1 // Copyright 2015 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
9 var heap = new ArrayBuffer(64 * 1024);
12 var m = (function(stdlib, foreign, heap) {
16 return %_DoubleHi(i)|0;
21 return %_DoubleHi(i)+%_DoubleHi(j)|0;
23 return { hi1: hi1, hi2: hi2 };
24 })(stdlib, foreign, heap);
26 assertEquals(0, m.hi1(0.0));
27 assertEquals(-2147483648, m.hi1(-0.0));
28 assertEquals(2146435072, m.hi1(Infinity));
29 assertEquals(-1048576, m.hi1(-Infinity));
30 assertEquals(0, m.hi2(0.0, 0.0));
31 assertEquals(-2147483648, m.hi2(0.0, -0.0));
32 assertEquals(-2147483648, m.hi2(-0.0, 0.0));
33 assertEquals(0, m.hi2(-0.0, -0.0));
34 for (var i = -2147483648; i < 2147483648; i += 3999773) {
35 assertEquals(%_DoubleHi(i), m.hi1(i));
36 assertEquals(i, m.hi1(%ConstructDouble(i, 0)));
37 assertEquals(i, m.hi1(%ConstructDouble(i, i)));
38 assertEquals(i+i|0, m.hi2(%ConstructDouble(i, 0), %ConstructDouble(i, 0)));
39 assertEquals(i+i|0, m.hi2(%ConstructDouble(i, i), %ConstructDouble(i, i)));