Source code
Revision control
Copy as Markdown
Other Tools
// |reftest| shell-option(--enable-float16array) skip-if(!this.hasOwnProperty('Atomics')||!this.hasOwnProperty('SharedArrayBuffer')||(this.hasOwnProperty('getBuildConfiguration')&&getBuildConfiguration('arm64-simulator'))) -- Atomics,SharedArrayBuffer is not enabled unconditionally, ARM64 Simulator cannot emulate atomics
// Copyright (C) 2017 Mozilla Corporation. All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.
/*---
esid: sec-atomics.or
description: Test Atomics.or on arrays that allow atomic operations
includes: [testAtomics.js, testTypedArray.js]
features: [ArrayBuffer, Atomics, DataView, SharedArrayBuffer, Symbol, TypedArray]
---*/
var sab = new SharedArrayBuffer(1024);
var ab = new ArrayBuffer(16);
var views = nonClampedIntArrayConstructors.slice();
testWithTypedArrayConstructors(function(TA) {
// Make it interesting - use non-zero byteOffsets and non-zero indexes.
var view = new TA(sab, 32, 20);
var control = new TA(ab, 0, 2);
view[8] = 0x33333333;
control[0] = 0x33333333;
assert.sameValue(Atomics.or(view, 8, 0x55555555), control[0],
'Atomics.or(view, 8, 0x55555555) returns the value of `control[0]` (0x33333333)');
control[0] = 0x77777777;
assert.sameValue(
view[8],
control[0],
'The value of view[8] equals the value of `control[0]` (0x77777777)'
);
assert.sameValue(Atomics.or(view, 8, 0xF0F0F0F0), control[0],
'Atomics.or(view, 8, 0xF0F0F0F0) returns the value of `control[0]` (0x77777777)');
control[0] = 0xF7F7F7F7;
assert.sameValue(
view[8],
control[0],
'The value of view[8] equals the value of `control[0]` (0xF7F7F7F7)'
);
view[3] = -5;
control[0] = -5;
assert.sameValue(Atomics.or(view, 3, 0), control[0],
'Atomics.or(view, 3, 0) returns the value of `control[0]` (-5)');
assert.sameValue(
view[3],
control[0],
'The value of view[3] equals the value of `control[0]` (-5)'
);
control[0] = 12345;
view[3] = 12345;
assert.sameValue(Atomics.or(view, 3, 0), control[0],
'Atomics.or(view, 3, 0) returns the value of `control[0]` (12345)');
assert.sameValue(
view[3],
control[0],
'The value of view[3] equals the value of `control[0]` (12345)'
);
control[0] = 123456789;
view[3] = 123456789;
assert.sameValue(Atomics.or(view, 3, 0), control[0],
'Atomics.or(view, 3, 0) returns the value of `control[0]` (123456789)');
assert.sameValue(
view[3],
control[0],
'The value of view[3] equals the value of `control[0]` (123456789)'
);
// In-bounds boundary cases for indexing
testWithAtomicsInBoundsIndices(function(IdxGen) {
let Idx = IdxGen(view);
view.fill(0);
// Atomics.store() computes an index from Idx in the same way as other
// Atomics operations, not quite like view[Idx].
Atomics.store(view, Idx, 37);
assert.sameValue(Atomics.or(view, Idx, 0), 37, 'Atomics.or(view, Idx, 0) returns 37');
});
}, views);
reportCompare(0, 0);