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1 // Copyright 2015 the V8 project authors. All rights reserved. | 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 | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 // Flags: --harmony-sharedarraybuffer | 5 // Flags: --harmony-sharedarraybuffer |
6 | 6 |
7 function Module(stdlib, foreign, heap) { | 7 function Module(stdlib, foreign, heap, offset) { |
8 "use asm"; | 8 "use asm"; |
9 var MEM8 = new stdlib.Int8Array(heap); | 9 var MEM8 = new stdlib.Int8Array(heap, offset); |
10 var MEM16 = new stdlib.Int16Array(heap); | 10 var MEM16 = new stdlib.Int16Array(heap, offset); |
11 var MEM32 = new stdlib.Int32Array(heap); | 11 var MEM32 = new stdlib.Int32Array(heap, offset); |
12 var MEMU8 = new stdlib.Uint8Array(heap); | 12 var MEMU8 = new stdlib.Uint8Array(heap, offset); |
13 var MEMU16 = new stdlib.Uint16Array(heap); | 13 var MEMU16 = new stdlib.Uint16Array(heap, offset); |
14 var MEMU32 = new stdlib.Uint32Array(heap); | 14 var MEMU32 = new stdlib.Uint32Array(heap, offset); |
15 var load = stdlib.Atomics.load; | 15 var load = stdlib.Atomics.load; |
16 var fround = stdlib.Math.fround; | 16 var fround = stdlib.Math.fround; |
17 | 17 |
18 function loadi8(i) { | 18 function loadi8(i) { |
19 i = i | 0; | 19 i = i | 0; |
20 return load(MEM8, i)|0; | 20 return load(MEM8, i)|0; |
21 } | 21 } |
22 | 22 |
23 function loadi16(i) { | 23 function loadi16(i) { |
24 i = i | 0; | 24 i = i | 0; |
(...skipping 23 matching lines...) Expand all Loading... |
48 return { | 48 return { |
49 loadi8: loadi8, | 49 loadi8: loadi8, |
50 loadi16: loadi16, | 50 loadi16: loadi16, |
51 loadi32: loadi32, | 51 loadi32: loadi32, |
52 loadu8: loadu8, | 52 loadu8: loadu8, |
53 loadu16: loadu16, | 53 loadu16: loadu16, |
54 loadu32: loadu32, | 54 loadu32: loadu32, |
55 }; | 55 }; |
56 } | 56 } |
57 | 57 |
58 var sab = new SharedArrayBuffer(16); | |
59 var m = Module(this, {}, sab); | |
60 | |
61 function clearArray() { | 58 function clearArray() { |
62 var ui8 = new Uint8Array(sab); | 59 var ui8 = new Uint8Array(sab); |
63 for (var i = 0; i < sab.byteLength; ++i) { | 60 for (var i = 0; i < sab.byteLength; ++i) { |
64 ui8[i] = 0; | 61 ui8[i] = 0; |
65 } | 62 } |
66 } | 63 } |
67 | 64 |
68 function testElementType(taConstr, f, oobValue) { | 65 function testElementType(taConstr, f, oobValue, offset) { |
69 clearArray(); | 66 clearArray(); |
70 | 67 |
71 var ta = new taConstr(sab); | 68 var ta = new taConstr(sab, offset); |
72 var name = Object.prototype.toString.call(ta); | 69 var name = Object.prototype.toString.call(ta); |
73 ta[0] = 10; | 70 ta[0] = 10; |
74 assertEquals(10, f(0), name); | 71 assertEquals(10, f(0), name); |
75 assertEquals(0, f(1), name); | 72 assertEquals(0, f(1), name); |
76 // out of bounds | 73 // out of bounds |
77 assertEquals(oobValue, f(-1), name); | 74 assertEquals(oobValue, f(-1), name); |
78 assertEquals(oobValue, f(ta.length), name); | 75 assertEquals(oobValue, f(ta.length), name); |
79 } | 76 } |
80 | 77 |
81 testElementType(Int8Array, m.loadi8, 0); | 78 function testElement(m, offset) { |
82 testElementType(Int16Array, m.loadi16, 0); | 79 testElementType(Int8Array, m.loadi8, 0, offset); |
83 testElementType(Int32Array, m.loadi32, 0); | 80 testElementType(Int16Array, m.loadi16, 0, offset); |
84 testElementType(Uint8Array, m.loadu8, 0); | 81 testElementType(Int32Array, m.loadi32, 0, offset); |
85 testElementType(Uint16Array, m.loadu16, 0); | 82 testElementType(Uint8Array, m.loadu8, 0, offset); |
86 testElementType(Uint32Array, m.loadu32, 0); | 83 testElementType(Uint16Array, m.loadu16, 0, offset); |
| 84 testElementType(Uint32Array, m.loadu32, 0, offset); |
| 85 } |
| 86 |
| 87 var offset = 0; |
| 88 var sab = new SharedArrayBuffer(16); |
| 89 var m1 = Module(this, {}, sab, offset); |
| 90 testElement(m1, offset); |
| 91 |
| 92 offset = 32; |
| 93 sab = new SharedArrayBuffer(64); |
| 94 var m2 = Module(this, {}, sab, offset); |
| 95 testElement(m2, offset); |
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