From 0d5df271a12123a2db8e4ff808e702c7cca5e9a8 Mon Sep 17 00:00:00 2001
From: alexlamsl <alexlamsl@gmail.com>
Date: Sat, 13 Jan 2018 14:09:11 +0800
Subject: [PATCH] add tests for #2740

---
 test/compress/loops.js | 66 ++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 66 insertions(+)

diff --git a/test/compress/loops.js b/test/compress/loops.js
index 213a107f..84c57840 100644
--- a/test/compress/loops.js
+++ b/test/compress/loops.js
@@ -649,3 +649,69 @@ issue_2740_5: {
     }
     expect_stdout: "0 undefined"
 }
+
+issue_2740_6: {
+    options = {
+        dead_code: true,
+        loops: true,
+    }
+    input: {
+        const a = 9, b = 0;
+        for (const a = 1; a < 3; ++b) break;
+        console.log(a, b);
+    }
+    expect: {
+        const a = 9, b = 0;
+        {
+            const a = 1;
+            a < 3;
+        }
+        console.log(a, b);
+    }
+    expect_stdout: "9 0"
+    node_version: ">=6"
+}
+
+issue_2740_7: {
+    options = {
+        dead_code: true,
+        loops: true,
+    }
+    input: {
+        let a = 9, b = 0;
+        for (const a = 1; a < 3; ++b) break;
+        console.log(a, b);
+    }
+    expect: {
+        let a = 9, b = 0;
+        {
+            const a = 1;
+            a < 3;
+        }
+        console.log(a, b);
+    }
+    expect_stdout: "9 0"
+    node_version: ">=6"
+}
+
+issue_2740_8: {
+    options = {
+        dead_code: true,
+        loops: true,
+    }
+    input: {
+        var a = 9, b = 0;
+        for (const a = 1; a < 3; ++b) break;
+        console.log(a, b);
+    }
+    expect: {
+        var a = 9, b = 0;
+        {
+            const a = 1;
+            a < 3;
+        }
+        console.log(a, b);
+    }
+    expect_stdout: "9 0"
+    node_version: ">=6"
+}