llvm-project

History

Shilei Tian f2400f024d [OpenMP] Fixed the issue that target memory deallocation might be called when they're being used This patch fixed the issue that target memory might be deallocated when they're still being used or before they're used. Reviewed By: ye-luo Differential Revision: https://reviews.llvm.org/D84996		2020-07-31 18:54:18 -04:00
..
cmake/Modules	[Openmp][VE] Libomptarget plugin for NEC SX-Aurora	2020-05-12 10:47:30 +02:00
deviceRTLs	[OpenMP] Silence unused symbol warning with proper ifdefs	2020-07-11 11:57:42 -05:00
include	[OpenMP] Implement TR8 `present` map type modifier in runtime (2/2)	2020-07-22 14:04:58 -04:00
plugins	[OpenMP] Use primary context in CUDA plugin	2020-07-07 10:14:51 -04:00
src	[OpenMP] Fixed the issue that target memory deallocation might be called when they're being used	2020-07-31 18:54:18 -04:00
test	[OPENMP]Fix PR46824: Global declare target pointer cannot be accessed in target region.	2020-07-30 11:18:33 -04:00
CMakeLists.txt	[OpenMP] build offload plugins before testing them	2019-11-28 17:43:56 -05:00
README.txt	Unify build documentation and convert to reStructuredText	2017-12-27 09:15:10 +00:00

README.txt

    README for the LLVM* OpenMP* Offloading Runtime Library (libomptarget)
    ======================================================================

How to Build the LLVM* OpenMP* Offloading Runtime Library (libomptarget)
========================================================================
In-tree build:

$ cd where-you-want-to-live
Check out openmp (libomptarget lives under ./libomptarget) into llvm/projects
$ cd where-you-want-to-build
$ mkdir build && cd build
$ cmake path/to/llvm -DCMAKE_C_COMPILER=<C compiler> -DCMAKE_CXX_COMPILER=<C++ compiler>
$ make omptarget

Out-of-tree build:

$ cd where-you-want-to-live
Check out openmp (libomptarget lives under ./libomptarget)
$ cd where-you-want-to-live/openmp/libomptarget
$ mkdir build && cd build
$ cmake path/to/openmp -DCMAKE_C_COMPILER=<C compiler> -DCMAKE_CXX_COMPILER=<C++ compiler>
$ make

For details about building, please look at README.rst in the parent directory.

Architectures Supported
=======================
The current library has been only tested in Linux operating system and the
following host architectures:
* Intel(R) 64 architecture
* IBM(R) Power architecture (big endian)
* IBM(R) Power architecture (little endian)
* ARM(R) AArch64 architecture (little endian)

The currently supported offloading device architectures are:
* Intel(R) 64 architecture (generic 64-bit plugin - mostly for testing purposes)
* IBM(R) Power architecture (big endian) (generic 64-bit plugin - mostly for testing purposes)
* IBM(R) Power architecture (little endian) (generic 64-bit plugin - mostly for testing purposes)
* ARM(R) AArch64 architecture (little endian) (generic 64-bit plugin - mostly for testing purposes)
* CUDA(R) enabled 64-bit NVIDIA(R) GPU architectures

Supported RTL Build Configurations
==================================
Supported Architectures: Intel(R) 64, IBM(R) Power 7 and Power 8

              ---------------------------
              |   gcc      |   clang    |
--------------|------------|------------|
| Linux* OS   |  Yes(1)    |  Yes(2)    |
-----------------------------------------

(1) gcc version 4.8.2 or later is supported.
(2) clang version 3.7 or later is supported.


Front-end Compilers that work with this RTL
===========================================

The following compilers are known to do compatible code generation for
this RTL:
  - clang (from https://github.com/clang-ykt )
  - clang (development branch at http://clang.llvm.org - several features still
    under development)

-----------------------------------------------------------------------

Notices
=======
This library and related compiler support is still under development, so the
employed interface is likely to change in the future.

*Other names and brands may be claimed as the property of others.