From: Bernd Schmidt <bernd.schmidt@analog.com>
Date: Thu, 10 May 2007 13:07:24 +0000 (+0000)
Subject: bfin.h (MOVE_RATIO): Define.
X-Git-Tag: releases/gcc-4.3.0~5148
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=b548a9c2c2037434a577d39730cc4d46610f4a66;p=thirdparty%2Fgcc.git

bfin.h (MOVE_RATIO): Define.

	* config/bfin/bfin.h (MOVE_RATIO): Define.

From-SVN: r124596
---

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 60c3c9cafbf6..73581110708d 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,7 @@
+2007-05-08  Bernd Schmidt  <bernd.schmidt@analog.com>
+
+	* config/bfin/bfin.h (MOVE_RATIO): Define.
+
 2007-05-10  Richard Sandiford  <richard@codesourcery.com>
 
 	* config.gcc (sparc-wrs-vxworks): New target.
diff --git a/gcc/config/bfin/bfin.h b/gcc/config/bfin/bfin.h
index 5a779da8ca71..b78ecb2c84a3 100644
--- a/gcc/config/bfin/bfin.h
+++ b/gcc/config/bfin/bfin.h
@@ -934,6 +934,10 @@ do {					       \
    in one reasonably fast instruction.  */
 #define MOVE_MAX UNITS_PER_WORD
 
+/* If a memory-to-memory move would take MOVE_RATIO or more simple
+   move-instruction pairs, we will do a movmem or libcall instead.  */
+
+#define MOVE_RATIO 5
 
 /* STORAGE LAYOUT: target machine storage layout
    Define this macro as a C expression which is nonzero if accessing