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From: "haoxintu at gmail dot com" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug c++/95927] New: ICE in cp_lexer_new_from_tokens, at cp/parser.c:701
Date: Sat, 27 Jun 2020 02:21:29 +0000	[thread overview]
Message-ID: <bug-95927-4@http.gcc.gnu.org/bugzilla/> (raw)

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=95927

            Bug ID: 95927
           Summary: ICE in cp_lexer_new_from_tokens, at cp/parser.c:701
           Product: gcc
           Version: 11.0
            Status: UNCONFIRMED
          Keywords: ice-on-invalid-code
          Severity: normal
          Priority: P3
         Component: c++
          Assignee: unassigned at gcc dot gnu.org
          Reporter: haoxintu at gmail dot com
  Target Milestone: ---

This code, bug.cc, reduced by C-Reduce, makes GCC ICE.

$cat bug.cc
class {
struct a < struct { b ( {

$g++ bug.cc
bug.cc:2:8: error: ‘a’ is not a class template
    2 | struct a < struct { b ( {
      |        ^
bug.cc:2:19: error: types may not be defined in template arguments
    2 | struct a < struct { b ( {
      |                   ^
bug.cc:2:25: error: expected identifier before ‘{’ token
    2 | struct a < struct { b ( {
      |                         ^
bug.cc:2:24: error: expected ‘)’ before ‘{’ token
    2 | struct a < struct { b ( {
      |                       ~^~
      |                        )
bug.cc:2:21: error: ISO C++ forbids declaration of ‘b’ with no type
[]8;;https://gcc.gnu.org/onlinedocs/gcc/Warning-Options.html#index-fpermissive-fpermissive]8;;]
    2 | struct a < struct { b ( {
      |                     ^
bug.cc:3: error: expected ‘}’ at end of input
bug.cc:2:19: note: to match this ‘{’
    2 | struct a < struct { b ( {
      |                   ^
bug.cc:3: error: expected template-argument at end of input
bug.cc:3: error: expected ‘>’ at end of input
bug.cc:3: error: expected ‘{’ or ‘:’ at end of input
bug.cc:3: error: expected ‘{’ at end of input
bug.cc:3: error: expected unqualified-id at end of input
bug.cc:3: error: expected ‘}’ at end of input
bug.cc:1:7: note: to match this ‘{’
    1 | class {
      |       ^
bug.cc:3: internal compiler error: in cp_lexer_new_from_tokens, at
cp/parser.c:701
0x641d4d cp_parser_push_lexer_for_tokens
        ../../gcc/cp/parser.c:701
0x9c2bc5 cp_parser_late_parsing_for_member
        ../../gcc/cp/parser.c:29944
0x9a0ccb cp_parser_class_specifier_1
        ../../gcc/cp/parser.c:24230
0x9a1aa3 cp_parser_class_specifier
        ../../gcc/cp/parser.c:24254
0x9a1aa3 cp_parser_type_specifier
        ../../gcc/cp/parser.c:17762
0x9a2a02 cp_parser_decl_specifier_seq
        ../../gcc/cp/parser.c:14410
0x9a35c1 cp_parser_simple_declaration
        ../../gcc/cp/parser.c:13664
0x9cc926 cp_parser_declaration
        ../../gcc/cp/parser.c:13484
0x9cd06a cp_parser_translation_unit
        ../../gcc/cp/parser.c:4761
0x9cd06a c_parse_file()
        ../../gcc/cp/parser.c:44043
0xae4dbb c_common_parse_file()
        ../../gcc/c-family/c-opts.c:1190
Please submit a full bug report,
with preprocessed source if appropriate.
Please include the complete backtrace with any bug report.
See <https://gcc.gnu.org/bugs/> for instructions.


$g++ --version
g++ (GCC) 11.0.0 20200626 (experimental)
Copyright (C) 2020 Free Software Foundation, Inc.
This is free software; see the source for copying conditions.  There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.

             reply	other threads:[~2020-06-27  2:21 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-06-27  2:21 haoxintu at gmail dot com [this message]
2020-07-03  4:17 ` [Bug c++/95927] " haoxintu at gmail dot com
2020-07-08 21:50 ` mpolacek at gcc dot gnu.org
2021-12-29  0:24 ` pinskia at gcc dot gnu.org

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