forked from qt-creator/qt-creator
41046c0d44
Also, add some timing information. Change-Id: I5d38cac9e7ad0afb24504ff521f31d5202268462 Reviewed-by: Jarek Kobus <jaroslaw.kobus@qt.io>
38 lines
650 B
Markdown
38 lines
650 B
Markdown
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This is an ad-hoc instruction count to judge the overhead imposed
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by Layoutbuilder for
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Label ll {
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text("World")
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};
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(1) up to Label::Label
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(2) after new Label to up to doit()
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(3) tuple stuff in doit up to QLabel::setText parameter construction
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With
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BuilderItem(IdAndArg<Id, Arg> && idarg)
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{
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apply = [&idarg](X *x) { doit(x, Id{}, idarg.arg); };
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}
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(1) (2) + (3) Sum
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-O0 547 259 + 802 1608
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-O2 24 23 47
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With
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BuilderItem(IdAndArg<Id, Arg> && idarg)
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: apply([&idarg](X *x) { doit(x, Id{}, idarg.arg); })
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{}
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(1) (2) + (3) Sum
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-O2 5 23 28
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