forked from LeenkxTeam/Kmake
40 lines
1.0 KiB
JavaScript
40 lines
1.0 KiB
JavaScript
// Copyright 2024 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 --turbolev --turbofan
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// Flags: --concurrent-recompilation
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function g(x) {
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assertEquals(42.42, x);
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}
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%NeverOptimizeFunction(g);
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function test_osr(x, y) {
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let s = 0;
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let loop_is_turbofan = false;
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for (let i = 0; i < 20; i++) {
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%OptimizeOsr();
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s += i;
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loop_is_turbofan = %CurrentFrameIsTurbofan();
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}
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// This multiplication will trigger a deopt (because it has no feedback).
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s *= x;
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// The loop should have been in Turbofan in its last few iterations.
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assertTrue(loop_is_turbofan);
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// We shouldn't be in Turbofan anymore
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assertFalse(%CurrentFrameIsTurbofan());
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assertFalse(%ActiveTierIsTurbofan(test_osr));
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// Keeping the parameters alive, just to make sure that everything works.
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g(y);
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return s;
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}
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%PrepareFunctionForOptimization(test_osr);
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assertEquals(570, test_osr(3, 42.42));
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