[COMMITTED] Revise STRICT_ALIGNMENT check in assign_parm_adjust_stack_rtl

[Bernd Edlinger]

Committed as r274025 with approval in https://gcc.gnu.org/ml/gcc-patches/2019-08/msg00146.html

$ svn diff -r274024:274025 -x -p
Index: ChangeLog
===================================================================
--- ChangeLog	(Revision 274024)
+++ ChangeLog	(Revision 274025)
@@ -1,5 +1,8 @@
 2019-08-02  Bernd Edlinger  <bernd.edlinger@hotmail.de>
 
+	* function.c (assign_parm_adjust_stack_rtl): Revise STRICT_ALIGNMENT
+	check to use targetm.slow_unaligned_access instead.
+
 	* function.c (assign_param_data_one): Remove unused data members.
 
 2019-08-02  Steve Ellcey  <sellcey@marvell.com>
Index: function.c
===================================================================
--- function.c	(Revision 274024)
+++ function.c	(Revision 274025)
@@ -2811,8 +2811,9 @@ assign_parm_adjust_stack_rtl (struct assign_parm_d
      ultimate type, don't use that slot after entry.  We'll make another
      stack slot, if we need one.  */
   if (stack_parm
-      && ((STRICT_ALIGNMENT
-	   && GET_MODE_ALIGNMENT (data->nominal_mode) > MEM_ALIGN (stack_parm))
+      && ((GET_MODE_ALIGNMENT (data->nominal_mode) > MEM_ALIGN (stack_parm)
+	   && targetm.slow_unaligned_access (data->nominal_mode,
+					     MEM_ALIGN (stack_parm)))
 	  || (data->nominal_type
 	      && TYPE_ALIGN (data->nominal_type) > MEM_ALIGN (stack_parm)
 	      && MEM_ALIGN (stack_parm) < PREFERRED_STACK_BOUNDARY)))