re PR c++/12989 ([new parser] internal compiler error: tree check: expected field_decl)

	PR c++/12989
	* typeck.c (cxx_sizeof_or_alignof_expr): Robustify.

	PR c++/12989
	* g++.dg/expr/sizeof1.C: New test.

From-SVN: r74660

gcc/cp/ChangeLog

 2003-12-15  Mark Mitchell  <mark@codesourcery.com>
 
+	PR c++/12989
+	* typeck.c (cxx_sizeof_or_alignof_expr): Robustify.
+
 	PR c++/13310
 	* pt.c (dependent_template_p): Handle OVERLOADs.
 

gcc/cp/typeck.c

@@ -1233,6 +1233,7 @@ cxx_sizeof_or_alignof_expr (tree e, enum tree_code op)
     }
   
   if (TREE_CODE (e) == COMPONENT_REF
+      && TREE_CODE (TREE_OPERAND (e, 1)) == FIELD_DECL
       && DECL_C_BIT_FIELD (TREE_OPERAND (e, 1)))
     {
       error ("invalid application of `%s' to a bit-field", op_name);

gcc/testsuite/ChangeLog

 2003-12-15  Mark Mitchell  <mark@codesourcery.com>
 
+	PR c++/12989
+	* g++.dg/expr/sizeof1.C: New test.
+
 	PR c++/13310
 	* g++.dg/template/crash15.C: New test.
 

gcc/testsuite/g++.dg/expr/sizeof1.C

+// PR c++/12989
+
+struct A
+{
+  int foo() { return sizeof(bar); } // { dg-error "" }
+  int bar();
+};