https://gcc.gnu.org/bugzilla/show_bug.cgi?id=95930

            Bug ID: 95930
           Summary: ICE: Segmentation fault signal terminated program
                    cc1plus
           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-trunk ICE with Segmentation
fault signal terminated program cc1plus.

$cat bug.cc
long  a  =  [] ( class {


$g++ bug.cc
bug.cc:1:24: error: types may not be defined in parameter types
    1 | long  a  =  [] ( class {
      |                        ^
bug.cc:2: error: expected ‘}’ at end of input
bug.cc:1:24: note: to match this ‘{’
    1 | long  a  =  [] ( class {
      |                        ^
bug.cc:2: error: expected ‘,’ or ‘...’ at end of input
bug.cc:1:25: error: expected ‘)’ at end of input
    1 | long  a  =  [] ( class {
      |                ~        ^
      |                         )
g++: internal compiler error: Segmentation fault signal terminated program
cc1plus
Please submit a full bug report,
with preprocessed source if appropriate.
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.

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