[PATCH] x86: drop stray NoRex64 from KeyLocker insns
H.J. Lu
hjl.tools@gmail.com
Thu Jul 28 15:24:25 GMT 2022
On Thu, Jul 28, 2022 at 4:34 AM Jan Beulich <jbeulich@suse.com> wrote:
>
> It's entirely unclear why some of the KeyLocker insns had NoRex64 on
> them - there's nothing here which could cause emission of REX.W (except
> of course a user-specified "rex.w", which we ought to honor anyway).
>
> --- a/opcodes/i386-opc.tbl
> +++ b/opcodes/i386-opc.tbl
> @@ -3493,9 +3493,9 @@ tilezero, 0xf249, None, CpuAMX_TILE|Cpu6
>
> // KEYLOCKER instructions.
>
> -loadiwkey, 0xf30f38dc, None, CpuKL, Load|Modrm|No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf|NoRex64, { RegXMM, RegXMM }
> -encodekey128, 0xf30f38fa, None, CpuKL, Modrm|No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf|NoRex64, { Reg32, Reg32 }
> -encodekey256, 0xf30f38fb, None, CpuKL, Modrm|No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf|NoRex64, { Reg32, Reg32 }
> +loadiwkey, 0xf30f38dc, None, CpuKL, Load|Modrm|No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf, { RegXMM, RegXMM }
> +encodekey128, 0xf30f38fa, None, CpuKL, Modrm|No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf, { Reg32, Reg32 }
> +encodekey256, 0xf30f38fb, None, CpuKL, Modrm|No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf, { Reg32, Reg32 }
> aesenc128kl, 0xf30f38dc, None, CpuKL, Modrm|No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf, { Unspecified|BaseIndex, RegXMM }
> aesdec128kl, 0xf30f38dd, None, CpuKL, Modrm|No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf, { Unspecified|BaseIndex, RegXMM }
> aesenc256kl, 0xf30f38de, None, CpuKL, Modrm|No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf, { Unspecified|BaseIndex, RegXMM }
OK.
Thanks.
--
H.J.
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