[llvm] [X86] Try Folding icmp of v8i32 -> fcmp of v8f32 on AVX (PR #82290)

[Simon Pilgrim via llvm-commits]

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@@ -2313,6 +2313,26 @@ bool TargetLowering::SimplifyDemandedBits(
     Known = TLO.DAG.computeKnownBits(Op, DemandedElts, Depth);
     break;
   }
+  case ISD::SINT_TO_FP: {
+    EVT InnerVT = Op.getOperand(0).getValueType();
+    const APInt &DemandedBitsToUse =
+        TLO.DAG.getTargetLoweringInfo().isBitcastFree(VT, InnerVT)
+            ? OriginalDemandedBits
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RKSimon wrote:

You can't safely use OriginalDemandedBits as it won't account for multiple uses - you will need to move this inside SimplifyMultipleUseDemandedBits

https://github.com/llvm/llvm-project/pull/82290