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9d7cd9b864
PR-URL: https://github.com/nodejs/node/pull/54077 Reviewed-By: Jiawen Geng <technicalcute@gmail.com> Reviewed-By: Richard Lau <rlau@redhat.com> Reviewed-By: Joyee Cheung <joyeec9h3@gmail.com> Reviewed-By: Marco Ippolito <marcoippolito54@gmail.com>
59 lines
1.7 KiB
JavaScript
59 lines
1.7 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 --turboshaft-from-maglev --turbofan
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// Flags: --no-maglev --no-stress-concurrent-inlining
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// Flags: --invocation-count-for-turbofan=3000
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// This test checks that loop interrupt stack checks are properly detected are
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// processed.
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// Note that interrupt requests are not handled at the same time in Maglev and
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// Turbofan: in Maglev, they are not directly checked but we instead rely on the
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// fact budget interrupt will perform stack check interrupt, which in Turbofan,
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// they are checked at every loop iteration.
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var Debug = debug.Debug;
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var trigger_count = 0;
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var called_from;
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Debug.setListener(function (event, exec_state, event_data, data) {
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if (event == Debug.DebugEvent.Break) {
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called_from = exec_state.frames[0].functionName;
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trigger_count += 1;
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}
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});
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function g(x) {
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if (x == 0) {
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%ScheduleBreak();
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}
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return 7;
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}
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function loop_interrupt_check_f(x) {
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let r = 0;
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for (let i = 0; i < 10; i++) {
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if (i == 0) {
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// Schedules an interrupt if {x} is 0.
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r += g(x);
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} else {
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r += g(1);
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}
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}
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return r;
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}
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%PrepareFunctionForOptimization(loop_interrupt_check_f);
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assertEquals(70, loop_interrupt_check_f(1));
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%OptimizeFunctionOnNextCall(loop_interrupt_check_f);
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assertEquals(70, loop_interrupt_check_f(1));
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assertOptimized(loop_interrupt_check_f);
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assertEquals(0, trigger_count);
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assertEquals(70, loop_interrupt_check_f(0));
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assertEquals(1, trigger_count);
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assertEquals("loop_interrupt_check_f", called_from);
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assertOptimized(loop_interrupt_check_f);
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