https://gcc.gnu.org/bugzilla/show_bug.cgi?id=105946
Bug ID: 105946
Summary: [12/13 Regression] ICE in
maybe_warn_pass_by_reference, at
tree-ssa-uninit.cc:843
Product: gcc
Version: 13.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c++
Assignee: unassigned at gcc dot gnu.org
Reporter: gs...@t-online.de
Target Milestone: ---
Started between 20210627 and 20210704,
with g++.dg/pr100253.C or g++.dg/tree-ssa/pr46228.C :
$ gcc-13-20220612 -c pr100253.C -O2 -fdisable-ipa-inline -W
cc1plus: note: disable pass ipa-inline for functions in the range of [0,
4294967295]
during GIMPLE pass: uninit
In file included from .../gcc-13-20220612/include/c++/13.0.0/vector:64,
from pr100253.C:4:
.../gcc-13-20220612/include/c++/13.0.0/bits/stl_vector.h: In function
'std::vector<_Tp, _Alloc>::pointer std::vector<_Tp,
_Alloc>::_M_allocate_and_copy(size_type, _ForwardIterator, _ForwardIterator)
[with _ForwardIterator = __gnu_cxx::__normal_iterator<const std::vector<T>*,
std::vector<std::vector<T> > >; _Tp = std::vector<T>; _Alloc =
std::allocator<std::vector<T> >]':
.../gcc-13-20220612/include/c++/13.0.0/bits/stl_vector.h:1611:9: internal
compiler error: Segmentation fault
1611 | _M_allocate_and_copy(size_type __n,
| ^~~~~~~~~~~~~~~~~~~~
0xdb3fff crash_signal
../../gcc/toplev.cc:322
0xfb5cd8 maybe_warn_pass_by_reference
../../gcc/tree-ssa-uninit.cc:843
0xfb5cd8 warn_uninitialized_vars
../../gcc/tree-ssa-uninit.cc:1050
0xfb637e execute_late_warn_uninitialized
../../gcc/tree-ssa-uninit.cc:1343
0xfb637e execute
../../gcc/tree-ssa-uninit.cc:1396
