[llvm-branch-commits] [llvm] InstCombine: Add more tests for min/max SimplifyDemandedFPClass (PR #175381)

[Yingwei Zheng via llvm-branch-commits]

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@@ -370,6 +385,32 @@ define nofpclass(snan) float @cannot_fold_negative_or_zero__positive_or_zero_1()
   ret float %result
 }
 
+define nofpclass(snan) float @nsz_fold_negative_or_zero__positive_or_zero_0() {
+; CHECK-LABEL: define nofpclass(snan) float @nsz_fold_negative_or_zero__positive_or_zero_0() {
+; CHECK-NEXT:    [[MUST_BE_NEGATIVE_OR_ZERO:%.*]] = call float @returns_positive_or_zero()
+; CHECK-NEXT:    [[MUST_BE_POSITIVE_OR_ZERO:%.*]] = call float @returns_negative_or_zero()
+; CHECK-NEXT:    [[RESULT:%.*]] = call nnan nsz float @llvm.maximum.f32(float [[MUST_BE_NEGATIVE_OR_ZERO]], float [[MUST_BE_POSITIVE_OR_ZERO]])
+; CHECK-NEXT:    ret float [[RESULT]]
+;
+  %must.be.negative.or.zero = call float @returns_positive_or_zero()
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dtcxzyw wrote:

Wrong value name.

https://github.com/llvm/llvm-project/pull/175381