re PR middle-end/32940 (REG_POINTER attribute on DECL_ARTIFICIAL pointers)

2007-08-19  Andrew Pinski  <andrew_pinski@playstation.sony.com>

        PR middle-end/32940
        * cfgexpand.c  (expand_one_register_var): Mark pointer
        DECL_ARTIFICIAL as REG_POINTER also.
        * stmt.c (expand_decl): Likewise.

From-SVN: r127634

gcc/ChangeLog

+2007-08-19  Andrew Pinski  <andrew_pinski@playstation.sony.com>
+
+	PR middle-end/32940
+	* cfgexpand.c  (expand_one_register_var): Mark pointer
+	DECL_ARTIFICIAL as REG_POINTER also.
+	* stmt.c (expand_decl): Likewise.
+
 2007-08-19  Daniel Berlin  <dberlin@dberlin.org>
 
 	Fix PR 32772

gcc/cfgexpand.c

@@ -673,18 +673,10 @@ expand_one_register_var (tree var)
 
   /* Note if the object is a user variable.  */
   if (!DECL_ARTIFICIAL (var))
-    {
       mark_user_reg (x);
 
-      /* Trust user variables which have a pointer type to really
-	 be pointers.  Do not trust compiler generated temporaries
-	 as our type system is totally busted as it relates to
-	 pointer arithmetic which translates into lots of compiler
-	 generated objects with pointer types, but which are not really
-	 pointers.  */
-      if (POINTER_TYPE_P (type))
-	mark_reg_pointer (x, TYPE_ALIGN (TREE_TYPE (TREE_TYPE (var))));
-    }
+  if (POINTER_TYPE_P (type))
+    mark_reg_pointer (x, TYPE_ALIGN (TREE_TYPE (TREE_TYPE (var))));
 }
 
 /* A subroutine of expand_one_var.  Called to assign rtl to a VAR_DECL that

gcc/stmt.c

@@ -1898,19 +1898,11 @@ expand_decl (tree decl)
 
       /* Note if the object is a user variable.  */
       if (!DECL_ARTIFICIAL (decl))
-	{
 	  mark_user_reg (DECL_RTL (decl));
 
-	  /* Trust user variables which have a pointer type to really
-	     be pointers.  Do not trust compiler generated temporaries
-	     as our type system is totally busted as it relates to
-	     pointer arithmetic which translates into lots of compiler
-	     generated objects with pointer types, but which are not really
-	     pointers.  */
-	  if (POINTER_TYPE_P (type))
-	    mark_reg_pointer (DECL_RTL (decl),
-			      TYPE_ALIGN (TREE_TYPE (TREE_TYPE (decl))));
-	}
+      if (POINTER_TYPE_P (type))
+	mark_reg_pointer (DECL_RTL (decl),
+			  TYPE_ALIGN (TREE_TYPE (TREE_TYPE (decl))));
     }
 
   else if (TREE_CODE (DECL_SIZE_UNIT (decl)) == INTEGER_CST