From 65e31e8ba7a84beab3e3fc4d58a30db046a0bcb3 Mon Sep 17 00:00:00 2001
From: alexlamsl <alexlamsl@gmail.com>
Date: Mon, 2 Mar 2020 03:38:12 +0800
Subject: [PATCH] fix corner case in `evaluate`

fixes #3738
---
 lib/compress.js           |  3 +--
 test/compress/evaluate.js | 13 +++++++++++++
 2 files changed, 14 insertions(+), 2 deletions(-)

diff --git a/lib/compress.js b/lib/compress.js
index e455ea8d..ab89e927 100644
--- a/lib/compress.js
+++ b/lib/compress.js
@@ -2528,9 +2528,8 @@ merge(Compressor.prototype, {
                 return left.is_negative_zero() || right.is_negative_zero();
               case "*":
               case "/":
-                return true;
               case "%":
-                return left.is_negative_zero();
+                return true;
               default:
                 return false;
             }
diff --git a/test/compress/evaluate.js b/test/compress/evaluate.js
index 09fdfb2a..6d3adacb 100644
--- a/test/compress/evaluate.js
+++ b/test/compress/evaluate.js
@@ -2161,3 +2161,16 @@ collapse_vars_regexp: {
         "abbb",
     ]
 }
+
+issue_3738: {
+    options = {
+        evaluate: true,
+    }
+    input: {
+        console.log(1 / (0 + ([] - 1) % 1));
+    }
+    expect: {
+        console.log(1 / (0 + ([] - 1) % 1));
+    }
+    expect_stdout: "Infinity"
+}