[llvm] [MergeFunc] Remove discardables function before writing alias or thunk. (PR #128865)

[Teresa Johnson via llvm-commits]

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@@ -43,14 +43,8 @@ define linkonce i32 @funA(i32 %x, i32 %y) {
 ; CHECK-NEXT:    ret i32 [[SUM3]]
 ;
 ;
-; CHECK-LABEL: define linkonce i32 @funC(
-; CHECK-SAME: i32 [[TMP0:%.*]], i32 [[TMP1:%.*]]) {
-; CHECK-NEXT:    [[TMP3:%.*]] = tail call i32 @[[GLOB0:[0-9]+]](i32 [[TMP0]], i32 [[TMP1]])
-; CHECK-NEXT:    ret i32 [[TMP3]]
-;
-;
 ; CHECK-LABEL: define linkonce i32 @funB(
 ; CHECK-SAME: i32 [[TMP0:%.*]], i32 [[TMP1:%.*]]) {
-; CHECK-NEXT:    [[TMP3:%.*]] = tail call i32 @[[GLOB0]](i32 [[TMP0]], i32 [[TMP1]])
+; CHECK-NEXT:    [[TMP3:%.*]] = tail call i32 @[[GLOB0:[0-9]+]](i32 [[TMP0]], i32 [[TMP1]])
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teresajohnson wrote:

Oh I see, that is automatically generated. Hmm, seems like a bug in the update script, especially since there is currently no use of the captured GLOB0 value! I'll leave it up to you then, manually fixing it might be reasonable but then would get messed up if the update script gets run again at some point.

https://github.com/llvm/llvm-project/pull/128865