fix escape analysis on || and && (#2600)

fixes #2598
2017-12-15 19:48:14 +08:00
parent 7d6907cb99
commit db902af4c6
2 changed files with 25 additions and 0 deletions
--- a/test/compress/reduce_vars.js
+++ b/test/compress/reduce_vars.js
@@ -4899,3 +4899,27 @@ do_while: {
    }
    expect_stdout: "PASS"
 }
+
+issue_2598: {
+    options = {
+        reduce_funcs: true,
+        reduce_vars: true,
+        toplevel: true,
+        unused: true,
+    }
+    input: {
+        function f() {}
+        function g(a) {
+            return a || f;
+        }
+        console.log(g(false) === g(null));
+    }
+    expect: {
+        function f() {}
+        function g(a) {
+            return a || f;
+        }
+        console.log(g(false) === g(null));
+    }
+    expect_stdout: "true"
+}