From 23481970c0115bf86f08c89b3916285b78311b8d Mon Sep 17 00:00:00 2001
From: fuhsnn <66062782+fuhsnn@users.noreply.github.com>
Date: Tue, 29 Sep 2026 17:37:41 +0800
Subject: Add same constant phi merge test

---
 .../test/java/com/seaofnodes/simple/Chapter05Test.java    | 15 +++++++++++++++
 1 file changed, 15 insertions(+)

(limited to 'chapter08/src/test/java/com')

diff --git a/chapter08/src/test/java/com/seaofnodes/simple/Chapter05Test.java b/chapter08/src/test/java/com/seaofnodes/simple/Chapter05Test.java
index 68d379a1..fa9a5e37 100644
--- a/chapter08/src/test/java/com/seaofnodes/simple/Chapter05Test.java
+++ b/chapter08/src/test/java/com/seaofnodes/simple/Chapter05Test.java
@@ -133,6 +133,21 @@ return a;""");
         assertEquals("return (arg==Phi(Region16,3,2));", ret.toString());
     }
 
+    @Test
+    public void testMergeSameCon() {
+        Parser parser = new Parser(
+"""
+int a=arg;
+if( arg==1 )
+    a=3;
+else
+    a=3;
+return a;
+""");
+        StopNode ret = parser.parse();
+        assertEquals("return 3;", ret.toString());
+    }
+
     @Test
     public void testTrue() {
       StopNode stop = new Parser("return true;").parse();
-- 
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