Index: config/arc/arc.c
===================================================================
--- config/arc/arc.c	(revision 166803)
+++ config/arc/arc.c	(working copy)
@@ -2426,10 +2426,6 @@ arc_function_arg_advance (CUMULATIVE_ARG
 	  + ROUND_ADVANCE_ARG (mode, type));
 }
 
-/* If defined, a C expression that gives the alignment boundary, in bits,
-   of an argument with the specified mode and type.  If it is not defined, 
-   PARM_BOUNDARY is used for all arguments.  */
-#define FUNCTION_ARG_BOUNDARY(MODE, TYPE) \
 /* Worker function for TARGET_FUNCTION_ARG_BOUNDARY.  */
 
 static unsigned int
Index: config/pa/pa.c
===================================================================
--- config/pa/pa.c	(revision 166803)
+++ config/pa/pa.c	(working copy)
@@ -9613,7 +9613,7 @@ pa_function_arg_boundary (enum machine_m
 		     ? (integer_zerop (size)
 			|| !TREE_CONSTANT (size)
 			|| int_size_in_bytes (type) <= UNITS_PER_WORD)
-		     : GET_MODE_SIZE (mode));
+		     : GET_MODE_SIZE (mode) <= UNITS_PER_WORD);
 
   return singleword ? PARM_BOUNDARY : MAX_PARM_BOUNDARY;
 }