Use changeTypeToInteger

Author: ecnelises

llvm/lib/CodeGen/SelectionDAG/LegalizeFloatTypes.cpp

@@ -267,10 +267,9 @@ SDValue DAGTypeLegalizer::SoftenFloatRes_ConstantFP(SDNode *N) {
 SDValue DAGTypeLegalizer::SoftenFloatRes_EXTRACT_ELEMENT(SDNode *N) {
   SDValue Src = N->getOperand(0);
   assert(Src.getValueType() == MVT::ppcf128 &&
-         Src.getOperand(0)->getOpcode() == ISD::BUILD_PAIR &&
          "In floats only ppcf128 can be extracted by element!");
-  EVT DestVT = EVT::getIntegerVT(*DAG.getContext(), N->getValueSizeInBits(0));
-  return DAG.getNode(ISD::EXTRACT_ELEMENT, SDLoc(N), DestVT,
+  return DAG.getNode(ISD::EXTRACT_ELEMENT, SDLoc(N),
+                     N->getValueType(0).changeTypeToInteger(),
                      Src.getOperand(0), N->getOperand(1));
 }
 

llvm/test/CodeGen/PowerPC/ppcsoftops.ll

@@ -71,8 +71,8 @@ define dso_local zeroext i32 @func(double noundef %0, double noundef %1) #0 {
 ; To check ppc_fp128 soften without crash
 define zeroext i1 @ppcf128_soften(ppc_fp128 %a) #0 {
 entry:
-  %0 = tail call i1 @llvm.is.fpclass.ppcf128(ppc_fp128 %a, i32 100)
-  ret i1 %0
+  %fpclass = tail call i1 @llvm.is.fpclass.ppcf128(ppc_fp128 %a, i32 100)
+  ret i1 %fpclass
 
   ; CHECK-LABEL: ppcf128_soften
 }