1 files changed, 42 insertions, 0 deletions
diff --git a/js/src/jit-test/tests/arguments/inline-arguments-length.js b/js/src/jit-test/tests/arguments/inline-arguments-length.js
new file mode 100644
index 0000000000..efd9dedaf7
--- /dev/null
+++ b/js/src/jit-test/tests/arguments/inline-arguments-length.js
@@ -0,0 +1,42 @@
+// |jit-test| --fast-warmup
+
+var arg = 0;
+
+function inner() {
+    return arguments.length;
+}
+
+function outer0() {
+    trialInline();
+    return inner();
+}
+
+function outer1() {
+    trialInline();
+    return inner(arg);
+}
+
+function outer2() {
+    trialInline();
+    return inner(arg, arg);
+}
+
+function outer3() {
+    trialInline();
+    return inner(arg, arg, arg);
+}
+
+function outer4() {
+    trialInline();
+    return inner(arg, arg, arg, arg);
+}
+
+with ({}) {}
+
+for (var i = 0; i < 50; i++) {
+    assertEq(outer0(), 0);
+    assertEq(outer1(), 1);
+    assertEq(outer2(), 2);
+    assertEq(outer3(), 3);
+    assertEq(outer4(), 4);
+}