[Webkit-unassigned] [Bug 70246] REGRESSION(r96189): Cappuccino applications don't work anymore

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=70246





--- Comment #18 from Filip Pizlo <fpizlo at apple.com>  2012-09-21 12:46:43 PST ---
(In reply to comment #17)
> Created an attachment (id=165033)
 --> (https://bugs.webkit.org/attachment.cgi?id=165033&action=review) [details]
> bug 70246 test case
> 
> Ok, here is a sample app causing problem.
> 
> Procedure: open index-debug.html (this application will throw lot of errors, but when it's "working" you should see a window with a textfield and a slider)
> 
> Case:
> 
> In this extracted code, there are 3 referenced block identified by:
> 
>  /* BEGIN: REFERENCED BLOCK [A|B|C] */
>  /* END: REFERENCED BLOCK [A|B|C] */
> 
> 
> The error happens differently according to which blocks are commented out.
> 
> Here is what I found so far:
> 
> 
> nothing commented: KO
> 
> A commented: OK
> B commented: KO
> C commented: KO
> 
> A,B commented: OK
> A,C commented: OK
> B,C commented: OK
> 
> A,B,C commented: OK
> 
> 
> I cannot find any obvious logic in this.

Awesome. I can repro.

It looks like it's our JIT's fault, as disabling it makes the bug go away.

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