This is the mail archive of the
gcc-bugs@gcc.gnu.org
mailing list for the GCC project.
[Bug c++/84496] [6/7 Regression] Internal compiler error with lambda, static and auto since r236615
- From: "jakub at gcc dot gnu.org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: Thu, 22 Feb 2018 09:52:27 +0000
- Subject: [Bug c++/84496] [6/7 Regression] Internal compiler error with lambda, static and auto since r236615
- Auto-submitted: auto-generated
- References: <bug-84496-4@http.gcc.gnu.org/bugzilla/>
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=84496
Jakub Jelinek <jakub at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |NEW
Last reconfirmed| |2018-02-22
CC| |jakub at gcc dot gnu.org,
| |jason at gcc dot gnu.org
Version|unknown |7.0
Target Milestone|--- |6.5
Summary|Internal compiler error |[6/7 Regression] Internal
|with lambda, static and |compiler error with lambda,
|auto |static and auto since
| |r236615
Ever confirmed|0 |1
--- Comment #1 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Started with r236615 and got fixed on the trunk with r253600.
Reduced testcase:
// PR c++/84496
// { dg-do compile { target c++14 } }
template <typename T, T n> struct C { static constexpr T D = n; };
struct E : C<bool, false> {};
template <typename> struct F : C<bool, false> {};
template <typename T> T foo ();
template <typename> struct H { typedef int G; };
template <typename> class I;
struct L;
template <typename, typename> struct J;
template <bool, bool, typename...> struct K;
struct R {
template <typename M, typename... N>
static J<decltype (foo<M> () (foo<N>...)), L> o;
};
template <typename P, typename... Q> struct K<false, false, P, Q...> : R {
typedef decltype (o<P, Q...>) G;
};
template <typename P, typename... Q>
struct D : K<E::D, F<typename H<P>::G>::D, P, Q...> {};
template <typename P, typename... Q> struct I<P (Q...)> : D<P, Q...> {};
template <typename> class function;
template <typename S, typename... Q> struct function<S (Q...)> {
template <typename T, typename = typename I<T (Q...)>::G> struct C;
template <typename, typename> using U = int;
template <typename P, typename = U<int, void>, typename = U<C<P>, void>>
function (P);
};
template <typename S, typename... Q>
template <typename P, typename, typename>
function<S (Q...)>::function (P)
{
}
void bar (function<void (int)>);
void
baz ()
{
auto a = [] {
static int counter;
bar ([] (auto) { counter++; });
};
}
Will commit the testcase to trunk now to make sure we don't regress it again.