[Bug tree-optimization/106781] [13 Regression] ICE: verify_flow_info failed (error: returns_twice call is not first in basic block 2) since r13-1754-g7a158a5776f5ca95

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

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=106781

--- Comment #4 from Alexander Monakov <amonakov at gcc dot gnu.org> ---
(In reply to Martin Liška from comment #3)
> > Also ICEs in ipa-modref when 'noclone' added to 'noinline', a 12/13
> > regression (different cause, needs a separate PR).
> 
> Can't reproduce Alexander, please attach a testcase.

Ah, it ICEs when emitting a dump, so -fdump-tree-modref2 is needed in addition
to -O2, I've filed that as PR 106783.