[llvm] [AMDGPU]: Rewrite mbcnt_lo/mbcnt_hi to work item ID where applicable (PR #160496)

[Juan Manuel Martinez Caamaño via llvm-commits]

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@@ -0,0 +1,184 @@
+; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --version 6
+; RUN: opt -S -mtriple amdgcn-unknown-amdhsa -mcpu=gfx906 -passes=amdgpu-codegenprepare < %s | FileCheck --check-prefixes=CHECK,GFX9 %s
+; RUN: opt -S -mtriple amdgcn-unknown-amdhsa -mcpu=gfx1030 -passes=amdgpu-codegenprepare < %s | FileCheck --check-prefixes=CHECK,GFX10 %s
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jmmartinez wrote:

The checks look all the same to me for both architectures. Can we use only the CHECK prefix ?

https://github.com/llvm/llvm-project/pull/160496