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Author SHA1 Message Date
Krzysztof Parzyszek d91a9e27a9 [Hexagon] Simplify CFG after atomic expansion 
This will remove suboptimal branching from the generated ll/sc loops.
The extra simplification pass affects a lot of testcases, which have
been modified to accommodate this change: either by modifying the
test to become immune to the CFG simplification, or (less preferablt)
by adding option -hexagon-initial-cfg-clenaup=0.

llvm-svn: 338774
 2018-08-02 22:17:53 +00:00
Krzysztof Parzyszek 88f11003a0 [Hexagon] Split HVX operations on vector pairs 
Vector pairs are legal types, but not every operation can work on pairs.
For those operations that are legal for single vectors, generate a concat
of their results on pair halves.

llvm-svn: 324350
 2018-02-06 14:24:57 +00:00