re PR target/44643 ([avr] ICE in c-typeck.c)

	PR target/44643
	* config/avr/avr.c (avr_insert_attributes): Use TYPE_READONLY
	instead of TREE_READONLY.

From-SVN: r175809

gcc/ChangeLog

 2011-07-04  Georg-Johann Lay  <avr@gjlay.de>
 
+	PR target/44643
+	* config/avr/avr.c (avr_insert_attributes): Use TYPE_READONLY
+	instead of TREE_READONLY.
+
+2011-07-04  Georg-Johann Lay  <avr@gjlay.de>
+
 	* doc/extend.texi (AVR Built-in Functions): Update documentation
 	of __builtin_avr_fmul*.
 	* config/avr/avr.c (avr_init_builtins): Don't depend on

gcc/config/avr/avr.c

@@ -5030,7 +5030,19 @@ avr_insert_attributes (tree node, tree *attributes)
       && (TREE_STATIC (node) || DECL_EXTERNAL (node))
       && avr_progmem_p (node, *attributes))
     {
-      if (TREE_READONLY (node)) 
+      tree node0 = node;
+
+      /* For C++, we have to peel arrays in order to get correct
+         determination of readonlyness.  */
+      
+      do
+        node0 = TREE_TYPE (node0);
+      while (TREE_CODE (node0) == ARRAY_TYPE);
+
+      if (error_mark_node == node0)
+        return;
+      
+      if (TYPE_READONLY (node0))
         {
           static const char dsec[] = ".progmem.data";