918fe04351
PR-URL: https://github.com/nodejs/node/pull/58070 Reviewed-By: Antoine du Hamel <duhamelantoine1995@gmail.com> Reviewed-By: Darshan Sen <raisinten@gmail.com> Reviewed-By: Joyee Cheung <joyeec9h3@gmail.com> Reviewed-By: Rafael Gonzaga <rafael.nunu@hotmail.com>
46 lines
1.3 KiB
JavaScript
46 lines
1.3 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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// This file excercises basic fast API calls and enables fuzzing of this
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// functionality.
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// Flags: --turbo-fast-api-calls --expose-fast-api --allow-natives-syntax --turbofan
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// --always-turbofan is disabled because we rely on particular feedback for
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// optimizing to the fastest path.
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// Flags: --no-always-turbofan
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// The test relies on optimizing/deoptimizing at predictable moments, so
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// it's not suitable for deoptimization fuzzing.
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// Flags: --deopt-every-n-times=0
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// Flags: --fast-api-allow-float-in-sim
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const fast_c_api = new d8.test.FastCAPI();
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function get() {
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return fast_c_api.fast_attribute;
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}
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function set(value) {
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fast_c_api.fast_attribute = value;
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}
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%PrepareFunctionForOptimization(set);
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set(12);
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%OptimizeFunctionOnNextCall(set);
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%PrepareFunctionForOptimization(get);
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assertEquals(12, get());
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%OptimizeFunctionOnNextCall(get);
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fast_c_api.reset_counts();
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set(21);
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assertOptimized(set);
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assertEquals(1, fast_c_api.fast_call_count());
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assertEquals(0, fast_c_api.slow_call_count());
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fast_c_api.reset_counts();
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assertEquals(21, get());
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assertOptimized(get);
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assertEquals(1, fast_c_api.fast_call_count());
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assertEquals(0, fast_c_api.slow_call_count());
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