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//
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
9//       copyright notice, this list of conditions and the following
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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//
16// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
17// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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19// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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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
30// Test overflow checks in optimized code.
31function testMul(a, b) {
32  a *= 2;
33  b *= 2;
34  if (a < 1 && b < 1) {
35    return a * b;
36  }
37}
38
39for (var i=0; i<5; i++) testMul(0,0);
40%OptimizeFunctionOnNextCall(testMul);
41assertEquals(4611686018427388000, testMul(-0x40000000, -0x40000000));
42
43function testAdd(a, b) {
44  a *= 2;
45  b *= 2;
46  if (a < 1 && b < 1) {
47    return a + b;
48  }
49}
50
51for (var i=0; i<5; i++) testAdd(0,0);
52%OptimizeFunctionOnNextCall(testAdd);
53assertEquals(-4294967296, testAdd(-0x40000000, -0x40000000));
54
55
56function testSub(a, b) {
57  a *= 2;
58  b *= 2;
59  if (b == 2) {print(a); print(b);}
60  if (a < 1 && b < 3) {
61    return a - b;
62  }
63}
64
65for (var i=0; i<5; i++) testSub(0,0);
66%OptimizeFunctionOnNextCall(testSub);
67assertEquals(-2147483650, testSub(-0x40000000, 1));
68