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242275b349
Add the ability to plug a cache on the LTO API. I tried to write such that a linker implementation can control the cache backend. This is intrusive and I'm not totally happy with it, but I can't figure out a better design right now. Differential Revision: https://reviews.llvm.org/D23599 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@279576 91177308-0d34-0410-b5e6-96231b3b80d8
65 lines
1.8 KiB
CMake
65 lines
1.8 KiB
CMake
# Figure out if we can track VC revisions.
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function(find_first_existing_file out_var)
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foreach(file ${ARGN})
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if(EXISTS "${file}")
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set(${out_var} "${file}" PARENT_SCOPE)
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return()
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endif()
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endforeach()
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endfunction()
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macro(find_first_existing_vc_file out_var path)
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find_first_existing_file(${out_var}
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"${path}/.git/logs/HEAD" # Git
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"${path}/.svn/wc.db" # SVN 1.7
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"${path}/.svn/entries" # SVN 1.6
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)
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endmacro()
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find_first_existing_vc_file(llvm_vc "${LLVM_MAIN_SRC_DIR}")
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# The VC revision include that we want to generate.
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set(version_inc "${CMAKE_CURRENT_BINARY_DIR}/LLVMLTORevision.h")
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set(get_svn_script "${LLVM_MAIN_SRC_DIR}/cmake/modules/GenerateVersionFromCVS.cmake")
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if(DEFINED llvm_vc)
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# Create custom target to generate the VC revision include.
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add_custom_command(OUTPUT "${version_inc}"
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DEPENDS "${llvm_vc}" "${get_svn_script}"
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COMMAND
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${CMAKE_COMMAND} "-DSOURCE_DIR=${LLVM_MAIN_SRC_DIR}"
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"-DNAME=LLVM_REVISION"
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"-DHEADER_FILE=${version_inc}"
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-P "${get_svn_script}")
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# Mark the generated header as being generated.
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set_source_files_properties("${version_inc}"
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PROPERTIES GENERATED TRUE
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HEADER_FILE_ONLY TRUE)
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# Tell Version.cpp that it needs to build with -DHAVE_SVN_VERSION_INC.
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set_source_files_properties(Version.cpp
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PROPERTIES COMPILE_DEFINITIONS "HAVE_SVN_VERSION_INC")
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else()
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# Not producing a VC revision include.
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set(version_inc)
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endif()
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add_llvm_library(LLVMLTO
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Caching.cpp
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LTO.cpp
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LTOBackend.cpp
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LTOModule.cpp
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LTOCodeGenerator.cpp
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UpdateCompilerUsed.cpp
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ThinLTOCodeGenerator.cpp
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${version_inc}
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ADDITIONAL_HEADER_DIRS
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${LLVM_MAIN_INCLUDE_DIR}/llvm/LTO
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)
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add_dependencies(LLVMLTO intrinsics_gen)
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