Bug 142197 - SpeculativeJIT::emitAllocateArguments() should be a bit faster, and shouldn't do destructor initialization
Summary: SpeculativeJIT::emitAllocateArguments() should be a bit faster, and shouldn't...
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: 141174
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Reported: 2015-03-02 16:28 PST by Filip Pizlo
Modified: 2015-03-02 16:46 PST (History)
0 users

See Also:

the patch (2.98 KB, patch)
2015-03-02 16:33 PST, Filip Pizlo
ggaren: review+
Details | Formatted Diff | Diff

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Description Filip Pizlo 2015-03-02 16:28:35 PST
Patch forthcoming.
Comment 1 Filip Pizlo 2015-03-02 16:33:45 PST
Created attachment 247717 [details]
the patch
Comment 2 Geoffrey Garen 2015-03-02 16:36:16 PST
Comment on attachment 247717 [details]
the patch

View in context: https://bugs.webkit.org/attachment.cgi?id=247717&action=review


> Source/JavaScriptCore/ChangeLog:9
> +        (JSC::DFG::SpeculativeJIT::emitAllocateArguments): Use shift instead of mul, since mul doesn't automatically strength-reduce to shift. Also lass the structure as a TrustedImmPtr.

lass => pass
Comment 3 Filip Pizlo 2015-03-02 16:46:33 PST
Landed in http://trac.webkit.org/changeset/180909