diff options
Diffstat (limited to 'llvm/lib')
| -rw-r--r-- | llvm/lib/Target/X86/X86InstrInfo.cpp | 44 | ||||
| -rw-r--r-- | llvm/lib/Target/X86/X86InstrSSE.td | 1 |
2 files changed, 45 insertions, 0 deletions
diff --git a/llvm/lib/Target/X86/X86InstrInfo.cpp b/llvm/lib/Target/X86/X86InstrInfo.cpp index 9cfe2047b20..60b0cb8f96b 100644 --- a/llvm/lib/Target/X86/X86InstrInfo.cpp +++ b/llvm/lib/Target/X86/X86InstrInfo.cpp @@ -2701,6 +2701,30 @@ X86InstrInfo::commuteInstruction(MachineInstr *MI, bool NewMI) const { MI->getOperand(3).setImm((Src1Hi << 4) | (Src2Hi >> 4)); return TargetInstrInfo::commuteInstruction(MI, NewMI); } + case X86::CMPPDrri: + case X86::CMPPSrri: + case X86::VCMPPDrri: + case X86::VCMPPSrri: + case X86::VCMPPDYrri: + case X86::VCMPPSYrri: { + // Float comparison can be safely commuted for + // Ordered/Unordered/Equal/NotEqual tests + unsigned Imm = MI->getOperand(3).getImm() & 0x7; + switch (Imm) { + case 0x00: // EQUAL + case 0x03: // UNORDERED + case 0x04: // NOT EQUAL + case 0x07: // ORDERED + if (NewMI) { + MachineFunction &MF = *MI->getParent()->getParent(); + MI = MF.CloneMachineInstr(MI); + NewMI = false; + } + return TargetInstrInfo::commuteInstruction(MI, NewMI); + default: + return nullptr; + } + } 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: @@ -2799,6 +2823,26 @@ bool X86InstrInfo::findCommutedOpIndices(MachineInstr *MI, unsigned &SrcOpIdx1, SrcOpIdx1 = 1; SrcOpIdx2 = 2; return true; + case X86::CMPPDrri: + case X86::CMPPSrri: + case X86::VCMPPDrri: + case X86::VCMPPSrri: + case X86::VCMPPDYrri: + case X86::VCMPPSYrri: { + // Float comparison can be safely commuted for + // Ordered/Unordered/Equal/NotEqual tests + unsigned Imm = MI->getOperand(3).getImm() & 0x7; + switch (Imm) { + case 0x00: // EQUAL + case 0x03: // UNORDERED + case 0x04: // NOT EQUAL + case 0x07: // ORDERED + SrcOpIdx1 = 1; + SrcOpIdx2 = 2; + return true; + } + return false; + } case X86::VFMADDPDr231r: case X86::VFMADDPSr231r: case X86::VFMADDSDr231r: diff --git a/llvm/lib/Target/X86/X86InstrSSE.td b/llvm/lib/Target/X86/X86InstrSSE.td index f58a0037f60..0ab53f3183e 100644 --- a/llvm/lib/Target/X86/X86InstrSSE.td +++ b/llvm/lib/Target/X86/X86InstrSSE.td @@ -2488,6 +2488,7 @@ multiclass sse12_cmp_packed<RegisterClass RC, X86MemOperand x86memop, Operand CC, Intrinsic Int, string asm, string asm_alt, Domain d, ImmLeaf immLeaf, OpndItins itins = SSE_ALU_F32P> { + let isCommutable = 1 in def rri : PIi8<0xC2, MRMSrcReg, (outs RC:$dst), (ins RC:$src1, RC:$src2, CC:$cc), asm, [(set RC:$dst, (Int RC:$src1, RC:$src2, immLeaf:$cc))], |
