"H.J. Lu" <hjl.to...@gmail.com> writes:
>
> i386.c has
>
> {
> /* When not optimize for size, enable vzeroupper optimization for
> TARGET_AVX with -fexpensive-optimizations and split 32-byte
> AVX unaligned load/store. */
This is only for the load, not for deciding whether peeling is
worthwhile or not.
I believe it's unimplemented for x86 at this point. There isn't even a
hook for it. Any hook that is added should ideally work for both ARM64
and x86. This would imply it would need to handle different vector
sizes.
-Andi
--
a...@linux.intel.com -- Speaking for myself only
