[PATCH] D63108: [OpenMP] Add support for handling declare target to clause when unified memory is required

[Gheorghe-Teodor Bercea via Phabricator via cfe-commits]

gtbercea created this revision.
gtbercea added reviewers: ABataev, AlexEichenberger, caomhin.
Herald added subscribers: cfe-commits, jdoerfert, guansong.
Herald added a project: clang.

This patch adds support for the handling of the variables under the declare target to clause.

The variables in this case are handled like link variables are. A pointer is created on the host and then mapped to the device. The runtime will then copy the address of the host variable in the device pointer.


Repository:
  rC Clang

https://reviews.llvm.org/D63108

Files:
  lib/CodeGen/CGDeclCXX.cpp
  lib/CodeGen/CGExpr.cpp
  lib/CodeGen/CGOpenMPRuntime.cpp
  lib/CodeGen/CGOpenMPRuntime.h
  lib/CodeGen/CodeGenModule.cpp
  test/OpenMP/nvptx_target_requires_unified_shared_memory.cpp

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