On sexta-feira, 13 de setembro de 2013 20:13:30, Konstantin Tokarev wrote: > 13.09.2013, 19:51, "Thiago Macieira" <[email protected]>: > > On sexta-feira, 13 de setembro de 2013 17:22:32, Olivier Goffart wrote: > >>> * How bad are -O3 compiles? I've read that it's completely safe for > >>> well-written code but using optimization aggressively, may cause > >>> undefined > >>> behavior or even runtime crashes for bad codes. How is Qt code? > > > > I've only used -O3 for my optimised builds for 6 years. In fact, I only > > run Qt 4 with -O3 nowadays, except when I need to debug something. > > Strict aliasing is enabled at -O2 as well.
There are no known aliasing violations in Qt, outside of qtdeclarative. -- Thiago Macieira - thiago.macieira (AT) intel.com Software Architect - Intel Open Source Technology Center
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