[Webkit-unassigned] [Bug 41845] refactor identifier parsing in lexer

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=41845


Zoltan Herczeg <zherczeg at webkit.org> changed:

           What    |Removed                     |Added
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  Attachment #63582|                            |review?
               Flag|                            |




--- Comment #15 from Zoltan Herczeg <zherczeg at webkit.org>  2010-08-05 06:28:53 PST ---
Created an attachment (id=63582)
 --> (https://bugs.webkit.org/attachment.cgi?id=63582)
identifier parsing patch

This patch reaches the speed of the old code with gotos.

SunSpider --parse-only:
TEST                           COMPARISON            FROM                 TO             DETAILS

=============================================================================

** TOTAL **:                   -                 34.0ms +/- 2.2%   33.6ms +/- 1.5%

=============================================================================

  jquery:                      -                  5.2ms +/- 5.8%    5.1ms +/- 4.4%
    1.3.2:                     -                  5.2ms +/- 5.8%    5.1ms +/- 4.4%

  mootools:                    -                  5.7ms +/- 6.1%    5.4ms +/- 6.8%
    1.2.2-core-nc:             -                  5.7ms +/- 6.1%    5.4ms +/- 6.8%

  prototype:                   -                  6.5ms +/- 5.8%    6.4ms +/- 5.8%
    1.6.0.3:                   -                  6.5ms +/- 5.8%    6.4ms +/- 5.8%

  concat:                      ??                16.6ms +/- 2.2%   16.7ms +/- 2.1%     not conclusive: might be *1.006x as slow*
    jquery-mootools-prototype: ??                16.6ms +/- 2.2%   16.7ms +/- 2.1%     not conclusive: might be *1.006x as slow*

Normal SunSpider reports no change.

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