1 files changed, 28 insertions, 0 deletions
diff --git a/js/src/jit-test/tests/ion/bug1034400.js b/js/src/jit-test/tests/ion/bug1034400.js
new file mode 100644
index 0000000000..d55aaffc79
--- /dev/null
+++ b/js/src/jit-test/tests/ion/bug1034400.js
@@ -0,0 +1,28 @@
+var countG = 0;
+function g() {
+    switch(countG++) {
+     case 0: return 42;
+     case 1: return "yo";
+     case 2: return {};
+    }
+}
+
+var countFault = 0;
+function uceFault() {
+    if (countFault++ == 4)
+        uceFault = function() { return true }
+    return false;
+}
+
+function f() {
+    var x = !g();
+    if (uceFault() || uceFault()) {
+        assertEq(x, false);
+        return 0;
+    }
+    return 1;
+}
+
+f();
+f();
+f();