1// Copyright 2013 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//
6//     * Redistributions of source code must retain the above copyright
7//       notice, this list of conditions and the following disclaimer.
8//     * Redistributions in binary form must reproduce the above
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11//       with the distribution.
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13//       contributors may be used to endorse or promote products derived
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15//
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27
28// Flags: --allow-natives-syntax --noalways-opt
29
30function mul(a, b) {
31    return a * b;
32}
33
34
35mul(-1, 2);
36mul(-1, 2);
37%OptimizeFunctionOnNextCall(mul);
38assertEquals(-2, mul(-1, 2));
39assertOptimized(mul);
40
41// Deopt on minus zero.
42assertEquals(-0, mul(-1, 0));
43assertUnoptimized(mul);
44
45
46function mul2(a, b) {
47    return a * b;
48}
49
50mul2(-1, 2);
51mul2(-1, 2);
52%OptimizeFunctionOnNextCall(mul2);
53
54// 2^30 is a smi boundary on arm and ia32.
55var two_30 = 1 << 30;
56// 2^31 is a smi boundary on x64.
57var two_31 = 2 * two_30;
58
59if (%IsValidSmi(two_31)) {
60  // Deopt on two_31 on x64.
61  assertEquals(two_31, mul2(-two_31, -1));
62  assertUnoptimized(mul2);
63} else {
64  // Deopt on two_30 on ia32.
65  assertEquals(two_30, mul2(-two_30, -1));
66  assertUnoptimized(mul2);
67}
68