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| author | Evan Cheng <evan.cheng@apple.com> | 2006-07-25 20:25:40 +0000 |
|---|---|---|
| committer | Evan Cheng <evan.cheng@apple.com> | 2006-07-25 20:25:40 +0000 |
| commit | 55371739dec0ade6fcc77de228fb3e4d098845f7 (patch) | |
| tree | 51d1b7bbca096a1a5008c55f1f58d55647df8db3 /lib | |
| parent | fac00a93a98d43ac0d4ca514aa5a720debbd6c8b (diff) | |
| download | external_llvm-55371739dec0ade6fcc77de228fb3e4d098845f7.zip external_llvm-55371739dec0ade6fcc77de228fb3e4d098845f7.tar.gz external_llvm-55371739dec0ade6fcc77de228fb3e4d098845f7.tar.bz2 | |
Can't commute shufps. The high / low parts elements come from different vectors.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@29275 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib')
| -rw-r--r-- | lib/Target/X86/X86InstrInfo.cpp | 18 | ||||
| -rw-r--r-- | lib/Target/X86/X86InstrSSE.td | 3 |
2 files changed, 1 insertions, 20 deletions
diff --git a/lib/Target/X86/X86InstrInfo.cpp b/lib/Target/X86/X86InstrInfo.cpp index c566b48..47388ea 100644 --- a/lib/Target/X86/X86InstrInfo.cpp +++ b/lib/Target/X86/X86InstrInfo.cpp @@ -207,24 +207,6 @@ MachineInstr *X86InstrInfo::convertToThreeAddress(MachineInstr *MI) const { /// MachineInstr *X86InstrInfo::commuteInstruction(MachineInstr *MI) const { switch (MI->getOpcode()) { - case X86::SHUFPSrri: { // A = SHUFPSrri B,C, M -> A = SHUFPSrri C,B, rotl(M,4) - unsigned A = MI->getOperand(0).getReg(); - unsigned B = MI->getOperand(1).getReg(); - unsigned C = MI->getOperand(2).getReg(); - unsigned M = MI->getOperand(3).getImmedValue(); - if (B == C) return 0; - return BuildMI(X86::SHUFPSrri, 3, A).addReg(C).addReg(B). - addImm(((M & 0xF) << 4) | ((M & 0xF0) >> 4)); - } - case X86::SHUFPDrri: { // A = SHUFPDrri B,C, M -> A = SHUFPDrri C,B, rotl(M,1) - unsigned A = MI->getOperand(0).getReg(); - unsigned B = MI->getOperand(1).getReg(); - unsigned C = MI->getOperand(2).getReg(); - unsigned M = MI->getOperand(3).getImmedValue(); - if (B == C) return 0; - return BuildMI(X86::SHUFPDrri, 3, A).addReg(C).addReg(B). - addImm(((M & 0x1) << 1) | ((M & 0x2) >> 1)); - } case X86::SHRD16rri8: // A = SHRD16rri8 B, C, I -> A = SHLD16rri8 C, B, (16-I) case X86::SHLD16rri8: // A = SHLD16rri8 B, C, I -> A = SHRD16rri8 C, B, (16-I) case X86::SHRD32rri8: // A = SHRD32rri8 B, C, I -> A = SHLD32rri8 C, B, (32-I) diff --git a/lib/Target/X86/X86InstrSSE.td b/lib/Target/X86/X86InstrSSE.td index 81153d4..b6b0dda 100644 --- a/lib/Target/X86/X86InstrSSE.td +++ b/lib/Target/X86/X86InstrSSE.td @@ -1223,7 +1223,7 @@ def CMPPDrmi : PDIi8<0xC2, MRMSrcMem, // Shuffle and unpack instructions let isTwoAddress = 1 in { -let isCommutable = 1, isConvertibleToThreeAddress = 1 in // Convert to pshufd +let isConvertibleToThreeAddress = 1 in // Convert to pshufd def SHUFPSrri : PSIi8<0xC6, MRMSrcReg, (ops VR128:$dst, VR128:$src1, VR128:$src2, i32i8imm:$src3), "shufps {$src3, $src2, $dst|$dst, $src2, $src3}", @@ -1236,7 +1236,6 @@ def SHUFPSrmi : PSIi8<0xC6, MRMSrcMem, [(set VR128:$dst, (v4f32 (vector_shuffle VR128:$src1, (load addr:$src2), SHUFP_shuffle_mask:$src3)))]>; -let isCommutable = 1 in def SHUFPDrri : PDIi8<0xC6, MRMSrcReg, (ops VR128:$dst, VR128:$src1, VR128:$src2, i8imm:$src3), "shufpd {$src3, $src2, $dst|$dst, $src2, $src3}", |