[Bug target/68263] Vector "*mov<mode>_internal" fails to handle misaligned load/store from reload

[ubizjak at gmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=68263

--- Comment #1 from Uroš Bizjak <ubizjak at gmail dot com> ---
(In reply to H.J. Lu from comment #0)

> Misaligned load/store are only handled for AVX, not SSE.

This is because only AVX supports instructions with unaligned memory operands,
and we have to provide a way to move these unaligned operands to a register.
SSE doesn't support this functionality, so there is no need for generic
unaligned SSE loads.