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}
33 lines
636 B
JavaScript
33 lines
636 B
JavaScript
// Copyright 2016 the V8 project authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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// Flags: --allow-natives-syntax
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var thrower = {
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[Symbol.toPrimitive]: function() {
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FAIL;
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}
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};
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function testTrace(func) {
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try {
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func(thrower);
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assertUnreachable();
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} catch (e) {
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assertTrue(e.stack.indexOf("fromCharCode") >= 0);
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}
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}
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testTrace(String.fromCharCode);
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function foo(x) {
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return String.fromCharCode(x);
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};
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%PrepareFunctionForOptimization(foo);
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foo(1);
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foo(2);
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testTrace(foo);
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%OptimizeFunctionOnNextCall(foo);
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testTrace(foo);
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