cd652500af
This patch adds a new config option to qmake to enable full optimization where it makes sense. This currently is supported on all gcc like compilers by exchanging -O2 for -O3. In qtbase it is used to enable full optimizations on qtcore and qtgui and in a later patch can be used to replace similar existing logic in QtWebKit's WTF and JavaScriptCore modules. This fixes a performance regression from gcc 4.7 to 4.8 in the software renderer. An aliasing error in qregion.cpp which was exposed by more aggresive optimization has been solved as well. Change-Id: Ic2c6c41b79cb3846212b40e7bcc11ff492beb27f Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@digia.com>
79 lines
2.6 KiB
Plaintext
79 lines
2.6 KiB
Plaintext
#
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# This file is used as a basis for the following compilers:
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#
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# - The GNU C++ compiler (g++)
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# - LLVM
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# - Clang
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#
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# Platform-specific options shared by these compilers are put into:
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#
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# - gcc-base-mac.conf
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# - gcc-base-unix.conf
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#
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# These base files are then combined with configurations for each compiler:
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#
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# - g++-base.conf
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# - g++-macx.conf
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# - g++-unix.conf
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# - llvm.conf
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# - clang.conf
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#
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# The combination happens in the top level mkspec, by including a platform-
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# specific version of the base-file, for example gcc-base-mac.conf, and then
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# a (possibly platform-specific) version of the actual compiler configuration,
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# for example g++-macx.conf.
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#
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# If you are making changes to any of these files, please consider the
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# possible effect it may have due to these include-rules, and whether it
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# might make more sense to share the rule or make it more specific.
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#
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# To verify that your change has the desired effect on the final configuration
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# you can use the manual test in tests/manual/mkspecs.
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#
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QMAKE_CFLAGS_OPTIMIZE = -O2
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QMAKE_CFLAGS_OPTIMIZE_FULL = -O3
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QMAKE_CFLAGS += -pipe
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QMAKE_CFLAGS_DEPS += -M
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QMAKE_CFLAGS_WARN_ON += -Wall -W
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QMAKE_CFLAGS_WARN_OFF += -w
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QMAKE_CFLAGS_RELEASE += $$QMAKE_CFLAGS_OPTIMIZE
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QMAKE_CFLAGS_DEBUG += -g
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QMAKE_CFLAGS_SHLIB += -fPIC
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QMAKE_CFLAGS_STATIC_LIB += -fPIC
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QMAKE_CFLAGS_APP += -fPIE
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QMAKE_CFLAGS_ISYSTEM = -isystem
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QMAKE_CFLAGS_YACC += -Wno-unused -Wno-parentheses
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QMAKE_CFLAGS_HIDESYMS += -fvisibility=hidden
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QMAKE_CFLAGS_EXCEPTIONS_OFF += -fno-exceptions
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QMAKE_CXXFLAGS += $$QMAKE_CFLAGS
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QMAKE_CXXFLAGS_DEPS += $$QMAKE_CFLAGS_DEPS
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QMAKE_CXXFLAGS_WARN_ON += $$QMAKE_CFLAGS_WARN_ON
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QMAKE_CXXFLAGS_WARN_OFF += $$QMAKE_CFLAGS_WARN_OFF
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QMAKE_CXXFLAGS_RELEASE += $$QMAKE_CFLAGS_RELEASE
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QMAKE_CXXFLAGS_DEBUG += $$QMAKE_CFLAGS_DEBUG
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QMAKE_CXXFLAGS_SHLIB += $$QMAKE_CFLAGS_SHLIB
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QMAKE_CXXFLAGS_STATIC_LIB += $$QMAKE_CFLAGS_STATIC_LIB
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QMAKE_CXXFLAGS_APP += $$QMAKE_CFLAGS_APP
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QMAKE_CXXFLAGS_YACC += $$QMAKE_CFLAGS_YACC
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QMAKE_CXXFLAGS_HIDESYMS += $$QMAKE_CFLAGS_HIDESYMS -fvisibility-inlines-hidden
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QMAKE_CXXFLAGS_EXCEPTIONS_OFF += $$QMAKE_CFLAGS_EXCEPTIONS_OFF
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QMAKE_LFLAGS +=
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QMAKE_LFLAGS_DEBUG +=
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QMAKE_LFLAGS_APP +=
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QMAKE_LFLAGS_RELEASE +=
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QMAKE_LFLAGS_EXCEPTIONS_OFF +=
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QMAKE_CFLAGS_SSE2 += -msse2
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QMAKE_CFLAGS_SSE3 += -msse3
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QMAKE_CFLAGS_SSSE3 += -mssse3
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QMAKE_CFLAGS_SSE4_1 += -msse4.1
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QMAKE_CFLAGS_SSE4_2 += -msse4.2
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QMAKE_CFLAGS_AVX += -mavx
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QMAKE_CFLAGS_AVX2 += -mavx2
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QMAKE_CFLAGS_IWMMXT += -mcpu=iwmmxt
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QMAKE_CFLAGS_NEON += -mfpu=neon
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