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4 Commits

Author SHA1 Message Date
Matt Arsenault 0ba40d4ccf AMDGPU/GlobalISel: Combines for V_CVT_F32_UBYTE[0-3] 
Ports the existing DAG combines, minus the simplify demanded bits
which seems to have no equivalent now. Without these, this isn't
particularly helpful in most of the IR sample cases.
 2020-04-13 19:18:19 -04:00
Matt Arsenault b27d255e1e AMDGPU/GlobalISel: Form CVT_F32_UBYTE0 2020-03-30 17:45:55 -04:00
Matt Arsenault d15723ef06 AMDGPU/GlobalISel: Remove redundant virtual 2020-03-29 14:03:07 -04:00
Matt Arsenault fee41517fe AMDGPU/GlobalISel: Introduce post-legalize combiner 
The current set of custom combines are only really useful after
legalization, so move them there. There is a lot of overlap in the
boilerplate here, but I think we do want a pretty different set of
combines before and after legalize. I think we will want a lot of
overlap between the post-legalize and a post-regbankselect combiner.
 2020-02-24 22:12:12 -05:00