[PowerPC]Activate FeatureVSX for the Power target

This change activates FeatureVSX for Power 7 and Power 8 in PPC.td.

http://reviews.llvm.org/D6570


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@223709 91177308-0d34-0410-b5e6-96231b3b80d8
[Hexagon] Adding any8, all8, and/or/xor/andn/orn/not predicate register forms, mask, and vitpack instructions and patterns.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@223710 91177308-0d34-0410-b5e6-96231b3b80d8
MISched: Fix moving stores across barriers

This fixes an issue with ScheduleDAGInstrs::buildSchedGraph
where stores without an underlying object would not be added
as a predecessor to the current BarrierChain.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@223717 91177308-0d34-0410-b5e6-96231b3b80d8
[Hexagon] Removing old def versions and replacing usages with versions that have encodings.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@223720 91177308-0d34-0410-b5e6-96231b3b80d8