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2 Commits

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 8cc636c592 [Hexagon] Only process bitcasts of vsplats when selecting const vectors 
Selecting of constant HVX vectors involves some "manual processing",
which mishandled an unrelated BITCAST operation causing a selection
error.

llvm-svn: 323887
 2018-01-31 16:48:20 +00:00