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1 // Copyright 2010 the V8 project authors. All rights reserved. | 1 // Copyright 2010 the V8 project authors. All rights reserved. |
2 // Redistribution and use in source and binary forms, with or without | 2 // Redistribution and use in source and binary forms, with or without |
3 // modification, are permitted provided that the following conditions are | 3 // modification, are permitted provided that the following conditions are |
4 // met: | 4 // met: |
5 // | 5 // |
6 // * Redistributions of source code must retain the above copyright | 6 // * Redistributions of source code must retain the above copyright |
7 // notice, this list of conditions and the following disclaimer. | 7 // notice, this list of conditions and the following disclaimer. |
8 // * Redistributions in binary form must reproduce the above | 8 // * Redistributions in binary form must reproduce the above |
9 // copyright notice, this list of conditions and the following | 9 // copyright notice, this list of conditions and the following |
10 // disclaimer in the documentation and/or other materials provided | 10 // disclaimer in the documentation and/or other materials provided |
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102 function foo(x) { | 102 function foo(x) { |
103 return Math.abs(x); | 103 return Math.abs(x); |
104 } | 104 } |
105 // Get some smi type feedback. | 105 // Get some smi type feedback. |
106 for(var i = 0; i < 1000; i++) { | 106 for(var i = 0; i < 1000; i++) { |
107 foo(-i); | 107 foo(-i); |
108 } | 108 } |
109 assertEquals(42, foo(-42)); | 109 assertEquals(42, foo(-42)); |
110 %OptimizeFunctionOnNextCall(foo) | 110 %OptimizeFunctionOnNextCall(foo) |
111 assertEquals(42, foo(-42)); | 111 assertEquals(42, foo(-42)); |
112 | |
113 // Regression test for SMI input of Math.abs on X64, see: | |
114 // https://codereview.chromium.org/21180004/ | |
115 var a = [-1, -2]; | |
116 function foo2() { | |
117 return Math.abs(a[0]); | |
118 } | |
119 assertEquals(1, foo2()); | |
120 assertEquals(1, foo2()); | |
121 %OptimizeFunctionOnNextCall(foo2); | |
122 assertEquals(1, foo2()); | |
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