[llvm] [DSE] Apply initializes attribute to DSE (PR #107282)

[Haopeng Liu via llvm-commits]

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@@ -0,0 +1,175 @@
+; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
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haopliu wrote:

I copied this note from other unit tests. From my understanding, `CHECK-NEXT` in this `ll` file is the assertion. Did I miss something? 

https://github.com/llvm/llvm-project/pull/107282