From 48a0f6fe411c09ed3250974332266ed2495832a9 Mon Sep 17 00:00:00 2001
From: "Alex Lam S.L" <alexlamsl@gmail.com>
Date: Mon, 25 Nov 2019 21:14:13 +0800
Subject: enhance `unsafe_math` (#3603)

---
 test/compress/numbers.js | 34 ++++++++++++++++++++++++++++++++++
 1 file changed, 34 insertions(+)

(limited to 'test/compress')

diff --git a/test/compress/numbers.js b/test/compress/numbers.js
index 1203412a..673ce23a 100644
--- a/test/compress/numbers.js
+++ b/test/compress/numbers.js
@@ -945,3 +945,37 @@ issue_3593: {
     }
     expect_stdout: "-2"
 }
+
+unsafe_math_swap_constant: {
+    options = {
+        evaluate: true,
+        unsafe_math: true,
+    }
+    input: {
+        var a = 1, b = 2;
+        console.log(
+            a++ + b-- + 3,
+            a++ + b + 3,
+            a + b-- + 3,
+            a + b + 3,
+            a++ - b-- + 3,
+            a++ - b + 3,
+            a - b-- + 3,
+            a - b + 3
+        );
+    }
+    expect: {
+        var a = 1, b = 2;
+        console.log(
+            3 + a++ + b--,
+            a++ + b + 3,
+            a + b-- + 3,
+            a + b + 3,
+            3 + a++ - b--,
+            3 + a++ - b,
+            a - b-- + 3,
+            a - b + 3
+        );
+    }
+    expect_stdout: "6 6 7 6 6 8 9 10"
+}
-- 
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