[OpenMP] Fix a test that fails when 'libgomp' is the default library

We can't do offloading with libgomp, thus the test fails. This change
explicitly chooses an OpenMP runtime library that is capable of
offloading.

This change is similar to
https://github.com/llvm/llvm-project/commit/a5098e5f27badc3ba16533418accd2e17641e4e4.

diff --git a/clang/test/Driver/openmp-system-arch.c b/clang/test/Driver/openmp-system-arch.c
index c921923..b995222 100644 (file)
--- a/clang/test/Driver/openmp-system-arch.c
+++ b/clang/test/Driver/openmp-system-arch.c
@@ -19,41 +19,41 @@
 // RUN: chmod +x %t/nvptx_arch_empty
 
 // case when nvptx-arch and amdgpu-arch return nothing or fails
-// RUN:   %clang -### --target=x86_64-unknown-linux-gnu -nogpulib -fopenmp --offload-arch=native \
+// RUN:   %clang -### --target=x86_64-unknown-linux-gnu -nogpulib -fopenmp=libomp --offload-arch=native \
 // RUN:     --nvptx-arch-tool=%t/nvptx_arch_fail --amdgpu-arch-tool=%t/amdgpu_arch_fail %s 2>&1 \
 // RUN:   | FileCheck %s --check-prefix=NO-OUTPUT-ERROR
-// RUN:   %clang -### --target=x86_64-unknown-linux-gnu -nogpulib -fopenmp --offload-arch=native \
+// RUN:   %clang -### --target=x86_64-unknown-linux-gnu -nogpulib -fopenmp=libomp --offload-arch=native \
 // RUN:     --nvptx-arch-tool=%t/nvptx_arch_empty --amdgpu-arch-tool=%t/amdgpu_arch_empty %s 2>&1 \
 // RUN:   | FileCheck %s --check-prefix=NO-OUTPUT-ERROR
-// RUN:   %clang -### --target=x86_64-unknown-linux-gnu -nogpulib -fopenmp --offload-arch= \
+// RUN:   %clang -### --target=x86_64-unknown-linux-gnu -nogpulib -fopenmp=libomp --offload-arch= \
 // RUN:     --nvptx-arch-tool=%t/nvptx_arch_fail --amdgpu-arch-tool=%t/amdgpu_arch_fail %s 2>&1 \
 // RUN:   | FileCheck %s --check-prefix=NO-OUTPUT-ERROR
-// RUN:   %clang -### --target=x86_64-unknown-linux-gnu -nogpulib -fopenmp --offload-arch= \
+// RUN:   %clang -### --target=x86_64-unknown-linux-gnu -nogpulib -fopenmp=libomp --offload-arch= \
 // RUN:     --nvptx-arch-tool=%t/nvptx_arch_empty --amdgpu-arch-tool=%t/amdgpu_arch_empty %s 2>&1 \
 // RUN:   | FileCheck %s --check-prefix=NO-OUTPUT-ERROR
 // NO-OUTPUT-ERROR: error: failed to deduce triple for target architecture 'native'; specify the triple using '-fopenmp-targets' and '-Xopenmp-target' instead.
 
 // case when amdgpu-arch succeeds.
-// RUN:   %clang -### --target=x86_64-unknown-linux-gnu -nogpulib -fopenmp --offload-arch=native \
+// RUN:   %clang -### --target=x86_64-unknown-linux-gnu -nogpulib -fopenmp=libomp --offload-arch=native \
 // RUN:     --nvptx-arch-tool=%t/nvptx_arch_fail --amdgpu-arch-tool=%t/amdgpu_arch_gfx906 %s 2>&1 \
 // RUN:   | FileCheck %s --check-prefix=ARCH-GFX906
 // ARCH-GFX906: "-cc1" "-triple" "amdgcn-amd-amdhsa"{{.*}}"-target-cpu" "gfx906"
 
 // case when nvptx-arch succeeds.
-// RUN:   %clang -### --target=x86_64-unknown-linux-gnu -nogpulib -fopenmp --offload-arch=native \
+// RUN:   %clang -### --target=x86_64-unknown-linux-gnu -nogpulib -fopenmp=libomp --offload-arch=native \
 // RUN:     --nvptx-arch-tool=%t/nvptx_arch_sm_70 --amdgpu-arch-tool=%t/amdgpu_arch_fail %s 2>&1 \
 // RUN:   | FileCheck %s --check-prefix=ARCH-SM_70
 // ARCH-SM_70: "-cc1" "-triple" "nvptx64-nvidia-cuda"{{.*}}"-target-cpu" "sm_70"
 
 // case when both nvptx-arch and amdgpu-arch succeed.
-// RUN:   %clang -### --target=x86_64-unknown-linux-gnu -nogpulib -fopenmp --offload-arch=native \
+// RUN:   %clang -### --target=x86_64-unknown-linux-gnu -nogpulib -fopenmp=libomp --offload-arch=native \
 // RUN:     --nvptx-arch-tool=%t/nvptx_arch_sm_70 --amdgpu-arch-tool=%t/amdgpu_arch_gfx906 %s 2>&1 \
 // RUN:   | FileCheck %s --check-prefix=ARCH-SM_70-GFX906
 // ARCH-SM_70-GFX906: "-cc1" "-triple" "amdgcn-amd-amdhsa"{{.*}}"-target-cpu" "gfx906"
 // ARCH-SM_70-GFX906: "-cc1" "-triple" "nvptx64-nvidia-cuda"{{.*}}"-target-cpu" "sm_70"
 
 // case when both nvptx-arch and amdgpu-arch succeed with other archs.
-// RUN:   %clang -### --target=x86_64-unknown-linux-gnu -nogpulib -fopenmp --offload-arch=native,sm_75,gfx1030 \
+// RUN:   %clang -### --target=x86_64-unknown-linux-gnu -nogpulib -fopenmp=libomp --offload-arch=native,sm_75,gfx1030 \
 // RUN:     --nvptx-arch-tool=%t/nvptx_arch_sm_70 --amdgpu-arch-tool=%t/amdgpu_arch_gfx906 %s 2>&1 \
 // RUN:   | FileCheck %s --check-prefix=ARCH-MULTIPLE
 // ARCH-MULTIPLE: "-cc1" "-triple" "amdgcn-amd-amdhsa"{{.*}}"-target-cpu" "gfx1030"