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3 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 cf3ad5841b [Hexagon] Run late copy propagation and dead code elimination passes 
llvm-svn: 323346
 2018-01-24 17:48:11 +00:00
Krzysztof Parzyszek 9b7c1d2dcf [Hexagon] Properly update kill flags in HexagonNewValueJump 
The feeder instruction will be moved to right before the compare, so
the updating code should not be looking for kills past the compare.

llvm-svn: 306059
 2017-06-22 21:11:44 +00:00