Bug 118335 - fourthTier: Have fewer Arrayify's
Summary: fourthTier: Have fewer Arrayify's
Alias: None
Product: WebKit
Classification: Unclassified
Component: JavaScriptCore (show other bugs)
Version: 528+ (Nightly build)
Hardware: All All
: P2 Normal
Assignee: Filip Pizlo
Depends on:
Blocks: 112840
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Reported: 2013-07-02 19:24 PDT by Filip Pizlo
Modified: 2013-07-02 20:46 PDT (History)
7 users (show)

See Also:

the patch (4.99 KB, patch)
2013-07-02 19:28 PDT, Filip Pizlo
mhahnenberg: review+
Details | Formatted Diff | Diff

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Description Filip Pizlo 2013-07-02 19:24:29 PDT
This affects the FTL because it's hard to do meaningful low-level optimizations when you have the control flow diamond that Arrayify causes.
Comment 1 Filip Pizlo 2013-07-02 19:28:50 PDT
Created attachment 205963 [details]
the patch
Comment 2 Mark Hahnenberg 2013-07-02 20:10:11 PDT
Comment on attachment 205963 [details]
the patch

Comment 3 Filip Pizlo 2013-07-02 20:46:29 PDT
Landed in http://trac.webkit.org/changeset/152336