6bd756d7c6
PR-URL: https://github.com/nodejs/node/pull/44741 Fixes: https://github.com/nodejs/node/issues/44650 Fixes: https://github.com/nodejs/node/issues/37472 Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl> Reviewed-By: Jiawen Geng <technicalcute@gmail.com> Reviewed-By: James M Snell <jasnell@gmail.com>
46 lines
1.1 KiB
JavaScript
46 lines
1.1 KiB
JavaScript
// 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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// Flags: --allow-natives-syntax --maglev
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function gen_sarl_smi(y) {
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return function sarl_smi(x) { return x >> y; };
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}
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function sarl_test(lhs, rhs, expected_result) {
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const sarl = gen_sarl_smi(rhs);
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// Warmup.
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%PrepareFunctionForOptimization(sarl);
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%ClearFunctionFeedback(sarl);
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sarl(1);
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%OptimizeMaglevOnNextCall(sarl);
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assertEquals(expected_result, sarl(lhs));
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assertTrue(isMaglevved(sarl));
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%DeoptimizeFunction(sarl);
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assertEquals(expected_result, sarl(lhs));
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}
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function sarl_test_expect_deopt(lhs, rhs, expected_result) {
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const sarl = gen_sarl_smi(rhs);
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// Warmup.
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%PrepareFunctionForOptimization(sarl);
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%ClearFunctionFeedback(sarl);
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sarl(1);
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%OptimizeMaglevOnNextCall(sarl);
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assertEquals(expected_result, sarl(lhs));
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assertFalse(isMaglevved(sarl));
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}
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sarl_test(8, 2, 2);
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sarl_test(-8, 2, -2);
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sarl_test(-8, 0, -8);
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sarl_test(8, 10, 0);
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sarl_test(8, 33, 4);
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sarl_test_expect_deopt(0xFFFFFFFF, 0x3FFFFFFF, -1);
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