blob: cb8003404d6305dbf062245c4adac589ff9025d9 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
|
// Copyright 2016 the V8 project authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
// Flags: --allow-natives-syntax --opt --no-always-opt
var global = {}
var fish = [
{'name': 'foo'},
{'name': 'bar'},
];
for (var i = 0; i < fish.length; i++) {
global[fish[i].name] = 1;
}
function load() {
var sum = 0;
for (var i = 0; i < fish.length; i++) {
var name = fish[i].name;
sum += global[name];
}
return sum;
}
load();
load();
%OptimizeFunctionOnNextCall(load);
load();
assertOptimized(load);
function store() {
for (var i = 0; i < fish.length; i++) {
var name = fish[i].name;
global[name] = 1;
}
}
store();
store();
%OptimizeFunctionOnNextCall(store);
store();
assertOptimized(store);
// Regression test for KeyedStoreIC bug: would use PROPERTY mode erroneously.
function store_element(obj, key) {
obj[key] = 0;
}
var o1 = new Array(3);
var o2 = new Array(3);
o2.o2 = "o2";
var o3 = new Array(3);
o3.o3 = "o3";
var o4 = new Array(3);
o4.o4 = "o4";
var o5 = new Array(3);
o5.o5 = "o5";
// Make the KeyedStoreIC megamorphic.
store_element(o1, 0); // Premonomorphic
store_element(o1, 0); // Monomorphic
store_element(o2, 0); // 2-way polymorphic.
store_element(o3, 0); // 3-way polymorphic.
store_element(o4, 0); // 4-way polymorphic.
store_element(o5, 0); // Megamorphic.
function inferrable_store(key) {
store_element(o5, key);
}
inferrable_store(0);
inferrable_store(0);
%OptimizeFunctionOnNextCall(inferrable_store);
inferrable_store(0);
assertOptimized(inferrable_store);
// If |inferrable_store| emitted a generic keyed store, it won't deopt upon
// seeing a property name key. It should have inferred a receiver map and
// emitted an elements store, however.
inferrable_store("deopt");
// TurboFan is not sophisticated enough to use key type provided by ICs.
if (!isTurboFanned(inferrable_store)) {
assertUnoptimized(inferrable_store);
}
|
