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}
28 lines
705 B
JavaScript
28 lines
705 B
JavaScript
// Copyright 2019 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: --verify-heap --allow-natives-syntax
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// This checks that TransitionAndStoreNumberElement silences NaNs.
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function foo() {
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return [undefined].map(Math.asin);
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};
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%PrepareFunctionForOptimization(foo);
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foo();
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foo();
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%OptimizeFunctionOnNextCall(foo);
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foo();
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// This checks that TransitionAndStoreElement silences NaNs.
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function bar(b) {
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return [undefined].map(x => b ? Math.asin(x) : "string");
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};
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%PrepareFunctionForOptimization(bar);
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bar(true);
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bar(false);
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bar(true);
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bar(false);
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%OptimizeFunctionOnNextCall(bar);
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bar(true);
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