[Bug other/80573] New: ICE: internal compiler error: in assign_temp, at function.c:961

["gjl at gcc dot gnu.org" <gcc-bugzilla at gcc dot gnu dot org>]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=80573

            Bug ID: 80573
           Summary: ICE: internal compiler error: in assign_temp, at
                    function.c:961
           Product: gcc
           Version: 6.3.1
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: other
          Assignee: unassigned at gcc dot gnu.org
          Reporter: gjl at gcc dot gnu.org
  Target Milestone: ---

This PR looks similar to PR71210, however I am just using v6.3 from 2016-12-22
whereas PR71210 has been fixed for v6.2 on 2016-05-20.

== C-Program ==

extern char cards[];

void fun (void)
{
    __asm volatile ("" : "+r" (cards));
}


$ avr-gcc ice-inv.c -S  -v

Target: avr
Configured with: ../../gcc.gnu.org/gcc-6-branch/configure --target=avr
--prefix=/local/gnu/install/gcc-6-avr-mingw32 --host=i386-mingw32
--build=x86_64-linux-gnu --enable-languages=c,c++ --disable-nls
--disable-shared --enable-lto --with-dwarf2 --with-gnu-ld --with-gnu-as
Thread model: single
gcc version 6.3.1 20161222 [gcc-6-branch revision 243886] (GCC) 
GNU C11 (GCC) version 6.3.1 20161222 [gcc-6-branch revision 243886] (avr)
        compiled by GNU C version 3.4.5 (mingw-vista special r2), GMP version
4.3.2, MPFR version 2.4.2, MPC version 0.8.1, isl version none

ice-inv.c: In function 'fun':
ice-inv.c:5:5: internal compiler error: in assign_temp, at function.c:961
     __asm volatile ("" : "+r" (cards));
     ^~~~~

ice-inv.c:5:5: internal compiler error: Segmentation fault