bf10f65976
This makes the runtime rely on the {HasBytecodeArray} predicate to
determine whether code generated by TurboFan was build without any
deoptimization support, as opposed to {asm_function}.
R=rmcilroy@chromium.org
BUG=v8:6589
Change-Id: Id124bed47a5fa02d31ff8fd3eee561b2df6c9226
Reviewed-on: https://chromium-review.googlesource.com/571786
Reviewed-by: Yang Guo <yangguo@chromium.org>
Reviewed-by: Ross McIlroy <rmcilroy@chromium.org>
Commit-Queue: Michael Starzinger <mstarzinger@chromium.org>
Cr-Commit-Position: refs/heads/master@{#46694}
35 lines
824 B
JavaScript
35 lines
824 B
JavaScript
// Copyright 2017 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 --opt --no-always-opt --no-stress-fullcodegen
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function foo(i, deopt = false) {
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if (i == 0) {
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if (deopt) {
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// Trigger an eager deopt.
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%_DeoptimizeNow();
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}
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} else {
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foo(i - 1, deopt);
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}
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}
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assertEquals(0, %GetOptimizationCount(foo));
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assertEquals(0, %GetDeoptCount(foo));
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foo(10);
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foo(10);
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%OptimizeFunctionOnNextCall(foo);
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foo(10);
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assertOptimized(foo);
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assertEquals(1, %GetOptimizationCount(foo));
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assertEquals(0, %GetDeoptCount(foo));
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foo(10, true);
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assertUnoptimized(foo);
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assertEquals(1, %GetOptimizationCount(foo));
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assertEquals(1, %GetDeoptCount(foo));
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