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. 4 5// Flags: --harmony-sharedarraybuffer 6 7function Module(stdlib, foreign, heap, offset) { 8 "use asm"; 9 var MEM8 = new stdlib.Int8Array(heap, offset); 10 var MEM16 = new stdlib.Int16Array(heap, offset); 11 var MEM32 = new stdlib.Int32Array(heap, offset); 12 var MEMU8 = new stdlib.Uint8Array(heap, offset); 13 var MEMU16 = new stdlib.Uint16Array(heap, offset); 14 var MEMU32 = new stdlib.Uint32Array(heap, offset); 15 var or = stdlib.Atomics.or; 16 var fround = stdlib.Math.fround; 17 18 function ori8(i, x) { 19 i = i | 0; 20 x = x | 0; 21 return or(MEM8, i, x)|0; 22 } 23 24 function ori16(i, x) { 25 i = i | 0; 26 x = x | 0; 27 return or(MEM16, i, x)|0; 28 } 29 30 function ori32(i, x) { 31 i = i | 0; 32 x = x | 0; 33 return or(MEM32, i, x)|0; 34 } 35 36 function oru8(i, x) { 37 i = i | 0; 38 x = x >>> 0; 39 return or(MEMU8, i, x)>>>0; 40 } 41 42 function oru16(i, x) { 43 i = i | 0; 44 x = x >>> 0; 45 return or(MEMU16, i, x)>>>0; 46 } 47 48 function oru32(i, x) { 49 i = i | 0; 50 x = x >>> 0; 51 return or(MEMU32, i, x)>>>0; 52 } 53 54 return { 55 ori8: ori8, 56 ori16: ori16, 57 ori32: ori32, 58 oru8: oru8, 59 oru16: oru16, 60 oru32: oru32, 61 }; 62} 63 64var sab = new SharedArrayBuffer(16); 65var m = Module(this, {}, sab); 66 67function clearArray() { 68 var ui8 = new Uint8Array(sab); 69 for (var i = 0; i < sab.byteLength; ++i) { 70 ui8[i] = 0; 71 } 72} 73 74function testElementType(taConstr, f, offset) { 75 clearArray(); 76 77 var ta = new taConstr(sab, offset); 78 var name = Object.prototype.toString.call(ta); 79 assertEquals(0, f(0, 0xf), name); 80 assertEquals(0xf, ta[0]); 81 assertEquals(0xf, f(0, 0x11), name); 82 assertEquals(0x1f, ta[0]); 83 // out of bounds 84 assertEquals(0, f(-1, 0), name); 85 assertEquals(0, f(ta.length, 0), name); 86} 87 88function testElement(m, offset) { 89 testElementType(Int8Array, m.ori8, offset); 90 testElementType(Int16Array, m.ori16, offset); 91 testElementType(Int32Array, m.ori32, offset); 92 testElementType(Uint8Array, m.oru8, offset); 93 testElementType(Uint16Array, m.oru16, offset); 94 testElementType(Uint32Array, m.oru32, offset); 95} 96 97var offset = 0; 98var sab = new SharedArrayBuffer(16); 99var m1 = Module(this, {}, sab, offset); 100testElement(m1, offset); 101 102offset = 32; 103sab = new SharedArrayBuffer(64); 104var m2 = Module(this, {}, sab, offset); 105testElement(m2, offset); 106