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PR-URL: https://github.com/nodejs/node/pull/28918 Reviewed-By: Colin Ihrig <cjihrig@gmail.com> Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl> Reviewed-By: Jiawen Geng <technicalcute@gmail.com> Reviewed-By: Rich Trott <rtrott@gmail.com>
38 lines
1007 B
JavaScript
38 lines
1007 B
JavaScript
// Copyright 2014 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 --use-osr
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var counter = 111;
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function gen(w) { // defeat compiler cache.
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var num = counter++;
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var Z = [ "", "", "", ];
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Z[w] = "%OptimizeOsr(); %PrepareFunctionForOptimization(f" + num + ")";
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var src =
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"function f" + num + "(a,b,c) {" +
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" var x = 0;" +
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" var y = 0;" +
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" var z = 0;" +
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" while (a > 0) { " + Z[0] + "; x += 19; a--; }" +
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" while (b > 0) { " + Z[1] + "; y += 23; b--; }" +
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" while (c > 0) { " + Z[2] + "; z += 29; c--; }" +
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" return x + y + z;" +
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"} f" + num;
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return eval(src);
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}
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%PrepareFunctionForOptimization(gen);
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function check(x,a,b,c) {
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for (var i = 0; i < 3; i++) {
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var f = gen(i);
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%PrepareFunctionForOptimization(f);
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assertEquals(x, f(a, b, c));
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}
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}
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check(213, 3,3,3);
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check(365, 4,5,6);
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check(6948, 99,98,97);
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