[Libomptarget] Fix tests after deleting the next-gen plugins

[jhuber6]

Summary

The next-gen plugins didn't correctly configure tests and were never
actually being run. Since deleting the old plugin we stopped getting
libomptarget tests. This patch fixes the issue and allows the targets
to be built

openmp/libomptarget/plugins-nextgen/CMakeLists.txt

if(LIBOMPTARGET_DEP_LIBFFI_FOUND)
     set_target_properties("omptarget.rtl.${tmachine_libname}" PROPERTIES
       INSTALL_RPATH "$ORIGIN" BUILD_RPATH "$ORIGIN:${CMAKE_CURRENT_BINARY_DIR}/.."
       CXX_VISIBILITY_PRESET protected)
 
     target_include_directories( "omptarget.rtl.${tmachine_libname}" PRIVATE
       ${LIBOMPTARGET_INCLUDE_DIR}
       ${LIBOMPTARGET_DEP_LIBFFI_INCLUDE_DIR})
 
-    list(APPEND LIBOMPTARGET_TESTED_PLUGINS
-      "omptarget.rtl.${tmachine_libname}")
+    list(APPEND LIBOMPTARGET_TESTED_PLUGINS "omptarget.rtl.${tmachine_libname}")
+    set(LIBOMPTARGET_TESTED_PLUGINS
+        "${LIBOMPTARGET_TESTED_PLUGINS}" PARENT_SCOPE)
+    set(LIBOMPTARGET_SYSTEM_TARGETS 
+        "${LIBOMPTARGET_SYSTEM_TARGETS} ${tmachine_triple} " PARENT_SCOPE)
+    set(LIBOMPTARGET_SYSTEM_TARGETS 
+        "${LIBOMPTARGET_SYSTEM_TARGETS} ${tmachine_triple}-LTO" PARENT_SCOPE)
 
   else(LIBOMPTARGET_DEP_LIBFFI_FOUND)
     libomptarget_say("Not building ${tmachine_name} NextGen offloading plugin: libffi dependency not found.")
   endif(LIBOMPTARGET_DEP_LIBFFI_FOUND)
 else()
   libomptarget_say("Not building ${tmachine_name} NextGen offloading plugin: machine not found in the system.")
 endif()
 endmacro()

openmp/libomptarget/plugins-nextgen/amdgpu/CMakeLists.txt

 
 target_include_directories(
   omptarget.rtl.amdgpu
   PRIVATE
   ${LIBOMPTARGET_INCLUDE_DIR}
   ${CMAKE_CURRENT_SOURCE_DIR}/utils
 )
 
+# Configure testing for the AMDGPU plugin. We will build tests if we could a
+# functional AMD GPU on the system, or if manually specifies by the user.
+option(LIBOMPTARGET_FORCE_AMDGPU_TESTS "Build AMDGPU libomptarget tests" OFF)
+if (LIBOMPTARGET_FOUND_AMDGPU_GPU OR LIBOMPTARGET_FORCE_AMDGPU_TESTS)
+  # Report to the parent scope that we are building a plugin for amdgpu
+  set(LIBOMPTARGET_SYSTEM_TARGETS 
+      "${LIBOMPTARGET_SYSTEM_TARGETS} amdgcn-amd-amdhsa" PARENT_SCOPE)
+  list(APPEND LIBOMPTARGET_TESTED_PLUGINS "omptarget.rtl.amdgpu")
+  set(LIBOMPTARGET_TESTED_PLUGINS "${LIBOMPTARGET_TESTED_PLUGINS}" PARENT_SCOPE)
+else()
+  libomptarget_say("Not generating AMDGPU tests, no supported devices detected."
+                   " Use 'LIBOMPTARGET_FORCE_AMDGPU_TESTS' to override.")
+  return()
+endif()
 
 # Install plugin under the lib destination folder.
 install(TARGETS omptarget.rtl.amdgpu LIBRARY DESTINATION "${OPENMP_INSTALL_LIBDIR}")
 set_target_properties(omptarget.rtl.amdgpu PROPERTIES
   INSTALL_RPATH "$ORIGIN" BUILD_RPATH "$ORIGIN:${CMAKE_CURRENT_BINARY_DIR}/.."
   CXX_VISIBILITY_PRESET protected)

openmp/libomptarget/plugins-nextgen/cuda/CMakeLists.txt

 
 # Define debug prefix. TODO: This should be automatized in the Debug.h but it
 # requires changing the original plugins.
 target_compile_definitions(omptarget.rtl.cuda PRIVATE TARGET_NAME="CUDA")
 target_compile_definitions(omptarget.rtl.cuda PRIVATE DEBUG_PREFIX="TARGET CUDA RTL")
 
 target_include_directories(omptarget.rtl.cuda PRIVATE ${LIBOMPTARGET_INCLUDE_DIR})
 
+# Configure testing for the CUDA plugin. We will build tests if we could a
+# functional NVIDIA GPU on the system, or if manually specifies by the user.
+option(LIBOMPTARGET_FORCE_NVIDIA_TESTS "Build NVIDIA libomptarget tests" OFF)
+if (LIBOMPTARGET_FOUND_NVIDIA_GPU OR LIBOMPTARGET_FORCE_NVIDIA_TESTS)
+  libomptarget_say("Enable tests using CUDA plugin")
+  set(LIBOMPTARGET_SYSTEM_TARGETS 
+      "${LIBOMPTARGET_SYSTEM_TARGETS} nvptx64-nvidia-cuda" PARENT_SCOPE)
+  set(LIBOMPTARGET_SYSTEM_TARGETS 
+      "${LIBOMPTARGET_SYSTEM_TARGETS} nvptx64-nvidia-cuda-LTO" PARENT_SCOPE)
+  list(APPEND LIBOMPTARGET_TESTED_PLUGINS "omptarget.rtl.cuda")
+  set(LIBOMPTARGET_TESTED_PLUGINS "${LIBOMPTARGET_TESTED_PLUGINS}" PARENT_SCOPE)
+else()
+  libomptarget_say("Not generating NVIDIA tests, no supported devices detected."
+                   " Use 'LIBOMPTARGET_FORCE_NVIDIA_TESTS' to override.")
+endif()
+
 # Install plugin under the lib destination folder.
 install(TARGETS omptarget.rtl.cuda LIBRARY DESTINATION "${OPENMP_INSTALL_LIBDIR}")
 set_target_properties(omptarget.rtl.cuda PROPERTIES
   INSTALL_RPATH "$ORIGIN" BUILD_RPATH "$ORIGIN:${CMAKE_CURRENT_BINARY_DIR}/.."
   CXX_VISIBILITY_PRESET protected)