js/src/jit-test/tests/basic/bug504587-1.js@6474c204b198
js/src/jit-test/tests/basic/bug504587-1.js
Wed, 31 Dec 2014 06:09:35 +0100
- author
- Michael Schloh von Bennewitz <michael@schloh.com>
- date
- Wed, 31 Dec 2014 06:09:35 +0100
- changeset 0
- 6474c204b198
- permissions
- -rw-r--r--
Cloned upstream origin tor-browser at tor-browser-31.3.0esr-4.5-1-build1
revision ID fc1c9ff7c1b2defdbc039f12214767608f46423f for hacking purpose.
1 // This test case failed a WIP patch. See https://bugzilla.mozilla.org/show_bug.cgi?id=504587#c68
3 function B() {}
4 B.prototype.x = 1;
5 var d = new B;
7 var names = ['z', 'z', 'z', 'z', 'z', 'z', 'z', 'x'];
8 for (var i = 0; i < names.length; i++) {
9 x = d.x; // guard on shapeOf(d)
10 d[names[i]] = 2; // unpredicted shape change
11 y = d.x; // guard here is elided
12 }
13 assertEq(y, 2); // Assertion failed: got 1, expected 2
