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1 // Copyright 2013 the V8 project authors. All rights reserved. | 1 // Copyright 2013 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 | 28 // Flags: --allow-natives-syntax |
29 | 29 |
30 function f(i, b) { | 30 // Load fields should not be hoisted beyond their check maps when the check maps |
31 var a = 0; | 31 // cannot be hoisted due to changes in elements kinds. |
32 if (b) { | 32 function f(o, a) { |
33 var c = 1 << i; | 33 var v; |
34 a = c + c; | 34 var i = 1; |
| 35 while (i < 2) { |
| 36 v = o.y; |
| 37 a[0] = 1.5; |
| 38 i++; |
35 } | 39 } |
36 var x = a >> 3; | 40 return v; |
37 return a; | |
38 } | 41 } |
39 | 42 |
40 f(1, false); | 43 f({y:1.4}, [1]); |
41 f(1, true); | 44 f({y:1.6}, [1]); |
42 %OptimizeFunctionOnNextCall(f); | 45 %OptimizeFunctionOnNextCall(f); |
43 assertEquals((1 << 30) * 2, f(30, true)); | 46 f({x:1}, [1]); |
44 | 47 |
45 | 48 // Polymorphic loads should not be hoisted beyond their compare maps. |
46 var global = 1; | 49 function f2(o) { |
47 | 50 var i = 0; |
48 function f2(b) { | 51 var v; |
49 var a = 0; | 52 while (i < 1) { |
50 if (b) { | 53 v = o.x; |
51 a = global; | 54 i++; |
52 } | 55 } |
53 var x = a >> 3; | 56 return v; |
54 return a; | |
55 } | 57 } |
56 | 58 |
57 f2(false); | 59 var o1 = { x: 1.5 }; |
58 f2(true); | 60 var o2 = { y: 1, x: 1 }; |
| 61 |
| 62 f2(o1); |
| 63 f2(o1); |
| 64 f2(o2); |
59 %OptimizeFunctionOnNextCall(f2); | 65 %OptimizeFunctionOnNextCall(f2); |
60 global = 2.5; | 66 f2(o2); |
61 assertEquals(global, f2(true)); | |
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