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re PR c++/52596 ([C++11] internal compiler error: in lvalue_kind, at cp/tree.c:153) 

PR c++/52596
	* tree.c (lvalue_kind): Treat a deferred access control SCOPE_REF
	as an lvalue.

From-SVN: r186188
This commit is contained in:
Jason Merrill 2012-04-06 09:26:14 -04:00 committed by Jason Merrill
parent 1d02a30769
commit 6b8fa44f0a
4 changed files with 36 additions and 2 deletions
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6
gcc/cp/ChangeLog
View File

@ -1,3 +1,9 @@
2012-04-05 Jason Merrill <jason@redhat.com>
PR c++/52596
* tree.c (lvalue_kind): Treat a deferred access control SCOPE_REF
as an lvalue.
2012-04-03 Jason Merrill <jason@redhat.com>
PR c++/52796

10
gcc/cp/tree.c
View File

@ -150,8 +150,14 @@ lvalue_kind (const_tree ref)
/* A scope ref in a template, left as SCOPE_REF to support later
access checking. */
case SCOPE_REF:
gcc_assert (!type_dependent_expression_p (CONST_CAST_TREE(ref)));
return lvalue_kind (TREE_OPERAND (ref, 1));
{
tree op = TREE_OPERAND (ref, 1);
/* The member must be an lvalue; assume it isn't a bit-field. */
if (TREE_CODE (op) == IDENTIFIER_NODE)
return clk_ordinary;
gcc_assert (!type_dependent_expression_p (CONST_CAST_TREE (ref)));
return lvalue_kind (op);
}
case MAX_EXPR:
case MIN_EXPR:

5
gcc/testsuite/ChangeLog
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@ -1,3 +1,8 @@
2012-04-05 Jason Merrill <jason@redhat.com>
PR c++/52596
* g++.dg/template/qualified-id5.C: New.
2012-04-03 Jason Merrill <jason@redhat.com>
PR c++/52796

17
gcc/testsuite/g++.dg/template/qualified-id5.C Normal file
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@ -0,0 +1,17 @@
// PR c++/52596
struct msgpack_zone_finalizer_array {
int* tail;
};
struct msgpack_zone {
msgpack_zone_finalizer_array finalizer_array;
};
struct zone : public msgpack_zone {
template <typename T> T* allocate();
};
template <typename T>
T* zone::allocate()
{
--msgpack_zone::finalizer_array.tail;
}