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* [Hexagon] Simplify CFG after atomic expansionKrzysztof Parzyszek2018-08-021-6/+6
| | | | | | | | | | 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
* [Hexagon] Run late copy propagation and dead code elimination passesKrzysztof Parzyszek2018-01-241-4/+4
| | | | llvm-svn: 323346
* [Hexagon] Even simpler patterns for sign- and zero-extending HVX vectorsKrzysztof Parzyszek2018-01-051-2/+2
| | | | | | Recommit r321897 with updated testcases. llvm-svn: 321908
* [Hexagon] Generate HVX code for vector sign-, zero- and any-extendsKrzysztof Parzyszek2017-12-181-0/+30
Implement any-extend as zero-extend. llvm-svn: 321004
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