Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 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. |
| 4 | |
| 5 | // Flags: --allow-natives-syntax |
| 6 | |
| 7 | function assertDoubleBits(hi, lo, x) { |
| 8 | hi = hi | 0; |
| 9 | lo = lo | 0; |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 10 | assertEquals(x, %ConstructDouble(hi, lo)); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 11 | assertEquals(hi, %_DoubleHi(x)); |
| 12 | assertEquals(lo, %_DoubleLo(x)); |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 13 | assertEquals(x, %ConstructDouble(%_DoubleHi(x), %_DoubleLo(x))); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 14 | } |
| 15 | |
| 16 | |
| 17 | var tests = [0x7ff00000, 0x00000000, Infinity, |
| 18 | 0xfff00000, 0x00000000, -Infinity, |
| 19 | 0x80000000, 0x00000000, -0, |
| 20 | 0x400921fb, 0x54442d18, Math.PI, |
| 21 | 0xc00921fb, 0x54442d18, -Math.PI, |
| 22 | 0x4005bf0a, 0x8b145769, Math.E, |
| 23 | 0xc005bf0a, 0x8b145769, -Math.E, |
| 24 | 0xbfe80000, 0x00000000, -0.75]; |
| 25 | |
| 26 | |
| 27 | for (var i = 0; i < tests.length; i += 3) { |
| 28 | assertDoubleBits(tests[i], tests[i + 1], tests[i + 2]); |
| 29 | } |
| 30 | |
| 31 | %OptimizeFunctionOnNextCall(assertDoubleBits); |
| 32 | |
| 33 | for (var i = 0; i < tests.length; i += 3) { |
| 34 | assertDoubleBits(tests[i], tests[i + 1], tests[i + 2]); |
| 35 | assertOptimized(assertDoubleBits); |
| 36 | } |