118151 – FTL should do loop peeling

Bug 118151 - FTL should do loop peeling

Summary: FTL should do loop peeling

Status:	RESOLVED INVALID

Alias:	None

Product:	WebKit
Classification:	Unclassified
Component:	JavaScriptCore (show other bugs)
Version:	528+ (Nightly build)
Hardware:	All All

Importance:	P2 Normal
Assignee:	Filip Pizlo

URL:
Keywords:

Depends on:	118152
Blocks:	132356
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Attachments
work in progress (20.83 KB, patch) 2013-06-27 20:58 PDT, Filip Pizlo	no flags	Details \| Formatted Diff \| Diff
work in progress (26.45 KB, patch) 2013-06-27 21:30 PDT, Filip Pizlo	no flags	Details \| Formatted Diff \| Diff
work in progress (26.57 KB, patch) 2013-06-28 08:44 PDT, Filip Pizlo	no flags	Details \| Formatted Diff \| Diff
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Description Filip Pizlo 2013-06-27 15:16:09 PDT

We should at least try it and see what happens.

Patch forthcoming.

Comment 1 Filip Pizlo 2013-06-27 20:58:30 PDT

Created attachment 205658 [details]
work in progress

Comment 2 Filip Pizlo 2013-06-27 21:30:49 PDT

Created attachment 205660 [details]
work in progress

Comment 3 Filip Pizlo 2013-06-28 08:44:02 PDT

Created attachment 205718 [details]
work in progress

Comment 4 Filip Pizlo 2016-02-15 16:26:04 PST

This is almost certainly not a good idea.  We haven't seen any perf results that show this to be a good idea.