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1 // Copyright 2012 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 // Flags: --allow-natives-syntax --expose-gc --inline-construct | 28 // Flags: --allow-natives-syntax --inline-construct |
29 | 29 |
30 // Test inlining of constructor calls. | 30 // Test inlining of constructor calls. |
31 | 31 |
32 function TestInlinedConstructor(closure) { | 32 function TestInlinedConstructor(closure) { |
33 var result; | 33 var result; |
34 var counter = { value:0 }; | 34 var counter = { value:0 }; |
35 result = closure(11, 12, counter); | 35 result = closure(11, 12, counter); |
36 assertEquals(23, result); | 36 assertEquals(23, result); |
37 assertEquals(1, counter.value); | 37 assertEquals(1, counter.value); |
38 result = closure(23, 19, counter); | 38 result = closure(23, 19, counter); |
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61 function effect_context(a, b, counter) { | 61 function effect_context(a, b, counter) { |
62 new constructor(a, b, counter); | 62 new constructor(a, b, counter); |
63 return a + b; | 63 return a + b; |
64 } | 64 } |
65 TestInlinedConstructor(value_context); | 65 TestInlinedConstructor(value_context); |
66 TestInlinedConstructor(test_context); | 66 TestInlinedConstructor(test_context); |
67 TestInlinedConstructor(effect_context); | 67 TestInlinedConstructor(effect_context); |
68 %DeoptimizeFunction(value_context); | 68 %DeoptimizeFunction(value_context); |
69 %DeoptimizeFunction(test_context); | 69 %DeoptimizeFunction(test_context); |
70 %DeoptimizeFunction(effect_context); | 70 %DeoptimizeFunction(effect_context); |
71 gc(); // Makes V8 forget about type information for *_context. | 71 %ClearFunctionTypeFeedback(value_context); |
| 72 %ClearFunctionTypeFeedback(test_context); |
| 73 %ClearFunctionTypeFeedback(effect_context); |
72 } | 74 } |
73 | 75 |
74 | 76 |
75 // Test constructor returning nothing in all contexts. | 77 // Test constructor returning nothing in all contexts. |
76 function c1(a, b, counter) { | 78 function c1(a, b, counter) { |
77 this.x = a + b; | 79 this.x = a + b; |
78 counter.value++; | 80 counter.value++; |
79 } | 81 } |
80 TestInAllContexts(c1); | 82 TestInAllContexts(c1); |
81 | 83 |
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143 | 145 |
144 | 146 |
145 // Regression test: Inlined constructors called as functions do not get their | 147 // Regression test: Inlined constructors called as functions do not get their |
146 // implicit receiver object set to undefined, even in strict mode. | 148 // implicit receiver object set to undefined, even in strict mode. |
147 function c_strict(a, b, counter) { | 149 function c_strict(a, b, counter) { |
148 "use strict"; | 150 "use strict"; |
149 this.x = a + b; | 151 this.x = a + b; |
150 counter.value++; | 152 counter.value++; |
151 } | 153 } |
152 TestInAllContexts(c_strict); | 154 TestInAllContexts(c_strict); |
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