rs6000.c: Avoid creating a stack frame under SYSV ABI if we only need to save LR.

        * rs6000.c: Avoid creating a stack frame under SYSV ABI if we
        only need to save LR.

From-SVN: r16140

gcc/ChangeLog

+Tue Oct 21 18:34:01 1997  Geoffrey KEATING  <geoffk@ozemail.com.au>
+
+	* rs6000.c: Avoid creating a stack frame under SYSV ABI if we
+	only need to save LR.
+
 Tue Oct 21 10:06:40 1997  Jeffrey A Law  (law@cygnus.com)
 
 	* mn10200.c (expand_prologue): Fix typo.

gcc/config/rs6000/rs6000.c

@@ -3168,7 +3168,8 @@ rs6000_stack_info ()
 
   else if (abi == ABI_V4 || abi == ABI_NT || abi == ABI_SOLARIS)
     info_ptr->push_p = (total_raw_size > info_ptr->fixed_size
-			|| info_ptr->lr_save_p);
+			|| (abi == ABI_NT ? info_ptr->lr_save_p
+			    : info_ptr->calls_p));
 
   else
     info_ptr->push_p = (frame_pointer_needed