[Webkit-unassigned] [Bug 19180] speed up SunSpider by optimizing immediate number cases

bugzilla-daemon at webkit.org bugzilla-daemon at webkit.org
Wed May 28 10:47:38 PDT 2008


http://bugs.webkit.org/show_bug.cgi?id=19180


darin at apple.com changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
  Attachment #21395|1                           |0
        is obsolete|                            |




------- Comment #21 from darin at apple.com  2008-05-28 10:47 PDT -------
(From update of attachment 21395)
 124         return reinterpret_cast<JSValue*>((reinterpret_cast<intptr_t>(val)
>> ((reinterpret_cast<uintptr_t>(shift) >> 2) & 0x1f)) | NumberType);

Does this do the correct thing on numbers that have low bits set? What about a
1 shifted right by 1?


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