From 45d53b866e63dd4899c2ea691e3539da8dbb3909 Mon Sep 17 00:00:00 2001 From: Manman Ren Date: Fri, 8 Jun 2012 18:58:26 +0000 Subject: [PATCH] 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 --- lib/Target/X86/X86ISelLowering.cpp | 8 +++++--- 1 file changed, 5 insertions(+), 3 deletions(-) diff --git a/lib/Target/X86/X86ISelLowering.cpp b/lib/Target/X86/X86ISelLowering.cpp index 99bb470c7aa..b27af484c19 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())