Bug 122487 - FTL should use llvm.webkit.stackmap for OSR exit
Summary: FTL should use llvm.webkit.stackmap for OSR exit
Alias: None
Product: WebKit
Classification: Unclassified
Component: JavaScriptCore (show other bugs)
Version: 528+ (Nightly build)
Hardware: All All
: P2 Normal
Assignee: Filip Pizlo
Keywords: InRadar
Depends on: 122518 122538 122666 122688
Blocks: 122318
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Reported: 2013-10-07 22:01 PDT by Filip Pizlo
Modified: 2013-11-02 20:13 PDT (History)
9 users (show)

See Also:

work in progress (23.25 KB, patch)
2013-10-07 22:02 PDT, Filip Pizlo
no flags Details | Formatted Diff | Diff
more! (33.59 KB, patch)
2013-10-08 12:40 PDT, Filip Pizlo
no flags Details | Formatted Diff | Diff

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Description Filip Pizlo 2013-10-07 22:01:59 PDT
Patch forthcoming.

This will take some iterating to get right.
Comment 1 Filip Pizlo 2013-10-07 22:02:26 PDT
Created attachment 213652 [details]
work in progress
Comment 2 Filip Pizlo 2013-10-08 12:40:38 PDT
Created attachment 213707 [details]
Comment 3 Filip Pizlo 2013-10-08 20:25:17 PDT
Comment 4 Filip Pizlo 2013-10-13 21:54:08 PDT
Leaving this open until the LLVM side of the patches lands and we can enable this by default.
Comment 5 Filip Pizlo 2013-10-17 23:15:22 PDT
This works reliably as of http://trac.webkit.org/changeset/157382, but I'll leave it open until the functionality is available in LLVM trunk.
Comment 6 Filip Pizlo 2013-11-02 20:13:55 PDT
It's in trunk.  The remaining work to port the implementation to the slight changes between the original LLVM patch and what landed will be covered in https://bugs.webkit.org/show_bug.cgi?id=122318.