[llvm-branch-commits] [llvm] InstCombine: Handle exp/exp2/exp10 in SimplifyDemandedFPClass (PR #173432)

[Yingwei Zheng via llvm-branch-commits]

================
@@ -2106,6 +2106,98 @@ Value *InstCombinerImpl::SimplifyDemandedUseFPClass(Value *V,
       Known.copysign(KnownSign);
       break;
     }
+    case Intrinsic::exp:
+    case Intrinsic::exp2:
+    case Intrinsic::exp10: {
+      if ((DemandedMask &
+           (fcPosZero | fcPosSubnormal | fcPosNormal | fcPosInf)) == fcNone) {
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dtcxzyw wrote:

```suggestion
           fcPositive) == fcNone) {
```

https://github.com/llvm/llvm-project/pull/173432