Add SelectionDAG::getNOT method to construct bitwise NOT operations,
corresponding to the "not" and "vnot" PatFrags. Use the new method
in some places where it seems appropriate.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62768 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Target/X86/X86ISelLowering.cpp b/lib/Target/X86/X86ISelLowering.cpp
index c59e9cd..a2ae609 100644
--- a/lib/Target/X86/X86ISelLowering.cpp
+++ b/lib/Target/X86/X86ISelLowering.cpp
@@ -5253,14 +5253,9 @@
SDValue Result = DAG.getNode(Opc, VT, Op0, Op1);
// If the logical-not of the result is required, perform that now.
- if (Invert) {
- MVT EltVT = VT.getVectorElementType();
- SDValue NegOne = DAG.getConstant(EltVT.getIntegerVTBitMask(), EltVT);
- std::vector<SDValue> NegOnes(VT.getVectorNumElements(), NegOne);
- SDValue NegOneV = DAG.getNode(ISD::BUILD_VECTOR, VT, &NegOnes[0],
- NegOnes.size());
- Result = DAG.getNode(ISD::XOR, VT, Result, NegOneV);
- }
+ if (Invert)
+ Result = DAG.getNOT(Result, VT);
+
return Result;
}