Gary Kwong [:gkw] [:nth10sd] (NOT official MoCo now) Reporter
	Description • 14 years ago

try {
    for each(ex in [Boolean()])
    function gs() {}
    x = []
    var b = [];
    for ([, b] in this) {
        print(b)
    }
    var e
} catch (e) {}

Tested on JM changeset f7cf2b7b7961, this doesn't seem to occur on TM.

Without any parameters, this returns (the same result as the TM branch shells):

undefined
undefined
x
s
undefined

With -j on JM, this returns a different result:

undefined
undefined
x
s

(Note the last missing "undefined")

	Jesse Ruderman
	Comment 1 • 14 years ago

I think this is a dup of bug 585260.

	David Anderson [:dvander] - inactive, e-mail if emergency Assignee
	Comment 2 • 14 years ago

This reproduces on tm-tip with HOTLOOP = 3. Bisecting.

	David Anderson [:dvander] - inactive, e-mail if emergency Assignee
	Comment 3 • 14 years ago

changeset:   48671:fd0411f5ce7f
user:        Andreas Gal <gal@mozilla.com>
date:        Thu Aug 05 22:54:34 2010 -0700
summary:     Optimize string[idx] on trace (584499, r=lw).

	Jan de Mooij [:jandem]
	Comment 4 • 14 years ago

Maybe a dup of bug 587964

	David Anderson [:dvander] - inactive, e-mail if emergency Assignee
	Comment 5 • 14 years ago

Good call.