Add support for lowering fneg when AVX is enabled.
rdar://10566486
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@146625 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Target/X86/X86ISelLowering.cpp b/lib/Target/X86/X86ISelLowering.cpp
index e38de9c..95421fb 100644
--- a/lib/Target/X86/X86ISelLowering.cpp
+++ b/lib/Target/X86/X86ISelLowering.cpp
@@ -7910,19 +7910,18 @@
DebugLoc dl = Op.getDebugLoc();
EVT VT = Op.getValueType();
EVT EltVT = VT;
- if (VT.isVector())
+ unsigned NumElts = VT == MVT::f64 ? 2 : 4;
+ if (VT.isVector()) {
EltVT = VT.getVectorElementType();
- std::vector<Constant*> CV;
+ NumElts = VT.getVectorNumElements();
+ }
+ SmallVector<Constant*,8> CV;
if (EltVT == MVT::f64) {
Constant *C = ConstantFP::get(*Context, APFloat(APInt(64, 1ULL << 63)));
- CV.push_back(C);
- CV.push_back(C);
+ CV.assign(NumElts, C);
} else {
Constant *C = ConstantFP::get(*Context, APFloat(APInt(32, 1U << 31)));
- CV.push_back(C);
- CV.push_back(C);
- CV.push_back(C);
- CV.push_back(C);
+ CV.assign(NumElts, C);
}
Constant *C = ConstantVector::get(CV);
SDValue CPIdx = DAG.getConstantPool(C, getPointerTy(), 16);
@@ -7930,11 +7929,12 @@
MachinePointerInfo::getConstantPool(),
false, false, false, 16);
if (VT.isVector()) {
+ MVT XORVT = VT.getSizeInBits() == 128 ? MVT::v2i64 : MVT::v4i64;
return DAG.getNode(ISD::BITCAST, dl, VT,
- DAG.getNode(ISD::XOR, dl, MVT::v2i64,
- DAG.getNode(ISD::BITCAST, dl, MVT::v2i64,
+ DAG.getNode(ISD::XOR, dl, XORVT,
+ DAG.getNode(ISD::BITCAST, dl, XORVT,
Op.getOperand(0)),
- DAG.getNode(ISD::BITCAST, dl, MVT::v2i64, Mask)));
+ DAG.getNode(ISD::BITCAST, dl, XORVT, Mask)));
} else {
return DAG.getNode(X86ISD::FXOR, dl, VT, Op.getOperand(0), Mask);
}