From: Bernd Schmidt <bernd.schmidt@analog.com>
Date: Thu, 6 Sep 2007 23:24:19 +0000 (+0000)
Subject: bfin.h (PREFERRED_RELOAD_CLASS): Don't reload autoinc addresses into I registers.
X-Git-Tag: releases/gcc-4.3.0~2801
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=aeffb4b5cd75b90e0bd287a5830a7ead71ba3d03;p=thirdparty%2Fgcc.git

bfin.h (PREFERRED_RELOAD_CLASS): Don't reload autoinc addresses into I registers.

	* config/bfin/bfin.h (PREFERRED_RELOAD_CLASS): Don't reload autoinc
	addresses into I registers.

From-SVN: r128212
---

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 8ac3e420de9f..7cc1ad95c9d2 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,8 @@
+2007-09-07  Bernd Schmidt  <bernd.schmidt@analog.com>
+
+	* config/bfin/bfin.h (PREFERRED_RELOAD_CLASS): Don't reload autoinc
+	addresses into I registers.
+
 2007-09-06  Jan Hubicka  <jh@suse.cz>
 	    Andreas Tobler  <a.tobler@schweiz.org>
 
diff --git a/gcc/config/bfin/bfin.h b/gcc/config/bfin/bfin.h
index fa6eed349c2f..93c77c19e00f 100644
--- a/gcc/config/bfin/bfin.h
+++ b/gcc/config/bfin/bfin.h
@@ -721,7 +721,10 @@ enum reg_class
    class to use when it is necessary to copy value X into a register
    in class CLASS.  The value is a register class; perhaps CLASS, or
    perhaps another, smaller class.  */
-#define PREFERRED_RELOAD_CLASS(X, CLASS) (CLASS)
+#define PREFERRED_RELOAD_CLASS(X, CLASS)		\
+  (GET_CODE (X) == POST_INC				\
+   || GET_CODE (X) == POST_DEC				\
+   || GET_CODE (X) == PRE_DEC ? PREGS : (CLASS))
 
 /* Function Calling Conventions. */