Bug 64039

Summary:

DFG JIT implementation of op_call results in regressions on sunspider controlflow-recursive

Product:

WebKit

Reporter:

Filip Pizlo <fpizlo>

Component:

JavaScriptCore

Assignee:

Nobody <webkit-unassigned>

Status:

RESOLVED FIXED

Severity:

Normal

CC:

webkit.review.bot

Priority:

Version:

528+ (Nightly build)

Hardware:

All

OS:

All

Attachments:

Description	Flags
the patch	none

Description Filip Pizlo 2011-07-06 15:41:29 PDT

The op_call implementation causes more code to be compiled by DFG, and is revealing bad speculation decisions, which result in large performance regressions especially on sunspider controlflow-recursive.

Comment 1 Filip Pizlo 2011-07-06 17:35:35 PDT

Created attachment 99906 [details]
the patch

Comment 2 WebKit Review Bot 2011-07-06 21:04:42 PDT

Comment on attachment 99906 [details]
the patch

Clearing flags on attachment: 99906

Committed r90533: <http://trac.webkit.org/changeset/90533>

Comment 3 WebKit Review Bot 2011-07-06 21:04:45 PDT

All reviewed patches have been landed.  Closing bug.