fix `dead_code` on exceptional `return` (#2930)

fixes #2929

1 files changed, 25 insertions, 0 deletions

diff --git a/test/compress/dead-code.js b/test/compress/dead-code.js
index 9b45fe87..41f58427 100644
--- a/test/compress/dead-code.js
+++ b/test/compress/dead-code.js
@@ -917,3 +917,28 @@ issue_2860_2: {
     }
     expect_stdout: "1"
 }
+
+issue_2929: {
+    options = {
+        dead_code: true,
+    }
+    input: {
+        console.log(function(a) {
+            try {
+                return null.p = a = 1;
+            } catch (e) {
+                return a ? "PASS" : "FAIL";
+            }
+        }());
+    }
+    expect: {
+        console.log(function(a) {
+            try {
+                return null.p = a = 1;
+            } catch (e) {
+                return a ? "PASS" : "FAIL";
+            }
+        }());
+    }
+    expect_stdout: "PASS"
+}