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
|
// 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
(function() {
function foo(a, v) {
a[0] = v & 0xff;
}
var a = new Uint8ClampedArray(4);
foo(a, 1);
foo(a, 2);
%OptimizeFunctionOnNextCall(foo);
foo(a, 256);
assertOptimized(foo);
assertEquals(0, a[0]);
})();
(function() {
function foo(a, v) {
a[0] = v >>> 0;
}
var a = new Uint8ClampedArray(4);
foo(a, 1);
foo(a, 2);
%OptimizeFunctionOnNextCall(foo);
foo(a, 256);
assertOptimized(foo);
assertEquals(255, a[0]);
})();
(function() {
function foo(a, v) {
a[0] = v | 0;
}
var a = new Uint8ClampedArray(4);
foo(a, 1);
foo(a, 2);
%OptimizeFunctionOnNextCall(foo);
foo(a, 256);
assertOptimized(foo);
assertEquals(255, a[0]);
foo(a, -1);
assertOptimized(foo);
assertEquals(0, a[0]);
})();
(function() {
function foo(a, v) {
a[0] = v;
}
var a = new Uint8ClampedArray(4);
foo(a, 1);
foo(a, 2);
%OptimizeFunctionOnNextCall(foo);
foo(a, Infinity);
assertOptimized(foo);
assertEquals(255, a[0]);
foo(a, -Infinity);
assertOptimized(foo);
assertEquals(0, a[0]);
foo(a, 0.5);
assertOptimized(foo);
assertEquals(0, a[0]);
foo(a, 1.5);
assertOptimized(foo);
assertEquals(2, a[0]);
})();
|
