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re PR c++/50800 (Internal compiler error in finish_member_declarations, possibly related to may_alias attribute)

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PR c++/50800
	* tree.c (apply_identity_attributes): Fix handling of classes.

From-SVN: r222591
This commit is contained in:
Jason Merrill 2015-04-29 16:51:05 -04:00 committed by Jason Merrill
parent 0373796b4d
commit 9f7fb685d9
3 changed files with 32 additions and 0 deletions
gcc
cp
ChangeLogtree.c
testsuite/g++.dg/cpp0x
alignas3.C

5
gcc/cp/ChangeLog

@ -1,3 +1,8 @@
2015-04-29 Jason Merrill <jason@redhat.com>
PR c++/50800
* tree.c (apply_identity_attributes): Fix handling of classes.
2015-04-29 Thomas Schwinge <thomas@codesourcery.com>
* parser.c (cp_parser_oacc_enter_exit_data): Use

7
gcc/cp/tree.c

@ -1187,6 +1187,13 @@ apply_identity_attributes (tree result, tree attribs, bool *remove_attributes)
tree new_attribs = NULL_TREE;
tree *p = &new_attribs;
if (OVERLOAD_TYPE_P (result))
{
/* On classes and enums all attributes are ingrained. */
gcc_assert (attribs == TYPE_ATTRIBUTES (result));
return result;
}
for (tree a = attribs; a; a = TREE_CHAIN (a))
{
const attribute_spec *as

20
gcc/testsuite/g++.dg/cpp0x/alignas3.C Normal file

@ -0,0 +1,20 @@
// PR c++/50800
// { dg-do compile { target c++11 } }
template <typename> struct A;
template <typename _Up> struct A<_Up *> { typedef _Up type; };
template <typename T> struct B { typedef typename A<T>::type type; };
template <typename> struct C;
template <typename From> struct C<const From> {
typedef typename B<From>::type SimpleType;
};
template <class> struct D { typedef int ret_type; };
template <class From> struct F {
typedef typename D<typename C<From>::SimpleType>::ret_type ret_type;
};
template <class, class Y> typename F<Y>::ret_type cast(Y &);
class CompoundStmt;
class alignas(8) Stmt {
Stmt *Children[1];
CompoundStmt *getBlock() const { cast<CompoundStmt>(Children[0]); }
};