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 add = stdlib.Atomics.add; 16 var fround = stdlib.Math.fround; 17 18 function addi8(i, x) { 19 i = i | 0; 20 x = x | 0; 21 return add(MEM8, i, x)|0; 22 } 23 24 function addi16(i, x) { 25 i = i | 0; 26 x = x | 0; 27 return add(MEM16, i, x)|0; 28 } 29 30 function addi32(i, x) { 31 i = i | 0; 32 x = x | 0; 33 return add(MEM32, i, x)|0; 34 } 35 36 function addu8(i, x) { 37 i = i | 0; 38 x = x >>> 0; 39 return add(MEMU8, i, x)>>>0; 40 } 41 42 function addu16(i, x) { 43 i = i | 0; 44 x = x >>> 0; 45 return add(MEMU16, i, x)>>>0; 46 } 47 48 function addu32(i, x) { 49 i = i | 0; 50 x = x >>> 0; 51 return add(MEMU32, i, x)>>>0; 52 } 53 54 return { 55 addi8: addi8, 56 addi16: addi16, 57 addi32: addi32, 58 addu8: addu8, 59 addu16: addu16, 60 addu32: addu32, 61 }; 62} 63 64function clearArray() { 65 var ui8 = new Uint8Array(sab); 66 for (var i = 0; i < sab.byteLength; ++i) { 67 ui8[i] = 0; 68 } 69} 70 71function testElementType(taConstr, f, offset) { 72 clearArray(); 73 74 var ta = new taConstr(sab, offset); 75 var name = Object.prototype.toString.call(ta); 76 assertEquals(0, f(0, 10), name); 77 assertEquals(10, ta[0]); 78 assertEquals(10, f(0, 10), name); 79 assertEquals(20, ta[0]); 80 // out of bounds 81 assertThrows(function() { f(-1, 0); }); 82 assertThrows(function() { f(ta.length, 0); }); 83} 84 85function testElement(m, offset) { 86 testElementType(Int8Array, m.addi8, offset); 87 testElementType(Int16Array, m.addi16, offset); 88 testElementType(Int32Array, m.addi32, offset); 89 testElementType(Uint8Array, m.addu8, offset); 90 testElementType(Uint16Array, m.addu16, offset); 91 testElementType(Uint32Array, m.addu32, offset); 92} 93 94var offset = 0; 95var sab = new SharedArrayBuffer(16); 96var m1 = Module(this, {}, sab, offset); 97testElement(m1, offset); 98 99offset = 32; 100sab = new SharedArrayBuffer(64); 101var m2 = Module(this, {}, sab, offset); 102testElement(m2, offset); 103