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From: "asolokha at gmx dot com" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug c++/94480] New: ICE in cp_parser_abort_tentative_parse, at cp/parser.c:31858
Date: Fri, 03 Apr 2020 20:26:56 +0000	[thread overview]
Message-ID: <bug-94480-4@http.gcc.gnu.org/bugzilla/> (raw)

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=94480

            Bug ID: 94480
           Summary: ICE in cp_parser_abort_tentative_parse, at
                    cp/parser.c:31858
           Product: gcc
           Version: 10.0
            Status: UNCONFIRMED
          Keywords: ice-on-invalid-code
          Severity: normal
          Priority: P3
         Component: c++
          Assignee: unassigned at gcc dot gnu.org
          Reporter: asolokha at gmx dot com
  Target Milestone: ---

g++-10.0.1-alpha20200329 snapshot (g:60c254b279e8e8443b8ad26cc46b9e4084cff66c)
ICEs when compiling the following testcase, extracted from
test/CXX/expr/expr.prim/expr.prim.req/requires-expr.cpp from the clang 10.0.0
test suite, w/ -fconcepts:

template<typename T, typename U>
constexpr bool is_same_v = false;

static_assert(is_same_v<bool, decltype(requires { requires false; })>);

% g++-10.0.1 -fconcepts -c nn8nrioc.cpp
nn8nrioc.cpp:4:60: note: the expression 'false' evaluated to 'false'
    4 | static_assert(is_same_v<bool, decltype(requires { requires false; })>);
      |                                                   ~~~~~~~~~^~~~~
nn8nrioc.cpp:4:67: internal compiler error: in cp_parser_abort_tentative_parse,
at cp/parser.c:31858
    4 | static_assert(is_same_v<bool, decltype(requires { requires false; })>);
      |                                                                   ^
0x63c536 cp_parser_abort_tentative_parse
       
/var/tmp/portage/sys-devel/gcc-10.0.1_alpha20200329/work/gcc-10-20200329/gcc/cp/parser.c:31858
0x63c536 cp_parser_abort_tentative_parse
       
/var/tmp/portage/sys-devel/gcc-10.0.1_alpha20200329/work/gcc-10-20200329/gcc/cp/parser.c:31856
0x9a9b4f cp_parser_decltype_expr
       
/var/tmp/portage/sys-devel/gcc-10.0.1_alpha20200329/work/gcc-10-20200329/gcc/cp/parser.c:14832
0x9a9b4f cp_parser_decltype
       
/var/tmp/portage/sys-devel/gcc-10.0.1_alpha20200329/work/gcc-10-20200329/gcc/cp/parser.c:14920
0x9b34ef cp_parser_simple_type_specifier
       
/var/tmp/portage/sys-devel/gcc-10.0.1_alpha20200329/work/gcc-10-20200329/gcc/cp/parser.c:18008
0x996e45 cp_parser_type_specifier
       
/var/tmp/portage/sys-devel/gcc-10.0.1_alpha20200329/work/gcc-10-20200329/gcc/cp/parser.c:17784
0x9aca80 cp_parser_type_specifier_seq
       
/var/tmp/portage/sys-devel/gcc-10.0.1_alpha20200329/work/gcc-10-20200329/gcc/cp/parser.c:22385
0x9a53c7 cp_parser_type_id_1
       
/var/tmp/portage/sys-devel/gcc-10.0.1_alpha20200329/work/gcc-10-20200329/gcc/cp/parser.c:22202
0x9a82e3 cp_parser_template_type_arg
       
/var/tmp/portage/sys-devel/gcc-10.0.1_alpha20200329/work/gcc-10-20200329/gcc/cp/parser.c:22293
0x9acc1f cp_parser_template_argument
       
/var/tmp/portage/sys-devel/gcc-10.0.1_alpha20200329/work/gcc-10-20200329/gcc/cp/parser.c:17181
0x9acc1f cp_parser_template_argument_list
       
/var/tmp/portage/sys-devel/gcc-10.0.1_alpha20200329/work/gcc-10-20200329/gcc/cp/parser.c:17092
0x9acc1f cp_parser_enclosed_template_argument_list
       
/var/tmp/portage/sys-devel/gcc-10.0.1_alpha20200329/work/gcc-10-20200329/gcc/cp/parser.c:29761
0x9adf60 cp_parser_template_id
       
/var/tmp/portage/sys-devel/gcc-10.0.1_alpha20200329/work/gcc-10-20200329/gcc/cp/parser.c:16664
0x9ae62a cp_parser_class_name
       
/var/tmp/portage/sys-devel/gcc-10.0.1_alpha20200329/work/gcc-10-20200329/gcc/cp/parser.c:23696
0x9aa385 cp_parser_qualifying_entity
       
/var/tmp/portage/sys-devel/gcc-10.0.1_alpha20200329/work/gcc-10-20200329/gcc/cp/parser.c:6773
0x9aa385 cp_parser_nested_name_specifier_opt
       
/var/tmp/portage/sys-devel/gcc-10.0.1_alpha20200329/work/gcc-10-20200329/gcc/cp/parser.c:6455
0x9b2f59 cp_parser_simple_type_specifier
       
/var/tmp/portage/sys-devel/gcc-10.0.1_alpha20200329/work/gcc-10-20200329/gcc/cp/parser.c:18126
0x9a83ea cp_parser_postfix_expression
       
/var/tmp/portage/sys-devel/gcc-10.0.1_alpha20200329/work/gcc-10-20200329/gcc/cp/parser.c:7173
0x98a669 cp_parser_binary_expression
       
/var/tmp/portage/sys-devel/gcc-10.0.1_alpha20200329/work/gcc-10-20200329/gcc/cp/parser.c:9554
0x98c31e cp_parser_assignment_expression
       
/var/tmp/portage/sys-devel/gcc-10.0.1_alpha20200329/work/gcc-10-20200329/gcc/cp/parser.c:9859

             reply	other threads:[~2020-04-03 20:26 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-04-03 20:26 asolokha at gmx dot com [this message]
2020-04-04  9:48 ` [Bug c++/94480] [10 Regression] " marxin at gcc dot gnu.org
2020-04-04 13:57 ` jakub at gcc dot gnu.org
2020-04-07 16:00 ` ppalka at gcc dot gnu.org
2020-04-07 19:23 ` ppalka at gcc dot gnu.org
2020-04-08  5:10 ` jason at gcc dot gnu.org
2020-04-08  5:12 ` cvs-commit at gcc dot gnu.org
2020-04-08  5:16 ` jason at gcc dot gnu.org

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