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| author | Evan Cheng <evan.cheng@apple.com> | 2006-05-30 22:13:36 +0000 |
|---|---|---|
| committer | Evan Cheng <evan.cheng@apple.com> | 2006-05-30 22:13:36 +0000 |
| commit | f21045a5cd657446e03c2d59c9f48e1eb322ae6c (patch) | |
| tree | a521e3cd280cf8a2b07bfd47ef6ef5fa85cbf635 /llvm/lib/Target/X86/X86InstrInfo.cpp | |
| parent | c8c172eaaef3561248d0aba1ade5d74ef6637152 (diff) | |
| download | bcm5719-llvm-f21045a5cd657446e03c2d59c9f48e1eb322ae6c.tar.gz bcm5719-llvm-f21045a5cd657446e03c2d59c9f48e1eb322ae6c.zip | |
Somehow I lost a condition when I was shuffling some code around. Anyway,
only transform a shufps to pshufd when the first two operands are the same.
llvm-svn: 28575
Diffstat (limited to 'llvm/lib/Target/X86/X86InstrInfo.cpp')
| -rw-r--r-- | llvm/lib/Target/X86/X86InstrInfo.cpp | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/llvm/lib/Target/X86/X86InstrInfo.cpp b/llvm/lib/Target/X86/X86InstrInfo.cpp index 71504f94d02..47388eae483 100644 --- a/llvm/lib/Target/X86/X86InstrInfo.cpp +++ b/llvm/lib/Target/X86/X86InstrInfo.cpp @@ -125,11 +125,11 @@ MachineInstr *X86InstrInfo::convertToThreeAddress(MachineInstr *MI) const { case X86::SHUFPSrri: { assert(MI->getNumOperands() == 4 && "Unknown shufps instruction!"); const X86Subtarget *Subtarget = &TM.getSubtarget<X86Subtarget>(); - if (!Subtarget->hasSSE2()) return 0; 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 (!Subtarget->hasSSE2() || B != C) return 0; return BuildMI(X86::PSHUFDri, 2, A).addReg(B).addImm(M); } } |
