[llvm] [AMDGPU] Use alias analysis for SMEM/VMEM WAR waitcnts (PR #206569)

[Matt Arsenault via llvm-commits]

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@@ -0,0 +1,32 @@
+# FIXME: This precommit test documents the current missing waitcnt for #203610.
+# RUN: llc -mtriple=amdgcn -mcpu=gfx900 -verify-machineinstrs -run-pass=si-insert-waitcnts -o - %s | FileCheck %s
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arsenm wrote:

```suggestion
# RUN: llc -mtriple=amdgpu9.00 -run-pass=si-insert-waitcnts -o - %s | FileCheck %s
```

https://github.com/llvm/llvm-project/pull/206569