js/src/jit-test/tests/basic/bug504587-1.js

branch
TOR_BUG_3246
changeset 7
129ffea94266
equal deleted inserted replaced
-1:000000000000 0:517f836db449
1 // This test case failed a WIP patch. See https://bugzilla.mozilla.org/show_bug.cgi?id=504587#c68
2
3 function B() {}
4 B.prototype.x = 1;
5 var d = new B;
6
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

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