[llvm] r295563 - [X86][IR] Simplify the XOP vpcmov autoupgrade code. NFC

[Craig Topper via llvm-commits]

Author: ctopper
Date: Sat Feb 18 13:51:19 2017
New Revision: 295563

URL: http://llvm.org/viewvc/llvm-project?rev=295563&view=rev
Log:
[X86][IR] Simplify the XOP vpcmov autoupgrade code. NFC

Modified:
    llvm/trunk/lib/IR/AutoUpgrade.cpp

Modified: llvm/trunk/lib/IR/AutoUpgrade.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/IR/AutoUpgrade.cpp?rev=295563&r1=295562&r2=295563&view=diff
==============================================================================
--- llvm/trunk/lib/IR/AutoUpgrade.cpp (original)
+++ llvm/trunk/lib/IR/AutoUpgrade.cpp Sat Feb 18 13:51:19 2017
@@ -1079,14 +1079,10 @@ void llvm::UpgradeIntrinsicCall(CallInst
           Builder.CreateCall(VPCOM, {CI->getArgOperand(0), CI->getArgOperand(1),
                                      Builder.getInt8(Imm)});
     } else if (IsX86 && Name == "xop.vpcmov") {
-      Value *Arg0 = CI->getArgOperand(0);
-      Value *Arg1 = CI->getArgOperand(1);
       Value *Sel = CI->getArgOperand(2);
-      unsigned NumElts = CI->getType()->getVectorNumElements();
-      Constant *MinusOne = ConstantVector::getSplat(NumElts, Builder.getInt64(-1));
-      Value *NotSel = Builder.CreateXor(Sel, MinusOne);
-      Value *Sel0 = Builder.CreateAnd(Arg0, Sel);
-      Value *Sel1 = Builder.CreateAnd(Arg1, NotSel);
+      Value *NotSel = Builder.CreateNot(Sel);
+      Value *Sel0 = Builder.CreateAnd(CI->getArgOperand(0), Sel);
+      Value *Sel1 = Builder.CreateAnd(CI->getArgOperand(1), NotSel);
       Rep = Builder.CreateOr(Sel0, Sel1);
     } else if (IsX86 && Name == "sse42.crc32.64.8") {
       Function *CRC32 = Intrinsic::getDeclaration(F->getParent(),