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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 |
11 // with the distribution. | 11 // with the distribution. |
12 // * Neither the name of Google Inc. nor the names of its | 12 // * Neither the name of Google Inc. nor the names of its |
13 // contributors may be used to endorse or promote products derived | 13 // contributors may be used to endorse or promote products derived |
14 // from this software without specific prior written permission. | 14 // from this software without specific prior written permission. |
15 // | 15 // |
16 // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS | 16 // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
17 // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT | 17 // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
18 // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR | 18 // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
19 // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT | 19 // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
20 // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, | 20 // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
21 // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT | 21 // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
22 // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, | 22 // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
23 // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY | 23 // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
24 // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | 24 // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
25 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE | 25 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
26 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | 26 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
27 | 27 |
28 // Flags: --allow-natives-syntax --check-elimination | 28 // Flags: --allow-natives-syntax --check-elimination |
29 | 29 |
30 a = { | 30 function A(x, y) { |
31 f: function() { this.y = 3; } | 31 this.x = x; |
32 }; | 32 this.y = y; |
33 b = { | |
34 f: function() { this.y = 4; } | |
35 }; | |
36 | |
37 function x(z) { | |
38 return z.f(); | |
39 } | 33 } |
40 | 34 |
41 x(a); | 35 function B(x, y) { |
42 x(b); | 36 this.x = x; |
43 x(a); | 37 this.y = y; |
44 x(b); | 38 } |
45 x(a); | |
46 x(b); | |
47 | 39 |
48 %OptimizeFunctionOnNextCall(x) | 40 function F1(a, b) { |
| 41 if (a == b) return a.x; |
| 42 else return b.x; |
| 43 } |
49 | 44 |
50 x(a); | 45 function F2(a, b) { |
51 x(b); | 46 if (a == b) return a.x; |
| 47 else return b.x; |
| 48 } |
| 49 |
| 50 function F3(a, b) { |
| 51 var f = a.y; |
| 52 if (a == b) return a.x; |
| 53 else return b.x; |
| 54 } |
| 55 |
| 56 function F4(a, b) { |
| 57 var f = b.y; |
| 58 if (a == b) return a.x; |
| 59 else return b.x; |
| 60 } |
| 61 |
| 62 %NeverOptimizeFunction(test); |
| 63 |
| 64 function test(f, a, b) { |
| 65 f(a, a); |
| 66 f(a, b); |
| 67 f(b, a); |
| 68 f(b, c); |
| 69 f(b, b); |
| 70 f(c, c); |
| 71 |
| 72 %OptimizeFunctionOnNextCall(f) |
| 73 |
| 74 assertEquals(a.x, f(a, a)); |
| 75 assertEquals(b.x, f(b, b)); |
| 76 } |
| 77 |
| 78 var a = new A(3, 5); |
| 79 var b = new B(2, 6); |
| 80 var c = new A(1, 7); |
| 81 |
| 82 test(F1, a, c); |
| 83 test(F2, a, b); |
| 84 test(F3, a, b); |
| 85 test(F4, a, b); |
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