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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.xor
description: Test Atomics.xor on arrays that allow atomic operations
includes: [testAtomics.js, testBigIntTypedArray.js]
features: [ArrayBuffer, Atomics, BigInt, DataView, SharedArrayBuffer, Symbol, TypedArray]
---*/
// Make it interesting - use non-zero byteOffsets and non-zero indexes.
// And again
// In-bounds boundary cases for indexing
// Atomics.store() computes an index from Idx in the same way as other
// Atomics operations, not quite like view[Idx].
const sab = new SharedArrayBuffer(1024);
const ab = new ArrayBuffer(16);
testWithBigIntTypedArrayConstructors(function(TA) {
const view = new TA(sab, 32, 20);
const control = new TA(ab, 0, 2);
view[8] = 0x33333333n;
control[0] = 0x33333333n;
assert.sameValue(
Atomics.xor(view, 8, 0x55555555n),
control[0],
'Atomics.xor(view, 8, 0x55555555n) returns the value of `control[0]` (0x33333333n)'
);
control[0] = 0x66666666n;
assert.sameValue(
view[8],
control[0],
'The value of view[8] equals the value of `control[0]` (0x66666666n)'
);
assert.sameValue(
Atomics.xor(view, 8, 0xF0F0F0F0n),
control[0],
'Atomics.xor(view, 8, 0xF0F0F0F0) returns the value of `control[0]` (0x66666666n)'
);
control[0] = 0x96969696n;
assert.sameValue(
view[8],
control[0],
'The value of view[8] equals the value of `control[0]` (0x96969696n)'
);
view[3] = -5n;
control[0] = -5n;
assert.sameValue(
Atomics.xor(view, 3, 0n),
control[0],
'Atomics.xor(view, 3, 0n) returns the value of `control[0]` (-5n)'
);
assert.sameValue(
view[3],
control[0],
'The value of view[3] equals the value of `control[0]` (-5n)'
);
control[0] = 12345n;
view[3] = 12345n;
assert.sameValue(
Atomics.xor(view, 3, 0n),
control[0],
'Atomics.xor(view, 3, 0n) returns the value of `control[0]` (12345n)'
);
assert.sameValue(
view[3],
control[0],
'The value of view[3] equals the value of `control[0]` (12345n)'
);
control[0] = 123456789n;
view[3] = 123456789n;
assert.sameValue(
Atomics.xor(view, 3, 0n),
control[0],
'Atomics.xor(view, 3, 0n) returns the value of `control[0]` (123456789n)'
);
assert.sameValue(
view[3],
control[0],
'The value of view[3] equals the value of `control[0]` (123456789n)'
);
testWithAtomicsInBoundsIndices(function(IdxGen) {
let Idx = IdxGen(view);
view.fill(0n);
Atomics.store(view, Idx, 37n);
assert.sameValue(Atomics.xor(view, Idx, 0n), 37n, 'Atomics.xor(view, Idx, 0n) returns 37n');
});
});
reportCompare(0, 0);
|
