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Re: 252.eon / current GCC


On Thu, 21 Feb 2002, Andreas Jaeger wrote:

> [... a compile error with 252.eon from SPEC2000 ...]

A reduced testcase for this problem is:

template <class T>
class Wrapper {
    Wrapper (T& a);
    Wrapper (const Wrapper<char>& ref);

template <class T>
class Element {
  T * operator[](int x);

void test()
  char bla = 42;
  Element< Wrapper <unsigned char> > elem;
  elem[1][1] = Wrapper<char> (bla);

The error is cause by this patch:

2002-02-20  Jakub Jelinek  <>
        * typeck.c (cp_pointer_int_sum): Renamed from
        pointer_int_sum, call pointer_int_sum.

In that process a certain thing got lost, namely the completion of the
inner TREE_TYPE on which size_in_bytes() is applied.  The below patch
fixes it for me.  I did not test the patch further.  Neither bootstrapped
nor regtested.  No time because of moving, sorry.

2002-02-21  Michael Matz  <>

	* typeck.c (cp_pointer_int_sum): Complete inner type which
	is used later by size_in_bytes().

Index: typeck.c
RCS file: /cvsroot/gcc/gcc/gcc/cp/typeck.c,v
retrieving revision 1.388
diff -u -p -r1.388 typeck.c
--- typeck.c	20 Feb 2002 23:05:42 -0000	1.388
+++ typeck.c	22 Feb 2002 02:54:39 -0000
@@ -4076,8 +4076,17 @@ cp_pointer_int_sum (resultcode, ptrop, i
      enum tree_code resultcode;
      register tree ptrop, intop;
-  if (!complete_type_or_else (TREE_TYPE (ptrop), ptrop))
+  tree res_type = TREE_TYPE (ptrop);
+  if (!complete_type_or_else (res_type, ptrop))
     return error_mark_node;
+  /* pointer_int_sum() uses size_in_bytes() on the TREE_TYPE(res_type)
+     in certain circumstance (when it's valid to do so).  So we need
+     to make sure it's complete.  We don't need to check here, if we
+     can actually complete it at all, as those checks will be done in
+     pointer_int_sum() anyway.  */
+  (void) complete_type (TREE_TYPE (res_type));

   return pointer_int_sum (resultcode, ptrop, fold (intop));

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