Move ConstantFP construction back to the 2.5-ish API.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77247 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/SelectionDAG/SelectionDAGBuild.cpp b/lib/CodeGen/SelectionDAG/SelectionDAGBuild.cpp
index 8685c85..3a8b782 100644
--- a/lib/CodeGen/SelectionDAG/SelectionDAGBuild.cpp
+++ b/lib/CodeGen/SelectionDAG/SelectionDAGBuild.cpp
@@ -2148,8 +2148,7 @@
       const VectorType *DestTy = cast<VectorType>(I.getType());
       const Type *ElTy = DestTy->getElementType();
       unsigned VL = DestTy->getNumElements();
-      std::vector<Constant*> NZ(VL, 
-                            DAG.getContext()->getConstantFPNegativeZero(ElTy));
+      std::vector<Constant*> NZ(VL, ConstantFP::getNegativeZero(ElTy));
       Constant *CNZ = DAG.getContext()->getConstantVector(&NZ[0], NZ.size());
       if (CV == CNZ) {
         SDValue Op2 = getValue(I.getOperand(1));
@@ -2160,8 +2159,7 @@
     }
   }
   if (ConstantFP *CFP = dyn_cast<ConstantFP>(I.getOperand(0)))
-    if (CFP->isExactlyValue(
-             DAG.getContext()->getConstantFPNegativeZero(Ty)->getValueAPF())) {
+    if (CFP->isExactlyValue(ConstantFP::getNegativeZero(Ty)->getValueAPF())) {
       SDValue Op2 = getValue(I.getOperand(1));
       setValue(&I, DAG.getNode(ISD::FNEG, getCurDebugLoc(),
                                Op2.getValueType(), Op2));