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kepka
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Allow user to enable or disable interpocedural optimizations. 

IPO optimizations will be disabled by default. To enable you need to
forward cmake build flag -DENABLE_IPO:BOOL=ON.

Signed-off-by: Vitaly Zaitsev <vitaly@easycoding.org>
This commit is contained in:
Vitaly Zaitsev 2019-03-31 16:37:13 +02:00
parent 9fc007889b
commit f792920622
2 changed files with 14 additions and 11 deletions
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1
CMakeLists.txt
View File

@ -95,6 +95,7 @@ if (CCACHE)
set(CMAKE_CXX_COMPILER_LAUNCHER ${CCACHE})
endif()
option(ENABLE_IPO "Enable IPO optimizations." OFF)
option(BUILD_DOC "Build documentation" OFF)
mark_as_advanced(BUILD_DOC)

24
Telegram/CMakeLists.txt
View File

@ -696,19 +696,21 @@ if (LINUX)
endif()
# Enable LTO optimizations...
include(CheckIPOSupported)
check_ipo_supported(RESULT ipo_result OUTPUT ipo_output)
if(ENABLE_IPO)
include(CheckIPOSupported)
check_ipo_supported(RESULT ipo_result OUTPUT ipo_output)
if(ipo_result)
message(STATUS "IPO optimizations enabled.")
if(LINUX AND (CMAKE_CXX_COMPILER_ID MATCHES "GNU"))
set(CMAKE_AR "/usr/bin/gcc-ar")
set(CMAKE_RANLIB "/usr/bin/gcc-ranlib")
set(CMAKE_NM "/usr/bin/gcc-nm")
if(ipo_result)
message(STATUS "IPO optimizations enabled.")
if(LINUX AND (CMAKE_CXX_COMPILER_ID MATCHES "GNU"))
set(CMAKE_AR "/usr/bin/gcc-ar")
set(CMAKE_RANLIB "/usr/bin/gcc-ranlib")
set(CMAKE_NM "/usr/bin/gcc-nm")
endif()
set_property(TARGET Kepka PROPERTY INTERPROCEDURAL_OPTIMIZATION TRUE)
else()
message(WARNING "IPO is not supported: ${ipo_output}")
endif()
set_property(TARGET Kepka PROPERTY INTERPROCEDURAL_OPTIMIZATION TRUE)
else()
message(WARNING "IPO is not supported: ${ipo_output}")
endif()
##================================================