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| author | Craig Topper <craig.topper@intel.com> | 2018-01-09 07:09:34 +0000 |
|---|---|---|
| committer | Craig Topper <craig.topper@intel.com> | 2018-01-09 07:09:34 +0000 |
| commit | def1c30c668e098e98f04e2d6f8ed84ed1b0b564 (patch) | |
| tree | 9c061127864b9c5699b7aaa64c218f2b17846ea9 /llvm/lib/Target/X86 | |
| parent | 6a7a4c6a55faef2da7e5f82bdf4c737095114564 (diff) | |
| download | bcm5719-llvm-def1c30c668e098e98f04e2d6f8ed84ed1b0b564.tar.gz bcm5719-llvm-def1c30c668e098e98f04e2d6f8ed84ed1b0b564.zip | |
[X86] Allow more cmpps/pd immediate encodings to be commuted during isel.
The code that checks the immediate wasn't masking to the lower 3-bits like the code in X86InstrInfo.cpp that's used by the peephole pass does.
llvm-svn: 322060
Diffstat (limited to 'llvm/lib/Target/X86')
| -rw-r--r-- | llvm/lib/Target/X86/X86InstrSSE.td | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/llvm/lib/Target/X86/X86InstrSSE.td b/llvm/lib/Target/X86/X86InstrSSE.td index 189fb46612e..30fca8ea1af 100644 --- a/llvm/lib/Target/X86/X86InstrSSE.td +++ b/llvm/lib/Target/X86/X86InstrSSE.td @@ -2398,8 +2398,8 @@ let Constraints = "$src1 = $dst" in { } def CommutableCMPCC : PatLeaf<(imm), [{ - return (N->getZExtValue() == 0x00 || N->getZExtValue() == 0x03 || - N->getZExtValue() == 0x04 || N->getZExtValue() == 0x07); + uint64_t Imm = N->getZExtValue() & 0x7; + return (Imm == 0x00 || Imm == 0x03 || Imm == 0x04 || Imm == 0x07); }]>; // Patterns to select compares with loads in first operand. |
