1// Copyright 2010 the V8 project authors. All rights reserved.
2// Redistribution and use in source and binary forms, with or without
3// modification, are permitted provided that the following conditions are
4// met:
5//
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7//       notice, this list of conditions and the following disclaimer.
8//     * Redistributions in binary form must reproduce the above
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15//
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17// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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20// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
21// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
22// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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26// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27
28// Flags: --allow-natives-syntax
29
30function f(x) {
31  return ~x;
32}
33
34f(42);
35assertEquals(~12, f(12.45));
36assertEquals(~42, f(42.87));
37
38
39var a = 1, b = 2, c = 4, d = 8;
40function g() {
41  return a | (b | (c | d));
42}
43
44g();
45c = "16";
46assertEquals(1 | 2 | 16 | 8, g());
47
48
49// Test deopt when global function changes.
50function h() {
51  return g();
52}
53assertEquals(1 | 2 | 16 | 8, h());
54g = function() { return 42; };
55assertEquals(42, h());
56
57
58// Test deopt when map changes.
59var obj = {};
60obj.g = g;
61function k(o) {
62  return o.g();
63}
64for (var i = 0; i < 5; i++) k(obj);
65%OptimizeFunctionOnNextCall(k);
66k(obj);
67assertEquals(42, k(obj));
68assertEquals(87, k({g: function() { return 87; }}));
69
70
71// Test deopt with assignments to parameters.
72function p(x,y) {
73  x = 42;
74  y = 1;
75  y = y << "0";
76  return x | y;
77}
78assertEquals(43, p(0,0));
79
80
81// Test deopt with literals on the expression stack.
82function LiteralToStack(x) {
83  return 'lit[' + (x + ']');
84}
85
86assertEquals('lit[-87]', LiteralToStack(-87));
87assertEquals('lit[0]', LiteralToStack(0));
88assertEquals('lit[42]', LiteralToStack(42));
89
90
91// Test deopt before call.
92var str = "abc";
93var r;
94function CallCharAt(n) { return str.charAt(n); }
95for (var i = 0; i < 5; i++) {
96  r = CallCharAt(0);
97}
98%OptimizeFunctionOnNextCall(CallCharAt);
99r = CallCharAt(0);
100assertEquals("a", r);
101
102
103// Test of deopt in presence of spilling.
104function add4(a,b,c,d) {
105  return a+b+c+d;
106}
107assertEquals(0x40000003, add4(1,1,2,0x3fffffff));
108