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* [Bug c++/97034] New: ICE on C++20 code: gcc_assert failure in return type deduction (gcc/cp/pt.c:26984 in type_dependent_expression_p(tree_node*))
@ 2020-09-12 14:51 dimitri.gorokhovik at free dot fr
  2020-09-13 22:16 ` [Bug c++/97034] [11 Regression] " mpolacek at gcc dot gnu.org
                   ` (10 more replies)
  0 siblings, 11 replies; 12+ messages in thread
From: dimitri.gorokhovik at free dot fr @ 2020-09-12 14:51 UTC (permalink / raw)
  To: gcc-bugs

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97034

            Bug ID: 97034
           Summary: ICE on C++20 code: gcc_assert failure in return type
                    deduction (gcc/cp/pt.c:26984 in
                    type_dependent_expression_p(tree_node*))
           Product: gcc
           Version: 11.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c++
          Assignee: unassigned at gcc dot gnu.org
          Reporter: dimitri.gorokhovik at free dot fr
  Target Milestone: ---

The code:

#include <tuple>

template <unsigned N>
struct s
{
        template <typename R>
        struct ss
        {
                R _1;
                unsigned _2;
        };

        constexpr auto f ()
        {
                return ss { std::pair <char, int> { 'a', 1 }, 1 };
        };
};


when compiled as:
g++  -std=c++20 -o bug-3.o -c bug-3.cpp

produces:

bug-3.cpp: In member function ‘constexpr auto s<N>::f()’:
bug-3.cpp:15:65: internal compiler error: in type_dependent_expression_p, at
cp/pt.c:26984
   15 |                 return ss { std::pair <char, int> { 'a', 1 }, 1 };
      |                                                                 ^
0x680638 type_dependent_expression_p(tree_node*)
        ../../src/gcc/cp/pt.c:26984
0xa22cf9 maybe_instantiate_noexcept(tree_node*, int)
        ../../src/gcc/cp/pt.c:25290
0x9598c2 mark_used(tree_node*, int)
        ../../src/gcc/cp/decl2.c:5552
0xaa8d36 cp_build_addr_expr_1
        ../../src/gcc/cp/typeck.c:6384
0x8ab692 build_over_call
        ../../src/gcc/cp/call.c:8522
0x8ae85a build_new_function_call(tree_node*, vec<tree_node*, va_gc,
vl_embed>**, int)
        ../../src/gcc/cp/call.c:4641
0xa1a4ed do_class_deduction
        ../../src/gcc/cp/pt.c:29027
0xa1a4ed do_auto_deduction(tree_node*, tree_node*, tree_node*, int,
auto_deduction_context, tree_node*, int)
        ../../src/gcc/cp/pt.c:29085
0xa6def9 finish_compound_literal(tree_node*, tree_node*, int, fcl_t)
        ../../src/gcc/cp/semantics.c:2934
0x9ca12a cp_parser_functional_cast
        ../../src/gcc/cp/parser.c:29690
0x9e26d7 cp_parser_postfix_expression
        ../../src/gcc/cp/parser.c:7251
0x9c443a cp_parser_binary_expression
        ../../src/gcc/cp/parser.c:9648
0x9c61ce cp_parser_assignment_expression
        ../../src/gcc/cp/parser.c:9953
0x9c64e2 cp_parser_expression
        ../../src/gcc/cp/parser.c:10121
0x9d5527 cp_parser_jump_statement
        ../../src/gcc/cp/parser.c:13192
0x9d5527 cp_parser_statement
        ../../src/gcc/cp/parser.c:11455
0x9d6a8d cp_parser_statement_seq_opt
        ../../src/gcc/cp/parser.c:11928
0x9d6b68 cp_parser_compound_statement
        ../../src/gcc/cp/parser.c:11878
0x9eecb5 cp_parser_function_body
        ../../src/gcc/cp/parser.c:23177
0x9eecb5 cp_parser_ctor_initializer_opt_and_function_body
        ../../src/gcc/cp/parser.c:23228
Please submit a full bug report,


GCC version:
g++ (GCC) 11.0.0 20200910 (experimental)

^ permalink raw reply	[flat|nested] 12+ messages in thread
end of thread, other threads:[~2021-03-03 15:04 UTC | newest]

Thread overview: 12+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2020-09-12 14:51 [Bug c++/97034] New: ICE on C++20 code: gcc_assert failure in return type deduction (gcc/cp/pt.c:26984 in type_dependent_expression_p(tree_node*)) dimitri.gorokhovik at free dot fr
2020-09-13 22:16 ` [Bug c++/97034] [11 Regression] " mpolacek at gcc dot gnu.org
2020-09-16 16:27 ` mpolacek at gcc dot gnu.org
2020-09-16 18:02 ` mpolacek at gcc dot gnu.org
2020-09-16 18:42 ` mpolacek at gcc dot gnu.org
2020-10-12 11:52 ` rguenth at gcc dot gnu.org
2021-01-09  4:42 ` arthur.j.odwyer at gmail dot com
2021-02-12  1:27 ` mpolacek at gcc dot gnu.org
2021-02-12  1:44 ` mpolacek at gcc dot gnu.org
2021-02-12  4:15 ` mpolacek at gcc dot gnu.org
2021-03-03 14:53 ` cvs-commit at gcc dot gnu.org
2021-03-03 15:04 ` mpolacek at gcc dot gnu.org

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