1 files changed, 28 insertions, 0 deletions
diff --git a/js/src/jit-test/tests/ion/eliminate-unreachable-2.js b/js/src/jit-test/tests/ion/eliminate-unreachable-2.js
new file mode 100644
index 0000000000..3671e6399b
--- /dev/null
+++ b/js/src/jit-test/tests/ion/eliminate-unreachable-2.js
@@ -0,0 +1,28 @@
+// Test for one annoying case of the EliminateUnreachableCode
+// optimization.  Here the dominator of print("Goodbye") changes to be
+// the print("Hello") after optimization.
+
+function test1(v) {
+  if (v) {
+    if (v) {
+      assertEq(v, v);
+    } else {
+      assertEq(0, 1);
+    }
+  } else {
+    if (v) {
+      assertEq(0, 1);
+    } else {
+      assertEq(v, v);
+    }
+  }
+  assertEq(v, v);
+}
+
+function test() {
+  test1(true);
+  test1(false);
+}
+
+for (var i = 0; i < 100; i++)
+  test();