Bug 129915

Summary: Continue hangs when performing for-of over arguments
Product: WebKit Reporter: Oliver Hunt <oliver>
Component: New BugsAssignee: Oliver Hunt <oliver>
Status: RESOLVED FIXED    
Severity: Normal    
Priority: P2    
Version: 528+ (Nightly build)   
Hardware: Unspecified   
OS: Unspecified   
Attachments:
Description Flags
Patch ggaren: review+

Description Oliver Hunt 2014-03-07 14:24:55 PST 
Continue hangs when performing for-of over arguments
Comment 1 Oliver Hunt 2014-03-07 14:29:55 PST 
*** Bug 129917 has been marked as a duplicate of this bug. ***
Comment 2 Oliver Hunt 2014-03-07 14:30:08 PST 
*** Bug 129916 has been marked as a duplicate of this bug. ***
Comment 3 Oliver Hunt 2014-03-07 16:18:06 PST 
Created attachment 226183 [details]
Patch
Comment 4 Geoffrey Garen 2014-03-07 16:35:33 PST 
Comment on attachment 226183 [details]
Patch

View in context: https://bugs.webkit.org/attachment.cgi?id=226183&action=review

r=me

> Source/JavaScriptCore/bytecompiler/BytecodeGenerator.cpp:2451
> +        emitJump(loopCondition.get());

Our other looping nodes prefer to emit op_less twice -- once at the head of the loop, and once at the tail. That makes the CFG more amenable to optimization.
Comment 5 Oliver Hunt 2014-03-07 17:12:21 PST 
Committed r165306: <http://trac.webkit.org/changeset/165306>