[CUDA] Regression test to make sure C++ include path are forwarded to host and device frontends.

[sfantao]

Summary

Add test to detect the C++ include paths are passed to both CUDA host and device frontends.

[sfantao]

Friendly ping.

Thanks!

[tra]

cuda-detect.cu may be a better place for this test.

test/Driver/cuda-simple.cu

27 ↗

(On Diff #66051)

Linker match pattern will cause problems on windows. We normally use ld{{.*}}" .

Linker options are irrelevant here, IMO, as this line is only used as a marker for the end of the list of commands produced by compiler.

[sfantao]

• Move CUDA C++ include path tests to cuda-detect.cu. Address other Art's comments.

[tra]

test/Driver/cuda-detect.cu

75–77

These two lines seem to be copy-pasted from cuda-simple.cu by mistake.

[sfantao]

• Remove redundant test - copied by mistake.

test/Driver/cuda-detect.cu

75–77

Woops... Sorry about that. Fixed in the last diff.

[tra]

LGTM.

test/Driver/cuda-detect.cu

 // RUN:   | FileCheck %s -check-prefix COMMON -check-prefix NOLIBDEVICE
 // Verify that we don't add include paths, link with libdevice or
 // -include __clang_cuda_runtime_wrapper.h without valid CUDA installation.
 // RUN: %clang -### -v --target=i386-unknown-linux --cuda-gpu-arch=sm_35 \
 // RUN:   --cuda-path=%S/no-cuda-there %s 2>&1 \
 // RUN:   | FileCheck %s -check-prefix COMMON \
 // RUN:     -check-prefix NOCUDAINC -check-prefix NOLIBDEVICE
 
+// Verify that C++ include paths are passed for both host and device frontends.
+// RUN: %clang -### -target x86_64-linux-gnu %s \
+// RUN: --sysroot=%S/Inputs/ubuntu_14.04_multiarch_tree2 2>&1 \
+// RUN: | FileCheck %s --check-prefix CHECK-CXXINCLUDE
+
 // CHECK: Found CUDA installation: {{.*}}/Inputs/CUDA/usr/local/cuda
 // NOCUDA-NOT: Found CUDA installation:
 
 // MISSINGLIBDEVICE: error: cannot find libdevice for sm_30.
 
 // COMMON: "-triple" "nvptx-nvidia-cuda"
 // COMMON-SAME: "-fcuda-is-device"
 // LIBDEVICE-SAME: "-mlink-cuda-bitcode"
 // NOLIBDEVICE-NOT: "-mlink-cuda-bitcode"
 // LIBDEVICE20-SAME: libdevice.compute_20.10.bc
 // LIBDEVICE30-SAME: libdevice.compute_30.10.bc
 // LIBDEVICE35-SAME: libdevice.compute_35.10.bc
 // NOLIBDEVICE-NOT: libdevice.compute_{{.*}}.bc
 // LIBDEVICE-SAME: "-target-feature" "+ptx42"
 // NOLIBDEVICE-NOT: "-target-feature" "+ptx42"
 // CUDAINC-SAME: "-internal-isystem" "{{.*}}/Inputs/CUDA{{[_0-9]+}}/usr/local/cuda/include"
 // NOCUDAINC-NOT: "-internal-isystem" "{{.*}}/cuda/include"
 // CUDAINC-SAME: "-include" "__clang_cuda_runtime_wrapper.h"
 // NOCUDAINC-NOT: "-include" "__clang_cuda_runtime_wrapper.h"
 // COMMON-SAME: "-x" "cuda"
+// CHECK-CXXINCLUDE: clang{{.*}} "-cc1" "-triple" "nvptx64-nvidia-cuda"
+// CHECK-CXXINCLUDE-SAME: {{.*}}"-internal-isystem" "{{.+}}/include/c++/4.8"
+// CHECK-CXXINCLUDE: clang{{.*}} "-cc1" "-triple" "x86_64--linux-gnu"
+// CHECK-CXXINCLUDE-SAME: {{.*}}"-internal-isystem" "{{.+}}/include/c++/4.8"
+// CHECK-CXXINCLUDE: ld{{.*}}"