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}
66 lines
1.3 KiB
JavaScript
66 lines
1.3 KiB
JavaScript
// Copyright 2014 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 () {
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function f(a, b, mode) {
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if (mode) {
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return a === b;
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} else {
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return a === b;
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}
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}
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// Gather type feedback for both branches.
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f("a", "b", 1);
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f("c", "d", 1);
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f("a", "b", 0);
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f("c", "d", 0);
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function g(mode) {
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var x = 1e10 | 0;
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f(x, x, mode);
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}
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// Gather type feedback for g, but only on one branch for f.
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;
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%PrepareFunctionForOptimization(g);
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g(1);
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g(1);
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%OptimizeFunctionOnNextCall(g);
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// Optimize g, which inlines f. Both branches in f will see the constant.
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g(0);
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})();
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(function () {
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function f(a, b, mode) {
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if (mode) {
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return a === b;
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} else {
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return a === b;
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}
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}
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// Gather type feedback for both branches.
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f({a: 1}, {b: 1}, 1);
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f({c: 1}, {d: 1}, 1);
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f({a: 1}, {c: 1}, 0);
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f({b: 1}, {d: 1}, 0);
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function g(mode) {
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var x = 1e10 | 0;
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f(x, x, mode);
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}
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// Gather type feedback for g, but only on one branch for f.
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;
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%PrepareFunctionForOptimization(g);
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g(1);
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g(1);
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%OptimizeFunctionOnNextCall(g);
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// Optimize g, which inlines f. Both branches in f will see the constant.
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g(0);
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})();
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