| // 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 Int32Div(divisor) { |
| var name = "div_"; |
| if (divisor < 0) { |
| name += "minus_"; |
| } |
| name += Math.abs(divisor); |
| var m = eval("function Module(stdlib, foreign, heap) {\n" |
| + " \"use asm\";\n" |
| + " function " + name + "(dividend) {\n" |
| + " return ((dividend | 0) / " + divisor + ") | 0;\n" |
| + " }\n" |
| + " return { f: " + name + "}\n" |
| + "}; Module"); |
| return m(stdlib, foreign, heap).f; |
| } |
| |
| var divisors = [-2147483648, -32 * 1024, -1000, -16, -7, -2, -1, 0, |
| 1, 3, 4, 10, 64, 100, 1024, 2147483647]; |
| for (var i in divisors) { |
| var divisor = divisors[i]; |
| var div = Int32Div(divisor); |
| for (var dividend = -2147483648; dividend < 2147483648; dividend += 3999773) { |
| assertEquals((dividend / divisor) | 0, div(dividend)); |
| } |
| } |