forked from LeenkxTeam/Kmake
40 lines
1.2 KiB
JavaScript
40 lines
1.2 KiB
JavaScript
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// 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: --no-always-turbofan
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function bar(re) {
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let match1 = re.test("123Art");
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let match2 = re.test("b123ze");
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let match3 = re.test("C");
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let nomatch1 = re.test("1234556");
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let nomatch2 = re.test("iopdsd4 ,!:^");
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return match1 && match2 && match3 && !nomatch1 && !nomatch2;
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}
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%NeverOptimizeFunction(bar);
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function foo(b) {
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let re = /[abc]/i;
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if (b) {
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// We're not collecting feedback for this case. We'll just have an
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// unconditional deopt here, and {re} will be escape-analyzed away and will
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// flow in the FrameState here. Since RegExp data are in trusted space,
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// the FrameState will thus have a trusted object as input.
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return bar(re);
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}
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return 42;
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}
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%PrepareFunctionForOptimization(foo);
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assertEquals(42, foo(false));
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assertEquals(42, foo(false));
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%OptimizeFunctionOnNextCall(foo);
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assertEquals(42, foo(false));
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assertOptimized(foo);
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// Triggering a deopt, which will materialize the regex object.
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assertEquals(true, foo(true));
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assertUnoptimized(foo);
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