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-rw-r--r--js/src/jit-test/tests/ion/eliminate-unreachable-2.js28
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 000000000..3671e6399
--- /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();