forked from LeenkxTeam/Kmake
83 lines
2.1 KiB
JavaScript
83 lines
2.1 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 --turbolev --turbofan
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function* foo(x) {
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let s = 0;
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for (let i = 0; i < x + 2; i++) {
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s += 2;
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try {
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yield i + 17;
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s += 1;
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// The following `yield` looks like it's out of the loop when looking at
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// the regular .next() path, because it's predecessor is outside of the
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// loop (we always jump on it through a resume), and because it's a
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// `yield`, it has no successors.
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// However, if we resume with .throw() after the yield,
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yield i * 14;
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s += 3;
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} catch (e) {
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i++;
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}
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s += 4;
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if (i < 2) {
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yield i - 1;
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}
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s += 5;
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}
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yield s;
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}
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%PrepareFunctionForOptimization(foo);
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let gen = foo(2);
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assertEquals(17, gen.next().value);
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assertEquals(0, gen.throw().value);
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assertEquals(19, gen.next().value);
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assertEquals(28, gen.next().value);
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assertEquals(23, gen.throw().value);
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assertEquals(undefined, gen.next().value);
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%OptimizeFunctionOnNextCall(foo);
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gen = foo(2);
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assertEquals(17, gen.next().value);
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assertEquals(0, gen.throw().value);
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assertEquals(19, gen.next().value);
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assertEquals(28, gen.next().value);
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assertEquals(23, gen.throw().value);
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assertEquals(undefined, gen.next().value);
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// B1 --> header = <none>
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// B2 --> header = <none>
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// B3 --> header = <none>
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// B4 --> header = <none>
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// B5 --> header = <none>
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// B6 --> header = <none>
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// B7 --> header = <none>
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// B8 --> header = <none>
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// B9 --> header = <none>
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// B10 --> header = <none>
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// B11 --> header = <none>
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// B12 --> header = <none>
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// B13 --> header = <none>
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// B14 --> header = <none>
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// B15 --> header = <none>
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// B16 --> header = <none>
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// B17 --> header = <none>
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// B18 --> header = <none>
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// B19 --> header = B9
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// B20 --> header = <none>
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// B21 --> header = B9
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// B22 --> header = <none>
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// B23 --> header = <none>
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// B24 --> header = B9
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// B25 --> header = B9
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// B26 --> header = B9
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// B27 --> header = <none>
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// B28 --> header = <none>
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// B29 --> header = <none>
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// B30 --> header = <none>
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// B31 --> header = <none>
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