diff options
| author | Chris Bieneman <beanz@apple.com> | 2016-08-12 01:29:26 +0000 |
|---|---|---|
| committer | Chris Bieneman <beanz@apple.com> | 2016-08-12 01:29:26 +0000 |
| commit | 8a22938e76396fcbe2fc174686322e6e2e874ad4 (patch) | |
| tree | 02f65dad91da26b3cf9bf8cb62519289036c5032 /cmake/Modules/BuiltinTests.cmake | |
| parent | a521e597b28e48210f08331f8368923d4f5c4203 (diff) | |
[CMake] If the compiler supports _Atomic include atomic.c in builtins libraries
This fixes a long-standing TODO by implementing a compiler check for supporting the _Atomic keyword. If the _Atomic keyword is supported by the compiler we should include it in the builtin library sources.
git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@278454 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'cmake/Modules/BuiltinTests.cmake')
| -rw-r--r-- | cmake/Modules/BuiltinTests.cmake | 23 |
1 files changed, 20 insertions, 3 deletions
diff --git a/cmake/Modules/BuiltinTests.cmake b/cmake/Modules/BuiltinTests.cmake index c6da03023..6bbf44951 100644 --- a/cmake/Modules/BuiltinTests.cmake +++ b/cmake/Modules/BuiltinTests.cmake @@ -3,11 +3,15 @@ include(CMakeCheckCompilerFlagCommonPatterns) # This function takes an OS and a list of architectures and identifies the # subset of the architectures list that the installed toolchain can target. function(try_compile_only output) + cmake_parse_arguments(ARG "" "" "SOURCE;FLAGS" ${ARGN}) + if(NOT ARG_SOURCE) + set(ARG_SOURCE "int foo(int x, int y) { return x + y; }\n") + endif() set(SIMPLE_C ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/src.c) - file(WRITE ${SIMPLE_C} "int foo(int x, int y) { return x + y; }\n") + file(WRITE ${SIMPLE_C} "${ARG_SOURCE}\n") string(REGEX MATCHALL "<[A-Za-z0-9_]*>" substitutions ${CMAKE_C_COMPILE_OBJECT}) - string(REPLACE ";" " " extra_flags "${ARGN}") + string(REPLACE ";" " " extra_flags "${ARG_FLAGS}") set(test_compile_command "${CMAKE_C_COMPILE_OBJECT}") foreach(substitution ${substitutions}) @@ -63,7 +67,20 @@ endfunction() function(builtin_check_c_compiler_flag flag output) if(NOT DEFINED ${output}) message(STATUS "Performing Test ${output}") - try_compile_only(result ${flag}) + try_compile_only(result FLAGS ${flag}) + set(${output} ${result} CACHE INTERNAL "Compiler supports ${flag}") + if(${result}) + message(STATUS "Performing Test ${output} - Success") + else() + message(STATUS "Performing Test ${output} - Failed") + endif() + endif() +endfunction() + +function(builtin_check_c_compiler_source output source) + if(NOT DEFINED ${output}) + message(STATUS "Performing Test ${output}") + try_compile_only(result SOURCE ${source}) set(${output} ${result} CACHE INTERNAL "Compiler supports ${flag}") if(${result}) message(STATUS "Performing Test ${output} - Success") |