Add test

Author: jhuber6

clang/lib/Driver/ToolChains/Clang.cpp

@@ -9211,7 +9211,7 @@ void LinkerWrapper::ConstructJob(Compilation &C, const JobAction &JA,
     forAllAssociatedToolChains(C, JA, getToolChain(), [&](const ToolChain &TC) {
       // The device C library is only available for NVPTX and AMDGPU targets
       // and we only link it by default for OpenMP currently.
-      if (!TC.getTriple().isNVPTX() && !TC.getTriple().isAMDGPU() ||
+      if ((!TC.getTriple().isNVPTX() && !TC.getTriple().isAMDGPU()) ||
           !JA.isHostOffloading(Action::OFK_OpenMP))
         return;
       bool HasLibC = TC.getStdlibIncludePath().has_value();

clang/test/Driver/gpu-libc-headers.c

@@ -0,0 +1,32 @@
+// RUN:   %clang -### --target=amdgcn-amd-amdhsa -mcpu=gfx90a --sysroot=%S/Inputs/basic_gpu_tree \
+// RUN:     -ccc-install-dir %S/Inputs/basic_gpu_tree/bin -nogpulib %s 2>&1 | FileCheck %s --check-prefix=CHECK-HEADERS-AMDGPU
+// RUN:   %clang -### --target=nvptx64-nvidia-cuda -march=sm_89 --sysroot=%S/Inputs/basic_gpu_tree \
+// RUN:     -ccc-install-dir %S/Inputs/basic_gpu_tree/bin -nogpulib %s 2>&1 | FileCheck %s --check-prefix=CHECK-HEADERS-NVPTX
+// CHECK-HEADERS-AMDGPU: "-cc1"{{.*}}"-isysroot"{{.*}}"-internal-isystem" "{{.*}}include{{.*}}amdgcn-amd-amdhsa"
+// CHECK-HEADERS-NVPTX: "-cc1"{{.*}}"-isysroot"{{.*}}"-internal-isystem" "{{.*}}include{{.*}}nvptx64-nvidia-cuda"
+
+// RUN:   %clang -### --target=amdgcn-amd-amdhsa -mcpu=gfx1030 -nogpulib \
+// RUN:     -nogpuinc %s 2>&1 | FileCheck %s --check-prefix=CHECK-HEADERS-DISABLED
+// RUN:   %clang -### --target=amdgcn-amd-amdhsa -mcpu=gfx1030 -nogpulib \
+// RUN:     -nostdinc %s 2>&1 | FileCheck %s --check-prefix=CHECK-HEADERS-DISABLED
+// RUN:   %clang -### --target=amdgcn-amd-amdhsa -mcpu=gfx1030 -nogpulib \
+// RUN:     -nobuiltininc %s 2>&1 | FileCheck %s --check-prefix=CHECK-HEADERS-DISABLED
+// CHECK-HEADERS-DISABLED-NOT: "-cc1"{{.*}}"-internal-isystem" "{{.*}}include{{.*}}gpu-none-llvm"
+
+
+// RUN:   %clang -### -fopenmp=libomp --target=x86_64-unknown-linux-gnu \
+// RUN:     --offload-arch=gfx908 --rocm-path=%S/Inputs/rocm --sysroot=%S/Inputs/basic_gpu_tree \
+// RUN:     -ccc-install-dir %S/Inputs/basic_gpu_tree/bin %s 2>&1 | FileCheck %s --check-prefix=OPENMP-AMDGPU
+// OPENMP-AMDGPU: clang-linker-wrapper{{.*}}"--device-linker=amdgcn-amd-amdhsa=-lc"
+// RUN:   %clang -### -fopenmp=libomp --target=x86_64-unknown-linux-gnu -foffload-lto \
+// RUN:     --offload-arch=sm_52 --cuda-path=%S/Inputs/CUDA_111/usr/local/cuda --sysroot=%S/Inputs/basic_gpu_tree \
+// RUN:     -ccc-install-dir %S/Inputs/basic_gpu_tree/bin %s 2>&1 | FileCheck %s --check-prefix=OPENMP-NVPTX
+// OPENMP-NVPTX: clang-linker-wrapper{{.*}}"--device-linker=nvptx64-nvidia-cuda=-lc"
+// RUN:   %clang -### --target=x86_64-unknown-linux-gnu --offload-arch=gfx908 \
+// RUN:     --offload-new-driver --rocm-path=%S/Inputs/rocm --sysroot=%S/Inputs/basic_gpu_tree \
+// RUN:     -ccc-install-dir %S/Inputs/basic_gpu_tree/bin -x hip %s 2>&1 | FileCheck %s --check-prefix=HIP
+// HIP-NOT: "--device-linker=amdgcn-amd-amdhsa=-lc"
+// RUN:   %clang -### --target=x86_64-unknown-linux-gnu -fgpu-rdc --offload-arch=sm_52 \
+// RUN:     --cuda-path=%S/Inputs/CUDA_111/usr/local/cuda --sysroot=%S/Inputs/basic_gpu_tree \
+// RUN:     -ccc-install-dir %S/Inputs/basic_gpu_tree/bin -x cuda %s 2>&1 | FileCheck %s --check-prefix=CUDA
+// CUDA-NOT: "--device-linker=nvptx64-nvidia-cuda=-lc"