[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 #13 from Hongtao.liu <crazylht at gmail dot com> ---
(In reply to H.J. Lu from comment #10)
> Created attachment 52553 [details]
> A patch to always return pseudo register in ix86_gen_scratch_sse_rtx

Please go ahead with this patch, i'll submit an incremental patch for #12