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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 | |
29 | |
30 // Test deoptimization inside short-circuited expressions. | 28 // Test deoptimization inside short-circuited expressions. |
31 function f1(x) { | 29 function f1(x) { |
32 var c = "fail"; | 30 var c = "fail"; |
33 if (!x || g1()) { | 31 if (!x || g1()) { |
34 c = ~x; | 32 c = ~x; |
35 } | 33 } |
36 return c; | 34 return c; |
37 } | 35 } |
38 | 36 |
39 function g1() { try { return 1; } finally {} } | 37 function g1() { try { return 1; } finally {} } |
40 | 38 |
41 for (var i = 0; i < 5; i++) f1(42); | 39 for (var i=0; i<10000000; i++) f1(42); |
42 %OptimizeFunctionOnNextCall(f1); | |
43 | 40 |
44 assertEquals(-1, f1(0)); | 41 assertEquals(-1, f1(0)); |
45 assertEquals(-43, f1(42)); | 42 assertEquals(-43, f1(42)); |
46 assertEquals(-1, f1("")); | 43 assertEquals(-1, f1("")); |
47 | 44 |
48 function f2(x) { | 45 function f2(x) { |
49 var c = "fail"; | 46 var c = "fail"; |
50 if (!x || !g2()) { | 47 if (!x || !g2()) { |
51 c = ~x; | 48 c = ~x; |
52 } | 49 } |
53 return c; | 50 return c; |
54 } | 51 } |
55 | 52 |
56 function g2() { try { return 0; } finally {} } | 53 function g2() { try { return 0; } finally {} } |
57 | 54 |
58 for (var i = 0; i < 5; i++) f2(42); | 55 for (var i=0; i<10000000; i++) f2(42); |
59 %OptimizeFunctionOnNextCall(f2); | |
60 | 56 |
61 assertEquals(-1, f2("")); | 57 assertEquals(-1, f2("")); |
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