mirror of https://github.com/lukechilds/node.git
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
121 lines
3.3 KiB
121 lines
3.3 KiB
// Copyright 2015 the V8 project authors. All rights reserved.
|
|
// Use of this source code is governed by a BSD-style license that can be
|
|
// found in the LICENSE file.
|
|
|
|
// Flags: --harmony-atomics --harmony-sharedarraybuffer
|
|
|
|
function Module(stdlib, foreign, heap) {
|
|
"use asm";
|
|
var MEM8 = new stdlib.Int8Array(heap);
|
|
var MEM16 = new stdlib.Int16Array(heap);
|
|
var MEM32 = new stdlib.Int32Array(heap);
|
|
var MEMU8 = new stdlib.Uint8Array(heap);
|
|
var MEMU16 = new stdlib.Uint16Array(heap);
|
|
var MEMU32 = new stdlib.Uint32Array(heap);
|
|
var MEMF32 = new stdlib.Float32Array(heap);
|
|
var MEMF64 = new stdlib.Float64Array(heap);
|
|
var compareExchange = stdlib.Atomics.compareExchange;
|
|
var fround = stdlib.Math.fround;
|
|
|
|
function compareExchangei8(i, o, n) {
|
|
i = i | 0;
|
|
o = o | 0;
|
|
n = n | 0;
|
|
return compareExchange(MEM8, i, o, n)|0;
|
|
}
|
|
|
|
function compareExchangei16(i, o, n) {
|
|
i = i | 0;
|
|
o = o | 0;
|
|
n = n | 0;
|
|
return compareExchange(MEM16, i, o, n)|0;
|
|
}
|
|
|
|
function compareExchangei32(i, o, n) {
|
|
i = i | 0;
|
|
o = o | 0;
|
|
n = n | 0;
|
|
return compareExchange(MEM32, i, o, n)|0;
|
|
}
|
|
|
|
function compareExchangeu8(i, o, n) {
|
|
i = i | 0;
|
|
o = o >>> 0;
|
|
n = n >>> 0;
|
|
return compareExchange(MEMU8, i, o, n)>>>0;
|
|
}
|
|
|
|
function compareExchangeu16(i, o, n) {
|
|
i = i | 0;
|
|
o = o >>> 0;
|
|
n = n >>> 0;
|
|
return compareExchange(MEMU16, i, o, n)>>>0;
|
|
}
|
|
|
|
function compareExchangeu32(i, o, n) {
|
|
i = i | 0;
|
|
o = o >>> 0;
|
|
n = n >>> 0;
|
|
return compareExchange(MEMU32, i, o, n)>>>0;
|
|
}
|
|
|
|
function compareExchangef32(i, o, n) {
|
|
i = i | 0;
|
|
o = fround(o);
|
|
n = fround(n);
|
|
return fround(compareExchange(MEMF32, i, o, n));
|
|
}
|
|
|
|
function compareExchangef64(i, o, n) {
|
|
i = i | 0;
|
|
o = +o;
|
|
n = +n;
|
|
return +compareExchange(MEMF64, i, o, n);
|
|
}
|
|
|
|
return {
|
|
compareExchangei8: compareExchangei8,
|
|
compareExchangei16: compareExchangei16,
|
|
compareExchangei32: compareExchangei32,
|
|
compareExchangeu8: compareExchangeu8,
|
|
compareExchangeu16: compareExchangeu16,
|
|
compareExchangeu32: compareExchangeu32,
|
|
compareExchangef32: compareExchangef32,
|
|
compareExchangef64: compareExchangef64
|
|
};
|
|
}
|
|
|
|
var sab = new SharedArrayBuffer(16);
|
|
var m = Module(this, {}, sab);
|
|
|
|
function clearArray() {
|
|
var ui8 = new Uint8Array(sab);
|
|
for (var i = 0; i < sab.byteLength; ++i) {
|
|
ui8[i] = 0;
|
|
}
|
|
}
|
|
|
|
function testElementType(taConstr, f, oobValue) {
|
|
clearArray();
|
|
|
|
var ta = new taConstr(sab);
|
|
var name = Object.prototype.toString.call(ta);
|
|
assertEquals(0, ta[0]);
|
|
assertEquals(0, f(0, 0, 50), name);
|
|
assertEquals(50, ta[0]);
|
|
// Value is not equal to 0, so compareExchange won't store 100
|
|
assertEquals(50, f(0, 0, 100), name);
|
|
assertEquals(50, ta[0]);
|
|
// out of bounds
|
|
assertEquals(oobValue, f(-1, 0, 0), name);
|
|
assertEquals(oobValue, f(ta.length, 0, 0), name);
|
|
}
|
|
|
|
testElementType(Int8Array, m.compareExchangei8, 0);
|
|
testElementType(Int16Array, m.compareExchangei16, 0);
|
|
testElementType(Int32Array, m.compareExchangei32, 0);
|
|
testElementType(Uint8Array, m.compareExchangeu8, 0);
|
|
testElementType(Uint16Array, m.compareExchangeu16, 0);
|
|
testElementType(Uint32Array, m.compareExchangeu32, 0);
|
|
testElementType(Float32Array, m.compareExchangef32, NaN);
|
|
testElementType(Float64Array, m.compareExchangef64, NaN);
|
|
|