From 08421921cbb885fdfb785b896f21b59937b99f39 Mon Sep 17 00:00:00 2001
From: Darrick Wiebe <darrickw@gmail.com>
Date: Sat, 12 Apr 2025 00:25:08 -0400
Subject: Hook for pre-encoding work needed by M2 (#200)

---
 chapter21/src/main/java/com/seaofnodes/simple/codegen/CodeGen.java | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/chapter21/src/main/java/com/seaofnodes/simple/codegen/CodeGen.java b/chapter21/src/main/java/com/seaofnodes/simple/codegen/CodeGen.java
index 515e2c10..114d0b5c 100644
--- a/chapter21/src/main/java/com/seaofnodes/simple/codegen/CodeGen.java
+++ b/chapter21/src/main/java/com/seaofnodes/simple/codegen/CodeGen.java
@@ -312,12 +312,14 @@ public class CodeGen {
     public int _tEncode;
     public boolean _JIT;
     public Encoding _encoding;
+    public void preEncode() {  }  // overridden by M2
     public CodeGen encode(boolean jit) {
         assert _phase == Phase.RegAlloc;
         _phase = Phase.Encoding;
         long t0 = System.currentTimeMillis();
         _encoding = new Encoding(this);
         _JIT = jit;
+        preEncode();
         _encoding.encode();
         _tEncode = (int)(System.currentTimeMillis() - t0);
         return this;
-- 
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