Merge topic 'check_language_propagate_hip_platform'

ce9c6d0994 HIP: Propagate CMAKE_HIP_PLATFORM from/to the test project in check_language
9ba3fc91e5 HIP: Really forward CMAKE_HIP_HOST_COMPILER in check_language(HIP)

Acked-by: Kitware Robot <kwrobot@kitware.com>
Merge-request: !9121

1 files changed, 26 insertions, 2 deletions

diff --git a/Modules/CheckLanguage.cmake b/Modules/CheckLanguage.cmake
index 94948b9..bad3590 100644
--- a/Modules/CheckLanguage.cmake
+++ b/Modules/CheckLanguage.cmake
@@ -41,6 +41,12 @@ or :command:`project` commands:
     not be set without also setting
     :variable:`CMAKE_<LANG>_COMPILER` to a NVCC compiler.
 
+  :variable:`CMAKE_<LANG>_PLATFORM <CMAKE_HIP_PLATFORM>`
+    This variable is set to the detected GPU platform when ``<lang>`` is ``HIP``.
+
+    If the variable is already set its value is always preserved. Only compatible values
+    will be considered for :variable:`CMAKE_<LANG>_COMPILER`.
+
 For example:
 
 .. code-block:: cmake
@@ -66,15 +72,23 @@ macro(check_language lang)
 
     set(extra_compiler_variables)
     if("${lang}" MATCHES "^(CUDA|HIP)$" AND NOT CMAKE_GENERATOR MATCHES "Visual Studio")
-      set(extra_compiler_variables "set(CMAKE_CUDA_HOST_COMPILER \\\"\${CMAKE_CUDA_HOST_COMPILER}\\\")")
+      set(extra_compiler_variables "set(CMAKE_${lang}_HOST_COMPILER \\\"\${CMAKE_${lang}_HOST_COMPILER}\\\")")
+    endif()
+
+    if("${lang}" STREQUAL "HIP")
+      list(APPEND extra_compiler_variables "set(CMAKE_${lang}_PLATFORM \\\"\${CMAKE_${lang}_PLATFORM}\\\")")
     endif()
 
+    list(TRANSFORM extra_compiler_variables PREPEND "\"")
+    list(TRANSFORM extra_compiler_variables APPEND "\\n\"")
+    list(JOIN extra_compiler_variables "\n  " extra_compiler_variables)
+
     set(_cl_content
       "cmake_minimum_required(VERSION ${CMAKE_VERSION})
 project(Check${lang} ${lang})
 file(WRITE \"\${CMAKE_CURRENT_BINARY_DIR}/result.cmake\"
   \"set(CMAKE_${lang}_COMPILER \\\"\${CMAKE_${lang}_COMPILER}\\\")\\n\"
-  \"${extra_compiler_variables}\\n\"
+  ${extra_compiler_variables}
   )"
     )
 
@@ -95,6 +109,11 @@ file(WRITE \"\${CMAKE_CURRENT_BINARY_DIR}/result.cmake\"
     else()
       set(_D_CMAKE_TOOLCHAIN_FILE "")
     endif()
+    if(CMAKE_${lang}_PLATFORM)
+      set(_D_CMAKE_LANG_PLATFORM "-DCMAKE_${lang}_PLATFORM:STRING=${CMAKE_${lang}_PLATFORM}")
+    else()
+      set(_D_CMAKE_LANG_PLATFORM "")
+    endif()
     execute_process(
       WORKING_DIRECTORY ${CMAKE_CURRENT_BINARY_DIR}/CMakeFiles/Check${lang}
       COMMAND ${CMAKE_COMMAND} . -G ${CMAKE_GENERATOR}
@@ -103,6 +122,7 @@ file(WRITE \"\${CMAKE_CURRENT_BINARY_DIR}/result.cmake\"
                                  ${_D_CMAKE_GENERATOR_INSTANCE}
                                  ${_D_CMAKE_MAKE_PROGRAM}
                                  ${_D_CMAKE_TOOLCHAIN_FILE}
+                                 ${_D_CMAKE_LANG_PLATFORM}
       OUTPUT_VARIABLE _cl_output
       ERROR_VARIABLE _cl_output
       RESULT_VARIABLE _cl_result
@@ -130,6 +150,10 @@ file(WRITE \"\${CMAKE_CURRENT_BINARY_DIR}/result.cmake\"
       mark_as_advanced(CMAKE_${lang}_HOST_COMPILER)
     endif()
 
+    if(CMAKE_${lang}_PLATFORM)
+      set(CMAKE_${lang}_PLATFORM "${CMAKE_${lang}_PLATFORM}" CACHE STRING "${lang} platform")
+      mark_as_advanced(CMAKE_${lang}_PLATFORM)
+    endif()
   endif()
 endmacro()