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author | Kent Hansen <kent.hansen@nokia.com> | 2011-09-14 13:38:39 +0200 |
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committer | Qt by Nokia <qt-info@nokia.com> | 2011-09-15 20:39:28 +0200 |
commit | a48e9af146ee1d7571934994065e7164fd323f18 (patch) | |
tree | eae84b3faf30a4c0c7489ec2b6c6c0da1f4630fa /config.tests/qws | |
parent | 5639423ea7322d5880d68c61c480a3a084ac4f8b (diff) |
Boost performance of QChar::isLetter
Make it inline; add fast checks for ascii letters;
add fallback function that uses the fastcall calling
convention.
On ia32, this change makes isLetter ~370x faster for
ascii letters, ~250x faster for non-letter ascii
characters, and ~1.5x faster for non-ascii characters.
Note that this change is NOT binary compatible.
Also add an autotest with expected results from
before the optimization, to ensure that the
behavior is the same.
Change-Id: I06f8d3d43114537cee5567e670898cef6494c20a
Reviewed-on: http://codereview.qt-project.org/4903
Reviewed-by: Qt Sanity Bot <qt_sanity_bot@ovi.com>
Reviewed-by: Lars Knoll <lars.knoll@nokia.com>
Diffstat (limited to 'config.tests/qws')
0 files changed, 0 insertions, 0 deletions