[Bug c++/80186] New: ICE on C++ code with invalid constructor on x86_64-linux-gnu: Segmentation fault (program cc1plus)

[su at cs dot ucdavis.edu]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=80186

            Bug ID: 80186
           Summary: ICE on C++ code with invalid constructor on
                    x86_64-linux-gnu: Segmentation fault (program cc1plus)
           Product: gcc
           Version: unknown
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c++
          Assignee: unassigned at gcc dot gnu.org
          Reporter: su at cs dot ucdavis.edu
  Target Milestone: ---

This seems to affect at least all versions 4.6.x and later.

$ g++-trunk -v
Using built-in specs.
COLLECT_GCC=g++-trunk
COLLECT_LTO_WRAPPER=/usr/local/gcc-trunk/libexec/gcc/x86_64-pc-linux-gnu/7.0.1/lto-wrapper
Target: x86_64-pc-linux-gnu
Configured with: ../gcc-source-trunk/configure --enable-languages=c,c++,lto
--prefix=/usr/local/gcc-trunk --disable-bootstrap
Thread model: posix
gcc version 7.0.1 20170325 (experimental) [trunk revision 246473] (GCC) 
$ 
$ g++-trunk -c small.cpp
small.cpp: In instantiation of ‘struct A<int, int>’:
small.cpp:10:34:   required from here
small.cpp:5:3: error: invalid constructor; you probably meant ‘A<int, int>
(const A<int, int>&)’
   A (A < T, T >);
   ^
g++-trunk: internal compiler error: Segmentation fault (program cc1plus)
Please submit a full bug report,
with preprocessed source if appropriate.
See <https://gcc.gnu.org/bugs/> for instructions.
$ 


----------------------------------------


template < class T, class > struct A
{
  A ();
  A (A &);
  A (A < T, T >);
};

void f () 
{
  A < int, int > (A < int, int >());
}