c6a16c10dd
With bytecode flushing and lazy feedback allocation, we need to call %PrepareForOptimization before we call %OptimizeFunctionOnNextCall, ideally after declaring the function. Bug: v8:8801, v8:8394, v8:9183 Change-Id: I3fb257282a30f6526a376a3afdedb44786320d34 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1648255 Commit-Queue: Mathias Bynens <mathias@chromium.org> Reviewed-by: Maya Lekova <mslekova@chromium.org> Reviewed-by: Mythri Alle <mythria@chromium.org> Cr-Commit-Position: refs/heads/master@{#62119}
70 lines
2.6 KiB
JavaScript
70 lines
2.6 KiB
JavaScript
// Copyright 2012 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 --expose-gc
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// Flags: --concurrent-recompilation --block-concurrent-recompilation
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// Flags: --opt --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(x) {
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var xx = x * x;
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var xxstr = xx.toString();
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return xxstr.length;
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};
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%PrepareFunctionForOptimization(f);
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function g(x) {
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var xxx = Math.sqrt(x) | 0;
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var xxxstr = xxx.toString();
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return xxxstr.length;
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};
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%PrepareFunctionForOptimization(g);
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function k(x) {
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return x * x;
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}
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f(g(1));
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f(g(2));
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assertUnoptimized(f);
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assertUnoptimized(g);
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%OptimizeFunctionOnNextCall(f, "concurrent");
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%OptimizeFunctionOnNextCall(g, "concurrent");
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f(g(3)); // Kick off recompilation.
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assertUnoptimized(f, 'no sync'); // Not yet optimized since recompilation
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assertUnoptimized(g, 'no sync'); // is still blocked.
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// Let concurrent recompilation proceed.
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%UnblockConcurrentRecompilation();
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assertOptimized(f, 'sync'); // Optimized once we sync with the
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assertOptimized(g, 'sync'); // background thread.
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