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build: Move PGO configuration to earlier in CMakeLists.txt

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The Profile-Guided Optimization configuration was previously placed at the
end of the CMakeLists.txt file, after all targets were already defined.
This was causing the PGO flags to have no effect on the build process.

This commit moves the PGO configuration to immediately after the initial
compiler flags setup and before any targets are defined, ensuring that
all targets will properly receive the PGO instrumentation or optimization
flags when those options are enabled.

This allows both CITRON_ENABLE_PGO_INSTRUMENT and CITRON_ENABLE_PGO_OPTIMIZE
to function correctly for all build targets.

Signed-off-by: Zephyron <zephyron@citron-emu.org>
This commit is contained in:
Zephyron 2025-03-13 17:03:21 +10:00
parent f2931c7566
commit d869045b77
1 changed files with 39 additions and 39 deletions
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78
CMakeLists.txt
View file

@ -17,6 +17,45 @@ if (MSVC)
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} /W3 /WX-") set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} /W3 /WX-")
endif() endif()
# PGO Configuration
option(CITRON_ENABLE_PGO_INSTRUMENT "Enable Profile-Guided Optimization instrumentation build" OFF)
option(CITRON_ENABLE_PGO_OPTIMIZE "Enable Profile-Guided Optimization optimization build" OFF)
if(MSVC)
if(CITRON_ENABLE_PGO_INSTRUMENT)
string(APPEND CMAKE_CXX_FLAGS_RELEASE " /GL /LTCG:PGINSTRUMENT")
string(APPEND CMAKE_EXE_LINKER_FLAGS_RELEASE " /LTCG:PGINSTRUMENT")
string(APPEND CMAKE_SHARED_LINKER_FLAGS_RELEASE " /LTCG:PGINSTRUMENT")
elseif(CITRON_ENABLE_PGO_OPTIMIZE)
string(APPEND CMAKE_CXX_FLAGS_RELEASE " /GL /LTCG:PGOPTIMIZE")
string(APPEND CMAKE_EXE_LINKER_FLAGS_RELEASE " /LTCG:PGOPTIMIZE")
string(APPEND CMAKE_SHARED_LINKER_FLAGS_RELEASE " /LTCG:PGOPTIMIZE")
endif()
else()
# GCC and Clang PGO flags
if(CITRON_ENABLE_PGO_INSTRUMENT)
if(CMAKE_CXX_COMPILER_ID MATCHES "Clang")
string(APPEND CMAKE_CXX_FLAGS_RELEASE " -fprofile-instr-generate")
string(APPEND CMAKE_EXE_LINKER_FLAGS_RELEASE " -fprofile-instr-generate")
string(APPEND CMAKE_SHARED_LINKER_FLAGS_RELEASE " -fprofile-instr-generate")
else() # GCC
string(APPEND CMAKE_CXX_FLAGS_RELEASE " -fprofile-generate")
string(APPEND CMAKE_EXE_LINKER_FLAGS_RELEASE " -fprofile-generate")
string(APPEND CMAKE_SHARED_LINKER_FLAGS_RELEASE " -fprofile-generate")
endif()
elseif(CITRON_ENABLE_PGO_OPTIMIZE)
if(CMAKE_CXX_COMPILER_ID MATCHES "Clang")
string(APPEND CMAKE_CXX_FLAGS_RELEASE " -fprofile-instr-use=default.profdata")
string(APPEND CMAKE_EXE_LINKER_FLAGS_RELEASE " -fprofile-instr-use=default.profdata")
string(APPEND CMAKE_SHARED_LINKER_FLAGS_RELEASE " -fprofile-instr-use=default.profdata")
else() # GCC
string(APPEND CMAKE_CXX_FLAGS_RELEASE " -fprofile-use")
string(APPEND CMAKE_EXE_LINKER_FLAGS_RELEASE " -fprofile-use")
string(APPEND CMAKE_SHARED_LINKER_FLAGS_RELEASE " -fprofile-use")
endif()
endif()
endif()
# Check if SDL2::SDL2 target exists; if not, create an alias # Check if SDL2::SDL2 target exists; if not, create an alias
if (TARGET SDL2::SDL2-static) if (TARGET SDL2::SDL2-static)
add_library(SDL2::SDL2 ALIAS SDL2::SDL2-static) add_library(SDL2::SDL2 ALIAS SDL2::SDL2-static)
@ -684,42 +723,3 @@ if(ENABLE_QT AND UNIX AND NOT APPLE)
install(FILES "dist/org.citron_emu.citron.metainfo.xml" install(FILES "dist/org.citron_emu.citron.metainfo.xml"
DESTINATION "share/metainfo") DESTINATION "share/metainfo")
endif() endif()
# PGO Configuration
option(CITRON_ENABLE_PGO_INSTRUMENT "Enable Profile-Guided Optimization instrumentation build" OFF)
option(CITRON_ENABLE_PGO_OPTIMIZE "Enable Profile-Guided Optimization optimization build" OFF)
if(MSVC)
if(CITRON_ENABLE_PGO_INSTRUMENT)
string(APPEND CMAKE_CXX_FLAGS_RELEASE " /GL /LTCG:PGINSTRUMENT")
string(APPEND CMAKE_EXE_LINKER_FLAGS_RELEASE " /LTCG:PGINSTRUMENT")
string(APPEND CMAKE_SHARED_LINKER_FLAGS_RELEASE " /LTCG:PGINSTRUMENT")
elseif(CITRON_ENABLE_PGO_OPTIMIZE)
string(APPEND CMAKE_CXX_FLAGS_RELEASE " /GL /LTCG:PGOPTIMIZE")
string(APPEND CMAKE_EXE_LINKER_FLAGS_RELEASE " /LTCG:PGOPTIMIZE")
string(APPEND CMAKE_SHARED_LINKER_FLAGS_RELEASE " /LTCG:PGOPTIMIZE")
endif()
else()
# GCC and Clang PGO flags
if(CITRON_ENABLE_PGO_INSTRUMENT)
if(CMAKE_CXX_COMPILER_ID MATCHES "Clang")
string(APPEND CMAKE_CXX_FLAGS_RELEASE " -fprofile-instr-generate")
string(APPEND CMAKE_EXE_LINKER_FLAGS_RELEASE " -fprofile-instr-generate")
string(APPEND CMAKE_SHARED_LINKER_FLAGS_RELEASE " -fprofile-instr-generate")
else() # GCC
string(APPEND CMAKE_CXX_FLAGS_RELEASE " -fprofile-generate")
string(APPEND CMAKE_EXE_LINKER_FLAGS_RELEASE " -fprofile-generate")
string(APPEND CMAKE_SHARED_LINKER_FLAGS_RELEASE " -fprofile-generate")
endif()
elseif(CITRON_ENABLE_PGO_OPTIMIZE)
if(CMAKE_CXX_COMPILER_ID MATCHES "Clang")
string(APPEND CMAKE_CXX_FLAGS_RELEASE " -fprofile-instr-use=default.profdata")
string(APPEND CMAKE_EXE_LINKER_FLAGS_RELEASE " -fprofile-instr-use=default.profdata")
string(APPEND CMAKE_SHARED_LINKER_FLAGS_RELEASE " -fprofile-instr-use=default.profdata")
else() # GCC
string(APPEND CMAKE_CXX_FLAGS_RELEASE " -fprofile-use")
string(APPEND CMAKE_EXE_LINKER_FLAGS_RELEASE " -fprofile-use")
string(APPEND CMAKE_SHARED_LINKER_FLAGS_RELEASE " -fprofile-use")
endif()
endif()
endif()