expr.c (expand_expr_real_1): Remove setting parent's alias set for temporaries…

expr.c (expand_expr_real_1): Remove setting parent's alias set for temporaries created for a bitfield...

2012-04-23  Martin Jambor  <mjambor@suse.cz>

	* expr.c (expand_expr_real_1): Remove setting parent's alias set for
	temporaries created for a bitfield (reverting revision 122014).

From-SVN: r186718

gcc/ChangeLog

+2012-04-23  Martin Jambor  <mjambor@suse.cz>
+
+	* expr.c (expand_expr_real_1): Remove setting parent's alias set for
+	temporaries created for a bitfield (reverting revision 122014).
+
 2012-04-23  Richard Guenther  <rguenther@suse.de>
 
 	* tree-vect-loop-manip.c (slpeel_add_loop_guard): Gimplify

gcc/expr.c

@@ -9903,19 +9903,11 @@ expand_expr_real_1 (tree exp, rtx target, enum machine_mode tmode,
 	       necessarily be constant.  */
 	    if (mode == BLKmode)
 	      {
-		HOST_WIDE_INT size = GET_MODE_BITSIZE (ext_mode);
 		rtx new_rtx;
 
-		/* If the reference doesn't use the alias set of its type,
-		   we cannot create the temporary using that type.  */
-		if (component_uses_parent_alias_set (exp))
-		  {
-		    new_rtx = assign_stack_local (ext_mode, size, 0);
-		    set_mem_alias_set (new_rtx, get_alias_set (exp));
-		  }
-		else
-		  new_rtx = assign_stack_temp_for_type (ext_mode, size, 0, type);
-
+		new_rtx = assign_stack_temp_for_type (ext_mode,
+						   GET_MODE_BITSIZE (ext_mode),
+						   0, type);
 		emit_move_insn (new_rtx, op0);
 		op0 = copy_rtx (new_rtx);
 		PUT_MODE (op0, BLKmode);