657901 - TI+JM: [infer failure] Missing type in object Global f: #7

Status: RESOLVED FIXED

(Core :: JavaScript Engine, defect)

Description

[Jan de Mooij [:jandem]]

--
function f() {};
function g(o) {
    f = new Function("");
    eval("");
}
g({});
g({});
f++;
--
$ ./js -a -n -m test.js
[infer failure] Missing type in object Global f: #7

Revision 5d1cbc94bc42, 32-bit OS X.

Comment 1

[Brian Hackett [Laid off!]]

In one of the stub calls we didn't go through a type barrier after a property cache hit.  This adds nativeSetSlotWithType for cases where we have the shape and associated slot but need to go through a barrier before updating the object (analogous to setDenseArrayElementWithType).  Went through other nativeSetSlot calls and there were a couple other places missing barriers.

http://hg.mozilla.org/projects/jaegermonkey/rev/29bd8523ead9