17a74ddd3d
PR-URL: https://github.com/nodejs/node/pull/49639 Reviewed-By: Jiawen Geng <technicalcute@gmail.com> Reviewed-By: Rafael Gonzaga <rafael.nunu@hotmail.com> Reviewed-By: Antoine du Hamel <duhamelantoine1995@gmail.com>
58 lines
1.6 KiB
JavaScript
58 lines
1.6 KiB
JavaScript
// Copyright 2021 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 --sparkplug --no-always-sparkplug --use-osr
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// Flags: --turbofan --no-always-turbofan --deopt-every-n-times=0
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// Flags: --maglev --maglev-osr --osr-from-maglev
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// Flags: --concurrent-recompilation
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function isExecutingBaseline(func) {
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let opt_status = %GetOptimizationStatus(func);
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return (opt_status & V8OptimizationStatus.kTopmostFrameIsBaseline) !== 0;
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}
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function f() {
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for (var i = 0; i <= 20; i++) {
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if (i == 5) {
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%BaselineOsr();
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}
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if (i > 5) {
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assertTrue(isBaseline(f));
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assertTrue(isExecutingBaseline(f));
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}
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}
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}
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%NeverOptimizeFunction(f);
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f();
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var expectedStatus = V8OptimizationStatus.kTopmostFrameIsInterpreted;
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function checkTopmostFrame(func) {
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let opt_status = %GetOptimizationStatus(func);
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assertTrue ((opt_status & expectedStatus) !== 0, "Expected flag " +
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expectedStatus + " to be set in optimization status");
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}
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function g() {
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for (var i = 0; i <= 20; i++) {
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console.log(i)
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checkTopmostFrame(g)
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if (i == 2) {
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%BaselineOsr();
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expectedStatus = V8OptimizationStatus.kTopmostFrameIsBaseline;
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}
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if (i == 10 || i == 5) {
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%OptimizeOsr();
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// Load these to make sure maglev does not deopt before we tier up.
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let ml = V8OptimizationStatus.kTopmostFrameIsMaglev;
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let tf = V8OptimizationStatus.kTopmostFrameIsTurboFanned;
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expectedStatus = i == 5 ? ml : tf;
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}
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}
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}
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%PrepareFunctionForOptimization(g);
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g();
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