740445 - ALIASEDVAR Patch: Assertion failure: op == JSOP_LOCALINC || op == JSOP_INCLOCAL || op == JSOP_LOCALDEC || op == JSOP_DECLOCAL || op == JSOP_ARGINC || op == JSOP_INCARG || op == JSOP_ARGDEC || op == JSOP_DECARG, at methodjit/InvokeHelpers.cpp:729

Status: RESOLVED FIXED

(Core :: JavaScript Engine, defect)

Description

[Christian Holler (:decoder)]

The following test asserts on mozilla-central revision 7ed31daf07bd with patch from bug 740259 (options -m -n -a):


function testMethodInit() {
    function o() {}
    function k() {
        for (i = 0; i < this.depth; ++i) {}
    }
    for (var i = 0; i < 10; i++)
        (i) = {o: o, k: k};
}
testMethodInit();

Comment 2

[Luke Wagner [:luke]]

Decomposing JSOP_ALIASEDVARINC et al (as is done with PROPINC and ELEMINC) fixed this and 740442.  Rolling the fix and tests back into bug 740259.

Comment 3

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

Fixed by patch in bug 740259 -> FIXED

Comment 4

[Christian Holler (:decoder)]

A testcase for this bug was automatically identified at js/src/jit-test/tests/basic/testBug740445.js.