| CASE_AVX512_INS_COMMON(BROADCASTI32X2, Z256, rr) |
| Src1Name = getRegName(MI->getOperand(NumOperands - 1).getReg()); |
| LLVM_FALLTHROUGH; |
| CASE_AVX512_INS_COMMON(BROADCASTF32X2, Z256, rm) |
| CASE_AVX512_INS_COMMON(BROADCASTI32X2, Z256, rm) |
| DecodeSubVectorBroadcast(8, 2, ShuffleMask); |
| DestName = getRegName(MI->getOperand(0).getReg()); |
| break; |
| CASE_AVX512_INS_COMMON(BROADCASTF32X2, Z, rr) |
| CASE_AVX512_INS_COMMON(BROADCASTI32X2, Z, rr) |
| Src1Name = getRegName(MI->getOperand(NumOperands - 1).getReg()); |
| LLVM_FALLTHROUGH; |
| CASE_AVX512_INS_COMMON(BROADCASTF32X2, Z, rm) |
| CASE_AVX512_INS_COMMON(BROADCASTI32X2, Z, rm) |
| DecodeSubVectorBroadcast(16, 2, ShuffleMask); |
| DestName = getRegName(MI->getOperand(0).getReg()); |
| break; |
| |
| CASE_PMOVZX(PMOVZXBW, r) |
| Src1Name = getRegName(MI->getOperand(NumOperands - 1).getReg()); |
| LLVM_FALLTHROUGH; |
| CASE_PMOVZX(PMOVZXBW, m) |
| DecodeZeroExtendMask(8, 16, getRegOperandNumElts(MI, 16, 0), false, |
| ShuffleMask); |
| DestName = getRegName(MI->getOperand(0).getReg()); |
| break; |
| |
| CASE_PMOVZX(PMOVZXBD, r) |
| Src1Name = getRegName(MI->getOperand(NumOperands - 1).getReg()); |
| LLVM_FALLTHROUGH; |
| CASE_PMOVZX(PMOVZXBD, m) |
| DecodeZeroExtendMask(8, 32, getRegOperandNumElts(MI, 32, 0), false, |
| ShuffleMask); |
| DestName = getRegName(MI->getOperand(0).getReg()); |
| break; |
| |
| CASE_PMOVZX(PMOVZXBQ, r) |
| Src1Name = getRegName(MI->getOperand(NumOperands - 1).getReg()); |
| LLVM_FALLTHROUGH; |
| CASE_PMOVZX(PMOVZXBQ, m) |
| DecodeZeroExtendMask(8, 64, getRegOperandNumElts(MI, 64, 0), false, |
| ShuffleMask); |
| DestName = getRegName(MI->getOperand(0).getReg()); |
| break; |
| |
| CASE_PMOVZX(PMOVZXWD, r) |
| Src1Name = getRegName(MI->getOperand(NumOperands - 1).getReg()); |
| LLVM_FALLTHROUGH; |
| CASE_PMOVZX(PMOVZXWD, m) |
| DecodeZeroExtendMask(16, 32, getRegOperandNumElts(MI, 32, 0), false, |
| ShuffleMask); |
| DestName = getRegName(MI->getOperand(0).getReg()); |
| break; |
| |
| CASE_PMOVZX(PMOVZXWQ, r) |
| Src1Name = getRegName(MI->getOperand(NumOperands - 1).getReg()); |
| LLVM_FALLTHROUGH; |
| CASE_PMOVZX(PMOVZXWQ, m) |
| DecodeZeroExtendMask(16, 64, getRegOperandNumElts(MI, 64, 0), false, |
| ShuffleMask); |
| DestName = getRegName(MI->getOperand(0).getReg()); |
| break; |
| |
| CASE_PMOVZX(PMOVZXDQ, r) |
| Src1Name = getRegName(MI->getOperand(NumOperands - 1).getReg()); |
| LLVM_FALLTHROUGH; |
| CASE_PMOVZX(PMOVZXDQ, m) |
| DecodeZeroExtendMask(32, 64, getRegOperandNumElts(MI, 64, 0), false, |
| ShuffleMask); |
| DestName = getRegName(MI->getOperand(0).getReg()); |
| break; |
| } |
| |
| // The only comments we decode are shuffles, so give up if we were unable to |
| // decode a shuffle mask. |
| if (ShuffleMask.empty()) |
| return false; |
| |
| if (!DestName) DestName = Src1Name; |
| if (DestName) { |
| OS << DestName; |
| printMasking(OS, MI, MCII); |
| } else |
| OS << "mem"; |
| |
| OS << " = "; |
| |
| // If the two sources are the same, canonicalize the input elements to be |
| // from the first src so that we get larger element spans. |
| if (Src1Name == Src2Name) { |
| for (unsigned i = 0, e = ShuffleMask.size(); i != e; ++i) { |
| if ((int)ShuffleMask[i] >= 0 && // Not sentinel. |
| ShuffleMask[i] >= (int)e) // From second mask. |
| ShuffleMask[i] -= e; |
| } |
| } |
| |
| // The shuffle mask specifies which elements of the src1/src2 fill in the |
| // destination, with a few sentinel values. Loop through and print them |
| // out. |
| for (unsigned i = 0, e = ShuffleMask.size(); i != e; ++i) { |
| if (i != 0) |
| OS << ','; |
| if (ShuffleMask[i] == SM_SentinelZero) { |
| OS << "zero"; |
| continue; |
| } |
| |
| // Otherwise, it must come from src1 or src2. Print the span of elements |
| // that comes from this src. |
| bool isSrc1 = ShuffleMask[i] < (int)ShuffleMask.size(); |
| const char *SrcName = isSrc1 ? Src1Name : Src2Name; |
| OS << (SrcName ? SrcName : "mem") << '['; |
| bool IsFirst = true; |
| while (i != e && (int)ShuffleMask[i] != SM_SentinelZero && |
| (ShuffleMask[i] < (int)ShuffleMask.size()) == isSrc1) { |
| if (!IsFirst) |
| OS << ','; |
| else |
| IsFirst = false; |
| if (ShuffleMask[i] == SM_SentinelUndef) |
| OS << "u"; |
| else |
| OS << ShuffleMask[i] % ShuffleMask.size(); |
| ++i; |
| } |
| OS << ']'; |
| --i; // For loop increments element #. |
| } |
| OS << '\n'; |
| |
| // We successfully added a comment to this instruction. |
| return true; |
| } |
