diff options
| author | Thiago Macieira <thiago.macieira@intel.com> | 2013-12-08 19:16:57 -0800 |
|---|---|---|
| committer | The Qt Project <gerrit-noreply@qt-project.org> | 2014-01-16 02:59:46 +0100 |
| commit | d006e69da61bfddb8be9a400e4cb1c25542bb9d9 (patch) | |
| tree | bf1909231fe93d08393dbb4d04f46f092c159c9d /src/gui/image/image.pri | |
| parent | 5ca6039b7738415b8beeced4d34039ee2edbd903 (diff) | |
Remove runtime detection of SSE2
If the compiler supports SSE2, we'll use our SSE2-optimised code
unconditionally. Runtime detection is left for SSSE3 code.
The SSE2 codebase is big and thus a timebomb if an inline function
gets leaked out and run without runtime check. In reality, it's
extremely unlikely people running CPUs without SSE2 support are
running Qt 5 at this moment (they're either too old or too new,
e.g. Intel Quark).
The SSSE3 codebase is a lot more manageable.
Task-number: QTBUG-30440
Change-Id: I3e586e4434e820365d5316b650ee3061d0acf767
Reviewed-by: Olivier Goffart <ogoffart@woboq.com>
Reviewed-by: Lars Knoll <lars.knoll@digia.com>
Diffstat (limited to 'src/gui/image/image.pri')
| -rw-r--r-- | src/gui/image/image.pri | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/src/gui/image/image.pri b/src/gui/image/image.pri index 1877f60bfd..ad860ef2db 100644 --- a/src/gui/image/image.pri +++ b/src/gui/image/image.pri @@ -79,5 +79,7 @@ contains(QT_CONFIG, gif):include($$PWD/qgifhandler.pri) # SIMD NEON_SOURCES += image/qimage_neon.cpp -SSE2_SOURCES += image/qimage_sse2.cpp -SSSE3_SOURCES += image/qimage_ssse3.cpp +contains(QT_CPU_FEATURES.$$QT_ARCH, sse2) { + SOURCES += image/qimage_sse2.cpp + SSSE3_SOURCES += image/qimage_ssse3.cpp +} |