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3 Commits

Author SHA1 Message Date
Matt Arsenault 3cd3959fe2 GlobalISel: Implement fewerElementsVector for G_BUILD_VECTOR 
Turn it into a G_CONCAT_VECTORS of G_BUILD_VECTOR.

llvm-svn: 374252
 2019-10-09 22:44:43 +00:00
Matt Arsenault 578fa2819f AMDGPU/GlobalISel: Widen 16-bit G_MERGE_VALUEs sources 
Continue making a mess of merge/unmerge legality.

llvm-svn: 373942
 2019-10-07 19:05:58 +00:00
Matt Arsenault c0ceca5883 AMDGPU/GlobalISel: First pass at attempting to legalize load/stores 
There's still a lot more to do, but this handles decomposing due to
alignment. I've gotten it to the point where nothing crashes or
infinite loops the legalizer.

llvm-svn: 371533
 2019-09-10 16:20:14 +00:00