re PR c++/46670 (ICE in dependent_type_p, at cp/pt.c:17553)

	PR c++/46670
	* pt.c (value_dependent_expression_p) [ARRAY_REF]: Handle
	properly.

From-SVN: r167993

gcc/cp/ChangeLog

+2010-12-17  Jason Merrill  <jason@redhat.com>
+
+	PR c++/46670
+	* pt.c (value_dependent_expression_p) [ARRAY_REF]: Handle
+	properly.
+
 2010-12-15  Nathan Froyd  <froydnj@codesourcery.com>
 
 	PR c++/39859

gcc/cp/pt.c

@@ -18108,6 +18108,10 @@ value_dependent_expression_p (tree expression)
       return ((value_dependent_expression_p (TREE_OPERAND (expression, 0)))
 	      || (value_dependent_expression_p (TREE_OPERAND (expression, 2))));
 
+    case ARRAY_REF:
+      return ((value_dependent_expression_p (TREE_OPERAND (expression, 0)))
+	      || (value_dependent_expression_p (TREE_OPERAND (expression, 1))));
+
     case ADDR_EXPR:
       {
 	tree op = TREE_OPERAND (expression, 0);

gcc/testsuite/ChangeLog

+2010-12-17  Jason Merrill  <jason@redhat.com>
+
+	PR c++/46670
+	* g++.dg/cpp0x/constexpr-null1.C: New.
+
 2010-12-17  Bernd Schmidt  <bernds@codesourcery.com>
 
 	* gcc.c-torture/compile/20101217-1.c: New test.

gcc/testsuite/g++.dg/constexpr-null1.C

+// PR c++/46670
+// { dg-options -std=c++0x }
+
+extern unsigned char __TBB_ReverseByte(unsigned char src);
+extern unsigned char *reversed;
+template<typename T> T __TBB_ReverseBits(T src)
+{
+  unsigned char *original = (unsigned char *) &src;
+  for( int i = sizeof(T)-1; i--; )
+    reversed[i] = __TBB_ReverseByte( original[sizeof(T)-i-1] );
+}