[Openmp-commits] [PATCH] D59319: [OpenMP][Offloading][1/3] A generic and simple target region interface

[Johannes Doerfert via Phabricator via Openmp-commits]

jdoerfert created this revision.
jdoerfert added reviewers: ABataev, arpith-jacob, guraypp, gtbercea, hfinkel.
Herald added a project: OpenMP.

This patch introduces an alternative OpenMP GPU kernel offloading
interface called target kernel region (or TRegion).

The commit includes the runtime library implementation for the NVPTX
device plugin, implemented mostly in terms of the existing
functionality.

The interface is deliberately simple to be easily analyzable in the
middle end. Design decisions included:

- Hide all (complex) implementation choices in the runtime library but allow complete removal of the abstraction once the runtime is inlined.
- Provide all runtime calls with sufficient, easy encoded information.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D59319

Files:
  openmp/libomptarget/cmake/Modules/LibomptargetNVPTXBitcodeLibrary.cmake
  openmp/libomptarget/deviceRTLs/common/target_region.h
  openmp/libomptarget/deviceRTLs/nvptx/CMakeLists.txt
  openmp/libomptarget/deviceRTLs/nvptx/src/omp_data.cu
  openmp/libomptarget/deviceRTLs/nvptx/src/omptarget-nvptx.h
  openmp/libomptarget/deviceRTLs/nvptx/src/target_region.cu

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