[llvm] [MemProf] Fix tailcall discovery checking for multiple callee chains (PR #92632)

[Snehasish Kumar via llvm-commits]

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@@ -91,39 +88,39 @@ return:                                           ; preds = %if.else, %if.then
 }
 
 ; Function Attrs: noinline
-; IR-LABEL: @main()
-define dso_local i32 @main() local_unnamed_addr #0 {
+; IR-LABEL: @xyz()
+define dso_local i32 @xyz() local_unnamed_addr #0 {
 delete.end13:
   ; IR: call ptr @_Z3foob(i1 true)
-  %call = tail call ptr @_Z3foob(i1 true), !callsite !10
+  %call = tail call ptr @_Z3foob(i1 true)
   ; IR: call ptr @_Z3foob(i1 true)
-  %call1 = tail call ptr @_Z3foob(i1 true), !callsite !11
+  %call1 = tail call ptr @_Z3foob(i1 true)
   ; IR: call ptr @_Z3foob(i1 false)
-  %call2 = tail call ptr @_Z3foob(i1 false), !callsite !12
+  %call2 = tail call ptr @_Z3foob(i1 false)
   ; IR: call ptr @_Z3foob(i1 false)
-  %call3 = tail call ptr @_Z3foob(i1 false), !callsite !13
+  %call3 = tail call ptr @_Z3foob(i1 false)
+  ret i32 0
+}
+
+define dso_local i32 @main() local_unnamed_addr #0 {
+delete.end13:
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snehasish wrote:

nit: I don't think this `delete.end13` label is referenced anywhere in this or other tests. 

https://github.com/llvm/llvm-project/pull/92632