[llvm-branch-commits] [llvm] [DAGCombiner] Relax nsz constraint with fp->int->fp optimizations (PR #164503)

[Matt Arsenault via llvm-branch-commits]

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@@ -19058,7 +19058,8 @@ static SDValue foldFPToIntToFP(SDNode *N, const SDLoc &DL, SelectionDAG &DAG,
   bool IsSigned = N->getOpcode() == ISD::SINT_TO_FP;
   assert(IsSigned || IsUnsigned);
 
-  bool IsSignedZeroSafe = DAG.getTarget().Options.NoSignedZerosFPMath;
+  bool IsSignedZeroSafe = DAG.getTarget().Options.NoSignedZerosFPMath ||
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arsenm wrote:

I thought NoSignedZerosFPMath was dropped already? I suppose can leave removing this for later 

https://github.com/llvm/llvm-project/pull/164503