[Bug c++/122185] [16 Regression] ICE: in propagate_necessity, at tree-ssa-dce.cc:1148 since r16-610-g3ecca8f3ad7e7f

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

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=122185

--- Comment #22 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
```
0>>> COPY ret_2(D) = _13
Optimizing statement j ={v} {CLOBBER(eos)};
Optimizing statement return ret_2(D);
  Replaced 'ret_2(D)' with variable '_13'
```
Which dom does because of:
```
  if (ret_2(D) != _13)
    goto <bb 6>; [70.00%]
  else
    goto <bb 39>; [30.00%]
```