https://gcc.gnu.org/bugzilla/show_bug.cgi?id=106199
Andrew Pinski <pinskia at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Component|middle-end |tree-optimization
Summary|vector::insert optimization |incorrect memcpy writing 1
|is broken with gcc-12 |or more bytes into a region
| |of size 0 overflows the
| |destination with
| |std::vector::insert .
--- Comment #4 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
/opt/compiler-explorer/gcc-trunk-20220705/include/c++/13.0.0/bits/stl_algobase.h:431:30:
error: 'void* __builtin_memcpy(void*, const void*, long unsigned int)' writing
1 or more bytes into a region of size 0 overflows the destination
[-Werror=stringop-overflow=]
