Closed Bug 580703 Opened 14 years ago Closed 14 years ago

JM: "Assertion failure: !escaping[local],"

Categories

(Core :: JavaScript Engine, defect)

Product:
Core
Component:
JavaScript Engine
Platform:
x86
Linux
Type:
defect
Priority:
Not set
Severity:
critical

Tracking

()

Status:
RESOLVED FIXED

People

(Reporter: gkw, Unassigned)

References

Details

(Keywords: assertion, regression, testcase) 

let(w)(function () {
    w
})
let(e)(function () {
    e
})

asserts js debug shell on JM changeset 7c6f62fcbd91 with -m at Assertion failure: !escaping[local], at ../methodjit/FrameState-inl.h:702 when passed in as a CLI argument.
Assert is over-zealous, it tries to catch multiple DEFUPVAR ops for the same local. Here, two locals have the same slot because of block scoping.

http://hg.mozilla.org/users/danderson_mozilla.com/moo/rev/e4d74ba7c8d9
Status: NEW → RESOLVED
Closed: 14 years ago
Resolution: --- → FIXED
A testcase for this bug was automatically identified at js/src/jit-test/tests/jaeger/bug580703.js.
Flags: in-testsuite+
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