Last Comment Bug 655938 - TI: Crash [@ js::types::TypeFailure] involving missing type object jitstats:prototype:new HOTLOOP: int
: TI: Crash [@ js::types::TypeFailure] involving missing type object jitstats:p...
Status: RESOLVED FIXED
: crash, regression, testcase
Product: Core
Classification: Components
Component: JavaScript Engine (show other bugs)
: Trunk
: x86 Mac OS X
: -- critical (vote)
: ---
Assigned To: general
:
Mentors:
Depends on:
Blocks: jsfunfuzz infer-regress 650163
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Reported: 2011-05-09 21:48 PDT by Gary Kwong [:gkw] [:nth10sd]
Modified: 2011-06-09 14:58 PDT (History)
5 users (show)
See Also:
Crash Signature:
QA Whiteboard:
Iteration: ---
Points: ---
Has Regression Range: ---
Has STR: ---


Attachments

Description Gary Kwong [:gkw] [:nth10sd] 2011-05-09 21:48:26 PDT
tracemonkey.HOTLOOP

crashes js debug shell on JM changeset 32e8c937a409 with -m, -a, -j and -n at js::types::TypeFailure with the following message:

[infer failure] Missing type in object jitstats:prototype:new HOTLOOP: int

autoBisect shows this is probably related to the following changeset:

The first bad revision is:
changeset:   68842:c963b24694cd
user:        Brian Hackett
date:        Mon May 09 07:12:47 2011 -0700
summary:     [INFER] Remove on stack recompilation, allow removed on stack JIT frames to rejoin into the interpreter, bug 650163.
Comment 1 Brian Hackett (:bhackett) 2011-05-10 08:44:39 PDT
We needed a type barrier for getProperty accesses which go through the class getProperty hook.

http://hg.mozilla.org/projects/jaegermonkey/rev/2b272d7fb2e5

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