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}
25 lines
738 B
JavaScript
25 lines
738 B
JavaScript
// Copyright 2015 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 doubles = new Float64Array(1);
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function ToHeapNumber(i) {
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doubles[0] = i;
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return doubles[0];
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};
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%PrepareFunctionForOptimization(ToHeapNumber);
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for (var i = 0; i < 3; i++) ToHeapNumber(i);
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%OptimizeFunctionOnNextCall(ToHeapNumber);
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ToHeapNumber(1);
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function Fail(a, i, v) {
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a[i] = v;
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};
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%PrepareFunctionForOptimization(Fail);
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for (var i = 0; i < 3; i++) Fail(new Array(1), 1, i);
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%OptimizeFunctionOnNextCall(Fail);
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// 1050 > JSObject::kMaxGap, causing stub failure and runtime call.
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Fail(new Array(1), ToHeapNumber(1050), 3);
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