1// Copyright 2015 the V8 project authors. All rights reserved.
2// Use of this source code is governed by a BSD-style license that can be
3// found in the LICENSE file.
4
5// Flags: --allow-natives-syntax
6"use strict";
7
8function test(expected, f) {
9  assertEquals(expected, f());
10  assertEquals(expected, f());
11  %OptimizeFunctionOnNextCall(f);
12  assertEquals(expected, f());
13  assertEquals(expected, f());
14}
15
16function testThrows(f) {
17  assertThrows(f);
18  assertThrows(f);
19  %OptimizeFunctionOnNextCall(f);
20  assertThrows(f);
21  assertThrows(f);
22}
23
24function f1() { return NaN; }
25test((0/0), f1);
26
27function f2() { return (0/0); }
28test((0/0), f2);
29
30function f3() { return (0/0) == (0/0); }
31test(false, f3);
32
33function f4() { return (0/0) == NaN; }
34test(false, f4);
35
36function f5() { return NaN == (0/0); }
37test(false, f5);
38
39function f6() { return "" + NaN; }
40test("NaN", f6);
41
42function f7() { return (0/0) === (0/0); }
43test(false, f7);
44
45function f8() { return (0/0) === NaN; }
46test(false, f8);
47
48function f9() { return NaN === (0/0); }
49test(false, f9);
50
51// ----
52
53function g1() { return NaN; }
54test((0/0), g1);
55
56function g2() { return (0/0); }
57test((0/0), g2);
58
59function g3() { return (0/0) == (0/0); }
60test(false, g3);
61
62function g4() { return (0/0) == NaN; }
63test(false, g4);
64
65function g5() { return NaN == (0/0); }
66test(false, g5);
67
68function g6() { return "" + NaN; }
69test("NaN", g6);
70
71function g7() { return (0/0) === (0/0); }
72test(false, g7);
73
74function g8() { return (0/0) === NaN; }
75test(false, g8);
76
77function g9() { return NaN === (0/0); }
78test(false, g9);
79
80testThrows(function() { NaN = 111; });
81
82function h1() { return NaN; }
83test((0/0), h1);
84
85function h2() { return (0/0); }
86test((0/0), h2);
87
88function h3() { return (0/0) == (0/0); }
89test(false, h3);
90
91function h4() { return (0/0) == NaN; }
92test(false, h4);
93
94function h5() { return NaN == (0/0); }
95test(false, h5);
96
97function h6() { return "" + NaN; }
98test("NaN", h6);
99
100function h7() { return (0/0) === (0/0); }
101test(false, h7);
102
103function h8() { return (0/0) === NaN; }
104test(false, h8);
105
106function h9() { return NaN === (0/0); }
107test(false, h9);
108
109// -------------
110
111function k1() { return this.NaN; }
112testThrows(k1);
113
114function k2() { return (0/0); }
115test((0/0), k2);
116
117function k3() { return (0/0) == (0/0); }
118test(false, k3);
119
120function k4() { return (0/0) == this.NaN; }
121testThrows(k4);
122
123function k5() { return this.NaN == (0/0); }
124testThrows(k5);
125
126function k6() { return "" + this.NaN; }
127testThrows(k6);
128
129function k7() { return (0/0) === (0/0); }
130test(false, k7);
131
132function k8() { return (0/0) === this.NaN; }
133testThrows(k8);
134
135function k9() { return this.NaN === (0/0); }
136testThrows(k9);
137