From 03960539a19d47e01d042e6a473fb4f8cff2dd0a Mon Sep 17 00:00:00 2001
From: Stefan Behnel <scoder@users.berlios.de>
Date: Wed, 9 Dec 2009 16:59:37 +0100
Subject: [PATCH] comment

---
 Cython/Compiler/Optimize.py | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/Cython/Compiler/Optimize.py b/Cython/Compiler/Optimize.py
index 8c97b074..989ca2d8 100644
--- a/Cython/Compiler/Optimize.py
+++ b/Cython/Compiler/Optimize.py
@@ -733,6 +733,10 @@ class EarlyReplaceBuiltinCalls(Visitor.EnvTransform):
     This transform cannot make use of any argument types, but it can
     restructure the tree in a way that the type analysis phase can
     respond to.
+
+    Introducing C function calls here may not be a good idea.  Move
+    them to the OptimizeBuiltinCalls transform instead, which runs
+    after type analyis.
     """
     # only intercept on call nodes
     visit_Node = Visitor.VisitorTransform.recurse_to_children
-- 
2.26.2