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// |jit-test| --fast-warmup; --no-threads
function foo(phase, o1, o2) {
switch (phase) {
case 1:
return o1.x;
case 2:
return o1.x + o2.x;
}
}
// Set `foo` as last child and `bar` as last parent.
function phase1() {
eval(`
function bar(o) {
foo(1, o);
}
with ({}) {}
for (var j = 0; j < 100; j++) {
var obj = {x: 1};
obj["y" + (j % 10)] = 2;
bar(obj);
}
bar({y: 1, x: 2});
`);
}
phase1();
// Collect `bar`.
gc();
// Recompile `foo` monomorphically.
with ({}) {}
for (var i = 0; i < 100; i++) {
foo(2, {x: 1}, {x: 1});
}
// Bail out and create a folded stub in `foo`.
// The child matches, so we use `bar` as the owning script.
for (var i = 0; i < 6; i++) {
var obj = {x: 1};
obj["y" + i] = 2;
foo(2, {y: 1, x: 2}, obj);
}