// Copyright 2014 the V8 project authors. All rights reserved. // Use of this source code is governed by a BSD-style license that can be // found in the LICENSE file. var stdlib = {}; var foreign = {}; var heap = new ArrayBuffer(64 * 1024); function Uint32Div(divisor) { var name = "div_"; name += divisor; var m = eval( 'function Module(stdlib, foreign, heap) {\n' + ' "use asm";\n' + ' function ' + name + '(dividend) {\n' + ' dividend = dividend | 0;\n' + ' return ((dividend >>> 0) / ' + divisor + ') | 0;\n' + ' }\n' + ' return { f: ' + name + '}\n' + '}; Module'); return m(stdlib, foreign, heap).f; } var divisors = [0, 1, 3, 4, 10, 42, 64, 100, 1024, 2147483647, 4294967295]; for (var i in divisors) { var divisor = divisors[i]; var div = Uint32Div(divisor); for (var dividend = 0; dividend < 4294967296; dividend += 3999773) { assertEquals((dividend / divisor) | 0, div(dividend)); } } var div = (function(stdlib, foreign, heap) { "use asm"; function div(dividend, divisor) { dividend = dividend | 0; divisor = divisor | 0; return (dividend >>> 0) / (divisor >>> 0) | 0; } return {div: div}; })(stdlib, foreign, heap).div; for (var i in divisors) { var divisor = divisors[i]; for (var dividend = 0; dividend < 4294967296; dividend += 3999773) { assertEquals((dividend >>> 0) / (divisor >>> 0) | 0, div(dividend, divisor)); } }