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| author | Allan Sandfeld Jensen <allan.jensen@digia.com> | 2014-02-14 13:57:35 +0100 |
|---|---|---|
| committer | The Qt Project <gerrit-noreply@qt-project.org> | 2014-03-06 12:21:14 +0100 |
| commit | cd652500af18671e0d64b30d51c79a0c45b973a3 (patch) | |
| tree | 42be73d316d9bfa81569e73993e31cacf978be33 /src/corelib/corelib.pro | |
| parent | 2df1a6c4c9c7bed8dceb23a6b53014fb42014ded (diff) | |
Add optimize_full qmake config option
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>
Diffstat (limited to 'src/corelib/corelib.pro')
| -rw-r--r-- | src/corelib/corelib.pro | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/src/corelib/corelib.pro b/src/corelib/corelib.pro index 79c90e0664..812aee3252 100644 --- a/src/corelib/corelib.pro +++ b/src/corelib/corelib.pro @@ -11,6 +11,8 @@ DEFINES += QT_NO_USING_NAMESPACE win32-msvc*|win32-icc:QMAKE_LFLAGS += /BASE:0x67000000 irix-cc*:QMAKE_CXXFLAGS += -no_prelink -ptused +CONFIG += optimize_full + # otherwise mingw headers do not declare common functions like putenv mingw:QMAKE_CXXFLAGS_CXX11 = -std=gnu++0x |