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| author | Benjamin Kramer <benny.kra@googlemail.com> | 2014-10-05 16:14:29 +0000 |
|---|---|---|
| committer | Benjamin Kramer <benny.kra@googlemail.com> | 2014-10-05 16:14:29 +0000 |
| commit | 77b0e13aba6c5b72137afbac9a95127260f708ea (patch) | |
| tree | 4ec08c94c719199495ce4cff406b367dc48ee440 /llvm/lib/Target/X86/X86InstrInfo.cpp | |
| parent | 44bf0637d53db6a75fc603791e50e7d2646b36ff (diff) | |
| download | bcm5719-llvm-77b0e13aba6c5b72137afbac9a95127260f708ea.tar.gz bcm5719-llvm-77b0e13aba6c5b72137afbac9a95127260f708ea.zip | |
X86: Don't drop half of the mask when converting 2-address shufps into 3-address pshufd.
It's debatable whether this transform is useful at all, but for now make sure
we don't generate invalid asm.
llvm-svn: 219084
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 08306419f5a..dc97185ed95 100644 --- a/llvm/lib/Target/X86/X86InstrInfo.cpp +++ b/llvm/lib/Target/X86/X86InstrInfo.cpp @@ -2146,7 +2146,7 @@ X86InstrInfo::convertToThreeAddress(MachineFunction::iterator &MFI, unsigned B = MI->getOperand(1).getReg(); unsigned C = MI->getOperand(2).getReg(); if (B != C) return nullptr; - unsigned M = MI->getOperand(3).getImm(); + int64_t M = MI->getOperand(3).getImm(); NewMI = BuildMI(MF, MI->getDebugLoc(), get(X86::PSHUFDri)) .addOperand(Dest).addOperand(Src).addImm(M); break; |
