ci: add job testing cuda12.2 with nvcc using clang 18 as host compiler

.gitlab-ci.yml

@@ -396,6 +396,17 @@ t:cuda12.2-nvidia:
         - .run_dependent
         - .needs_centos7_x86_64
 
+t:cuda12.2-nvidia-clang:
+    extends:
+        - .cuda12.2_nvidia_clang
+        - .cmake_test_linux_release
+        - .linux_x86_64_tags_cuda
+        - .cmake_junit_artifacts
+        - .run_dependent
+        - .needs_centos7_x86_64
+    variables:
+        CMAKE_CI_JOB_NIGHTLY: "true"
+
 t:cuda12.2-clang:
     extends:
         - .cuda12.2_clang

.gitlab/ci/configure_cuda12.2_nvidia.cmake

@@ -1,5 +1 @@
-set(CMake_TEST_CUDA "NVIDIA" CACHE STRING "")
-set(CMake_TEST_CUDA_CUPTI "ON" CACHE STRING "")
-set(CMake_TEST_CUDA_STANDARDS "03;11;14;17;20" CACHE STRING "")
-
-include("${CMAKE_CURRENT_LIST_DIR}/configure_external_test.cmake")
+include("${CMAKE_CURRENT_LIST_DIR}/configure_cuda12.2_nvidia_common.cmake")

.gitlab/ci/configure_cuda12.2_nvidia_clang.cmake

@@ -0,0 +1 @@
+include("${CMAKE_CURRENT_LIST_DIR}/configure_cuda12.2_nvidia_common.cmake")

.gitlab/ci/configure_cuda12.2_nvidia_common.cmake

@@ -0,0 +1,5 @@
+set(CMake_TEST_CUDA "NVIDIA" CACHE STRING "")
+set(CMake_TEST_CUDA_CUPTI "ON" CACHE STRING "")
+set(CMake_TEST_CUDA_STANDARDS "03;11;14;17;20" CACHE STRING "")
+
+include("${CMAKE_CURRENT_LIST_DIR}/configure_external_test.cmake")

.gitlab/ci/env_cuda12.2_nvidia_clang.sh

@@ -0,0 +1,5 @@
+export CC=/usr/bin/clang-18
+export CXX=/usr/bin/clang++-18
+export CUDACXX=/usr/local/cuda/bin/nvcc
+export CUDAHOSTCXX=/usr/bin/clang++-18
+export CUDAFLAGS=--allow-unsupported-compiler

.gitlab/os-linux.yml

@@ -406,6 +406,12 @@
         CMAKE_CONFIGURATION: cuda12.2_nvidia
         CTEST_NO_WARNINGS_ALLOWED: 1
 
+.cuda12.2_nvidia_clang:
+    extends: .cuda12.2
+    variables:
+        CMAKE_CONFIGURATION: cuda12.2_nvidia_clang
+        CTEST_NO_WARNINGS_ALLOWED: 1
+
 .cuda12.2_clang:
     extends: .cuda12.2
     variables: