Fix avx2 incorrect representations of shifts

[Richard Henderson <rth at redhat dot com>]

On 10/05/2011 12:07 PM, Uros Bizjak wrote:
> We already have V2TImode, but hidden in VIMAX_AVX2 mode iterator.
> Based on that, I would suggest that we model correct insn
> functionality and try to avoid unspec. On the related note, there is
> no move insn for V2TImode, so V2TI should be added to V16 mode
> iterator and a couple of other places (please grep for V1TImode, used
> for SSE full-register shift insns only).

Ah, so we do.  And, interestingly, we already had a pattern for
the shifts using that VIMAX_AVX2 iterator.  At the same time I
found that palignr was using the wrong mode, so I fixed that too.

Tested --with-cpu=core-avx2 on the intel sde.  Committed.


r~

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