[OpenMP] Code generation for target data directive
Summary:
This patch adds support for the target data directive code generation.
Part of the already existent functionality related with data maps is moved to a new function so that it could be reused.
Reviewers: hfinkel, carlo.bertolli, arpith-jacob, kkwli0, ABataev
Subscribers: cfe-commits, fraggamuffin, caomhin
Differential Revision: http://reviews.llvm.org/D17367
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@267811
91177308-0d34-0410-b5e6-
96231b3b80d8