[llvm] [GVN] Turn off ScalarPRE for TokenLike Types (PR #156513)

[Farzon Lotfi via llvm-commits]

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@@ -0,0 +1,57 @@
+; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --version 5
+; RUN: opt -S -passes=gvn %s | FileCheck %s
+
+; NOTE: when we use a Token like type we should not introduce a phi
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farzonl wrote:

@bogner i did put this note in

https://github.com/llvm/llvm-project/pull/156513