1 files changed, 26 insertions, 0 deletions
diff --git a/js/src/jit-test/tests/modules/bug-1372258.js b/js/src/jit-test/tests/modules/bug-1372258.js
new file mode 100644
index 0000000000..a55979457f
--- /dev/null
+++ b/js/src/jit-test/tests/modules/bug-1372258.js
@@ -0,0 +1,26 @@
+// |jit-test| skip-if: helperThreadCount() === 0
+
+// Overwrite built-in parseModule with off-thread module parser.
+function parseModule(source) {
+    offThreadCompileModuleToStencil(source);
+    var stencil = finishOffThreadStencil();
+    return instantiateModuleStencil(stencil);
+}
+
+// Test case derived from: js/src/jit-test/tests/modules/many-imports.js
+
+// Test importing an import many times.
+
+const count = 1024;
+
+let a = registerModule('a', parseModule("export let a = 1;"));
+
+let s = "";
+for (let i = 0; i < count; i++) {
+    s += "import { a as i" + i + " } from 'a';\n";
+    s += "assertEq(i" + i + ", 1);\n";
+}
+let b = registerModule('b', parseModule(s));
+
+moduleLink(b);
+moduleEvaluate(b);