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Issue 184443002: Evict from optimized code map in sync with removing from optimized functions list. (Closed) Base URL: https://v8.googlecode.com/svn/branches/bleeding_edge
Patch Set: Created 6 years, 9 months ago
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1 // Copyright 2013 the V8 project authors. All rights reserved.
2 // Redistribution and use in source and binary forms, with or without
3 // modification, are permitted provided that the following conditions are
4 // met:
5 //
6 // * Redistributions of source code must retain the above copyright
7 // notice, this list of conditions and the following disclaimer.
8 // * Redistributions in binary form must reproduce the above
9 // copyright notice, this list of conditions and the following
10 // disclaimer in the documentation and/or other materials provided
11 // with the distribution.
12 // * Neither the name of Google Inc. nor the names of its
13 // contributors may be used to endorse or promote products derived
14 // from this software without specific prior written permission.
15 //
16 // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
17 // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
18 // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
19 // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
20 // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
21 // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
22 // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
23 // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
24 // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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.
27
28 // Flags: --use-osr --allow-natives-syntax --crankshaft
29
30 var o1 = {a : 10};
31 var o2 = { };
32 o2.__proto__ = o1;
33 var o3 = { };
34 o3.__proto__ = o2;
35
36 function f(n, x, b) {
37 var sum = x.a;
38 for (var i = 0; i < n; i++) {
39 sum = 1.0 / i;
40 }
41 return sum;
42 }
43
44 f(10, o3);
45 f(20, o3);
46 f(30, o3);
47 %OptimizeFunctionOnNextCall(f, "concurrent");
48 f(100000, o3);
49 // At this point OSR replaces already optimized code.
50 // Check that it evicts old code from cache.
51
52 // This causes all code for f to be lazily deopted.
53 o2.a = 5;
54
55 // If OSR did not evict the old code, it will be installed in f here.
56 %OptimizeFunctionOnNextCall(f);
57 f(10, o3);
58
59 // The old code is already deoptimized, but f still points to it.
60 // Disassembling it will crash.
61 %DebugDisassembleFunction(f);
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