diff options
Diffstat (limited to 'llvm/lib/Target')
| -rw-r--r-- | llvm/lib/Target/X86/X86InstrInfo.cpp | 15 | ||||
| -rw-r--r-- | llvm/lib/Target/X86/X86InstrSSE.td | 2 |
2 files changed, 17 insertions, 0 deletions
diff --git a/llvm/lib/Target/X86/X86InstrInfo.cpp b/llvm/lib/Target/X86/X86InstrInfo.cpp index 263b8f13f72..9cfe2047b20 100644 --- a/llvm/lib/Target/X86/X86InstrInfo.cpp +++ b/llvm/lib/Target/X86/X86InstrInfo.cpp @@ -2686,6 +2686,21 @@ X86InstrInfo::commuteInstruction(MachineInstr *MI, bool NewMI) const { MI->getOperand(3).setImm(Mask ^ Imm); return TargetInstrInfo::commuteInstruction(MI, NewMI); } + case X86::PCLMULQDQrr: + case X86::VPCLMULQDQrr:{ + // SRC1 64bits = Imm[0] ? SRC1[127:64] : SRC1[63:0] + // SRC2 64bits = Imm[4] ? SRC2[127:64] : SRC2[63:0] + unsigned Imm = MI->getOperand(3).getImm(); + unsigned Src1Hi = Imm & 0x01; + unsigned Src2Hi = Imm & 0x10; + if (NewMI) { + MachineFunction &MF = *MI->getParent()->getParent(); + MI = MF.CloneMachineInstr(MI); + NewMI = false; + } + MI->getOperand(3).setImm((Src1Hi << 4) | (Src2Hi >> 4)); + return TargetInstrInfo::commuteInstruction(MI, NewMI); + } case X86::CMOVB16rr: case X86::CMOVB32rr: case X86::CMOVB64rr: case X86::CMOVAE16rr: case X86::CMOVAE32rr: case X86::CMOVAE64rr: case X86::CMOVE16rr: case X86::CMOVE32rr: case X86::CMOVE64rr: diff --git a/llvm/lib/Target/X86/X86InstrSSE.td b/llvm/lib/Target/X86/X86InstrSSE.td index a1215f977cd..f58a0037f60 100644 --- a/llvm/lib/Target/X86/X86InstrSSE.td +++ b/llvm/lib/Target/X86/X86InstrSSE.td @@ -7941,6 +7941,7 @@ def AESKEYGENASSIST128rm : AESAI<0xDF, MRMSrcMem, (outs VR128:$dst), //===----------------------------------------------------------------------===// // AVX carry-less Multiplication instructions +let isCommutable = 1 in def VPCLMULQDQrr : AVXPCLMULIi8<0x44, MRMSrcReg, (outs VR128:$dst), (ins VR128:$src1, VR128:$src2, u8imm:$src3), "vpclmulqdq\t{$src3, $src2, $src1, $dst|$dst, $src1, $src2, $src3}", @@ -7957,6 +7958,7 @@ def VPCLMULQDQrm : AVXPCLMULIi8<0x44, MRMSrcMem, (outs VR128:$dst), // Carry-less Multiplication instructions let Constraints = "$src1 = $dst" in { +let isCommutable = 1 in def PCLMULQDQrr : PCLMULIi8<0x44, MRMSrcReg, (outs VR128:$dst), (ins VR128:$src1, VR128:$src2, u8imm:$src3), "pclmulqdq\t{$src3, $src2, $dst|$dst, $src2, $src3}", |
