> -Original Message-
> From: Jan Beulich
> Sent: Friday, June 16, 2023 2:20 PM
> To: gcc-patches@gcc.gnu.org
> Cc: Liu, Hongtao ; Kirill Yukhin
>
> Subject: [PATCH v2] x86: correct and improve "*vec_dupv2di"
>
> The input constraint for the %v
The input constraint for the %vmovddup alternative was wrong, as the
upper 16 XMM registers require AVX512VL to be used with this insn. To
compensate, introduce a new alternative permitting all 32 registers, by
broadcasting to the full 512 bits in that case if AVX512VL is not
available.
gcc/
