Simon Moll cf964eb5bd [VE] v512i1 mask arithmetic isel ...

Packed vector and mask registers (v512) are composed of two v256
subregisters that occupy the even and odd element positions.  We add
packing support SDNodes (vec_unpack_lo|hi and vec_pack) and splitting of
v512i1 mask arithmetic ops with those.

Reviewed By: kaz7

Differential Revision: https://reviews.llvm.org/D120053

2022-02-21 10:38:11 +01:00

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