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| author | Manman Ren <mren@apple.com> | 2012-06-08 18:58:26 +0000 |
|---|---|---|
| committer | Manman Ren <mren@apple.com> | 2012-06-08 18:58:26 +0000 |
| commit | 45d53b866e63dd4899c2ea691e3539da8dbb3909 (patch) | |
| tree | 122a2f943c2983445c02efc605d1aacfb9f26abf /lib | |
| parent | 6620ccf5d8fd6214fd0fa5a47a412c9a69a73ec2 (diff) | |
| download | external_llvm-45d53b866e63dd4899c2ea691e3539da8dbb3909.zip external_llvm-45d53b866e63dd4899c2ea691e3539da8dbb3909.tar.gz external_llvm-45d53b866e63dd4899c2ea691e3539da8dbb3909.tar.bz2 | |
Enable optimization for integer ABS on X86 if Subtarget has CMOV.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158220 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib')
| -rw-r--r-- | lib/Target/X86/X86ISelLowering.cpp | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/lib/Target/X86/X86ISelLowering.cpp b/lib/Target/X86/X86ISelLowering.cpp index 99bb470..b27af48 100644 --- a/lib/Target/X86/X86ISelLowering.cpp +++ b/lib/Target/X86/X86ISelLowering.cpp @@ -14548,9 +14548,11 @@ static SDValue PerformXorCombine(SDNode *N, SelectionDAG &DAG, if (DCI.isBeforeLegalizeOps()) return SDValue(); - SDValue RV = performIntegerAbsCombine(N, DAG); - if (RV.getNode()) - return RV; + if (Subtarget->hasCMov()) { + SDValue RV = performIntegerAbsCombine(N, DAG); + if (RV.getNode()) + return RV; + } // Try forming BMI if it is available. if (!Subtarget->hasBMI()) |