From df8c5623af1afff5fffc6af49ceda5da16f95d54 Mon Sep 17 00:00:00 2001
From: Mihai Bazon <mihai@bazon.net>
Date: Tue, 10 Dec 2013 19:39:03 +0200
Subject: minor

---
 lib/compress.js | 12 +++++++++---
 1 file changed, 9 insertions(+), 3 deletions(-)

diff --git a/lib/compress.js b/lib/compress.js
index 95dd64d6..4c52f4dd 100644
--- a/lib/compress.js
+++ b/lib/compress.js
@@ -1811,9 +1811,15 @@ merge(Compressor.prototype, {
         }
         if (compressor.option("cascade")) {
             if (self.car instanceof AST_Assign
-                && !self.car.left.has_side_effects(compressor)
-                && self.car.left.equivalent_to(self.cdr)) {
-                return self.car;
+                && !self.car.left.has_side_effects(compressor)) {
+                if (self.car.left.equivalent_to(self.cdr)) {
+                    return self.car;
+                }
+                if (self.cdr instanceof AST_Call
+                    && self.cdr.expression.equivalent_to(self.car.left)) {
+                    self.cdr.expression = self.car;
+                    return self.cdr;
+                }
             }
             if (!self.car.has_side_effects(compressor)
                 && !self.cdr.has_side_effects(compressor)
-- 
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