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-rw-r--r--js/src/jit-test/tests/basic/arrayConcat.js18
1 files changed, 18 insertions, 0 deletions
diff --git a/js/src/jit-test/tests/basic/arrayConcat.js b/js/src/jit-test/tests/basic/arrayConcat.js
new file mode 100644
index 000000000..17ad87711
--- /dev/null
+++ b/js/src/jit-test/tests/basic/arrayConcat.js
@@ -0,0 +1,18 @@
+
+/* Test concat compiler paths. */
+
+for (var i = 9; i < 10; i++)
+ assertEq([2].concat([3])[0], 2);
+
+function f(a, b) {
+ return a.concat(b)[0];
+}
+function g() {
+ var x = [];
+ var y = [1];
+ for (var i = 0; i < 50; i++)
+ assertEq(f(x, y), 1);
+ eval('y[0] = "three"');
+ assertEq(f(x, y), "three");
+}
+g();