sparc.h (MOVE_RATIO): New definition.

2004-06-09  David S. Miller  <davem@nuts.davemloft.net>

	* config/sparc/sparc.h (MOVE_RATIO): New definition.

From-SVN: r82844

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 09d1c8edfa41d872a4e68f95394ae342f2b3a4a4..388a8bbe14a71373fb752c5f19d0d9f138912542 100644 (file)
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,7 @@
+2004-06-09  David S. Miller  <davem@nuts.davemloft.net>
+
+       * config/sparc/sparc.h (MOVE_RATIO): New definition.
+
 2004-06-09  Richard Henderson  <rth@redhat.com>
 
        * basic-block.h (struct edge_def): Add goto_locus.

diff --git a/gcc/config/sparc/sparc.h b/gcc/config/sparc/sparc.h
index 3e0b1c914617015333172dcc9c6c2fd7f170842d..d1c80499970be3552ca27be8409dfcd620c8bb7e 100644 (file)
--- a/gcc/config/sparc/sparc.h
+++ b/gcc/config/sparc/sparc.h
@@ -2181,6 +2181,11 @@ do {                                                                    \
    in one reasonably fast instruction.  */
 #define MOVE_MAX 8
 
+/* If a memory-to-memory move would take MOVE_RATIO or more simple
+   move-instruction pairs, we will do a movstr or libcall instead.  */
+
+#define MOVE_RATIO (optimize_size ? 3 : 8)
+
 /* Define if operations between registers always perform the operation
    on the full register even if a narrower mode is specified.  */
 #define WORD_REGISTER_OPERATIONS