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2ce1d090c2
Add cmake support for CLC and ll asm language, the latter includes clang preprocessing stage. Add ctests to check for external function calls. v2: fix typos, style Signed-off-by: Jan Vesely <jan.vesely@rutgers.edu> Acked-by: Aaron Watry <awatry@gmail.com> Tested-by: Aaron Watry <awatry@gmail.com> Acked-by: Vedran Miletić <vedran@miletic.net> llvm-svn: 347667
57 lines
2.3 KiB
CMake
57 lines
2.3 KiB
CMake
if(CMAKE_LLAsm_COMPILER_FORCED)
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# The compiler configuration was forced by the user.
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# Assume the user has configured all compiler information.
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set(CMAKE_LLAsm_COMPILER_WORKS TRUE)
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return()
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endif()
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include(CMakeTestCompilerCommon)
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# Remove any cached result from an older CMake version.
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# We now store this in CMakeCCompiler.cmake.
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unset(CMAKE_LLAsm_COMPILER_WORKS CACHE)
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# This file is used by EnableLanguage in cmGlobalGenerator to
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# determine that that selected llvm assembler can actually compile
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# and link the most basic of programs. If not, a fatal error
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# is set and cmake stops processing commands and will not generate
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# any makefiles or projects.
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if(NOT CMAKE_LLAsm_COMPILER_WORKS)
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PrintTestCompilerStatus("LLAsm" "")
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file(WRITE ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeTmp/testLLAsmCompiler.ll
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"define i32 @test() {\n"
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"ret i32 0 }\n" )
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try_compile(CMAKE_LLAsm_COMPILER_WORKS ${CMAKE_BINARY_DIR}
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${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeTmp/testLLAsmCompiler.ll
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# We never generate executable so bypass the link step
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CMAKE_FLAGS -DCMAKE_LLAsm_LINK_EXECUTABLE='true'
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OUTPUT_VARIABLE __CMAKE_LLAsm_COMPILER_OUTPUT)
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# Move result from cache to normal variable.
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set(CMAKE_LLAsm_COMPILER_WORKS ${CMAKE_LLAsm_COMPILER_WORKS})
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unset(CMAKE_LLAsm_COMPILER_WORKS CACHE)
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set(LLAsm_TEST_WAS_RUN 1)
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endif()
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if(NOT CMAKE_LLAsm_COMPILER_WORKS)
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PrintTestCompilerStatus("LLAsm" " -- broken")
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file(APPEND ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeError.log
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"Determining if the LLAsm compiler works failed with "
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"the following output:\n${__CMAKE_LLAsm_COMPILER_OUTPUT}\n\n")
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message(FATAL_ERROR "The LLAsm compiler \"${CMAKE_LLAsm_COMPILER}\" "
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"is not able to compile a simple test program.\nIt fails "
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"with the following output:\n ${__CMAKE_LLAsm_COMPILER_OUTPUT}\n\n"
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"CMake will not be able to correctly generate this project.")
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else()
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if(LLAsm_TEST_WAS_RUN)
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PrintTestCompilerStatus("LLAsm" " -- works")
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file(APPEND ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeOutput.log
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"Determining if the LLAsm compiler works passed with "
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"the following output:\n${__CMAKE_LLAsm_COMPILER_OUTPUT}\n\n")
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endif()
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include(${CMAKE_PLATFORM_INFO_DIR}/CMakeLLAsmCompiler.cmake)
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endif()
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unset(__CMAKE_LLAsm_COMPILER_OUTPUT)
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