[llvm] [AMDGPU] Lower LDS in functions without sanitize_address in amdgpu-sw-lower-lds. (PR #131147)

[via llvm-commits]

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+; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --check-globals all --version 4
+; RUN: opt < %s -passes=amdgpu-sw-lower-lds -S -amdgpu-asan-instrument-lds=false -mtriple=amdgcn-amd-amdhsa | FileCheck %s
+; RUN: llc < %s -enable-new-pm -stop-after=amdgpu-sw-lower-lds -amdgpu-asan-instrument-lds=false -mtriple=amdgcn-amd-amdhsa | FileCheck %s
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skc7 wrote:

amdgpu-asan-instrument-lds flag is used to run asan instrumentation on LDS instructions lowered to global memory.
Currently, __asan_malloc_impl, __asan_poison_region, __asan_free_impl calls are still inserted though this flag is set to false. 

We are still working on updates to this pass to make it as pure software lowering and then use the flag to decide to do asan instrumentation based on your prior feedback.

https://github.com/llvm/llvm-project/pull/131147