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

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

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 0128a28..6f40fa1 100644 (file)
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,8 @@
+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

diff --git a/gcc/expr.c b/gcc/expr.c
index 479dacf..81112da 100644 (file)
--- a/gcc/expr.c
+++ b/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);