gdb/record: add support to vinsert and vextract instructions

This patch adds support for the following instructions:
* VEXTRACT[F128|I128|PS]
* VINSERT[F128|I128|PS]
* VPEXTR[B|W|D|Q]

And associated test. For some reason, it seems that the extract
instructions deal with the output register as though it was the first
source register, so they use ModRM.r/m and VEX.B, instead of the usual
ModRM.reg and VEX.R. This meant that the opcode collision with
vbroadcastsd wasn't trivial. It can be easily solved by checking the
VEX.map_select field, so soslving it was very easy.

The VPEXTR instructions had several complicated collisions, and notably,
vpextrw to a register works completely different to any other
instruction in the family, so the code is messy, but it should be
correct.

0 files changed, 0 insertions, 0 deletions