[llvm] [ConstantFolding] Fold sqrt poison -> poison (PR #141821)

[Yingwei Zheng via llvm-commits]

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@@ -293,3 +293,45 @@ define double @fmul_nnan_inf_op1(double %x) {
   %r = fmul nnan double %x, 0xfff0000000000000
   ret double %r
 }
+
+define float @sqrt_poison() {
+; CHECK-LABEL: @sqrt_poison(
+; CHECK-NEXT:    ret float poison
+;
+  %sqrt = call float @llvm.sqrt(float poison)
+  ret float %sqrt
+}
+
+define <2 x float> @sqrt_poison_fixed_vec() {
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dtcxzyw wrote:

Can you add a case with `<float 1.0, float poison>`?


https://github.com/llvm/llvm-project/pull/141821