https://gcc.gnu.org/bugzilla/show_bug.cgi?id=90611
Richard Biener <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Target| |i?86-*-*
Status|UNCONFIRMED |NEW
Last reconfirmed| |2019-05-24
Component|c++ |libstdc++
Ever confirmed|0 |1
--- Comment #2 from Richard Biener <rguenth at gcc dot gnu.org> ---
Confirmed.
(gdb) p this
$2 = (std::vector<int4, std::allocator<int4> > * const) 0xffffcf24
(gdb) p *this
$3 = {<std::_Vector_base<int4, std::allocator<int4> >> = {
_M_impl = {<std::allocator<int4>> = {<__gnu_cxx::new_allocator<int4>> =
{<No data fields>}, <No data fields>}, _M_start = 0x804fa28, _M_finish = 0x0,
_M_end_of_storage = 0x804fa38}}, <No data fields>}
it looks like libstdc++ doesn't allocate aligned memory properly or
eventually malloc on 32bit doesn't return 16byte aligned memory.
