[llvm] [SLP] Make getSameOpcode support interchangeable instructions. (PR #127450)

[Alexey Bataev via llvm-commits]

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@@ -5,7 +5,9 @@ define void @h() {
 ; CHECK-LABEL: define void @h() {
 ; CHECK-NEXT:  entry:
 ; CHECK-NEXT:    [[ARRAYIDX2:%.*]] = getelementptr i8, ptr null, i64 16
-; CHECK-NEXT:    store <8 x i16> zeroinitializer, ptr [[ARRAYIDX2]], align 2
+; CHECK-NEXT:    [[ARRAYIDX18:%.*]] = getelementptr i8, ptr null, i64 24
+; CHECK-NEXT:    store <4 x i16> zeroinitializer, ptr [[ARRAYIDX2]], align 2
+; CHECK-NEXT:    store <4 x i16> zeroinitializer, ptr [[ARRAYIDX18]], align 2
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alexey-bataev wrote:

Regression?

https://github.com/llvm/llvm-project/pull/127450