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2xv4i16
2020 Jan 03
2
Legalizing vector types
...has support for v4i16 vectors, and no
support for v4i8 / v8i8 / v8i16
V4i8 is promoted to v4i16 which is nice
V8i16 is split to 2 x v4i16 which is nice as well
Now v8i8 is scalarized, which is not so nice.
Ideally I would like v8i8 to be first promoted to v8i16 then split to
2xv4i16 (or split to 2xV4i8 then promoted to 2xv4i16)
Is there a way to achieve that? I tried to figure out how to do it, but
the only way I found is to make v8i16 legal, and handle the splitting to
2xv4i16 as patterns, which looks to me to be a lot of useless work
Thanks in advance.
Regards,
Sebastien
Sébastien Le...