From 6961c57d1e2849b4c7c9e43295015d0bee44daa5 Mon Sep 17 00:00:00 2001
From: "Alex Lam S.L" <alexlamsl@gmail.com>
Date: Mon, 5 Jul 2021 04:57:58 +0100
Subject: fix corner case in `reduce_vars` (#5051)

fixes #5050
---
 test/compress/reduce_vars.js | 29 +++++++++++++++++++++++++++++
 1 file changed, 29 insertions(+)

(limited to 'test')

diff --git a/test/compress/reduce_vars.js b/test/compress/reduce_vars.js
index 735688ea..4af4945f 100644
--- a/test/compress/reduce_vars.js
+++ b/test/compress/reduce_vars.js
@@ -7696,3 +7696,32 @@ issue_5048: {
     }
     expect_stdout: "undefined"
 }
+
+issue_5050: {
+    options = {
+        evaluate: true,
+        reduce_vars: true,
+        toplevel: true,
+    }
+    input: {
+        function f() {
+            console.log(a);
+        }
+        this;
+        var a = 1;
+        f(console.log(2), f(), a = 3);
+    }
+    expect: {
+        function f() {
+            console.log(a);
+        }
+        this;
+        var a = 1;
+        f(console.log(2), f(), a = 3);
+    }
+    expect_stdout: [
+        "2",
+        "1",
+        "3",
+    ]
+}
-- 
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