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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/gui/painting/qdrawhelper.cpp | |
| 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/gui/painting/qdrawhelper.cpp')
| -rw-r--r-- | src/gui/painting/qdrawhelper.cpp | 14 |
1 files changed, 0 insertions, 14 deletions
diff --git a/src/gui/painting/qdrawhelper.cpp b/src/gui/painting/qdrawhelper.cpp index 66481d4287..3f598cd3a7 100644 --- a/src/gui/painting/qdrawhelper.cpp +++ b/src/gui/painting/qdrawhelper.cpp @@ -39,20 +39,6 @@ ** ****************************************************************************/ -#if defined(__OPTIMIZE__) && !defined(__INTEL_COMPILER) && defined(__GNUC__) \ - && (__GNUC__ * 100 + __GNUC_MINOR__ * 10 + __GNUC_PATCHLEVEL__ >= 440) -// GCC 4.4 supports #pragma GCC optimize and #pragma GCC target - -# if (__GNUC__ * 100 + __GNUC_MINOR__ * 10 + __GNUC_PATCHLEVEL__ < 473) -// From GCC 4.7.3 onwards, GCC optimize can result in gcc bailing out with OOM -# pragma GCC optimize "O3" -# endif - -# if defined(__i386__) && defined(__SSE2__) && !defined(__SSE2_MATH__) -# pragma GCC target "fpmath=sse" -# endif -#endif - #include <qglobal.h> #ifdef Q_OS_IOS // We don't build the NEON drawhelpers as they are implemented partly |