Closed Bug 651827 Opened 9 years ago Closed 9 years ago

TI: "Assertion failure: v_.s.tag != JSVAL_TAG_CLEAR,"

Categories

(Core :: JavaScript Engine, defect, critical)

x86
macOS
defect
Not set
critical

Tracking

()

RESOLVED FIXED

People

(Reporter: gkw, Unassigned)

References

(Blocks 3 open bugs)

Details

(Keywords: assertion, regression, testcase)

Attachments

(1 file)

Attached file stack
try {
    function x() {}
} catch(e) {}
switch (undefined) {
    case(y) = Infinity:
}

asserts js debug shell on JM changeset 1fe03044bfeb with -m, -a and -n at Assertion failure: v_.s.tag != JSVAL_TAG_CLEAR,

autoBisect shows this is probably related to the following changeset:

The first bad revision is:
changeset:   68213:244446b156b7
user:        Brian Hackett
date:        Sat Apr 16 06:54:01 2011 -0700
summary:     [INFER] LICM and bounds check hoisting for x.length, bug 649693.
Simple bogus assertion, we were asserting the consistency of a different value from the one which we were about to access (needed to assert on a FrameEntry's backing's data rather than the FrameEntry itself).

http://hg.mozilla.org/projects/jaegermonkey/rev/96b40c951d15
Status: NEW → RESOLVED
Closed: 9 years ago
Resolution: --- → FIXED
Blocks: 349611
Automatically extracted testcase for this bug was committed:

https://hg.mozilla.org/mozilla-central/rev/efaf8960a929
Flags: in-testsuite+
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