595916 - TM: "Assertion failure: isFunctionFrame() && !isEvalFrame(),"

Status: RESOLVED FIXED

(Core :: JavaScript Engine, defect)

Description

[Gary Kwong [:gkw] [:nth10sd] (NOT official MoCo now)]

(function () {
    try {
        eval("\
          for each(let d in[0,0,0,0,0,0,0,0]) {\
            for(let b in[0,0]) {}\
          }\
        ")
    } catch (e) {}
})()

asserts js debug shell on TM changeset f5e128da7b5f with -j at Assertion failure: isFunctionFrame() && !isEvalFrame(),

Comment 1

[Gary Kwong [:gkw] [:nth10sd] (NOT official MoCo now)]

autoBisect shows this is probably related to the following changeset:

The first bad revision is:
changeset:   53418:8721b595e7ab
user:        Luke Wagner
date:        Mon Aug 09 22:43:33 2010 -0700
summary:     Bug 539144 - Make formal args a jit-time const offset from fp; rm argv/argc/thisv/script/callobj (r=brendan,dvander)

Comment 2

[Luke Wagner [:luke]]

Attachment: fix

mmmm, fuzzing!

Comment 3

[Luke Wagner [:luke]]

http://hg.mozilla.org/tracemonkey/rev/8875da11ded0

Comment 4

[Robert Sayre]

http://hg.mozilla.org/mozilla-central/rev/8875da11ded0

Comment 5

[Christian Holler (:decoder)]

A testcase for this bug was automatically identified at js/src/jit-test/tests/basic/testBug595916.js.