204dc4aa1d
Based on a CL by mvstanton@. Bug: v8:7790,v8:12030,v8:12031,v8:12041 Change-Id: I58b75bd96c724a99133bec7d3bd6cf4e0c9be6d4 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3059683 Reviewed-by: Jakob Kummerow <jkummerow@chromium.org> Reviewed-by: Georg Neis <neis@chromium.org> Commit-Queue: Jakob Gruber <jgruber@chromium.org> Cr-Commit-Position: refs/heads/master@{#76055}
76 lines
3.0 KiB
JavaScript
76 lines
3.0 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
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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 new_object() {
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var o = {};
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o.a = 1;
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o.b = 2;
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return o;
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}
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function add_field(obj) {
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// Assign twice to make the field non-constant.
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obj.c = 0;
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obj.c = 3;
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}
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%PrepareFunctionForOptimization(add_field);
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var obj1 = new_object();
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var obj2 = new_object();
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add_field(obj1);
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add_field(obj2);
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%OptimizeFunctionOnNextCall(add_field, "concurrent");
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var o = new_object();
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// Kick off recompilation.
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add_field(o);
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// Invalidate transition map after compile graph has been created.
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o.c = 2.2;
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// In the mean time, concurrent recompiling is still blocked.
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assertUnoptimized(add_field, "no sync");
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// Let concurrent recompilation proceed.
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%UnblockConcurrentRecompilation();
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// Sync with background thread to conclude optimization that bailed out.
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if (!%IsDictPropertyConstTrackingEnabled()) {
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// TODO(v8:11457) Currently, we cannot inline property stores if there is a
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// dictionary mode prototype on the prototype chain. Therefore, if
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// v8_dict_property_const_tracking is enabled, the optimized code only
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// contains a call to the IC handler and doesn't get invalidated when the
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// transition map changes.
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assertUnoptimized(add_field, "sync");
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}
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// Clear type info for stress runs.
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%ClearFunctionFeedback(add_field);
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