calls.c (expand_call): Set MEM_IN_STRUCT_P as needed on return value from assign_stack_temp.

	* calls.c (expand_call): Set MEM_IN_STRUCT_P as needed on return
	value from assign_stack_temp.
	(store_one_arg): Likewise.
	* expr.c (save_noncopied_parts): Likewise.
	(expand_expr): Likewise.
	* function.c (assign_parms): Likewise.
	* integrate.c (expand_inline_function): Likewise.
	* stmt.c (expand_decl): Likewise.

From-SVN: r8708

gcc/calls.c

@@ -684,6 +684,8 @@ expand_call (exp, target, ignore)
 
 	    structure_value_addr
 	      = XEXP (assign_stack_temp (BLKmode, struct_value_size, 1), 0);
+	    MEM_IN_STRUCT_P (structure_value_addr)
+	      = AGGREGATE_TYPE_P (TREE_TYPE (exp));
 	    target = 0;
 	  }
       }
@@ -1682,6 +1684,7 @@ expand_call (exp, target, ignore)
       if (save_mode == BLKmode)
 	{
 	  save_area = assign_stack_temp (BLKmode, num_to_save, 1);
+	  MEM_IN_STRUCT_P (save_area) = 0;
 	  emit_block_move (validize_mem (save_area), stack_area,
 			   GEN_INT (num_to_save),
 			   PARM_BOUNDARY / BITS_PER_UNIT);
@@ -2949,6 +2952,8 @@ store_one_arg (arg, argblock, may_be_alloca, variable_size, fndecl,
 	    {
 	      arg->save_area = assign_stack_temp (BLKmode,
 						  arg->size.constant, 1);
+	      MEM_IN_STRUCT_P (arg->save_area)
+		= AGGREGATE_TYPE_P (TREE_TYPE (arg->tree_value));
 	      preserve_temp_slots (arg->save_area);
 	      emit_block_move (validize_mem (arg->save_area), stack_area,
 			       GEN_INT (arg->size.constant),

gcc/expr.c

@@ -3727,6 +3727,7 @@ save_noncopied_parts (lhs, list)
 	tree to_be_saved = build (COMPONENT_REF, part_type, lhs, part);
 	rtx target = assign_stack_temp (TYPE_MODE (part_type),
 					int_size_in_bytes (part_type), 0);
+	MEM_IN_STRUCT_P (target) = AGGREGATE_TYPE_P (part_type);
 	if (! memory_address_p (TYPE_MODE (part_type), XEXP (target, 0)))
 	  target = change_address (target, TYPE_MODE (part_type), NULL_RTX);
 	parts = tree_cons (to_be_saved,
@@ -5025,6 +5026,7 @@ expand_expr (exp, target, tmode, modifier)
 					      (TREE_INT_CST_LOW (TYPE_SIZE (type))
 					       + BITS_PER_UNIT - 1)
 					      / BITS_PER_UNIT, 0);
+		  MEM_IN_STRUCT_P (target) = AGGREGATE_TYPE_P (type);
 		}
 	      else
 		target = gen_reg_rtx (tmode != VOIDmode ? tmode : mode);
@@ -6014,6 +6016,7 @@ expand_expr (exp, target, tmode, modifier)
 	    else
 	      {
 		target = assign_stack_temp (mode, int_size_in_bytes (type), 2);
+		MEM_IN_STRUCT_P (target) = AGGREGATE_TYPE_P (type);
 		/* All temp slots at this level must not conflict.  */
 		preserve_temp_slots (target);
 		DECL_RTL (slot) = target;
@@ -6222,6 +6225,7 @@ expand_expr (exp, target, tmode, modifier)
 	      rtx memloc
 		= assign_stack_temp (inner_mode,
 				     int_size_in_bytes (inner_type), 1);
+	      MEM_IN_STRUCT_P (memloc) = AGGREGATE_TYPE_P (inner_type);
 
 	      mark_temp_addr_taken (memloc);
 	      emit_move_insn (memloc, op0);

gcc/function.c

@@ -3646,6 +3646,7 @@ assign_parms (fndecl, second_time)
 	      else
 		copy = assign_stack_temp (TYPE_MODE (type),
 					  int_size_in_bytes (type), 1);
+	      MEM_IN_STRUCT_P (copy) = AGGREGATE_TYPE_P (type);
 
 	      store_expr (parm, copy, 0);
 	      emit_move_insn (parmreg, XEXP (copy, 0));

gcc/integrate.c

@@ -1271,6 +1271,7 @@ expand_inline_function (fndecl, parms, target, ignore, type, structure_value_add
 	  rtx stack_slot
 	    = assign_stack_temp (TYPE_MODE (TREE_TYPE (arg)),
 				 int_size_in_bytes (TREE_TYPE (arg)), 1);
+	  MEM_IN_STRUCT_P (stack_slot) = AGGREGATE_TYPE_P (TREE_TYPE (arg));
 
 	  store_expr (arg, stack_slot, 0);
 

gcc/stmt.c

@@ -3248,6 +3248,7 @@ expand_decl (decl)
 	/* An initializer is going to decide the size of this array.
 	   Until we know the size, represent its address with a reg.  */
 	DECL_RTL (decl) = gen_rtx (MEM, BLKmode, gen_reg_rtx (Pmode));
+      MEM_IN_STRUCT_P (DECL_RTL (decl)) = AGGREGATE_TYPE_P (type);
     }
   else if (DECL_MODE (decl) != BLKmode
 	   /* If -ffloat-store, don't put explicit float vars
@@ -3309,6 +3310,7 @@ expand_decl (decl)
 			       + BITS_PER_UNIT - 1)
 			      / BITS_PER_UNIT),
 			     1);
+      MEM_IN_STRUCT_P (DECL_RTL (decl)) = AGGREGATE_TYPE_P (TREE_TYPE (decl));
 
       /* Set alignment we actually gave this decl.  */
       DECL_ALIGN (decl) = (DECL_MODE (decl) == BLKmode ? BIGGEST_ALIGNMENT