convert ConstantVector::get to use ArrayRef.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@125537 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 6 insertions, 22 deletions

diff --git a/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp b/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp
index 09e33e2e62..fc283a3622 100644
--- a/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp
+++ b/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp
@@ -2387,30 +2387,14 @@ void SelectionDAGBuilder::visitIndirectBr(const IndirectBrInst &I) {
 void SelectionDAGBuilder::visitFSub(const User &I) {
   // -0.0 - X --> fneg
   const Type *Ty = I.getType();
-  if (Ty->isVectorTy()) {
-    if (ConstantVector *CV = dyn_cast<ConstantVector>(I.getOperand(0))) {
-      const VectorType *DestTy = cast<VectorType>(I.getType());
-      const Type *ElTy = DestTy->getElementType();
-      unsigned VL = DestTy->getNumElements();
-      std::vector<Constant*> NZ(VL, ConstantFP::getNegativeZero(ElTy));
-      Constant *CNZ = ConstantVector::get(&NZ[0], NZ.size());
-      if (CV == CNZ) {
-        SDValue Op2 = getValue(I.getOperand(1));
-        setValue(&I, DAG.getNode(ISD::FNEG, getCurDebugLoc(),
-                                 Op2.getValueType(), Op2));
-        return;
-      }
-    }
+  if (isa<Constant>(I.getOperand(0)) &&
+      I.getOperand(0) == ConstantFP::getZeroValueForNegation(Ty)) {
+    SDValue Op2 = getValue(I.getOperand(1));
+    setValue(&I, DAG.getNode(ISD::FNEG, getCurDebugLoc(),
+                             Op2.getValueType(), Op2));
+    return;
   }
 
-  if (ConstantFP *CFP = dyn_cast<ConstantFP>(I.getOperand(0)))
-    if (CFP->isExactlyValue(ConstantFP::getNegativeZero(Ty)->getValueAPF())) {
-      SDValue Op2 = getValue(I.getOperand(1));
-      setValue(&I, DAG.getNode(ISD::FNEG, getCurDebugLoc(),
-                               Op2.getValueType(), Op2));
-      return;
-    }
-
   visitBinary(I, ISD::FSUB);
 }