https://gcc.gnu.org/bugzilla/show_bug.cgi?id=91043
Richard Biener <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|WAITING |RESOLVED
Resolution|--- |INVALID
--- Comment #10 from Richard Biener <rguenth at gcc dot gnu.org> ---
I can reproduce the aligned stores with -O3 -march=core-avx2 with GCC 7/8/9.
note that when I check alignof(CCPortLatency) I do get 64 byte alignment
because it has a private member of type CTimeHistogram which has a member
uint64_t m_hcnt[HISTOGRAM_SIZE_LOG][HISTOGRAM_SIZE]
__attribute__((__aligned__(64))) ;
This kind of overaligned type doesn't play well with "old" C++ new but
you need support for overaligned types which is only in newer C++ standards
or resort to posix_memalign or friends to allocate memory.
Or simply drop the aligned attribute from above.
