------- Comment #2 from rguenth at gcc dot gnu dot org 2010-08-09 13:56 -------
Probably easier to not set TREE_READONLY or MEM_READONY_P here.
Index: gcc/emit-rtl.c
===================================================================
--- gcc/emit-rtl.c (revision 163030)
+++ gcc/emit-rtl.c (working copy)
@@ -1669,7 +1670,8 @@ set_mem_attributes_minus_bitpos (rtx ref
base = get_base_address (base);
if (base && DECL_P (base)
&& TREE_READONLY (base)
- && (TREE_STATIC (base) || DECL_EXTERNAL (base)))
+ && (TREE_STATIC (base) || DECL_EXTERNAL (base))
+ && !TREE_THIS_VOLATILE (base))
MEM_READONLY_P (ref) = 1;
/* If this expression uses it's parent's alias set, mark it such
--
rguenth at gcc dot gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |NEW
Ever Confirmed|0 |1
Keywords| |wrong-code
Last reconfirmed|0000-00-00 00:00:00 |2010-08-09 13:56:06
date| |
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=45235
