good-views.js (2783B)
1 // |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 2 // Copyright (C) 2017 Mozilla Corporation. All rights reserved. 3 // This code is governed by the BSD license found in the LICENSE file. 4 5 /*--- 6 esid: sec-atomics.and 7 description: Test Atomics.and on arrays that allow atomic operations 8 includes: [testAtomics.js, testTypedArray.js] 9 features: [ArrayBuffer, Atomics, DataView, SharedArrayBuffer, Symbol, TypedArray] 10 ---*/ 11 12 const sab = new SharedArrayBuffer(1024); 13 const ab = new ArrayBuffer(16); 14 const views = nonClampedIntArrayConstructors.slice(); 15 16 testWithTypedArrayConstructors(function(TA) { 17 // Make it interesting - use non-zero byteOffsets and non-zero indexes. 18 19 const view = new TA(sab, 32, 20); 20 const control = new TA(ab, 0, 2); 21 22 view[8] = 0x33333333; 23 control[0] = 0x33333333; 24 assert.sameValue(Atomics.and(view, 8, 0x55555555), control[0], 25 'Atomics.and(view, 8, 0x55555555) returns the value of `control[0]` (0x33333333)'); 26 27 control[0] = 0x11111111; 28 assert.sameValue( 29 view[8], 30 control[0], 31 'The value of view[8] equals the value of `control[0]` (0x11111111)' 32 ); 33 assert.sameValue(Atomics.and(view, 8, 0xF0F0F0F0), control[0], 34 'Atomics.and(view, 8, 0xF0F0F0F0) returns the value of `control[0]` (0x11111111)'); 35 36 control[0] = 0x10101010; 37 assert.sameValue( 38 view[8], 39 control[0], 40 'The value of view[8] equals the value of `control[0]` (0x10101010)' 41 ); 42 43 view[3] = -5; 44 control[0] = -5; 45 assert.sameValue(Atomics.and(view, 3, 0), control[0], 46 'Atomics.and(view, 3, 0) returns the value of `control[0]` (-5)'); 47 assert.sameValue(view[3], 0, 'The value of view[3] is 0'); 48 49 control[0] = 12345; 50 view[3] = 12345; 51 assert.sameValue(Atomics.and(view, 3, 0), control[0], 52 'Atomics.and(view, 3, 0) returns the value of `control[0]` (12345)'); 53 assert.sameValue(view[3], 0, 'The value of view[3] is 0'); 54 55 control[0] = 123456789; 56 view[3] = 123456789; 57 assert.sameValue(Atomics.and(view, 3, 0), control[0], 58 'Atomics.and(view, 3, 0) returns the value of `control[0]` (123456789)'); 59 assert.sameValue(view[3], 0, 'The value of view[3] is 0'); 60 61 // In-bounds boundary cases for indexing 62 testWithAtomicsInBoundsIndices(function(IdxGen) { 63 let Idx = IdxGen(view); 64 view.fill(0); 65 // Atomics.store() computes an index from Idx in the same way as other 66 // Atomics operations, not quite like view[Idx]. 67 Atomics.store(view, Idx, 37); 68 assert.sameValue(Atomics.and(view, Idx, 0), 37, 'Atomics.and(view, Idx, 0) returns 37'); 69 }); 70 }, views); 71 72 reportCompare(0, 0);