Adding upstream version 115.7.0esr.upstream/115.7.0esrupstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

19 files changed, 632 insertions, 0 deletions

diff --git a/js/src/tests/test262/built-ins/Atomics/xor/bad-range.js b/js/src/tests/test262/built-ins/Atomics/xor/bad-range.js
new file mode 100644
index 0000000000..4aae0e925f
--- /dev/null
+++ b/js/src/tests/test262/built-ins/Atomics/xor/bad-range.js
@@ -0,0 +1,25 @@
+// |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) 2017 Mozilla Corporation.  All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+esid: sec-atomics.xor
+description: >
+  Test range checking of Atomics.xor on arrays that allow atomic operations
+includes: [testAtomics.js, testTypedArray.js]
+features: [ArrayBuffer, Atomics, DataView, SharedArrayBuffer, Symbol, TypedArray]
+---*/
+
+var sab = new SharedArrayBuffer(Int32Array.BYTES_PER_ELEMENT * 2);
+var views = intArrayConstructors.slice();
+
+testWithTypedArrayConstructors(function(TA) {
+  let view = new TA(sab);
+  testWithAtomicsOutOfBoundsIndices(function(IdxGen) {
+    assert.throws(RangeError, function() {
+      Atomics.xor(view, IdxGen(view), 0);
+    }, '`Atomics.xor(view, IdxGen(view), 0)` throws RangeError');
+  });
+}, views);
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/built-ins/Atomics/xor/bigint/bad-range.js b/js/src/tests/test262/built-ins/Atomics/xor/bigint/bad-range.js
new file mode 100644
index 0000000000..e1f576554e
--- /dev/null
+++ b/js/src/tests/test262/built-ins/Atomics/xor/bigint/bad-range.js
@@ -0,0 +1,24 @@
+// |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 range checking of Atomics.xor on arrays that allow atomic operations
+includes: [testAtomics.js, testBigIntTypedArray.js]
+features: [ArrayBuffer, Atomics, BigInt, DataView, SharedArrayBuffer, Symbol, TypedArray]
+---*/
+
+var buffer = new SharedArrayBuffer(BigInt64Array.BYTES_PER_ELEMENT * 2);
+
+testWithBigIntTypedArrayConstructors(function(TA) {
+  let view = new TA(buffer);
+  testWithAtomicsOutOfBoundsIndices(function(IdxGen) {
+    assert.throws(RangeError, function() {
+      Atomics.xor(view, IdxGen(view), 10);
+    }, '`Atomics.xor(view, IdxGen(view), 10)` throws RangeError');
+  });
+});
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/built-ins/Atomics/xor/bigint/browser.js b/js/src/tests/test262/built-ins/Atomics/xor/bigint/browser.js
new file mode 100644
index 0000000000..e69de29bb2
--- /dev/null
+++ b/js/src/tests/test262/built-ins/Atomics/xor/bigint/browser.js
diff --git a/js/src/tests/test262/built-ins/Atomics/xor/bigint/good-views.js b/js/src/tests/test262/built-ins/Atomics/xor/bigint/good-views.js
new file mode 100644
index 0000000000..326539197d
--- /dev/null
+++ b/js/src/tests/test262/built-ins/Atomics/xor/bigint/good-views.js
@@ -0,0 +1,105 @@
+// |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);
diff --git a/js/src/tests/test262/built-ins/Atomics/xor/bigint/non-shared-bufferdata.js b/js/src/tests/test262/built-ins/Atomics/xor/bigint/non-shared-bufferdata.js
new file mode 100644
index 0000000000..75843f227d
--- /dev/null
+++ b/js/src/tests/test262/built-ins/Atomics/xor/bigint/non-shared-bufferdata.js
@@ -0,0 +1,18 @@
+// |reftest| skip-if(!this.hasOwnProperty('Atomics')) -- Atomics is not enabled unconditionally
+// Copyright (C) 2020 Rick Waldron.  All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+esid: sec-atomics.xor
+description: >
+  Atomics.xor will operate on TA when TA.buffer is not a SharedArrayBuffer
+includes: [testBigIntTypedArray.js]
+features: [ArrayBuffer, Atomics, BigInt, TypedArray]
+---*/
+testWithBigIntTypedArrayConstructors(TA => {
+  const buffer = new ArrayBuffer(TA.BYTES_PER_ELEMENT * 4);
+  const view = new TA(buffer);
+  assert.sameValue(Atomics.xor(view, 0, 1n), 0n, 'Atomics.xor(view, 0, 1n) returns 0n');
+  assert.sameValue(Atomics.load(view, 0), 1n, 'Atomics.load(view, 0) returns 1n');
+});
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/built-ins/Atomics/xor/bigint/shell.js b/js/src/tests/test262/built-ins/Atomics/xor/bigint/shell.js
new file mode 100644
index 0000000000..90ee9c114d
--- /dev/null
+++ b/js/src/tests/test262/built-ins/Atomics/xor/bigint/shell.js
@@ -0,0 +1,42 @@
+// GENERATED, DO NOT EDIT
+// file: testBigIntTypedArray.js
+// Copyright (C) 2015 André Bargull. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+description: |
+    Collection of functions used to assert the correctness of BigInt TypedArray objects.
+defines:
+  - TypedArray
+  - testWithBigIntTypedArrayConstructors
+---*/
+
+/**
+ * The %TypedArray% intrinsic constructor function.
+ */
+var TypedArray = Object.getPrototypeOf(Int8Array);
+
+/**
+ * Calls the provided function for every typed array constructor.
+ *
+ * @param {typedArrayConstructorCallback} f - the function to call for each typed array constructor.
+ * @param {Array} selected - An optional Array with filtered typed arrays
+ */
+function testWithBigIntTypedArrayConstructors(f, selected) {
+  /**
+   * Array containing every BigInt typed array constructor.
+   */
+  var constructors = selected || [
+    BigInt64Array,
+    BigUint64Array
+  ];
+
+  for (var i = 0; i < constructors.length; ++i) {
+    var constructor = constructors[i];
+    try {
+      f(constructor);
+    } catch (e) {
+      e.message += " (Testing with " + constructor.name + ".)";
+      throw e;
+    }
+  }
+}
diff --git a/js/src/tests/test262/built-ins/Atomics/xor/browser.js b/js/src/tests/test262/built-ins/Atomics/xor/browser.js
new file mode 100644
index 0000000000..e69de29bb2
--- /dev/null
+++ b/js/src/tests/test262/built-ins/Atomics/xor/browser.js
diff --git a/js/src/tests/test262/built-ins/Atomics/xor/descriptor.js b/js/src/tests/test262/built-ins/Atomics/xor/descriptor.js
new file mode 100644
index 0000000000..7ea7b10e0d
--- /dev/null
+++ b/js/src/tests/test262/built-ins/Atomics/xor/descriptor.js
@@ -0,0 +1,18 @@
+// |reftest| skip-if(!this.hasOwnProperty('Atomics')) -- Atomics is not enabled unconditionally
+// Copyright (C) 2017 Mozilla Corporation. All rights reserved.
+// This code is governed by the license found in the LICENSE file.
+
+/*---
+esid: sec-atomics.xor
+description: Testing descriptor property of Atomics.xor
+includes: [propertyHelper.js]
+features: [Atomics]
+---*/
+
+verifyProperty(Atomics, 'xor', {
+  enumerable: false,
+  writable: true,
+  configurable: true,
+});
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/built-ins/Atomics/xor/expected-return-value.js b/js/src/tests/test262/built-ins/Atomics/xor/expected-return-value.js
new file mode 100644
index 0000000000..9ebcd51663
--- /dev/null
+++ b/js/src/tests/test262/built-ins/Atomics/xor/expected-return-value.js
@@ -0,0 +1,49 @@
+// |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: >
+  Atomics.xor returns the value that existed at the
+  index prior to the operation.
+info: |
+  Atomics.xor( typedArray, index, value )
+
+  1. Return ? AtomicReadModifyWrite(typedArray, index, value, xor).
+
+  AtomicReadModifyWrite( typedArray, index, value, op )
+
+  ...
+  9. Return GetModifySetValueInBuffer(buffer, indexedPosition,
+                                      elementType, v, op).
+
+
+  GetModifySetValueInBuffer( arrayBuffer,
+    byteIndex, type, value, op [ , isLittleEndian ] )
+
+  ...
+  16. Return RawBytesToNumber(type, rawBytesRead, isLittleEndian).
+
+features: [Atomics, SharedArrayBuffer, TypedArray]
+---*/
+
+
+const i32a = new Int32Array(
+  new SharedArrayBuffer(Int32Array.BYTES_PER_ELEMENT * 4)
+);
+const a = 0b00000001000000001000000010000001;
+const b = 0b00000001111111111000000011111111;
+const c = 0b00000000111111110000000001111110;
+
+i32a[0] = a;
+
+assert.sameValue(
+  Atomics.xor(i32a, 0, b),
+  a,
+  'Atomics.xor(i32a, 0, b) returns the value of `a` (0b00000001000000001000000010000001)'
+);
+
+assert.sameValue(i32a[0], c, 'The value of i32a[0] equals the value of `c` (0b00000000111111110000000001111110)');
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/built-ins/Atomics/xor/good-views.js b/js/src/tests/test262/built-ins/Atomics/xor/good-views.js
new file mode 100644
index 0000000000..f881f87dee
--- /dev/null
+++ b/js/src/tests/test262/built-ins/Atomics/xor/good-views.js
@@ -0,0 +1,85 @@
+// |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) 2017 Mozilla Corporation.  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, testTypedArray.js]
+features: [ArrayBuffer, Atomics, DataView, SharedArrayBuffer, Symbol, TypedArray]
+---*/
+
+var sab = new SharedArrayBuffer(1024);
+var ab = new ArrayBuffer(16);
+var views = intArrayConstructors.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.xor(view, 8, 0x55555555), control[0],
+    'Atomics.xor(view, 8, 0x55555555) returns the value of `control[0]` (0x33333333)');
+
+  control[0] = 0x66666666;
+  assert.sameValue(
+    view[8],
+    control[0],
+    'The value of view[8] equals the value of `control[0]` (0x66666666)'
+  );
+  assert.sameValue(Atomics.xor(view, 8, 0xF0F0F0F0), control[0],
+    'Atomics.xor(view, 8, 0xF0F0F0F0) returns the value of `control[0]` (0x66666666)');
+
+  control[0] = 0x96969696;
+  assert.sameValue(
+    view[8],
+    control[0],
+    'The value of view[8] equals the value of `control[0]` (0x96969696)'
+  );
+
+  view[3] = -5;
+  control[0] = -5;
+  assert.sameValue(Atomics.xor(view, 3, 0), control[0],
+    'Atomics.xor(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.xor(view, 3, 0), control[0],
+    'Atomics.xor(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)'
+  );
+
+  // And again
+  control[0] = 123456789;
+  view[3] = 123456789;
+  assert.sameValue(Atomics.xor(view, 3, 0), control[0],
+    'Atomics.xor(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.xor(view, Idx, 0), 37, 'Atomics.xor(view, Idx, 0) returns 37');
+  });
+}, views);
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/built-ins/Atomics/xor/length.js b/js/src/tests/test262/built-ins/Atomics/xor/length.js
new file mode 100644
index 0000000000..1509b7b6f1
--- /dev/null
+++ b/js/src/tests/test262/built-ins/Atomics/xor/length.js
@@ -0,0 +1,36 @@
+// |reftest| skip-if(!this.hasOwnProperty('Atomics')) -- Atomics is not enabled unconditionally
+// Copyright (C) 2015 André Bargull. All rights reserved.
+// Copyright (C) 2017 Mozilla Corporation. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+esid: sec-atomics.xor
+description: >
+  Atomics.xor.length is 3.
+info: |
+  Atomics.xor ( ia, index, val )
+
+  17 ECMAScript Standard Built-in Objects:
+    Every built-in Function object, including constructors, has a length
+    property whose value is an integer. Unless otherwise specified, this
+    value is equal to the largest number of named arguments shown in the
+    subclause headings for the function description, including optional
+    parameters. However, rest parameters shown using the form “...name”
+    are not included in the default argument count.
+
+    Unless otherwise specified, the length property of a built-in Function
+    object has the attributes { [[Writable]]: false, [[Enumerable]]: false,
+    [[Configurable]]: true }.
+includes: [propertyHelper.js]
+features: [Atomics]
+---*/
+
+verifyProperty(Atomics.xor, 'length', {
+  value: 3,
+  enumerable: false,
+  writable: false,
+  configurable: true,
+});
+
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/built-ins/Atomics/xor/name.js b/js/src/tests/test262/built-ins/Atomics/xor/name.js
new file mode 100644
index 0000000000..f28f95387d
--- /dev/null
+++ b/js/src/tests/test262/built-ins/Atomics/xor/name.js
@@ -0,0 +1,21 @@
+// |reftest| skip-if(!this.hasOwnProperty('Atomics')) -- Atomics is not enabled unconditionally
+// Copyright (C) 2015 André Bargull. All rights reserved.
+// Copyright (C) 2017 Mozilla Corporation. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+esid: sec-atomics.xor
+description: >
+  Atomics.xor.name is "xor".
+includes: [propertyHelper.js]
+features: [Atomics]
+---*/
+
+verifyProperty(Atomics.xor, 'name', {
+  value: 'xor',
+  enumerable: false,
+  writable: false,
+  configurable: true,
+});
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/built-ins/Atomics/xor/non-shared-bufferdata.js b/js/src/tests/test262/built-ins/Atomics/xor/non-shared-bufferdata.js
new file mode 100644
index 0000000000..b8b4ec7bf2
--- /dev/null
+++ b/js/src/tests/test262/built-ins/Atomics/xor/non-shared-bufferdata.js
@@ -0,0 +1,21 @@
+// |reftest| skip-if(!this.hasOwnProperty('Atomics')) -- Atomics is not enabled unconditionally
+// Copyright (C) 2020 Rick Waldron.  All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+esid: sec-atomics.and
+description: >
+  Atomics.and will operate on TA when TA.buffer is not a SharedArrayBuffer
+includes: [testTypedArray.js]
+features: [ArrayBuffer, Atomics, TypedArray]
+---*/
+testWithAtomicsFriendlyTypedArrayConstructors(TA => {
+  const view = new TA(
+    new ArrayBuffer(TA.BYTES_PER_ELEMENT * 4)
+  );
+
+  assert.sameValue(Atomics.and(view, 0, 1), 0, 'Atomics.and(view, 0, 1) returns 0');
+  assert.sameValue(Atomics.load(view, 0), 0, 'Atomics.load(view, 0) returns 0');
+});
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/built-ins/Atomics/xor/non-shared-int-views-throws.js b/js/src/tests/test262/built-ins/Atomics/xor/non-shared-int-views-throws.js
new file mode 100644
index 0000000000..d3f1dedbd8
--- /dev/null
+++ b/js/src/tests/test262/built-ins/Atomics/xor/non-shared-int-views-throws.js
@@ -0,0 +1,21 @@
+// |reftest| skip-if(!this.hasOwnProperty('Atomics')) -- Atomics is not enabled unconditionally
+// Copyright (C) 2017 Mozilla Corporation.  All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+esid: sec-atomics.and
+description: >
+  Atomics.and throws when operating on non-sharable integer TypedArrays
+includes: [testTypedArray.js]
+features: [ArrayBuffer, Atomics, TypedArray]
+---*/
+testWithNonAtomicsFriendlyTypedArrayConstructors(TA => {
+  const buffer = new ArrayBuffer(TA.BYTES_PER_ELEMENT * 4);
+  const view = new TA(buffer);
+
+  assert.throws(TypeError, function() {
+    Atomics.and(view, 0, 1);
+  }, `Atomics.and(new ${TA.name}(buffer), 0, 1) throws TypeError`);
+});
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/built-ins/Atomics/xor/non-views.js b/js/src/tests/test262/built-ins/Atomics/xor/non-views.js
new file mode 100644
index 0000000000..d23ca3ec64
--- /dev/null
+++ b/js/src/tests/test262/built-ins/Atomics/xor/non-views.js
@@ -0,0 +1,19 @@
+// |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) 2017 Mozilla Corporation.  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 view values other than TypedArrays
+includes: [testAtomics.js]
+features: [ArrayBuffer, Atomics, DataView, SharedArrayBuffer, Symbol, TypedArray]
+---*/
+
+testWithAtomicsNonViewValues(function(view) {
+  assert.throws(TypeError, function() {
+    Atomics.xor(view, 0, 0);
+  }, '`Atomics.xor(view, 0, 0)` throws TypeError');
+});
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/built-ins/Atomics/xor/not-a-constructor.js b/js/src/tests/test262/built-ins/Atomics/xor/not-a-constructor.js
new file mode 100644
index 0000000000..37b0b0147a
--- /dev/null
+++ b/js/src/tests/test262/built-ins/Atomics/xor/not-a-constructor.js
@@ -0,0 +1,32 @@
+// |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) 2020 Rick Waldron. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+esid: sec-ecmascript-standard-built-in-objects
+description: >
+  Atomics.xor does not implement [[Construct]], is not new-able
+info: |
+  ECMAScript Function Objects
+
+  Built-in function objects that are not identified as constructors do not
+  implement the [[Construct]] internal method unless otherwise specified in
+  the description of a particular function.
+
+  sec-evaluatenew
+
+  ...
+  7. If IsConstructor(constructor) is false, throw a TypeError exception.
+  ...
+includes: [isConstructor.js]
+features: [Reflect.construct, Atomics, arrow-function, TypedArray, SharedArrayBuffer]
+---*/
+
+assert.sameValue(isConstructor(Atomics.xor), false, 'isConstructor(Atomics.xor) must return false');
+
+assert.throws(TypeError, () => {
+  new Atomics.xor(new Int32Array(new SharedArrayBuffer(Int32Array.BYTES_PER_ELEMENT)));
+}, '`new Atomics.xor(new Int32Array(new SharedArrayBuffer(Int32Array.BYTES_PER_ELEMENT)))` throws TypeError');
+
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/built-ins/Atomics/xor/shell.js b/js/src/tests/test262/built-ins/Atomics/xor/shell.js
new file mode 100644
index 0000000000..eda1477282
--- /dev/null
+++ b/js/src/tests/test262/built-ins/Atomics/xor/shell.js
@@ -0,0 +1,24 @@
+// GENERATED, DO NOT EDIT
+// file: isConstructor.js
+// Copyright (C) 2017 André Bargull. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+description: |
+    Test if a given function is a constructor function.
+defines: [isConstructor]
+features: [Reflect.construct]
+---*/
+
+function isConstructor(f) {
+    if (typeof f !== "function") {
+      throw new Test262Error("isConstructor invoked with a non-function value");
+    }
+
+    try {
+        Reflect.construct(function(){}, [], f);
+    } catch (e) {
+        return false;
+    }
+    return true;
+}
diff --git a/js/src/tests/test262/built-ins/Atomics/xor/validate-arraytype-before-index-coercion.js b/js/src/tests/test262/built-ins/Atomics/xor/validate-arraytype-before-index-coercion.js
new file mode 100644
index 0000000000..b2dcd0b415
--- /dev/null
+++ b/js/src/tests/test262/built-ins/Atomics/xor/validate-arraytype-before-index-coercion.js
@@ -0,0 +1,46 @@
+// |reftest| skip-if(!this.hasOwnProperty('Atomics')) -- Atomics is not enabled unconditionally
+// Copyright (C) 2019 André Bargull. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+esid: sec-atomics.xor
+description: >
+  TypedArray type is validated before `index` argument is coerced.
+info: |
+  24.4.13 Atomics.xor ( typedArray, index, value )
+    1. Return ? AtomicReadModifyWrite(typedArray, index, value, xor).
+
+  24.4.1.11 AtomicReadModifyWrite ( typedArray, index, value, op )
+    1. Let buffer be ? ValidateSharedIntegerTypedArray(typedArray).
+    ...
+
+  24.4.1.1 ValidateSharedIntegerTypedArray ( typedArray [ , onlyInt32 ] )
+    ...
+    4. Let typeName be typedArray.[[TypedArrayName]].
+    5. If onlyInt32 is true, then
+      a. If typeName is not "Int32Array", throw a TypeError exception.
+    6. Else,
+      a. If typeName is not "Int8Array", "Uint8Array", "Int16Array", "Uint16Array", "Int32Array",
+         or "Uint32Array", throw a TypeError exception.
+    ...
+features: [Atomics]
+---*/
+
+var index = {
+  valueOf() {
+    throw new Test262Error("index coerced");
+  }
+};
+
+var badArrayTypes = [
+  Uint8ClampedArray, Float32Array, Float64Array
+];
+
+for (var badArrayType of badArrayTypes) {
+  var typedArray = new badArrayType(new SharedArrayBuffer(8));
+  assert.throws(TypeError, function() {
+    Atomics.xor(typedArray, index, 0);
+  });
+}
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/built-ins/Atomics/xor/validate-arraytype-before-value-coercion.js b/js/src/tests/test262/built-ins/Atomics/xor/validate-arraytype-before-value-coercion.js
new file mode 100644
index 0000000000..c569faed82
--- /dev/null
+++ b/js/src/tests/test262/built-ins/Atomics/xor/validate-arraytype-before-value-coercion.js
@@ -0,0 +1,46 @@
+// |reftest| skip-if(!this.hasOwnProperty('Atomics')) -- Atomics is not enabled unconditionally
+// Copyright (C) 2019 André Bargull. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+esid: sec-atomics.xor
+description: >
+  TypedArray type is validated before `value` argument is coerced.
+info: |
+  24.4.13 Atomics.xor ( typedArray, index, value )
+    1. Return ? AtomicReadModifyWrite(typedArray, index, value, xor).
+
+  24.4.1.11 AtomicReadModifyWrite ( typedArray, index, value, op )
+    1. Let buffer be ? ValidateSharedIntegerTypedArray(typedArray).
+    ...
+
+  24.4.1.1 ValidateSharedIntegerTypedArray ( typedArray [ , onlyInt32 ] )
+    ...
+    4. Let typeName be typedArray.[[TypedArrayName]].
+    5. If onlyInt32 is true, then
+      a. If typeName is not "Int32Array", throw a TypeError exception.
+    6. Else,
+      a. If typeName is not "Int8Array", "Uint8Array", "Int16Array", "Uint16Array", "Int32Array",
+         or "Uint32Array", throw a TypeError exception.
+    ...
+features: [Atomics]
+---*/
+
+var value = {
+  valueOf() {
+    throw new Test262Error("value coerced");
+  }
+};
+
+var badArrayTypes = [
+  Uint8ClampedArray, Float32Array, Float64Array
+];
+
+for (var badArrayType of badArrayTypes) {
+  var typedArray = new badArrayType(new SharedArrayBuffer(8));
+  assert.throws(TypeError, function() {
+    Atomics.xor(typedArray, 0, value);
+  });
+}
+
+reportCompare(0, 0);