[Webkit-unassigned] [Bug 70140] Flush denormals to zero on Windows.

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=70140





--- Comment #14 from Raymond Toy <rtoy at chromium.org>  2011-10-17 16:11:04 PST ---
(In reply to comment #13)
> (In reply to comment #8)
> > Oops.  Can't do that because the compiler correctly complains that 
> > 
> > *d++ = Flush(*d + gain * *source)
> > 
> > is undefined.  (Because we don't know when d++ happens because there's no sequence point for =.)
> 
> This should not be the case - please re-check

I changed the lines from 

 float sumL = DenormalDisabler::FlushDenormalFloatToZero(*destinationL + gain * *sourceL++);

 *destinationL++ = sumL;

to

 *destinationL++ = DenormalDisabler::FlushDenormalFloatToZero(*destinationL + gain * *sourceL++);

Gcc (linux) complains:

cc1plus: warnings being treated as errors
third_party/WebKit/Source/WebCore/platform/audio/AudioBus.cpp: In member function ‘void WebCore::AudioBus::processWithGainFromMonoStereo(const WebCore::AudioBus&, double*, double, bool)’:
third_party/WebKit/Source/WebCore/platform/audio/AudioBus.cpp:276: error: operation on ‘destinationL’ may be undefined

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