From 0785a15aceaee3f4a31d9693a4230cbf0477ea81 Mon Sep 17 00:00:00 2001
From: "Alex Lam S.L" <alexlamsl@gmail.com>
Date: Thu, 17 Oct 2019 09:58:05 +0800
Subject: fix corner case in `dead_code` & `ie8` (#3494)

fixes #3493
---
 test/compress/ie8.js | 72 ++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 72 insertions(+)

(limited to 'test')

diff --git a/test/compress/ie8.js b/test/compress/ie8.js
index 223da329..4637451c 100644
--- a/test/compress/ie8.js
+++ b/test/compress/ie8.js
@@ -1887,3 +1887,75 @@ issue_3486_ie8: {
     }
     expect_stdout: "PASS"
 }
+
+issue_3493: {
+    options = {
+        dead_code: true,
+        ie8: false,
+    }
+    input: {
+        var c = "PASS";
+        (function() {
+            try {
+                (function a() {
+                    throw {};
+                })();
+            } catch (a) {
+                a >>= 0;
+                a && (c = "FAIL");
+            }
+        })();
+        console.log(c);
+    }
+    expect: {
+        var c = "PASS";
+        (function() {
+            try {
+                (function a() {
+                    throw {};
+                })();
+            } catch (a) {
+                a >>= 0;
+                a && (c = "FAIL");
+            }
+        })();
+        console.log(c);
+    }
+    expect_stdout: "PASS"
+}
+
+issue_3493_ie8: {
+    options = {
+        dead_code: true,
+        ie8: true,
+    }
+    input: {
+        var c = "PASS";
+        (function() {
+            try {
+                (function a() {
+                    throw {};
+                })();
+            } catch (a) {
+                a >>= 0;
+                a && (c = "FAIL");
+            }
+        })();
+        console.log(c);
+    }
+    expect: {
+        var c = "PASS";
+        (function() {
+            try {
+                (function a() {
+                    throw {};
+                })();
+            } catch (a) {
+                a >>= 0;
+                a && (c = "FAIL");
+            }
+        })();
+        console.log(c);
+    }
+    expect_stdout: "PASS"
+}
-- 
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