1 files changed, 29 insertions, 0 deletions
diff --git a/js/src/jit-test/tests/ion/bug754713-2.js b/js/src/jit-test/tests/ion/bug754713-2.js
new file mode 100644
index 000000000..5a099411c
--- /dev/null
+++ b/js/src/jit-test/tests/ion/bug754713-2.js
@@ -0,0 +1,29 @@
+// Don't eliminate a phi if it has no SSA uses but its value is still
+// observable in the interpreter.
+var t1 = 100;
+function test1(x) {
+    // g(x) is inlined with --ion-eager, but don't mark the phi
+    // for x as unused.
+    for (var i = 0; i < 90; i++) {
+        f1(x);
+        if (i >= 80)
+            t1;
+    }
+}
+
+function f1(x) {};
+test1(2);
+
+var t2 = 100;
+function test2(g) {
+    // g(x) is inlined with --ion-eager, but don't mark the phi
+    // for g as unused.
+    for (var i = 0; i < 90; i++) {
+        g();
+        if (i >= 80)
+            t2;
+    }
+}
+
+function f2() {};
+test2(f2);