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Conditionally enable IPO

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Put corresponding functionality in `cmake/ipo.cmake`. This directory
allows for future further separation of build concerns.
This commit is contained in:
Tom Lankhorst 2019-01-27 12:56:36 +01:00
parent 06600440fe
commit 87d9932792
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GPG key ID: 52BF82B885592251
4 changed files with 30 additions and 16 deletions
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12
CMakeLists.txt
View file

@ -6,14 +6,6 @@ endif()
project(openrct2 CXX)
include(CheckIPOSupported)
check_ipo_supported(RESULT IPO_SUPPORTED OUTPUT IPO_LOG)
if(IPO_SUPPORTED)
message(INFO "IPO supported")
else()
message(WARNING "IPO not supported: ${IPO_LOG}")
endif()
if (NOT MSVC)
include(FindPkgConfig)
endif ()
@ -60,6 +52,10 @@ if (PORTABLE OR WIN32)
set(CMAKE_INSTALL_RPATH "$ORIGIN")
endif ()
include(cmake/ipo.cmake)
list(APPEND IPO_ENABLED_BUILDS Release RelWithDebInfo MinSizeRel)
ipo_enable("${IPO_ENABLED_BUILDS}")
# Describe current version in terms of closest tag
execute_process(
COMMAND git describe HEAD

24
cmake/ipo.cmake Normal file
View file

@ -0,0 +1,24 @@
# Helpers for inter-procedural optimizations (IPO)
# Enabled IPO for a LIST of CMake build types.
# Provides IPO_BUILD_ENABLED to the parent scope.
function(ipo_enable IPO_ENABLED_BUILDS)
include(CheckIPOSupported)
check_ipo_supported(RESULT IPO_SUPPORTED OUTPUT IPO_LOG)
set(IPO_BUILD_ENABLED OFF PARENT_SCOPE)
if(IPO_SUPPORTED AND ${CMAKE_BUILD_TYPE} IN_LIST IPO_ENABLED_BUILDS)
message(STATUS "IPO supported and enabled in ${CMAKE_BUILD_TYPE}.")
set(IPO_BUILD_ENABLED ON PARENT_SCOPE)
elseif(NOT IPO_SUPPORTED AND ${CMAKE_BUILD_TYPE} IN_LIST IPO_ENABLED_BUILDS)
message(STATUS "IPO not supported: ${IPO_LOG}.")
endif()
endfunction()
# Sets appropriate IPO properties on target _target
# if IPO is supported and enabled for the current build.
function(ipo_set_target_properties _target)
if(IPO_BUILD_ENABLED)
set_property(TARGET ${_target} PROPERTY INTERPROCEDURAL_OPTIMIZATION TRUE)
endif()
endfunction()

5
src/openrct2-cli/CMakeLists.txt
View file

@ -14,10 +14,7 @@ file(GLOB_RECURSE OPENRCT2_CLI_SOURCES
set (PROJECT openrct2-cli)
project(${PROJECT} CXX)
add_executable(${PROJECT} ${OPENRCT2_CLI_SOURCES})
if(IPO_SUPPORTED)
set_property(TARGET ${PROJECT} PROPERTY INTERPROCEDURAL_OPTIMIZATION TRUE)
endif()
ipo_set_target_properties(${PROJECT})
target_link_libraries(${PROJECT} "libopenrct2")

5
src/openrct2-ui/CMakeLists.txt
View file

@ -49,10 +49,7 @@ endif ()
set (PROJECT openrct2)
project(${PROJECT} CXX)
add_executable(${PROJECT} ${OPENRCT2_UI_SOURCES} ${OPENRCT2_UI_MM_SOURCES})
if(IPO_SUPPORTED)
set_property(TARGET ${PROJECT} PROPERTY INTERPROCEDURAL_OPTIMIZATION TRUE)
endif()
ipo_set_target_properties(${PROJECT})
target_link_libraries(${PROJECT} "libopenrct2"
${SDL2_LDFLAGS}