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1 // Copyright 2010 the V8 project authors. All rights reserved. | 1 // Copyright 2012 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 // Test function.arguments. | 28 // Flags: --allow-natives-syntax |
29 | 29 |
30 function A() {} | 30 // Test inlining at call sites with mismatched arity. |
31 function B() {} | |
32 | 31 |
33 function fee(x, y) { | 32 function f(a) { |
34 if (x == 1) return fee["arg" + "uments"]; | 33 return a.x; |
35 if (x == 2) return gee["arg" + "uments"]; | |
36 return 42; | |
37 } | 34 } |
38 | 35 |
39 function gee(x) { return this.f(2 - x, "f"); } | 36 function g(a, b) { |
40 | 37 return a.x; |
41 function foo(x, y) { | |
42 if (x == 0) return foo["arg" + "uments"]; | |
43 if (x == 1) return goo["arg" + "uments"]; | |
44 return 42; | |
45 } | 38 } |
46 | 39 |
47 function goo(x) { return this.f(x, "f"); } | 40 function h1(a, b) { |
48 | 41 return f(a, a) * g(b); |
49 A.prototype.f = fee; | |
50 A.prototype.g = gee; | |
51 | |
52 B.prototype.f = foo; | |
53 B.prototype.g = goo; | |
54 | |
55 var o = new A(); | |
56 | |
57 function hej(x) { | |
58 if (x == 0) return o.g(x, "h"); | |
59 if (x == 1) return o.g(x, "h"); | |
60 return o.g(x, "z"); | |
61 } | 42 } |
62 | 43 |
63 function stress() { | 44 function h2(a, b) { |
64 for (var i=0; i<5000000; i++) o.g(i, "g"); | 45 return f(a, a) * g(b); |
65 for (var j=0; j<5000000; j++) hej(j); | |
66 } | 46 } |
67 | 47 |
68 stress(); | |
69 | 48 |
70 assertArrayEquals([0, "g"], o.g(0, "g")); | 49 var o = {x: 2}; |
71 assertArrayEquals([1, "f"], o.g(1, "g")); | |
72 assertArrayEquals([0, "h"], hej(0)); | |
73 assertArrayEquals([1, "f"], hej(1)); | |
74 | 50 |
75 o = new B(); | 51 assertEquals(4, h1(o, o)); |
| 52 assertEquals(4, h1(o, o)); |
| 53 assertEquals(4, h2(o, o)); |
| 54 assertEquals(4, h2(o, o)); |
| 55 %OptimizeFunctionOnNextCall(h1); |
| 56 %OptimizeFunctionOnNextCall(h2); |
| 57 assertEquals(4, h1(o, o)); |
| 58 assertEquals(4, h2(o, o)); |
76 | 59 |
77 stress(); | 60 var u = {y:0, x:1}; |
78 | 61 assertEquals(2, h1(u, o)); |
79 assertArrayEquals([0, "f"], o.g(0, "g")); | 62 assertEquals(2, h2(o, u)); |
80 assertArrayEquals([1, "g"], o.g(1, "g")); | |
81 assertArrayEquals([0, "f"], hej(0)); | |
82 assertArrayEquals([1, "h"], hej(1)); | |
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