From: Michael Meissner <meissner@cygnus.com>
Date: Fri, 31 Jul 1998 17:28:14 +0000 (+0000)
Subject: If -Os use load/store multiple instructions
X-Git-Tag: prereleases/egcs-1.1-prerelease~120
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=0a767371a5d77eb8781d00c333457186d8a2aca3;p=thirdparty%2Fgcc.git

If -Os use load/store multiple instructions

From-SVN: r21510
---

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 769ea8cdd446..309c6aa5c475 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,8 @@
+Fri Jul 31 20:22:02 1998  Michael Meissner  <meissner@cygnus.com>
+
+	* rs6000.c (rs6000_override_options): If big endian and -Os, use
+	load/store multiple instructions unless user overrides.
+
 Fri Jul 31 17:08:59 1998  Jeffrey A Law  (law@cygnus.com)
 
 	* ns32k/netbsd.h: Fix typo.
diff --git a/gcc/config/rs6000/rs6000.c b/gcc/config/rs6000/rs6000.c
index d4cb695575b8..987c3adeabdb 100644
--- a/gcc/config/rs6000/rs6000.c
+++ b/gcc/config/rs6000/rs6000.c
@@ -276,6 +276,11 @@ rs6000_override_options (default_cpu)
 	}
     }
 
+  /* If we are optimizing big endian systems for space, use the
+     store multiple instructions.  */
+  if (BYTES_BIG_ENDIAN && optimize_size)
+    target_flags |= MASK_MULTIPLE;
+
   /* If -mmultiple or -mno-multiple was explicitly used, don't
      override with the processor default */
   if (TARGET_MULTIPLE_SET)