[llvm-branch-commits] [compiler-rt] [compiler-rt] Add 'csan' library for the concurrency sanitizer (PR #225782)

[Yaxun Liu via llvm-branch-commits]

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@@ -897,6 +897,15 @@ else()
   set(COMPILER_RT_HAS_UBSAN FALSE)
 endif()
 
+if ((COMPILER_RT_HAS_SANITIZER_COMMON AND UBSAN_SUPPORTED_ARCH AND
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yxsamliu wrote:

Could we avoid using `UBSAN_SUPPORTED_ARCH` here? CSan support is narrower, so this may configure `check-csan` on targets where Clang rejects `-fsanitize=concurrency`, such as AArch64. Please use CSan-specific architecture lists and separate host and AMDGPU support if needed.

https://github.com/llvm/llvm-project/pull/225782