https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98881
Bug ID: 98881 Summary: [modules] internal compiler error: in tpl_parms_fini, at cp/module.cc:9933 Product: gcc Version: 11.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: c++ Assignee: unassigned at gcc dot gnu.org Reporter: pilarlatiesa at gmail dot com Target Milestone: --- $ /home/pililatiesa/GCC-11/bin/g++ -v Using built-in specs. COLLECT_GCC=/home/pililatiesa/GCC-11/bin/g++ COLLECT_LTO_WRAPPER=/home/pililatiesa/GCC-11/bin/../libexec/gcc/x86_64-pc-linux-gnu/11.0.0/lto-wrapper.exe Target: x86_64-pc-linux-gnu Configured with: ../gcc-master/configure --prefix=/home/pililatiesa/GCC-11 --enable-languages=c++ --disable-bootstrap Thread model: posix Supported LTO compression algorithms: zlib gcc version 11.0.0 20210129 (experimental) (GCC) $ cat Expresion.ixx export module Expr; template <int, int, typename, typename> class TExprSistema; template <typename T> class TExprBase {}; export template<int d, int r1, typename... TRest, template <int, int, typename...> typename T> class TExprBase<T<d, r1, TRest...>> { public: template<typename... URest, template <int, int, typename...> typename U> TExprSistema<d, r1, T<d, r1, TRest...>, U<d, r1, URest...>> inline operator ==(TExprBase<U<d, r1, URest...>> const &rhs) const noexcept { return {*this, rhs}; } }; export template<int d, int r, typename T, typename U> class TExprSistema: public TExprBase<TExprSistema<d, r, T, U>> { private: TExprBase<T> const &lhs; TExprBase<U> const &rhs; public: inline TExprSistema(TExprBase<T> const &lhs_, TExprBase<U> const &rhs_) noexcept : lhs(lhs_), rhs(rhs_) {} }; $ /home/pililatiesa/GCC-11/bin/g++ -fmodules-ts -x c++ -std=c++20 Expresion.ixx -o foo Expresion.ixx:2:8: internal compiler error: in tpl_parms_fini, at cp/module.cc:9933 2 | export module Expr; | ^~~~~~ Expresion.ixx:2:8: internal compiler error: Aborted g++: internal compiler error: Aborted signal terminated program cc1plus Please submit a full bug report, with preprocessed source if appropriate. See <https://gcc.gnu.org/bugs/> for instructions.