[llvm] r343933 - [LegalizeVectorOps] Make ExpandStrictFPOp return the result corresponding to the result number of the SDValue passed in.

[Craig Topper via llvm-commits]

Author: ctopper
Date: Sun Oct  7 00:16:44 2018
New Revision: 343933

URL: http://llvm.org/viewvc/llvm-project?rev=343933&view=rev
Log:
[LegalizeVectorOps] Make ExpandStrictFPOp return the result corresponding to the result number of the SDValue passed in.

It was always returning the chain which seems to be the result number of the SDValue in the lit tests we have. But I don't know if that's guaranteed.

Modified:
    llvm/trunk/lib/CodeGen/SelectionDAG/LegalizeVectorOps.cpp

Modified: llvm/trunk/lib/CodeGen/SelectionDAG/LegalizeVectorOps.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/CodeGen/SelectionDAG/LegalizeVectorOps.cpp?rev=343933&r1=343932&r2=343933&view=diff
==============================================================================
--- llvm/trunk/lib/CodeGen/SelectionDAG/LegalizeVectorOps.cpp (original)
+++ llvm/trunk/lib/CodeGen/SelectionDAG/LegalizeVectorOps.cpp Sun Oct  7 00:16:44 2018
@@ -1177,7 +1177,7 @@ SDValue VectorLegalizer::ExpandStrictFPO
   AddLegalizedOperand(Op.getValue(0), Result);
   AddLegalizedOperand(Op.getValue(1), NewChain);
 
-  return NewChain;
+  return Op.getResNo() ? NewChain : Result;
 }
 
 SDValue VectorLegalizer::UnrollVSETCC(SDValue Op) {