1 files changed, 48 insertions, 0 deletions
diff --git a/js/src/jit-test/tests/dataview/resizable-dataview-get-elem-with-sab.js b/js/src/jit-test/tests/dataview/resizable-dataview-get-elem-with-sab.js
new file mode 100644
index 0000000000..ea8ca1666c
--- /dev/null
+++ b/js/src/jit-test/tests/dataview/resizable-dataview-get-elem-with-sab.js
@@ -0,0 +1,48 @@
+// |jit-test| --enable-arraybuffer-resizable; skip-if: !ArrayBuffer.prototype.resize||!this.SharedArrayBuffer
+
+load(libdir + "dataview.js");
+
+const TypedArrays = [
+  Int8Array,
+  Uint8Array,
+  Int16Array,
+  Uint16Array,
+  Int32Array,
+  Uint32Array,
+  Float32Array,
+  Float64Array,
+  BigInt64Array,
+  BigUint64Array,
+];
+
+function test(TA) {
+  const length = 4;
+  const byteLength = length * TA.BYTES_PER_ELEMENT;
+
+  let rab = new SharedArrayBuffer(byteLength, {maxByteLength: byteLength});
+  let actual = new TA(rab);
+  let expected = new TA(length);
+  let type = expected[0].constructor;
+
+  for (let i = 0; i < length; ++i) {
+    actual[i] = type(i * i);
+    expected[i] = type(i * i);
+  }
+
+  let dv = new DataView(rab);
+  for (let i = 0; i < 200; ++i) {
+    let index = i % length;
+    let byteIndex = index * TA.BYTES_PER_ELEMENT;
+
+    assertEq(dv.getElem(byteIndex, nativeIsLittleEndian), expected[index]);
+  }
+}
+
+for (let TA of TypedArrays) {
+  let getter = "get" + typeName(TA);
+
+  // Copy test function to ensure monomorphic ICs.
+  let copy = Function(`return ${test}`.replaceAll("getElem", getter))();
+
+  copy(TA);
+}