[PATCH] x86: don't allow invalid operand combinations for VGATHER

[H.J. Lu]

On Tue, Jul 24, 2012 at 7:18 AM, Jan Beulich <JBeulich@suse.com> wrote:
> The VGATHER group of instructions requires that all three involved
> xmm/ymm registers are distinct. This patch adds code to check for this,
> and at once eliminates a superfluous check for not using PC-relative
> addressing for these instructions (the fact that an index register is
> required here already excludes valid PC-relative addresses).
>

The assembler should only check the operands which can't be
encoded.  It should shouldn't check if operands are functional
correct.  However, I don't mind to issue an error which is controlled
by a command line option.

Thanks.

-- 
H.J.