1 files changed, 73 insertions, 0 deletions
diff --git a/js/src/jit-test/tests/large-arraybuffers/large-lengths-offsets.js b/js/src/jit-test/tests/large-arraybuffers/large-lengths-offsets.js
new file mode 100644
index 0000000000..4e2bff1d70
--- /dev/null
+++ b/js/src/jit-test/tests/large-arraybuffers/large-lengths-offsets.js
@@ -0,0 +1,73 @@
+const gb = 1 * 1024 * 1024 * 1024;
+
+const bufferSmall = new ArrayBuffer(8);
+const bufferLarge = new ArrayBuffer(6 * gb);
+
+const taSmall = new Uint8Array(bufferSmall);
+const taLargeOffset = new Uint8Array(bufferLarge, 5 * gb);
+const taLargeLength = new Uint8Array(bufferLarge);
+
+const dvSmall = new DataView(bufferSmall);
+const dvLargeOffset = new DataView(bufferLarge, 5 * gb);
+const dvLargeLength = new DataView(bufferLarge);
+
+const ArrayBufferByteLength = getSelfHostedValue("ArrayBufferByteLength");
+const TypedArrayByteOffset = getSelfHostedValue("TypedArrayByteOffset");
+const TypedArrayLength = getSelfHostedValue("TypedArrayLength");
+
+function testBufferByteLengthInt32() {
+    var arr = [bufferLarge, bufferSmall];
+    for (var i = 0; i < 2000; i++) {
+        var idx = +(i < 1900); // First 1 then 0.
+        assertEq(ArrayBufferByteLength(arr[idx]), idx === 0 ? 6 * gb : 8);
+        assertEq(arr[idx].byteLength, idx === 0 ? 6 * gb : 8);
+    }
+}
+testBufferByteLengthInt32();
+
+function testTypedArrayByteOffsetInt32() {
+    var arr = [taLargeOffset, taSmall];
+    for (var i = 0; i < 2000; i++) {
+        var idx = +(i < 1900); // First 1 then 0.
+        assertEq(TypedArrayByteOffset(arr[idx]), idx === 0 ? 5 * gb : 0);
+        assertEq(arr[idx].byteOffset, idx === 0 ? 5 * gb : 0);
+    }
+}
+testTypedArrayByteOffsetInt32();
+
+function testTypedArrayLengthInt32() {
+    var arr = [taLargeLength, taSmall];
+    for (var i = 0; i < 2000; i++) {
+        var idx = +(i < 1900); // First 1 then 0.
+        assertEq(TypedArrayLength(arr[idx]), idx === 0 ? 6 * gb : 8);
+        assertEq(arr[idx].length, idx === 0 ? 6 * gb : 8);
+    }
+}
+testTypedArrayLengthInt32();
+
+function testTypedArrayByteLengthInt32() {
+    var arr = [taLargeLength, taSmall];
+    for (var i = 0; i < 2000; i++) {
+        var idx = +(i < 1900); // First 1 then 0.
+        assertEq(arr[idx].byteLength, idx === 0 ? 6 * gb : 8);
+    }
+}
+testTypedArrayByteLengthInt32();
+
+function testDataViewByteOffsetInt32() {
+    var arr = [dvLargeOffset, dvSmall];
+    for (var i = 0; i < 2000; i++) {
+        var idx = +(i < 1900); // First 1 then 0.
+        assertEq(arr[idx].byteOffset, idx === 0 ? 5 * gb : 0);
+    }
+}
+testDataViewByteOffsetInt32();
+
+function testDataViewByteLengthInt32() {
+    var arr = [dvLargeLength, dvSmall];
+    for (var i = 0; i < 2000; i++) {
+        var idx = +(i < 1900); // First 1 then 0.
+        assertEq(arr[idx].byteLength, idx === 0 ? 6 * gb : 8);
+    }
+}
+testDataViewByteLengthInt32();