[llvm] [AMDGPU] Remove the AnnotateKernelFeatures pass (PR #130198)

[Shilei Tian via llvm-commits]

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@@ -0,0 +1,550 @@
+; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py UTC_ARGS: --version 5
+; RUN: llc -mtriple=amdgcn-amd-amdhsa -mcpu=gfx900 < %s | FileCheck -check-prefixes=GFX9 %s
+; RUN: llc -mtriple=amdgcn-amd-amdhsa -mcpu=gfx1010 < %s | FileCheck -check-prefixes=GFX10 %s
+
+;
+; These functions all should have the attribute amdgpu-no-flat-scratch-init set if the AMDGPUAttributor
+; pass is run. Therefore the purpose is to test llc when the attribute is incorrectly missing.
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shiltian wrote:

We used to run the attributor twice, which allowed some attributes to be added in between the two runs. Some of those are fine as they don't affect correctness. However, if any of the attributes added in that phase impact correctness, then that's a problem.

https://github.com/llvm/llvm-project/pull/130198