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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) { |
8 "use asm"; | 8 "use asm"; |
9 var MEM8 = new stdlib.Int8Array(heap); | 9 var MEM8 = new stdlib.Int8Array(heap); |
10 var MEM16 = new stdlib.Int16Array(heap); | 10 var MEM16 = new stdlib.Int16Array(heap); |
11 var MEM32 = new stdlib.Int32Array(heap); | 11 var MEM32 = new stdlib.Int32Array(heap); |
12 var MEMU8 = new stdlib.Uint8Array(heap); | 12 var MEMU8 = new stdlib.Uint8Array(heap); |
13 var MEMU16 = new stdlib.Uint16Array(heap); | 13 var MEMU16 = new stdlib.Uint16Array(heap); |
14 var MEMU32 = new stdlib.Uint32Array(heap); | 14 var MEMU32 = new stdlib.Uint32Array(heap); |
15 var MEMF32 = new stdlib.Float32Array(heap); | |
16 var MEMF64 = new stdlib.Float64Array(heap); | |
17 var compareExchange = stdlib.Atomics.compareExchange; | 15 var compareExchange = stdlib.Atomics.compareExchange; |
18 var fround = stdlib.Math.fround; | 16 var fround = stdlib.Math.fround; |
19 | 17 |
20 function compareExchangei8(i, o, n) { | 18 function compareExchangei8(i, o, n) { |
21 i = i | 0; | 19 i = i | 0; |
22 o = o | 0; | 20 o = o | 0; |
23 n = n | 0; | 21 n = n | 0; |
24 return compareExchange(MEM8, i, o, n)|0; | 22 return compareExchange(MEM8, i, o, n)|0; |
25 } | 23 } |
26 | 24 |
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52 return compareExchange(MEMU16, i, o, n)>>>0; | 50 return compareExchange(MEMU16, i, o, n)>>>0; |
53 } | 51 } |
54 | 52 |
55 function compareExchangeu32(i, o, n) { | 53 function compareExchangeu32(i, o, n) { |
56 i = i | 0; | 54 i = i | 0; |
57 o = o >>> 0; | 55 o = o >>> 0; |
58 n = n >>> 0; | 56 n = n >>> 0; |
59 return compareExchange(MEMU32, i, o, n)>>>0; | 57 return compareExchange(MEMU32, i, o, n)>>>0; |
60 } | 58 } |
61 | 59 |
62 function compareExchangef32(i, o, n) { | |
63 i = i | 0; | |
64 o = fround(o); | |
65 n = fround(n); | |
66 return fround(compareExchange(MEMF32, i, o, n)); | |
67 } | |
68 | |
69 function compareExchangef64(i, o, n) { | |
70 i = i | 0; | |
71 o = +o; | |
72 n = +n; | |
73 return +compareExchange(MEMF64, i, o, n); | |
74 } | |
75 | |
76 return { | 60 return { |
77 compareExchangei8: compareExchangei8, | 61 compareExchangei8: compareExchangei8, |
78 compareExchangei16: compareExchangei16, | 62 compareExchangei16: compareExchangei16, |
79 compareExchangei32: compareExchangei32, | 63 compareExchangei32: compareExchangei32, |
80 compareExchangeu8: compareExchangeu8, | 64 compareExchangeu8: compareExchangeu8, |
81 compareExchangeu16: compareExchangeu16, | 65 compareExchangeu16: compareExchangeu16, |
82 compareExchangeu32: compareExchangeu32, | 66 compareExchangeu32: compareExchangeu32, |
83 compareExchangef32: compareExchangef32, | |
84 compareExchangef64: compareExchangef64 | |
85 }; | 67 }; |
86 } | 68 } |
87 | 69 |
88 var sab = new SharedArrayBuffer(16); | 70 var sab = new SharedArrayBuffer(16); |
89 var m = Module(this, {}, sab); | 71 var m = Module(this, {}, sab); |
90 | 72 |
91 function clearArray() { | 73 function clearArray() { |
92 var ui8 = new Uint8Array(sab); | 74 var ui8 = new Uint8Array(sab); |
93 for (var i = 0; i < sab.byteLength; ++i) { | 75 for (var i = 0; i < sab.byteLength; ++i) { |
94 ui8[i] = 0; | 76 ui8[i] = 0; |
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110 assertEquals(oobValue, f(-1, 0, 0), name); | 92 assertEquals(oobValue, f(-1, 0, 0), name); |
111 assertEquals(oobValue, f(ta.length, 0, 0), name); | 93 assertEquals(oobValue, f(ta.length, 0, 0), name); |
112 } | 94 } |
113 | 95 |
114 testElementType(Int8Array, m.compareExchangei8, 0); | 96 testElementType(Int8Array, m.compareExchangei8, 0); |
115 testElementType(Int16Array, m.compareExchangei16, 0); | 97 testElementType(Int16Array, m.compareExchangei16, 0); |
116 testElementType(Int32Array, m.compareExchangei32, 0); | 98 testElementType(Int32Array, m.compareExchangei32, 0); |
117 testElementType(Uint8Array, m.compareExchangeu8, 0); | 99 testElementType(Uint8Array, m.compareExchangeu8, 0); |
118 testElementType(Uint16Array, m.compareExchangeu16, 0); | 100 testElementType(Uint16Array, m.compareExchangeu16, 0); |
119 testElementType(Uint32Array, m.compareExchangeu32, 0); | 101 testElementType(Uint32Array, m.compareExchangeu32, 0); |
120 testElementType(Float32Array, m.compareExchangef32, NaN); | |
121 testElementType(Float64Array, m.compareExchangef64, NaN); | |
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