[llvm] [MachineCSE] Enhance MachineCSE simple PRE to find common subexpressi… (PR #129860)

[Matt Arsenault via llvm-commits]

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@@ -0,0 +1,126 @@
+# NOTE: Assertions have been autogenerated by utils/update_mir_test_checks.py UTC_ARGS: --version 5
+# RUN: llc -mtriple=amdgcn -run-pass=machine-cse -verify-machineinstrs -o - %s | FileCheck %s
+# RUN: llc -mtriple=amdgcn -passes=machine-cse -o - %s | FileCheck %s
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arsenm wrote:

Don't need -verify-machieninstrs, and don't really need to test both PMs 

https://github.com/llvm/llvm-project/pull/129860