[Bug inline-asm/85022] [6/7/8 Regression] internal compiler error: in write_dependence_p, at alias.c:3003

[jakub at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=85022

Jakub Jelinek <jakub at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |NEW
   Last reconfirmed|                            |2018-03-22
                 CC|                            |jakub at gcc dot gnu.org
   Target Milestone|---                         |6.5
            Summary|internal compiler error: in |[6/7/8 Regression] internal
                   |write_dependence_p, at      |compiler error: in
                   |alias.c:3003                |write_dependence_p, at
                   |                            |alias.c:3003
     Ever confirmed|0                           |1

--- Comment #2 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Started with r200241.
ICEs both in C and C++:

extern struct B b;

void
foo ()
{
  asm ("" : "+m" (b));
}

I'm surprised we accept it; works at -O0.