456845 - TM: "popArrs[a].pop is not a function" Error

Status: RESOLVED DUPLICATE of bug 453734

(Core :: JavaScript Engine, defect)

Description

[Dorus Peelen]

User-Agent:       Mozilla/5.0 (Windows; U; Windows NT 6.0; nl; rv:1.9.0.1) Gecko/2008070208 Firefox/3.0.1
Build Identifier: Mozilla/5.0 (Windows; U; Windows NT 6.0; en-US; rv:1.9.1b1pre) Gecko/20080923131847 Minefield/3.1b1pre

My favourite loop test (from bug 451974) recently stopped working at all with jit enabled. The error it generate says "popArrs[a].pop is not a function". With jit off, it runs just fine.

On a side note, the now failing loop is also one that previous gave a ~20% slowdown with jit enabled, but the slowdown there was to small for me to mention it in the other bug.

Reproducible: Always

Comment 1

[Dorus Peelen]

Attachment: testcase

Comment 2

[Bob Clary [:bc] (inactive)]

looks like a regression between 9/22 - 9/23

Comment 3

[Bob Clary [:bc] (inactive)]

Attachment: semi reduced testcase for shell

Comment 4

[Bob Clary [:bc] (inactive)]

bug 453734 regressed this.
http://hg.mozilla.org/mozilla-central/rev/2b795ca33b0a
http://hg.mozilla.org/tracemonkey/rev/2b795ca33b0a

Comment 5

[Andreas Gal :gal]

Thanks for bisecting.

Comment 7

[Bob Clary [:bc] (inactive)]

/cvsroot/mozilla/js/tests/js1_5/Array/regress-456845.js,v  <--  regress-456845.js
initial revision: 1.1

http://hg.mozilla.org/mozilla-central/rev/f0e9fd501e63