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* [Bug c++/95193] New: [11 Regression] ICE in tsubst_decl, at cp/pt.c:14624
@ 2020-05-18 20:11 asolokha at gmx dot com
  2020-05-18 20:22 ` [Bug c++/95193] " mpolacek at gcc dot gnu.org
                   ` (3 more replies)
  0 siblings, 4 replies; 5+ messages in thread
From: asolokha at gmx dot com @ 2020-05-18 20:11 UTC (permalink / raw)
  To: gcc-bugs

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=95193

            Bug ID: 95193
           Summary: [11 Regression] ICE in tsubst_decl, at cp/pt.c:14624
           Product: gcc
           Version: 11.0
            Status: UNCONFIRMED
          Keywords: ice-on-valid-code
          Severity: normal
          Priority: P3
         Component: c++
          Assignee: unassigned at gcc dot gnu.org
          Reporter: asolokha at gmx dot com
  Target Milestone: ---

gcc-11.0.0-alpha20200517 snapshot (g:2b9a271b2d0ba340234a138b7f8289bd7dca2fc5)
ICEs when compiling the following testcase, extracted from
test/SemaCXX/cxx1z-lambda-star-this.cpp from the clang 10.0.0 test suite, w/
-std=c++17:

struct X {
  void foo() const {
    auto GL1 = [*this](auto a) {
    };

    GL1("abc");
  }
};

% g++-11.0.0 -std=c++17 -c g5fztf1w.cpp
g5fztf1w.cpp: In instantiation of 'X::foo() const::<lambda(auto:1)> [with
auto:1 = const char*]':
g5fztf1w.cpp:6:14:   required from here
g5fztf1w.cpp:3:30: internal compiler error: in tsubst_decl, at cp/pt.c:14624
    3 |     auto GL1 = [*this](auto a) {
      |                              ^
0x662811 tsubst_decl
       
/var/tmp/portage/sys-devel/gcc-11.0.0_alpha20200517/work/gcc-11-20200517/gcc/cp/pt.c:14624
0x9fa006 tsubst_expr(tree_node*, tree_node*, int, tree_node*, bool)
       
/var/tmp/portage/sys-devel/gcc-11.0.0_alpha20200517/work/gcc-11-20200517/gcc/cp/pt.c:17921
0x9f8267 tsubst_expr(tree_node*, tree_node*, int, tree_node*, bool)
       
/var/tmp/portage/sys-devel/gcc-11.0.0_alpha20200517/work/gcc-11-20200517/gcc/cp/pt.c:18138
0x9f536a instantiate_decl(tree_node*, bool, bool)
       
/var/tmp/portage/sys-devel/gcc-11.0.0_alpha20200517/work/gcc-11-20200517/gcc/cp/pt.c:25609
0x926d1a maybe_instantiate_decl
       
/var/tmp/portage/sys-devel/gcc-11.0.0_alpha20200517/work/gcc-11-20200517/gcc/cp/decl2.c:5377
0x929558 maybe_instantiate_decl
       
/var/tmp/portage/sys-devel/gcc-11.0.0_alpha20200517/work/gcc-11-20200517/gcc/tree.h:3411
0x929558 mark_used(tree_node*, int)
       
/var/tmp/portage/sys-devel/gcc-11.0.0_alpha20200517/work/gcc-11-20200517/gcc/cp/decl2.c:5573
0x87afa3 build_over_call
       
/var/tmp/portage/sys-devel/gcc-11.0.0_alpha20200517/work/gcc-11-20200517/gcc/cp/call.c:9077
0x87ff91 build_op_call_1
       
/var/tmp/portage/sys-devel/gcc-11.0.0_alpha20200517/work/gcc-11-20200517/gcc/cp/call.c:4883
0x87ff91 build_op_call(tree_node*, vec<tree_node*, va_gc, vl_embed>**, int)
       
/var/tmp/portage/sys-devel/gcc-11.0.0_alpha20200517/work/gcc-11-20200517/gcc/cp/call.c:4912
0xa3d83e finish_call_expr(tree_node*, vec<tree_node*, va_gc, vl_embed>**, bool,
bool, int)
       
/var/tmp/portage/sys-devel/gcc-11.0.0_alpha20200517/work/gcc-11-20200517/gcc/cp/semantics.c:2692
0x9b3e51 cp_parser_postfix_expression
       
/var/tmp/portage/sys-devel/gcc-11.0.0_alpha20200517/work/gcc-11-20200517/gcc/cp/parser.c:7465
0x9958e9 cp_parser_binary_expression
       
/var/tmp/portage/sys-devel/gcc-11.0.0_alpha20200517/work/gcc-11-20200517/gcc/cp/parser.c:9559
0x99759e cp_parser_assignment_expression
       
/var/tmp/portage/sys-devel/gcc-11.0.0_alpha20200517/work/gcc-11-20200517/gcc/cp/parser.c:9864
0x997963 cp_parser_expression
       
/var/tmp/portage/sys-devel/gcc-11.0.0_alpha20200517/work/gcc-11-20200517/gcc/cp/parser.c:10032
0x99a918 cp_parser_expression_statement
       
/var/tmp/portage/sys-devel/gcc-11.0.0_alpha20200517/work/gcc-11-20200517/gcc/cp/parser.c:11692
0x9a5f73 cp_parser_statement
       
/var/tmp/portage/sys-devel/gcc-11.0.0_alpha20200517/work/gcc-11-20200517/gcc/cp/parser.c:11488
0x9a7828 cp_parser_statement_seq_opt
       
/var/tmp/portage/sys-devel/gcc-11.0.0_alpha20200517/work/gcc-11-20200517/gcc/cp/parser.c:11839
0x9a7908 cp_parser_compound_statement
       
/var/tmp/portage/sys-devel/gcc-11.0.0_alpha20200517/work/gcc-11-20200517/gcc/cp/parser.c:11789
0x9bfcf5 cp_parser_function_body
       
/var/tmp/portage/sys-devel/gcc-11.0.0_alpha20200517/work/gcc-11-20200517/gcc/cp/parser.c:23058

^ permalink raw reply	[flat|nested] 5+ messages in thread
end of thread, other threads:[~2020-06-03 18:11 UTC | newest]

Thread overview: 5+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2020-05-18 20:11 [Bug c++/95193] New: [11 Regression] ICE in tsubst_decl, at cp/pt.c:14624 asolokha at gmx dot com
2020-05-18 20:22 ` [Bug c++/95193] " mpolacek at gcc dot gnu.org
2020-06-01 21:23 ` jason at gcc dot gnu.org
2020-06-02 19:00 ` cvs-commit at gcc dot gnu.org
2020-06-03 18:11 ` jason at gcc dot gnu.org

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