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pcsx2
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Adds PGO support. Profile data is stored in a folder called profile 

in the top-level source directory. The build folder should NOT be
transferred between computers when PGO is used, though I don't
see why anyone would be doing so anyway.

Also adds support for PGO and LTO to the build.sh script.
This commit is contained in:
np511 2016-12-05 10:57:53 -05:00 committed by Gregory Hainaut
parent 40ac87c9bc
commit b9d57843eb
2 changed files with 21 additions and 1 deletions
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6
build.sh
View File

@ -76,6 +76,9 @@ for ARG in "$@"; do
--extra ) flags="$flags -DEXTRA_PLUGINS=TRUE" ;;
--asan ) flags="$flags -DUSE_ASAN=TRUE" ;;
--gtk3 ) flags="$flags -DGTK3_API=TRUE" ;;
--lto ) flags="$flags -DUSE_LTO=TRUE" ;;
--pgo-optimize ) flags="$flags -DUSE_PGO_OPTIMIZE=TRUE" ;;
--pgo-generate ) flags="$flags -DUSE_PGO_GENERATE=TRUE" ;;
--no-simd ) flags="$flags -DDISABLE_ADVANCE_SIMD=TRUE" ;;
--cross-multilib ) flags="$flags -DCMAKE_TOOLCHAIN_FILE=$toolfile"; useCross=1; ;;
--no-cross-multilib ) useCross=0; ;;
@ -108,6 +111,9 @@ for ARG in "$@"; do
echo "--no-cross-multilib: Build a native PCSX2"
echo "--clang : Build with Clang/llvm"
echo "--intel : Build with ICC (Intel compiler)"
echo "--lto : Use Link Time Optimization"
echo "--pgo-generate : Executable will generate profiling information when run"
echo "--pgo-optimize : Use previously generated profiling information"
echo
echo "** Quality & Assurance (Please install the external tool) **"
echo "--asan : Enable Address sanitizer"

16
cmake/BuildParameters.cmake
View File

@ -296,6 +296,8 @@ endif()
# Set some default compiler flags
#-------------------------------------------------------------------------------
option(USE_LTO "Enable LTO optimization (will likely break the build)")
option(USE_PGO_GENERATE "Enable PGO optimization (generate profile)")
option(USE_PGO_OPTIMIZE "Enable PGO optimization (use profile)")
# Note1: Builtin strcmp/memcmp was proved to be slower on Mesa than stdlib version.
# Note2: float operation SSE is impacted by the PCSX2 SSE configuration. In particular, flush to zero denormal.
@ -352,6 +354,18 @@ else()
set(LTO_FLAGS "")
endif()
set(PGO_FLAGS "-fprofile-dir=${CMAKE_SOURCE_DIR}/profile")
if (USE_PGO_GENERATE)
message(WARNING "PGO has not been thoroughly tested. A bug is not impossible.")
set(PGO_FLAGS "${PGO_FLAGS} -fprofile-generate")
endif()
if(USE_PGO_OPTIMIZE)
message(WARNING "PGO has not been thoroughly tested. A bug is not impossible.")
set(PGO_FLAGS "${PGO_FLAGS} -fprofile-use")
endif()
if(CMAKE_BUILD_TYPE MATCHES "Debug")
set(DEBUG_FLAG "${DBG} -DPCSX2_DEVBUILD -DPCSX2_DEBUG -D_DEBUG")
elseif(CMAKE_BUILD_TYPE MATCHES "Devel")
@ -389,7 +403,7 @@ else()
endif()
# Note: -DGTK_DISABLE_DEPRECATED can be used to test a build without gtk deprecated feature. It could be useful to port to a newer API
set(DEFAULT_GCC_FLAG "${ARCH_FLAG} ${COMMON_FLAG} ${DEFAULT_WARNINGS} ${AGGRESSIVE_WARNING} ${HARDENING_FLAG} ${DEBUG_FLAG} ${ASAN_FLAG} ${OPTIMIZATION_FLAG} ${LTO_FLAGS} ${PLUGIN_SUPPORT}")
set(DEFAULT_GCC_FLAG "${ARCH_FLAG} ${COMMON_FLAG} ${DEFAULT_WARNINGS} ${AGGRESSIVE_WARNING} ${HARDENING_FLAG} ${DEBUG_FLAG} ${ASAN_FLAG} ${OPTIMIZATION_FLAG} ${LTO_FLAGS} ${PGO_FLAGS} ${PLUGIN_SUPPORT}")
# c++ only flags
set(DEFAULT_CPP_FLAG "${DEFAULT_GCC_FLAG} -std=c++11 -Wno-invalid-offsetof")