nit

Author: AllanZyne

llvm/lib/SYCLLowerIR/SanitizeDeviceGlobal.cpp

@@ -50,6 +50,7 @@ static bool instrumentDeviceGlobal(Module &M) {
     if (!isDeviceGlobalVariable(G) || !hasDeviceImageScopeProperty(G))
       continue;
 
+    // Skip instrumenting on "__AsanKernelMetadata" etc.
     if (G.getName().starts_with("__Asan"))
       continue;
 

llvm/lib/Transforms/Instrumentation/AddressSanitizer.cpp

@@ -1511,6 +1511,7 @@ PreservedAnalyses AddressSanitizerPass::run(Module &M,
       ClUseStackSafety ? &MAM.getResult<StackSafetyGlobalAnalysis>(M) : nullptr;
 
   if (Triple(M.getTargetTriple()).isSPIROrSPIRV()) {
+    // Make sure "__AsanKernelMetadata" always exists
     ExtendSpirKernelArgs(M, FAM);
     Modified = true;