[Webkit-unassigned] [Bug 78513] If memset gets inlined at WebKit/Source/JavaScriptCore/wtf/Vector.h, it may produce a warning

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=78513


asharif.tools at gmail.com changed:

           What    |Removed                     |Added
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 Attachment #126836|0                           |1
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 Attachment #126899|                            |review?, commit-queue?
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--- Comment #4 from asharif.tools at gmail.com  2012-02-13 20:26:55 PST ---
Created an attachment (id=126899)
 --> (https://bugs.webkit.org/attachment.cgi?id=126899&action=review)
Should not have any runtime overhead with this patch at -O2.

This patch is now checking if dstEnd - dst is a constant before doing the 0 check. If dstEnd - dst is not a constant, the first part of the if condition is true and the whole if condition should be folded away.

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