[PATCH 1/6] Enable Intel AVX512_VBMI2 instructions

[Jan Beulich]

>>> On 21.10.17 at 11:15, <igor.v.tsimbalist@intel.com> wrote:
> Resending the patch after regenerated files removal  (mailer-daemon
> complained about the size of the patch).

What's the point of the Vec_Disp8 ...

>+vpcompressb, 2, 0x6663, None, 1, CpuAVX512_VBMI2, Modrm|EVex=1|Masking=2|VexOpcode=1|VexW=1|IgnoreSize|No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf, { RegZMM, ZMMword|Unspecified|BaseIndex|Disp8|Disp16|Disp32|Disp32S|Vec_Disp8 }
>+vpcompressb, 2, 0x6663, None, 1, CpuAVX512_VBMI2|CpuAVX512VL, Modrm|EVex=2|Masking=2|VexOpcode=1|VexW=1|IgnoreSize|No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf, { RegXMM, XMMword|Unspecified|BaseIndex|Disp8|Disp16|Disp32|Disp32S|Vec_Disp8 }
>+vpcompressb, 2, 0x6663, None, 1, CpuAVX512_VBMI2|CpuAVX512VL, Modrm|EVex=3|Masking=2|VexOpcode=1|VexW=1|IgnoreSize|No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf, { RegYMM, YMMword|Unspecified|BaseIndex|Disp8|Disp16|Disp32|Disp32S|Vec_Disp8 }

... here and ...

>+vpexpandb, 2, 0x6662, None, 1, CpuAVX512_VBMI2, Modrm|EVex=1|Masking=3|VexOpcode=1|VexW=1|IgnoreSize|No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf, { RegZMM|ZMMword|Unspecified|BaseIndex|Disp8|Disp16|Disp32|Disp32S|Vec_Disp8, RegZMM }
>+vpexpandb, 2, 0x6662, None, 1, CpuAVX512_VBMI2|CpuAVX512VL, Modrm|EVex=2|Masking=3|VexOpcode=1|VexW=1|IgnoreSize|No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf, { RegXMM|XMMword|Unspecified|BaseIndex|Disp8|Disp16|Disp32|Disp32S|Vec_Disp8, RegXMM }
>+vpexpandb, 2, 0x6662, None, 1, CpuAVX512_VBMI2|CpuAVX512VL, Modrm|EVex=3|Masking=3|VexOpcode=1|VexW=1|IgnoreSize|No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf, { RegYMM|YMMword|Unspecified|BaseIndex|Disp8|Disp16|Disp32|Disp32S|Vec_Disp8, RegYMM }

? There's no Disp8 scaling here. Vec_Disp8 really is mostly (and
perhaps entirely, i.e. I'm in the process of determining whether we
can get rid of it) redundant with Disp8MemShift beng non-zero.

Also what was the point of inserting a stray blank line at the top
of opcodes/i386-opc.tbl?

Jan