[llvm-branch-commits] [llvm] InstCombine: Basic insertelement support for SimplifyDemandedFPClass (PR #174100)

[Simon Pilgrim via llvm-branch-commits]

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@@ -2303,6 +2303,17 @@ Value *InstCombinerImpl::SimplifyDemandedUseFPClass(Value *V,
       return I;
     break;
   }
+  case Instruction::InsertElement: {
+    KnownFPClass KnownInserted, KnownVec;
+    if (SimplifyDemandedFPClass(I, 1, DemandedMask, KnownInserted, Depth + 1) ||
+        SimplifyDemandedFPClass(I, 0, DemandedMask, KnownVec, Depth + 1))
+      return I;
+    break;
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RKSimon wrote:

Dead code below?

https://github.com/llvm/llvm-project/pull/174100