[Bug c++/85114] [6/7 Regression] -fstack-check causes ICE

[marxin at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=85114

Martin Liška  changed:

   What|Removed |Added

   Keywords|needs-reduction |

--- Comment #9 from Martin Liška  ---
Reduced test-case:

$ cat Unified_cpp_layout_generic1.ii 
class c {
  int *b;
};
class B {
  char d;
};
class e {
public:
  virtual B f();
  struct h {
e *g;
e *i;
void j() { l = g->f(); }
int k;
int n;
B l;
c m;
  };
  struct o : h {
bool p;
  };
};
class G : e {
  int q();
};
int G::q() {
  o a;
  for (;;)
a.j();
}

[Bug c++/85114] [6/7 Regression] -fstack-check causes ICE

[marxin at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=85114

Martin Liška  changed:

   What|Removed |Added

   Keywords||ice-on-valid-code
 Status|WAITING |NEW
  Known to work||8.2.0, 9.0
Summary|-fstack-check causes|[6/7 Regression]
   |internal compiler error |-fstack-check causes ICE
  Known to fail||6.4.0, 7.3.0

--- Comment #8 from Martin Liška  ---
(In reply to Eric Botcazou from comment #7)
> > Btw. works fine on Linux.
> 
> Maybe with -fstack-check=generic?

Yes, that causes ICE also on Linux. Fixed on trunk since r251650. I'll try to
come up with a reduced test-case.