[Bug c++/81171] New: Segfault with auto template deduction

[xonar.leroux at gmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=81171

            Bug ID: 81171
           Summary: Segfault with auto template deduction
           Product: gcc
           Version: 7.1.1
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c++
          Assignee: unassigned at gcc dot gnu.org
          Reporter: xonar.leroux at gmail dot com
  Target Milestone: ---

Created attachment 41608
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=41608&action=edit
Smallest case which still results in segfault

Running with

'g++ gcc_bug.cpp'

results in

'gcc_bug.cpp:8:1: internal compiler error: Segmentation fault'

Replacing auto with char results in successful compilation.

VERSIONS: g++ (GCC) 7.1.1 20170516

I also tested with GCC 5.4.0 and with -std=c++14 and it also segfaults.