[clang] [AMDGPU][clang] Fix clang driver check for multiple sanitizer arguments (PR #166851)

[Robert Imschweiler via cfe-commits]

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@@ -48,13 +48,26 @@
 // RUN:   %clang -no-canonical-prefixes -### --target=x86_64-unknown-linux-gnu -fopenmp=libomp --offload-arch=gfx908:xnack+ --offload-arch=gfx900:xnack+ -fsanitize=address -fno-gpu-sanitize --rocm-path=%S/Inputs/rocm %s 2>&1 \
 // RUN:   | FileCheck -check-prefixes=HOSTSAN,NOGPUSAN,SAN %s
 
+// Catch invalid combination of sanitizers regardless of their order.
+// The address sanitizer enables the device sanitizer pipeline. The fuzzer
+// implicitly turns on LLVMs SanitizerCoverage, which the driver then forwards
+// to the device cc1. SanitizerCoverage is not supported on amdgcn
+// RUN:   %clang -no-canonical-prefixes -### --target=x86_64-unknown-linux-gnu -fopenmp=libomp --offload-arch=gfx908:xnack+ -fsanitize=address,fuzzer --rocm-path=%S/Inputs/rocm %s 2>&1 \
+// RUN:   | FileCheck -check-prefixes=HOSTSANCOMBINATION,INVALIDCOMBINATION1 %s
+// RUN:   %clang -no-canonical-prefixes -### --target=x86_64-unknown-linux-gnu -fopenmp=libomp --offload-arch=gfx908:xnack+ -fsanitize=fuzzer,address --rocm-path=%S/Inputs/rocm %s 2>&1 \
+// RUN:   | FileCheck -check-prefixes=HOSTSANCOMBINATION,INVALIDCOMBINATION2 %s
+
+// INVALIDCOMBINATION1: warning: ignoring '-fsanitize=address,fuzzer' option as it is not currently supported for target 'amdgcn-amd-amdhsa' [-Woption-ignored]
+// INVALIDCOMBINATION2: warning: ignoring '-fsanitize=fuzzer,address' option as it is not currently supported for target 'amdgcn-amd-amdhsa' [-Woption-ignored]
+
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ro-i wrote:

done

https://github.com/llvm/llvm-project/pull/166851