[llvm] [AMDGPU] Insert MFMA anti-hints in GCNPreRAOptimizations (PR #218075)

[Matt Arsenault via llvm-commits]

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@@ -0,0 +1,135 @@
+# NOTE: Assertions have been autogenerated by utils/update_mir_test_checks.py UTC_ARGS: --version 6
+# RUN: llc -mtriple=amdgpu9.42-amd-amdhsa -run-pass=amdgpu-pre-ra-optimizations,greedy,machineverifier,virtregrewriter %s -o - | FileCheck %s --check-prefix=CHECK
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arsenm wrote:

Don't manually add machine-verifier

I've also been thinking we probably should just keep all new mir tests using the new PM, so -passes instead of -run-pass 

https://github.com/llvm/llvm-project/pull/218075