[llvm-branch-commits] [clang] [Clang] Add support for the `-fsanitize=concurrency` runtime (PR #225781)

[Yaxun Liu via llvm-branch-commits]

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@@ -1391,6 +1391,8 @@ SanitizerMask AMDGPUToolChain::getSupportedSanitizers(
   // arch xnack support.
   if (!BA || isXnackAvailable(getTriple(), BA.ArchName))
     SupportedMask |= SanitizerKind::Address;
+  // Watchpoint probes do not require xnack.
+  SupportedMask |= SanitizerKind::Concurrency;
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yxsamliu wrote:

This enables CSan for every AMDGPU toolchain, including R600, PAL, Mesa, and AMD SPIR-V. The runtime only supports AMDGCN/HSA. Could we restrict this to that target and add negative tests?

https://github.com/llvm/llvm-project/pull/225781