From a4994371c0b0fbea9d2802acc22d9cc3977a0de0 Mon Sep 17 00:00:00 2001
From: Cliff Click <cliffc@acm.org>
Date: Sun, 4 Oct 2026 13:30:41 -0700
Subject: Slides for 2026 REBASE

---
 chapter15/src/main/java/com/seaofnodes/simple/Parser.java | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

(limited to 'chapter15')

diff --git a/chapter15/src/main/java/com/seaofnodes/simple/Parser.java b/chapter15/src/main/java/com/seaofnodes/simple/Parser.java
index 1fc6f312..a0c15ae3 100644
--- a/chapter15/src/main/java/com/seaofnodes/simple/Parser.java
+++ b/chapter15/src/main/java/com/seaofnodes/simple/Parser.java
@@ -738,7 +738,7 @@ public class Parser {
         mem(after.peephole());
         out.unkeep();
         nnn.unkeep();
-        prior.unkeep();
+        if( prior.unkeep().isUnused() ) prior.kill();
         return ptr.unkeep();
     }
 
@@ -762,7 +762,7 @@ public class Parser {
         st.setDef(0,ctrl);
         st = st.peephole();
         mem(new MemMergeNode(prior,alias,st).peephole());
-        prior.unkeep();
+        if( prior.unkeep().isUnused() ) prior.kill();
     }
 
     /**
-- 
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