[clang] c720f92 - [HIP] disable sanitizer for `__hip_cuid` (#141581)

[via cfe-commits]

Author: Yaxun (Sam) Liu
Date: 2025-05-27T16:58:04-04:00
New Revision: c720f920094e445af23ce8e214813f57694ab716

URL: https://github.com/llvm/llvm-project/commit/c720f920094e445af23ce8e214813f57694ab716
DIFF: https://github.com/llvm/llvm-project/commit/c720f920094e445af23ce8e214813f57694ab716.diff

LOG: [HIP] disable sanitizer for `__hip_cuid` (#141581)

Global variable `__hip_cuid_*` is for identifying purpose and does not
need sanitization, therefore disable it for sanitizers.

Added: 
    clang/test/CodeGenCUDA/nosanitize-cuid.hip

Modified: 
    clang/lib/CodeGen/CodeGenModule.cpp

Removed: 
    


################################################################################
diff  --git a/clang/lib/CodeGen/CodeGenModule.cpp b/clang/lib/CodeGen/CodeGenModule.cpp
index 16e010adbeb5f..039507bc03510 100644
--- a/clang/lib/CodeGen/CodeGenModule.cpp
+++ b/clang/lib/CodeGen/CodeGenModule.cpp
@@ -971,6 +971,7 @@ void CodeGenModule::Release() {
         getModule(), Int8Ty, false, llvm::GlobalValue::ExternalLinkage,
         llvm::Constant::getNullValue(Int8Ty),
         "__hip_cuid_" + getContext().getCUIDHash());
+    getSanitizerMetadata()->disableSanitizerForGlobal(GV);
     addCompilerUsedGlobal(GV);
   }
   emitLLVMUsed();

diff  --git a/clang/test/CodeGenCUDA/nosanitize-cuid.hip b/clang/test/CodeGenCUDA/nosanitize-cuid.hip
new file mode 100644
index 0000000000000..4af83c91ac883
--- /dev/null
+++ b/clang/test/CodeGenCUDA/nosanitize-cuid.hip
@@ -0,0 +1,6 @@
+// RUN: %clang_cc1 -triple amdgcn-amd-amdhsa -fsanitize=address -fcuda-is-device \
+// RUN:    -emit-llvm -cuid=abcd -o - %s | FileCheck  %s
+
+#include "Inputs/cuda.h"
+
+// CHECK: @__hip_cuid_{{.*}} = {{.*}} no_sanitize_address