Merge pull request #316 from emankov/cmake

[HIPIFY][cmake] Version compatibility checks of CUDA and clang are added

hipamd/hipify-clang/CMakeLists.txt

@@ -65,7 +65,7 @@ set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -DHIPIFY_CLANG_RES=\\\"${LLVM_LIBRARY_DI
 install(TARGETS hipify-clang DESTINATION bin)
 
 if (HIPIFY_CLANG_TESTS)
-    find_package(PythonInterp 2.7 REQUIRED EXACT)
+    find_package(PythonInterp 2.7 REQUIRED)
 
     function (require_program PROGRAM_NAME)
         find_program(FOUND_${PROGRAM_NAME} ${PROGRAM_NAME})
@@ -85,6 +85,23 @@ if (HIPIFY_CLANG_TESTS)
     # Populates CUDA_TOOLKIT_ROOT_DIR, which is then applied to the lit config to give the
     # value of --cuda-path for the test runs.
     find_package(CUDA REQUIRED)
+    if ((CUDA_VERSION VERSION_LESS "7.0") OR (LLVM_PACKAGE_VERSION VERSION_LESS "3.8") OR
+        (CUDA_VERSION VERSION_GREATER "7.5" AND LLVM_PACKAGE_VERSION VERSION_LESS "4.0") OR
+        (CUDA_VERSION VERSION_GREATER "8.0" AND LLVM_PACKAGE_VERSION VERSION_LESS "6.0") OR
+        (CUDA_VERSION VERSION_GREATER "9.0" AND LLVM_PACKAGE_VERSION VERSION_LESS "7.0"))
+        message(SEND_ERROR "CUDA ${CUDA_VERSION} is not supported by clang ${LLVM_PACKAGE_VERSION}.")
+        if (CUDA_VERSION VERSION_LESS "7.0")
+            message(STATUS "Please install CUDA 7.0 or higher.")
+        elseif ((CUDA_VERSION VERSION_EQUAL "7.0") OR (CUDA_VERSION VERSION_EQUAL "7.5"))
+            message(STATUS "Please install clang 3.8 or higher.")
+        elseif (CUDA_VERSION VERSION_EQUAL "8.0")
+            message(STATUS "Please install clang 4.0 or higher.")
+        elseif (CUDA_VERSION VERSION_EQUAL "9.0")
+            message(STATUS "Please install clang 6.0 or higher.")
+        elseif (CUDA_VERSION VERSION_EQUAL "9.1")
+            message(STATUS "Please install clang 7.0 or higher.")
+        endif()
+    endif()
 
     configure_file(
         ${CMAKE_CURRENT_LIST_DIR}/../tests/hipify-clang/lit.site.cfg.in