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23
24description(
25"Tests that DFG silent spill and fill of WeakJSConstants does not result in nonsense."
26);
27
28function foo(a, b, c, d)
29{
30    a.f = 42; // WeakJSConstants corresponding to the o.f transition get created here.
31    var x = !d; // Silent spilling and filling happens here.
32    b.f = x; // The WeakJSConstants get reused here.
33    var y = !d; // Silent spilling and filling happens here.
34    c.f = y; // The WeakJSConstants get reused here.
35}
36
37var Empty = "";
38
39for (var i = 0; i < 1000; ++i) {
40    var o1 = new Object();
41    var o2 = new Object();
42    var o3 = new Object();
43    eval(Empty + "foo(o1, o2, o3, \"stuff\")");
44    shouldBe("o1.f", "42");
45    shouldBe("o2.f", "false");
46    shouldBe("o3.f", "false");
47}
48