1 files changed, 20 insertions, 0 deletions
diff --git a/js/src/jit-test/tests/basic/metadata-hook-regexp-result.js b/js/src/jit-test/tests/basic/metadata-hook-regexp-result.js
new file mode 100644
index 0000000000..cad570db78
--- /dev/null
+++ b/js/src/jit-test/tests/basic/metadata-hook-regexp-result.js
@@ -0,0 +1,20 @@
+var g = newGlobal({sameCompartmentAs: this});
+g.evaluate(`enableShellAllocationMetadataBuilder()`);
+
+function f() {
+    // Ensure a match stub is created for the zone.
+    var re = /abc.+/;
+    for (var i = 0; i < 100; i++) {
+        assertEq(re.exec("..abcd").index, 2);
+    }
+    // Allocated match result objects in the realm with the metadata hook
+    // must have metadata.
+    g.evaluate(`
+    var re = /abc.+/;
+    for (var i = 0; i < 100; i++) {
+        var obj = re.exec("..abcd");
+        assertEq(getAllocationMetadata(obj).stack.length > 0, true);
+    }
+    `)
+}
+f();