Simon Pilgrim 07898901df [DAGCombiner] Add vector demanded elements support to computeKnownBitsForTargetNode
Follow up to D25691, this sets up the plumbing necessary to support vector demanded elements support in known bits calculations in target nodes.

Differential Revision: https://reviews.llvm.org/D31249

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@299201 91177308-0d34-0410-b5e6-96231b3b80d8
2017-03-31 11:24:16 +00:00
..

To-do
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* Instruction encodings
* Tailcalls
* Investigate loop alignment
* Add builtins