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| author | Daniel Podder <dpodder@gmail.com> | 2016-10-04 01:39:49 -0700 |
|---|---|---|
| committer | Jan Vorlicek <janvorli@microsoft.com> | 2016-10-04 10:39:49 +0200 |
| commit | 114b58869def96c720d0c2fd9b77ceccdc924b96 (patch) | |
| tree | 91445052c408051a7582b8a891b2166162e38bc6 /pgosupport.cmake | |
| parent | 4d6710d76ba222b1bf9aaef9b475a3229f827824 (diff) | |
| download | coreclr-114b58869def96c720d0c2fd9b77ceccdc924b96.tar.gz coreclr-114b58869def96c720d0c2fd9b77ceccdc924b96.tar.bz2 coreclr-114b58869def96c720d0c2fd9b77ceccdc924b96.zip | |
Add PGO GENPROFILE support to coreclr and clrjit (#7423)
* Add PGO GENPROFILE support to coreclr and clrjit
Update the cmake build system to enable support for Profile Guided
Optimization (PGO) on Windows, and enable this feature for two target
binaries (coreclr and clrjit).
With this change, toggle between instrumented and profile-optimized
settings for target binaries by passing pgoinstrument argument to the build.cmd
Assume profile-optimized mode by default. Fall back to regular non-PGO
optimized builds if profile data is not available.
Diffstat (limited to 'pgosupport.cmake')
| -rw-r--r-- | pgosupport.cmake | 68 |
1 files changed, 68 insertions, 0 deletions
diff --git a/pgosupport.cmake b/pgosupport.cmake new file mode 100644 index 0000000000..015eed6a0f --- /dev/null +++ b/pgosupport.cmake @@ -0,0 +1,68 @@ +function(clr_pgo_unknown_arch) + if (WIN32) + message(FATAL_ERROR "Only AMD64, ARM and I386 are supported for PGO") + else() + message(FATAL_ERROR "PGO not currently supported on the current platform") + endif() +endfunction(clr_pgo_unknown_arch) + +# Adds Profile Guided Optimization (PGO) flags to the current target +function(add_pgo TargetName) + if(WIN32) + set(ProfileFileName "${TargetName}.pgd") + endif(WIN32) + + file(TO_NATIVE_PATH + "${CLR_CMAKE_PACKAGES_DIR}/Microsoft.DotNet.OptimizationData.Coreclr/${CLR_CMAKE_TARGET_OS}.${CLR_CMAKE_TARGET_ARCH}/${ProfileFileName}" + ProfilePath + ) + + # Enable PGO only for optimized configs + set(ConfigTypeList RELEASE RELWITHDEBINFO) + + foreach(ConfigType IN LISTS ConfigTypeList) + set(LinkFlagsProperty "LINK_FLAGS_${ConfigType}") + if(CLR_CMAKE_PGO_INSTRUMENT) + if(WIN32) + set_property(TARGET ${TargetName} APPEND_STRING PROPERTY ${LinkFlagsProperty} "/LTCG /GENPROFILE") + endif(WIN32) + else(CLR_CMAKE_PGO_INSTRUMENT) + # If we don't have profile data availble, gracefully fall back to a non-PGO opt build + if(EXISTS ${ProfilePath}) + if(WIN32) + set_property(TARGET ${TargetName} APPEND_STRING PROPERTY ${LinkFlagsProperty} "/LTCG /USEPROFILE:PGD=${ProfilePath}") + endif(WIN32) + endif(EXISTS ${ProfilePath}) + endif(CLR_CMAKE_PGO_INSTRUMENT) + endforeach(ConfigType) +endfunction(add_pgo) + +if(WIN32) + if(CLR_CMAKE_PGO_INSTRUMENT) + # Instrumented PGO binaries on Windows introduce an additional runtime dependency, pgort<ver>.dll. + # Make sure we copy it next to the installed product to make it easier to redistribute the package. + + string(SUBSTRING ${CMAKE_VS_PLATFORM_TOOLSET} 1 -1 VS_PLATFORM_VERSION_NUMBER) + set(PGORT_FILENAME "pgort${VS_PLATFORM_VERSION_NUMBER}.dll") + + get_filename_component(PATH_CXX_ROOTDIR ${CMAKE_CXX_COMPILER} DIRECTORY) + + if(CLR_CMAKE_PLATFORM_ARCH_I386) + set(PATH_VS_PGORT_DLL "${PATH_CXX_ROOTDIR}/${PGORT_FILENAME}") + elseif(CLR_CMAKE_PLATFORM_ARCH_AMD64) + set(PATH_VS_PGORT_DLL "${PATH_CXX_ROOTDIR}/../amd64/${PGORT_FILENAME}") + elseif(CLR_CMAKE_PLATFORM_ARCH_ARM) + set(PATH_VS_PGORT_DLL "${PATH_CXX_ROOTDIR}/../arm/${PGORT_FILENAME}") + else() + clr_pgo_unknown_arch() + endif() + + if (EXISTS ${PATH_VS_PGORT_DLL}) + message(STATUS "Found PGO runtime: ${PATH_VS_PGORT_DLL}") + install(PROGRAMS ${PATH_VS_PGORT_DLL} DESTINATION .) + else() + message(FATAL_ERROR "file not found: ${PATH_VS_PGORT_DLL}") + endif() + + endif(CLR_CMAKE_PGO_INSTRUMENT) +endif(WIN32) |