[Webkit-unassigned] [Bug 60690] Avoid increasing required alignment of target type warning on ARM

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=60690





--- Comment #14 from Oliver Hunt <oliver at apple.com>  2011-07-05 21:23:38 PST ---
(In reply to comment #12)
> > Created an attachment (id=94390)
 --> (https://bugs.webkit.org/attachment.cgi?id=94390&action=review) [details]
> 
> Although it looks good to me, it would be nice to do the following as well:
> - do a Debug build and check the usual tests
> - check weather unvalidatedGet causes any alignment warning in WriteBarrier.h

Default debug build should hit unvalidatedGet()

That said this warning has always irked me as it seems hellbent on occuring for completely valid casts, like this:
warning: cast from 'JSC::JSCell*' to 'JSC::JSGlobalObject*' increases required alignment of target type

JSGlobalObject is a subclass of JSCell.  It would be a compiler bug if the compiler allowed JSGlobalObject to have alignment  requirements that differed from jscell.

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