59 lines
1.1 KiB
JavaScript
59 lines
1.1 KiB
JavaScript
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// Copyright 2025 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
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(function() {
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var fail;
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let count = 0;
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function bar () {
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if (count > 50) return undefined;
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}
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function soft() {
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try { fail(); } catch (e) {}
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}
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function foo(x) {
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if (x < 3) {
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bar();
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soft();
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if (x == 42) {
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}
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}
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}
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%PrepareFunctionForOptimization(soft);
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%PrepareFunctionForOptimization(foo);
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foo(0);
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foo(0);
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// This will force {bar} to inline and
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// soft deopt due to lack of comparison
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// feedback.
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%PrepareFunctionForOptimization(bar);
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%OptimizeFunctionOnNextCall(foo);
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foo();
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})();
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(function() {
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function testclz(x) {
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for (var i = 0; i < 33; i++) {
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if (x & 0x80000000) return i;
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x <<= 1;
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}
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return 32;
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}
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function f() {
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assertEquals(testclz(0), 32);
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}
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%PrepareFunctionForOptimization(assertEquals);
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%PrepareFunctionForOptimization(f);
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f();
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f();
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%OptimizeMaglevOnNextCall(f);
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f();
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})();
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