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sourceRevisionAtLastExport: 33f2fb0e53d135f0ee17cfccd9d993eb2a6f47de targetRevisionAtLastExport: 31340cbd9add103f586d501b0c3354b7b182abc0
60 lines
2.6 KiB
JavaScript
60 lines
2.6 KiB
JavaScript
// Copyright 2013 the V8 project authors. All rights reserved.
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// Redistribution and use in source and binary forms, with or without
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// modification, are permitted provided that the following conditions are
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// met:
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//
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// * Redistributions of source code must retain the above copyright
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// notice, this list of conditions and the following disclaimer.
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// * Redistributions in binary form must reproduce the above
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// copyright notice, this list of conditions and the following
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// disclaimer in the documentation and/or other materials provided
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// with the distribution.
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// * Neither the name of Google Inc. nor the names of its
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// contributors may be used to endorse or promote products derived
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// from this software without specific prior written permission.
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//
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// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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// Flags: --allow-natives-syntax --no-always-opt
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// Flags: --concurrent-recompilation --block-concurrent-recompilation
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// Flags: --no-always-opt
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if (!%IsConcurrentRecompilationSupported()) {
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print("Concurrent recompilation is disabled. Skipping this test.");
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quit();
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}
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function f(foo) { return foo.bar(); }
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var o = {};
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o.__proto__ = { __proto__: { bar: function() { return 1; } } };
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assertEquals(1, f(o));
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assertEquals(1, f(o));
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// Mark for concurrent optimization.
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%OptimizeFunctionOnNextCall(f, "concurrent");
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// Kick off recompilation.
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assertEquals(1, f(o));
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// Change the prototype chain after compile graph has been created.
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o.__proto__.__proto__ = { bar: function() { return 2; } };
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// At this point, concurrent recompilation thread has not yet done its job.
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assertUnoptimized(f, "no sync");
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// Let the background thread proceed.
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%UnblockConcurrentRecompilation();
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// Optimization eventually bails out due to map dependency.
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assertUnoptimized(f, "sync");
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assertEquals(2, f(o));
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//Clear type info for stress runs.
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%ClearFunctionFeedback(f);
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