Patch from Bob Manson.

	* config/rs6000/rs6000.c (rs6000_stack_info): Align the stack bottom
	to an 8-byte boundary if info_ptr->fpmem_p.

From-SVN: r19780

gcc/ChangeLog

+Fri May 15 17:42:52 1998  Bob Manson  <manson@charmed.cygnus.com>
+
+	* config/rs6000/rs6000.c (rs6000_stack_info): Align the stack bottom
+	to an 8-byte boundary if info_ptr->fpmem_p.
+
 Fri May 15 17:36:11 1998  Bill Moyer <ttk@cygnus.com>
 
         * loop.c (basic_induction_var): Added test preventing

gcc/config/rs6000/rs6000.c

@@ -3205,6 +3205,13 @@ rs6000_stack_info ()
 	info_ptr->cr_size = reg_size;
     }
 
+  /* Ensure that fp_save_offset will be aligned to an 8-byte boundary. */
+  if (info_ptr->fpmem_p)
+    {
+      info_ptr->gp_size = RS6000_ALIGN (info_ptr->gp_size, 8);
+      info_ptr->main_size = RS6000_ALIGN (info_ptr->main_size, 8);
+    }
+
   /* Determine various sizes */
   info_ptr->reg_size     = reg_size;
   info_ptr->fixed_size   = RS6000_SAVE_AREA;