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Issue 7105015: Eagerly deoptimize on never-executed code-paths. (Closed) Base URL: http://v8.googlecode.com/svn/branches/bleeding_edge/
Patch Set: '' Created 9 years, 6 months ago
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1 // Copyright 2011 the V8 project authors. All rights reserved. 1 // Copyright 2011 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
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48 function h() { 48 function h() {
49 var optstatus = %GetOptimizationStatus(h); 49 var optstatus = %GetOptimizationStatus(h);
50 if (optstatus == 4) { 50 if (optstatus == 4) {
51 // Optimizations are globally disabled; just run once. 51 // Optimizations are globally disabled; just run once.
52 g(); 52 g();
53 } else { 53 } else {
54 // Run for a bit as long as h is unoptimized. 54 // Run for a bit as long as h is unoptimized.
55 while (%GetOptimizationStatus(h) == 2) { 55 while (%GetOptimizationStatus(h) == 2) {
56 for (var j = 0; j < 100; j++) g(); 56 for (var j = 0; j < 100; j++) g();
57 } 57 }
58 assertTrue(%GetOptimizationStatus(h) == 1 ||
59 %GetOptimizationStatus(h) == 3);
60 g(); 58 g();
61 } 59 }
62 } 60 }
63 61
64 h(); 62 h();
65 o = new B(); 63 o = new B();
66 assertThrows("h()"); 64 assertThrows("h()");
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