Refine the set of UniformAfterVectorization instructions.

Except the seed uniform instructions (conditional branch and consecutive ptr
instructions), dependencies to be added into uniform set should only be used
by existing uniform instructions or intructions outside of current loop.

Differential Revision: http://reviews.llvm.org/D21755


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@274262 91177308-0d34-0410-b5e6-96231b3b80d8
2 files changed