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QtCompilerOptimization.cmake
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if (QCC)
set(QT_CFLAGS_SSE2 "-msse2")
set(QT_CFLAGS_SSE3 "-msse3")
set(QT_CFLAGS_SSSE3 "-mssse3")
set(QT_CFLAGS_SSE4_1 "-msse4.1")
set(QT_CFLAGS_SSE4_2 "-msse4.2")
set(QT_CFLAGS_AVX "-mavx")
set(QT_CFLAGS_AVX2 "-mavx2")
set(QT_CFLAGS_ARCH_HASWELL "-march=haswell")
set(QT_CFLAGS_AESNI "-maes")
set(QT_CFLAGS_SHANI "-msha")
endif()
if (MSVC)
if (QT_64BIT)
# SSE2 is mandatory on 64-bit mode, so skip the option. It triggers:
# cl : Command line warning D9002 : ignoring unknown option '-arch:SSE2'
set(QT_CFLAGS_SSE2 "")
else()
set(QT_CFLAGS_SSE2 "-arch:SSE2")
endif()
set(QT_CFLAGS_SSE3 "${QT_CFLAGS_SSE2}")
set(QT_CFLAGS_SSSE3 "${QT_CFLAGS_SSE2}")
set(QT_CFLAGS_SSE4_1 "${QT_CFLAGS_SSE2}")
set(QT_CFLAGS_SSE4_2 "${QT_CFLAGS_SSE2}")
set(QT_CFLAGS_AESNI "${QT_CFLAGS_SSE2}")
set(QT_CFLAGS_SHANI "${QT_CFLAGS_SSE2}")
# FIXME to be Visual Studio version specific, like in mkspecs/common/msvc-version.conf
set(QT_CFLAGS_AVX "-arch:AVX")
set(QT_CFLAGS_AVX2 "-arch:AVX2")
set(QT_CFLAGS_F16C "-arch:AVX")
set(QT_CFLAGS_RDRND "")
set(QT_CFLAGS_RDSEED "")
set(QT_CFLAGS_AVX512F "-arch:AVX512")
set(QT_CFLAGS_AVX512ER "-arch:AVX512")
set(QT_CFLAGS_AVX512CD "-arch:AVX512")
set(QT_CFLAGS_AVX512PF "-arch:AVX512")
set(QT_CFLAGS_AVX512DQ "-arch:AVX512")
set(QT_CFLAGS_AVX512BW "-arch:AVX512")
set(QT_CFLAGS_AVX512VL "-arch:AVX512")
set(QT_CFLAGS_AVX512IFMA "-arch:AVX512")
set(QT_CFLAGS_AVX512VBMI "-arch:AVX512")
endif()
if(GCC OR CLANG)
set(QT_CFLAGS_SSE2 "-msse2")
set(QT_CFLAGS_SSE3 "-msse3")
set(QT_CFLAGS_SSSE3 "-mssse3")
set(QT_CFLAGS_SSE4_1 "-msse4.1")
set(QT_CFLAGS_SSE4_2 "-msse4.2")
set(QT_CFLAGS_F16C "-mf16c")
set(QT_CFLAGS_RDRND "-mrdrnd")
set(QT_CFLAGS_RDSEED "-mrdseed")
set(QT_CFLAGS_AVX "-mavx")
set(QT_CFLAGS_AVX2 "-mavx2")
set(QT_CFLAGS_ARCH_HASWELL "-march=haswell")
set(QT_CFLAGS_AVX512F "-mavx512f")
set(QT_CFLAGS_AVX512ER "-mavx512er")
set(QT_CFLAGS_AVX512CD "-mavx512cd")
set(QT_CFLAGS_AVX512PF "-mavx512pf")
set(QT_CFLAGS_AVX512DQ "-mavx512dq")
set(QT_CFLAGS_AVX512BW "-mavx512bw")
set(QT_CFLAGS_AVX512VL "-mavx512vl")
set(QT_CFLAGS_AVX512IFMA "-mavx512ifma")
set(QT_CFLAGS_AVX512VBMI "-mavx512vbmi")
set(QT_CFLAGS_AESNI "-maes")
set(QT_CFLAGS_SHANI "-msha")
if(NOT UIKIT AND NOT QT_64BIT)
set(QT_CFLAGS_NEON "-mfpu=neon")
endif()
set(QT_CFLAGS_MIPS_DSP "-mdsp")
set(QT_CFLAGS_MIPS_DSPR2 "-mdspr2")
endif()
if (winrt) # FIXME: Correct variable
set(QT_CFLAGS_SSE2 "-arch:SSE2")
set(QT_CFLAGS_SSE3 "-arch:SSE2")
set(QT_CFLAGS_SSSE3 "-arch:SSE2")
set(QT_CFLAGS_SSE4_1 "-arch:SSE2")
set(QT_CFLAGS_SSE4_2 "-arch:SSE2")
set(QT_CFLAGS_AVX "-arch:AVX")
set(QT_CFLAGS_AVX2 "-arch:AVX")
set(QT_CFLAGS_AESNI "-arch:SSE2")
set(QT_CFLAGS_SHANI "-arch:SSE2")
endif()
if (ICC)
if (MSVC)
set(QT_CFLAGS_SSE2 "-QxSSE2")
set(QT_CFLAGS_SSE3 "-QxSSE3")
set(QT_CFLAGS_SSSE3 "-QxSSSE3")
set(QT_CFLAGS_SSE4_1 "-QxSSE4.1")
set(QT_CFLAGS_SSE4_2 "-QxSSE4.2")
set(QT_CFLAGS_AVX "-QxAVX")
set(QT_CFLAGS_AVX2 "-QxCORE-AVX2")
set(QT_CFLAGS_AVX512F "-QxCOMMON-AVX512")
set(QT_CFLAGS_AVX512CD "-QxCOMMON-AVX512")
set(QT_CFLAGS_AVX512ER "-QxMIC-AVX512")
set(QT_CFLAGS_AVX512PF "-QxMIC-AVX512")
set(QT_CFLAGS_AVX512DQ "-QxCORE-AVX512")
set(QT_CFLAGS_AVX512BW "-QxCORE-AVX512")
set(QT_CFLAGS_AVX512VL "-QxCORE-AVX512")
set(QT_CFLAGS_F16C "${QT_CFLAGS_AVX2}")
set(QT_CFLAGS_AESNI "-QxSSE2")
set(QT_CFLAGS_RDRND "")
set(QT_CFLAGS_RDSEED "")
set(QT_CFLAGS_SHANI "-QxSSE4.2")
else()
set(QT_CFLAGS_SSE2 "-msse2")
set(QT_CFLAGS_SSE3 "-msse3")
set(QT_CFLAGS_SSSE3 "-mssse3")
set(QT_CFLAGS_SSE4_1 "-msse4.1")
set(QT_CFLAGS_SSE4_2 "-msse4.2")
set(QT_CFLAGS_AVX "-march=core-avx")
set(QT_CFLAGS_AVX2 "-march=core-avx2")
set(QT_CFLAGS_AVX512F "-march=broadwell -xCOMMON-AVX512")
set(QT_CFLAGS_AVX512CD "-march=broadwell -xCOMMON-AVX512")
set(QT_CFLAGS_AVX512ER "-march=knl")
set(QT_CFLAGS_AVX512PF "-march=knl")
set(QT_CFLAGS_AVX512DQ "-march=skylake-avx512")
set(QT_CFLAGS_AVX512BW "-march=skylake-avx512")
set(QT_CFLAGS_AVX512VL "-march=skylake-avx512")
set(QT_CFLAGS_AESNI "-maes")
set(QT_CFLAGS_F16C "${QT_CFLAGS_AVX2}")
set(QT_CFLAGS_RDRND "-mrdrnd")
set(QT_CFLAGS_RDSEED "-mrdseed")
set(QT_CFLAGS_SHANI "-msha")
endif()
endif()
# Fall through is important, so that more specific flags that might be missing are set by the
# previous base cases.
# This mirrors qmake's mkspecs QMAKE_CFLAGS_OPTIMIZE assignments (mostly).
#
# TODO: Missing mkspecs flags we don't handle below: win32-clang-g++, win32-clang-msvc, rtems-base
#
# gcc and clang base
if(GCC OR CLANG AND NOT WASM)
set(QT_CFLAGS_OPTIMIZE "-O2")
set(QT_CFLAGS_OPTIMIZE_FULL "-O3")
set(QT_CFLAGS_OPTIMIZE_DEBUG "-Og")
set(QT_CFLAGS_OPTIMIZE_SIZE "-Os")
if(CLANG)
set(QT_CFLAGS_OPTIMIZE_SIZE "-Oz")
endif()
endif()
# Flags that CMake might set, aka flags the compiler would see as valid values.
if(GCC OR CLANG OR QCC OR ICC)
set(QT_CFLAGS_OPTIMIZE_VALID_VALUES "-O0" "-O1" "-O2" "-O3" "-Os" "-Oz")
endif()
# Windows MSVC
if(MSVC)
set(QT_CFLAGS_OPTIMIZE "-O2")
set(QT_CFLAGS_OPTIMIZE_DEBUG "-Od")
set(QT_CFLAGS_OPTIMIZE_SIZE "-O1")
set(QT_CFLAGS_OPTIMIZE_VALID_VALUES "/O2" "/O1" "/Od" "/Ob0" "/Ob1" "/Ob2" "/O0" "-O0")
if(CLANG)
set(QT_CFLAGS_OPTIMIZE_FULL "/clang:-O3")
set(QT_CFLAGS_OPTIMIZE_SIZE "/clang:-Oz")
endif()
endif()
# Android Clang
if(CLANG AND ANDROID)
set(QT_CFLAGS_OPTIMIZE "-Oz")
set(QT_CFLAGS_OPTIMIZE_FULL "-Oz")
endif()
# qcc
if (QCC)
set(QT_CFLAGS_OPTIMIZE "-O2")
set(QT_CFLAGS_OPTIMIZE_FULL "-O3")
endif()
if(ICC)
if(MSVC)
set(QT_CFLAGS_OPTIMIZE_FULL "-O3")
else()
# Should inherit gcc base
set(QT_CFLAGS_OPTIMIZE "-O2")
set(QT_CFLAGS_OPTIMIZE_SIZE "-Os")
endif()
endif()
if(WASM)
set(QT_CFLAGS_OPTIMIZE "-O2")
set(QT_CFLAGS_OPTIMIZE_FULL "-O3")
set(QT_CFLAGS_OPTIMIZE_SIZE "-Os")
set(QT_CFLAGS_OPTIMIZE_DEBUG "-g2")
endif()