[Bug middle-end/104522] ICE: in real_to_decimal_for_mode, at real.cc:1770 with -O -fcompare-debug

[pinskia at gcc dot gnu.org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=104522

Andrew Pinski <pinskia at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
   Last reconfirmed|                            |2022-02-13
     Ever confirmed|0                           |1
          Component|rtl-optimization            |middle-end
             Status|UNCONFIRMED                 |NEW

--- Comment #1 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
Here is a simplier testcase:
typedef short __attribute__((__vector_size__(16))) V;

_Float64x t1;

void
foo(void)
{
  V t={1024>>1, 0, 0, 0, 32768>>1};
  _Float64x tt = *(_Float64x*)&t;
  t1 /= tt;
}

This ICEs at -O1 -fdump-tree-all-details during forwprop1.