mirror of
https://github.com/Xaymar/obs-StreamFX
synced 2024-11-11 06:15:05 +00:00
cmake: Split optimizations by platform and compiler
Also make fast math optional on all platforms and compilers.
This commit is contained in:
Michael Fabian 'Xaymar' Dirks
parent
a5b20c85b0
commit
afdddd9381
1 changed files with 75 additions and 21 deletions
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@ -34,7 +34,7 @@ if("${CMAKE_SOURCE_DIR}" STREQUAL "${CMAKE_CURRENT_LIST_DIR}")
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set(PREFIX "")
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else()
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set(GROUPED ON)
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set(PREFIX "StreamFX_")
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set(PREFIX "StreamFX_")
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if(GROUPED AND (TARGET libobs))
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set(STANDALONE OFF)
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endif()
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@ -316,6 +316,7 @@ set(${PREFIX}ENABLE_PROFILING OFF CACHE BOOL "Enable CPU and GPU performance tra
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## Compile/Link Related
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set(${PREFIX}ENABLE_LTO ${D_HAS_IPO} CACHE BOOL "Enable Link Time Optimization for faster and smaller binaries.")
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set(${PREFIX}ENABLE_FASTMATH ON CACHE BOOL "Enable fast math optimizations, which sacrifice precision and stability.")
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if(D_PLATFORM_ARCH_X86)
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set(${PREFIX}TARGET_X86_64_V4 OFF CACHE BOOL "Target x86-64-v4 (x86-64-v3, AVX512F, AVX512BW, AVX512CD, AVX512DQ, AVX512VL).")
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set(${PREFIX}TARGET_X86_64_V3 OFF CACHE BOOL "Target x86-64-v3 (x86-64-v2, AVX, AVX2, BMI1, BMI2, F16C, FMA, LZCNT, MOVBE, OSXSAVE).")
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@ -1971,7 +1972,7 @@ if(${PREFIX}ENABLE_LTO)
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endif()
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# C/C++ Compiler Adjustments
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if(CMAKE_CXX_COMPILER_ID STREQUAL "MSVC" OR (WIN32 AND CMAKE_CXX_COMPILER_ID STREQUAL "Clang"))
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if(D_PLATFORM_WINDOWS AND ((CMAKE_CXX_COMPILER_ID STREQUAL "MSVC") OR (CMAKE_CXX_COMPILER_ID STREQUAL "Clang")))
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# MSVC/ClangCL
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message(STATUS "${LOGPREFIX} Applying custom flags for MSVC style build.")
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@ -1994,7 +1995,7 @@ if(CMAKE_CXX_COMPILER_ID STREQUAL "MSVC" OR (WIN32 AND CMAKE_CXX_COMPILER_ID STR
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foreach(WARN ${DISABLED_WARNINGS})
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target_compile_options(${PROJECT_NAME} PRIVATE "${WARN}")
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endforeach()
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# - Require enabled instruction sets.
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if(D_PLATFORM_ARCH_X86)
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if(${PREFIX}TARGET_X86_64_V4)
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@ -2014,7 +2015,18 @@ if(CMAKE_CXX_COMPILER_ID STREQUAL "MSVC" OR (WIN32 AND CMAKE_CXX_COMPILER_ID STR
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message(STATUS "${LOGPREFIX} Targeting x86-64.")
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endif()
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endif()
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# - Use fast unordered math if possible.
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if(${PREFIX}ENABLE_FASTMATH)
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target_compile_options(${PROJECT_NAME} PRIVATE "/fp:fast")
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else()
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target_compile_options(${PROJECT_NAME} PRIVATE "/fp:precise")
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if(MSVC_VERSION GREATER 1930)
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# Keep original behavior in VS2022 and up.
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target_compile_options(${PROJECT_NAME} PRIVATE "/fp:contract")
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endif()
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endif()
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# - Disable incremental builds
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target_compile_options(${PROJECT_NAME} PRIVATE "/INCREMENTAL:NO")
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@ -2026,10 +2038,9 @@ if(CMAKE_CXX_COMPILER_ID STREQUAL "MSVC" OR (WIN32 AND CMAKE_CXX_COMPILER_ID STR
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# - Enable updated __cplusplus macro
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target_compile_options(${PROJECT_NAME} PRIVATE "/Zc:__cplusplus")
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# - Generic Optimizations for Release/RelWithDebInfo/MinSizeRel
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set(FLAGS
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"/fp:fast"
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"/OPT:REF"
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"/OPT:ICF=3"
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"/GL"
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@ -2041,38 +2052,34 @@ if(CMAKE_CXX_COMPILER_ID STREQUAL "MSVC" OR (WIN32 AND CMAKE_CXX_COMPILER_ID STR
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foreach(FLAG ${FLAGS})
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target_compile_options(${PROJECT_NAME} PRIVATE "$<$<CONFIG:Release,RelWithDebInfo,MinSizeRel>:${FLAG}>")
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endforeach()
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elseif(CMAKE_CXX_COMPILER_ID STREQUAL "Clang" OR CMAKE_CXX_COMPILER_ID STREQUAL "AppleClang" OR CMAKE_CXX_COMPILER_ID STREQUAL "GNU")
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# Clang/AppleClang/GNU
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message(STATUS "${LOGPREFIX} Applying custom flags for GNU style build.")
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elseif(D_PLATFORM_LINUX AND ((CMAKE_CXX_COMPILER_ID STREQUAL "Clang") OR (CMAKE_CXX_COMPILER_ID STREQUAL "GNU")))
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# GCC/Clang
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message(STATUS "${LOGPREFIX} Applying custom flags for GCC/Clang style build.")
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# - Enable most useful warnings.
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target_compile_options(${PROJECT_NAME} PRIVATE "-Wall")
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target_compile_options(${PROJECT_NAME} PRIVATE "-Wextra")
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# - Require enabled instruction sets.
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if(${PREFIX}TARGET_NATIVE)
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target_compile_options(${PROJECT_NAME} PRIVATE
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target_compile_options(${PROJECT_NAME} PRIVATE
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"-march=native"
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"-mtune=native"
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)
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message(WARNING "${LOGPREFIX} Targeting native architecture. Binaries will not be distributable to other systems!")
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elseif(D_PLATFORM_ARCH_X86)
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if(${PREFIX}TARGET_X86_64_V4)
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target_compile_options(${PROJECT_NAME} PRIVATE
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target_compile_options(${PROJECT_NAME} PRIVATE
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"-march=x86-64-v4"
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"-mtune=generic"
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)
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message(STATUS "${LOGPREFIX} Targeting x86-64-v4.")
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elseif(${PREFIX}TARGET_X86_64_V3)
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target_compile_options(${PROJECT_NAME} PRIVATE
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target_compile_options(${PROJECT_NAME} PRIVATE
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"-march=x86-64-v3"
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"-mtune=generic"
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)
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message(STATUS "${LOGPREFIX} Targeting x86-64-v3.")
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elseif(${PREFIX}TARGET_X86_64_V2_EX)
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target_compile_options(${PROJECT_NAME} PRIVATE
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target_compile_options(${PROJECT_NAME} PRIVATE
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"-march=x86-64-v2"
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"-mtune=generic"
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"-mavx"
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"-mbmi2"
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"-mbmi"
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@ -2086,18 +2093,65 @@ elseif(CMAKE_CXX_COMPILER_ID STREQUAL "Clang" OR CMAKE_CXX_COMPILER_ID STREQUAL
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elseif(${PREFIX}TARGET_X86_64_V2)
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target_compile_options(${PROJECT_NAME} PRIVATE
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"-march=x86-64-v2"
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"-mtune=generic"
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)
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message(STATUS "${LOGPREFIX} Targeting x86-64-v2.")
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elseif(${PREFIX}TARGET_X86_64)
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target_compile_options(${PROJECT_NAME} PRIVATE
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target_compile_options(${PROJECT_NAME} PRIVATE
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"-march=x86-64"
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"-mtune=generic"
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)
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message(STATUS "${LOGPREFIX} Targeting x86-64.")
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endif()
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if(CMAKE_CXX_COMPILER_ID STREQUAL "GNU")
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target_compile_options(${PROJECT_NAME} PRIVATE
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"-mtune=generic"
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)
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else()
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target_compile_options(${PROJECT_NAME} PRIVATE
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"-mtune=x86-64"
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)
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endif()
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endif()
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# - Use fast unordered math if possible.
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if(${PREFIX}ENABLE_FASTMATH)
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if(CMAKE_CXX_COMPILER_ID STREQUAL "GNU")
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target_compile_options(${PROJECT_NAME} PRIVATE
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"-ffast-math"
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)
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else()
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target_compile_options(${PROJECT_NAME} PRIVATE
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"-ffp-model=fast"
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"-ffp-contract=on"
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)
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endif()
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else()
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target_compile_options(${PROJECT_NAME} PRIVATE
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"-ffp-model=precise"
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"-ffp-contract=on"
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)
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endif()
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# - Don't export by default, require attributes.
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# add_compile_options("-fvisibility=hidden")
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elseif(D_PLATFORM_MAC AND (CMAKE_CXX_COMPILER_ID STREQUAL "AppleClang"))
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# AppleClang
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message(STATUS "${LOGPREFIX} Applying custom flags for AppleClang style build.")
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# - Enable most useful warnings.
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target_compile_options(${PROJECT_NAME} PRIVATE "-Wall")
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target_compile_options(${PROJECT_NAME} PRIVATE "-Wextra")
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# - Require enabled instruction sets.
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if(${PREFIX}TARGET_NATIVE)
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target_compile_options(${PROJECT_NAME} PRIVATE
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"-march=native"
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)
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message(WARNING "${LOGPREFIX} Targeting native architecture. Binaries will not be distributable to other systems!")
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endif()
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# - Use fast unordered math if possible.
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# FIXME: Appears to not be supported.
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# - Don't export by default, require attributes.
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# add_compile_options("-fvisibility=hidden")
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endif()
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