From 1ec26f360406dad0f0b065ebcc8359bed3c78963 Mon Sep 17 00:00:00 2001
From: Matthias Andreas Benkard <code@mail.matthias.benkard.de>
Date: Thu, 18 Jul 2013 15:29:56 +0200
Subject: Optimize PREPARE-FUNCTION-REF.

---
 sb-eval2.lisp | 8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)

diff --git a/sb-eval2.lisp b/sb-eval2.lisp
index 7ee46c5..ffaf0bd 100644
--- a/sb-eval2.lisp
+++ b/sb-eval2.lisp
@@ -233,9 +233,11 @@
              (offset  (lexical-offset lexical)))
         (lambda (env)
           (environment-value env nesting offset)))
-      (lambda (env)
-        (declare (ignore env))
-        (fdefinition function-name))))
+      (let ((f* (sb-c::fdefinition-object function-name t)))
+        (lambda (env)
+          (declare (ignore env))
+          (or (sb-c::fdefn-fun f*)
+              (error 'undefined-function :name function-name))))))
 
 
 
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