1 files changed, 40 insertions, 0 deletions
diff --git a/js/src/jit-test/tests/large-arraybuffers/shared-array-buffer.js b/js/src/jit-test/tests/large-arraybuffers/shared-array-buffer.js
new file mode 100644
index 0000000000..608744b392
--- /dev/null
+++ b/js/src/jit-test/tests/large-arraybuffers/shared-array-buffer.js
@@ -0,0 +1,40 @@
+// |jit-test| skip-if: !this.SharedArrayBuffer
+
+var gb = 1 * 1024 * 1024 * 1024;
+var sab = new SharedArrayBuffer(4 * gb + 10);
+var ta = new Uint8Array(sab);
+
+function testSlice() {
+    // Large |start| and |end|.
+    ta[4 * gb + 0] = 11;
+    ta[4 * gb + 1] = 22;
+    ta[4 * gb + 2] = 33;
+    ta[4 * gb + 3] = 44;
+    var ta2 = new Uint8Array(sab.slice(4 * gb, 4 * gb + 4));
+    assertEq(ta2.toString(), "11,22,33,44");
+
+    // Large |start|.
+    ta[ta.length - 3] = 99;
+    ta[ta.length - 2] = 88;
+    ta[ta.length - 1] = 77;
+    ta2 = new Uint8Array(sab.slice(4 * gb + 8));
+    assertEq(ta2.toString(), "88,77");
+
+    // Relative values.
+    ta2 = new Uint8Array(sab.slice(-3, -1));
+    assertEq(ta2.toString(), "99,88");
+
+    // Large relative values.
+    ta[0] = 100;
+    ta[1] = 101;
+    ta[2] = 102;
+    ta2 = new Uint8Array(sab.slice(-ta.length, -ta.length + 3));
+    assertEq(ta2.toString(), "100,101,102");
+}
+testSlice();
+
+function testSharedMailbox() {
+    setSharedObject(sab);
+    assertEq(getSharedObject().byteLength, 4 * gb + 10);
+}
+testSharedMailbox();