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| author | Dan Gohman <gohman@apple.com> | 2009-04-17 00:43:09 +0000 |
|---|---|---|
| committer | Dan Gohman <gohman@apple.com> | 2009-04-17 00:43:09 +0000 |
| commit | 74835ce1cbacbef61ec5490e6a91b3670b864c71 (patch) | |
| tree | 0d2ffa5cd82fdabce567b3410fbe97a90f88d8df | |
| parent | 71517c47e6dacc8944e93665d750c60f148e7580 (diff) | |
| download | bcm5719-llvm-74835ce1cbacbef61ec5490e6a91b3670b864c71.tar.gz bcm5719-llvm-74835ce1cbacbef61ec5490e6a91b3670b864c71.zip | |
Don't use MOV8rr_NOREX on x86-32. It doesn't actually hurt anything at
present, but it's inconsistent.
llvm-svn: 69335
| -rw-r--r-- | llvm/lib/Target/X86/X86InstrInfo.cpp | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/llvm/lib/Target/X86/X86InstrInfo.cpp b/llvm/lib/Target/X86/X86InstrInfo.cpp index e123ae7e24a..c0243652bb7 100644 --- a/llvm/lib/Target/X86/X86InstrInfo.cpp +++ b/llvm/lib/Target/X86/X86InstrInfo.cpp @@ -1664,9 +1664,10 @@ bool X86InstrInfo::copyRegToReg(MachineBasicBlock &MBB, } else if (DestRC == &X86::GR16RegClass) { Opc = X86::MOV16rr; } else if (DestRC == &X86::GR8RegClass) { - // Copying two or from a physical H register requires a NOREX move. - // Otherwise use a normal move. - if (isHReg(DestReg) || isHReg(SrcReg)) + // Copying two or from a physical H register on x86-64 requires a NOREX + // move. Otherwise use a normal move. + if ((isHReg(DestReg) || isHReg(SrcReg)) && + TM.getSubtarget<X86Subtarget>().is64Bit()) Opc = X86::MOV8rr_NOREX; else Opc = X86::MOV8rr; |
