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// |reftest| 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) 2018 Rick Waldron. All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.
/*---
esid: sec-atomics.store
description: >
Atomics.store returns the newly stored value
info: |
Atomics.store( typedArray, index, value )
...
3. Let v be ? ToInteger(value).
...
9. Perform SetValueInBuffer(buffer, indexedPosition,
elementType, v, true, "SeqCst").
10. Return v.
features: [Atomics, SharedArrayBuffer, TypedArray]
---*/
const i32a = new Int32Array(
new SharedArrayBuffer(Int32Array.BYTES_PER_ELEMENT * 4)
);
const update = 0b00000001000000001000000010000001;
assert.sameValue(
Atomics.store(i32a, 0, update),
update,
'Atomics.store(i32a, 0, update) returns the value of `update` (0b00000001000000001000000010000001)'
);
assert.sameValue(
i32a[0],
update,
'The value of i32a[0] equals the value of `update` (0b00000001000000001000000010000001)'
);
reportCompare(0, 0);
|
