1 files changed, 43 insertions, 0 deletions
diff --git a/js/src/jit-test/tests/ion/inlining/TypedObject-TypeDescrIsSimpleType.js b/js/src/jit-test/tests/ion/inlining/TypedObject-TypeDescrIsSimpleType.js
new file mode 100644
index 000000000..7536c4218
--- /dev/null
+++ b/js/src/jit-test/tests/ion/inlining/TypedObject-TypeDescrIsSimpleType.js
@@ -0,0 +1,43 @@
+/* -*- tab-width: 8; indent-tabs-mode: nil; js-indent-level: 2 -*-
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+/* Testing TypeDescrIsSimpleType() is tricky because it's not exposed.
+ * However, the implementation of <typed-object>.build() must use it.
+ *
+ * This basically asserts that build() works, and thus that the code is
+ * at least not broken.
+ *
+ * To verify that inlining happens:
+ *
+ * Run this with IONFLAGS=logs, generate pdfs with iongraph, and then
+ * try running "pdfgrep TypeDescrIsSimpleType func*pass00*.pdf", this
+ * might net a couple of functions that are likely candidates for
+ * manual inspection.
+ */
+
+if (!this.TypedObject) {
+    print("No TypedObject, skipping");
+    quit();
+}
+
+var T = TypedObject;
+var AT = new T.ArrayType(T.uint32, 100);
+
+function check() {
+    return AT.build(x => x+1);
+}
+
+function test() {
+    var w;
+    for ( var i=0 ; i < 100 ; i++ )
+	w = check();
+    return w;
+}
+
+var w = test();
+assertEq(w.length, 100);
+assertEq(w[99], 100);
+print("Done");
+