From e547804711b6a1c119fc8a56786e0f8fe1469c65 Mon Sep 17 00:00:00 2001
From: sjs <sjs@devbox.gv.shawcable.net>
Date: Sat, 16 May 2009 15:40:43 -0700
Subject: [PATCH] [CHANGED] only generate required labels in if-else

---
 compiler.rb | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/compiler.rb b/compiler.rb
index ea99fdb..4b22397 100644
--- a/compiler.rb
+++ b/compiler.rb
@@ -162,16 +162,15 @@ class Compiler
     match('i')
     condition
     else_label = unique_label(:else)
-    end_label = unique_label(:end)
+    end_label = else_label      # only generated if else clause present
     x86_jz(else_label)
     block
     if @look == 'l'
       match('l')
+      end_label = unique_label(:end) # now we need the 2nd label
       x86_jmp(end_label)
       emit_label(else_label)
       block
-    else
-      emit_label(else_label)    # we end up with an extra label, oh well
     end
     match('e')
     emit_label(end_label)