1 // Copyright 2014 the V8 project authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file.
5 // Flags: --allow-natives-syntax
7 [NaN, Infinity, -Infinity, 0, -0, "abc", "Infinity", "-Infinity", {}].forEach(
9 assertEquals(32, Math.clz32(x));
14 for (var i = 0; i < 33; i++) {
15 if (x & 0x80000000) return i;
23 var max = Math.pow(2, e);
24 for (var x = 0; x < max; x = x * 1.01 + 1) {
25 assertEquals(testclz(x), Math.clz32(x));
26 assertEquals(testclz(-x), Math.clz32(-x));
27 assertEquals(testclz(x), Math.clz32({ valueOf: function() { return x; } }));
28 assertEquals(testclz(-x),
29 Math.clz32({ toString: function() { return -x; } }));
35 %OptimizeFunctionOnNextCall(f);