OLD | NEW |
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 // Currently, the gap resolver doesn't handle moves from a ConstantOperand to a | 30 var a = {}; |
31 // DoubleRegister, but these kind of moves appeared when HConstant::EmitAtUses | 31 a.x = 1 |
32 // was changed to allow special double values (-0, NaN, hole). So we should | 32 a.y = 1.5 |
33 // either enhance the gap resolver or make sure that such moves don't happen. | |
34 | 33 |
35 function foo(x) { | 34 var b = {} |
36 return (x ? NaN : 0.2) + 0.1; | 35 b.x = 1.5; |
| 36 b.y = 1; |
| 37 |
| 38 var c = {} |
| 39 c.x = 1.5; |
| 40 |
| 41 var d = {} |
| 42 d.x = 1.5; |
| 43 |
| 44 var e = {} |
| 45 e.x = 1.5; |
| 46 |
| 47 var f = {} |
| 48 f.x = 1.5; |
| 49 |
| 50 var g = {} |
| 51 g.x = 1.5; |
| 52 |
| 53 var h = {} |
| 54 h.x = 1.5; |
| 55 |
| 56 var i = {} |
| 57 i.x = 1.5; |
| 58 |
| 59 var o = {} |
| 60 var p = {y : 10, z : 1} |
| 61 o.__proto__ = p; |
| 62 delete p.z |
| 63 |
| 64 function foo(v, w) { |
| 65 // Make load via IC in optimized code. Its target will get overwritten by |
| 66 // lazy deopt patch for the stack check. |
| 67 v.y; |
| 68 // Make store with transition to make this code dependent on the map. |
| 69 w.y = 1; |
| 70 return b.y; |
37 } | 71 } |
38 | 72 |
39 foo(false); | 73 foo(o, c); |
40 foo(false); | 74 foo(o, d); |
| 75 foo(o, e); |
41 %OptimizeFunctionOnNextCall(foo); | 76 %OptimizeFunctionOnNextCall(foo); |
42 foo(false); | 77 foo(b, f); |
| 78 foo(b, g); |
| 79 foo(b, h); |
| 80 foo(a, i); |
OLD | NEW |