* expr.c: Corrected comment about what MOVE_RATIO does.

[pf3gnuchains/gcc-fork.git] / gcc / expr.c

diff --git a/gcc/expr.c b/gcc/expr.c
index 0390126..dbf19ff 100644 (file)
--- a/gcc/expr.c
+++ b/gcc/expr.c
@@ -203,8 +203,8 @@ static rtx do_store_flag    PROTO((tree, rtx, enum machine_mode, int));
 static char direct_load[NUM_MACHINE_MODES];
 static char direct_store[NUM_MACHINE_MODES];
 
-/* MOVE_RATIO is the number of move instructions that is better than
-   a block move.  */
+/* If a memory-to-memory move would take MOVE_RATIO or more simple
+   move-instruction sequences, we will do a movstr or libcall instead.  */
 
 #ifndef MOVE_RATIO
 #if defined (HAVE_movstrqi) || defined (HAVE_movstrhi) || defined (HAVE_movstrsi) || defined (HAVE_movstrdi) || defined (HAVE_movstrti)