forked from LeenkxTeam/Kmake
42 lines
1.1 KiB
JavaScript
42 lines
1.1 KiB
JavaScript
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// Copyright 2022 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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//
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// Flags: --allow-natives-syntax --maglev --no-stress-opt
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// Flags: --no-baseline-batch-compilation --use-osr --turbofan
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//
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// Disable small-function TF optimization to avoid flakes that unexpectedly
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// tier up `f` before we get a chance to enter the OSR loop.
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// Flags: --max-bytecode-size-for-early-opt=0
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// Flags: --osr-from-maglev --concurrent-osr --concurrent-recompilation
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// Flags: --always-osr-from-maglev
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let keep_going = 10000000; // A counter to avoid test hangs on failure.
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let i; // The loop counter for the test function.
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function f() {
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let sum = i;
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while (--i > 0 && !%CurrentFrameIsTurbofan() && --keep_going) {
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// This loop should trigger OSR.
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sum += i;
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}
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return sum;
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}
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function g() {
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assertTrue(%IsMaglevEnabled());
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assertTrue(%IsTurbofanEnabled());
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while (!%ActiveTierIsMaglev(f) && --keep_going) {
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i = 5.2;
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f();
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}
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i = 66666666666;
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f();
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assertTrue(keep_going > 0);
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}
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%NeverOptimizeFunction(g);
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g();
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