[Bug target/104704] [12 Regression] ix86_gen_scratch_sse_rtx doesn't work with explicit XMM7/XMM15/XMM31 usage

[crazylht at gmail dot com via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=104704

--- Comment #3 from Hongtao.liu <crazylht at gmail dot com> ---
(In reply to H.J. Lu from comment #1)
> ix86_expand_vector_move shouldn't use ix86_gen_scratch_sse_rtx.

Is it problematic for TARGET_GEN_MEMSET_SCRATCH_RTX?