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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 |  28 // Flags: --allow-natives-syntax --expose-gc | 
|  29  |  29  | 
|  30 function mkbaz(x) { |  30 /** | 
|  31   function baz() { |  31  * The possible optimization states of a function. Must be in sync with the | 
|  32     return function () { |  32  * return values of Runtime_GetOptimizationStatus() in runtime.cc! | 
|  33       return [x]; |  33  */ | 
|  34     } |  34 var OptimizationState = { | 
|  35   } |  35     YES: 1, | 
|  36   return baz; |  36     NO: 2, | 
 |  37     ALWAYS: 3, | 
 |  38     NEVER: 4 | 
 |  39 }; | 
 |  40  | 
 |  41 function mul (a, b) { | 
 |  42   return a * b; | 
|  37 } |  43 } | 
|  38  |  44  | 
|  39 var baz = mkbaz(1); |  45 mul(-1, -1); | 
 |  46 mul(0x80000001|0, -1); | 
 |  47 mul(0x80000001|0, -1); | 
 |  48 %OptimizeFunctionOnNextCall(mul); | 
 |  49 mul(0, -1); | 
 |  50 %OptimizeFunctionOnNextCall(mul); | 
 |  51 mul(0, -1); | 
|  40  |  52  | 
|  41 function foo() { |  53 var raw_optimized = %GetOptimizationStatus(mul); | 
|  42   var f = baz(); |  54 assertFalse(raw_optimized == OptimizationState.NO); | 
|  43   return f(); |  | 
|  44 } |  | 
|  45  |  | 
|  46 // Tenure. |  | 
|  47 gc(); |  | 
|  48 gc(); |  55 gc(); | 
|  49  |  56  | 
|  50 assertArrayEquals([1], foo()); |  | 
|  51 assertArrayEquals([1], foo()); |  | 
|  52 %OptimizeFunctionOnNextCall(foo); |  | 
|  53 assertArrayEquals([1], foo()); |  | 
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