289b25765a
This adds either %EnsureFeedbackVectorForFunction or %PrepareFunctionForOptimization to allocate feedback vectors when testing optimization, allocation sites, IC transitions etc., Bug: v8:8394 Change-Id: I6ad1b6d460e4abda693b326cddb87754e080a0a1 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1593303 Commit-Queue: Mythri Alle <mythria@chromium.org> Auto-Submit: Mythri Alle <mythria@chromium.org> Reviewed-by: Ross McIlroy <rmcilroy@chromium.org> Cr-Commit-Position: refs/heads/master@{#61212}
36 lines
708 B
JavaScript
36 lines
708 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
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function g(y) { assertEquals(y, 12); }
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var X = 0;
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function foo () {
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var cnt = 0;
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var l = -1;
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var x = 0;
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while (1) switch (l) {
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case -1:
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var y = x + 12;
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l = 0;
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break;
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case 0:
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if (cnt++ == 5) {
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%OptimizeOsr();
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l = 1;
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}
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break;
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case 1:
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// This case will contain deoptimization
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// because it has no type feedback.
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g(y);
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return;
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};
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}
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%PrepareFunctionForOptimization(foo);
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foo();
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