AVX-512: Implemented missing encoding and intrinsics for FMA instructions
Added tests for DAG lowering ,encoding and intrinsics

Differential Revision: http://reviews.llvm.org/D10796

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@240926 91177308-0d34-0410-b5e6-96231b3b80d8
9 files changed