llvm-project

History

Jonas Hahnfeld a7c4f3202b [libomptarget] Split implementation of interface functions This last of four patches adds a new file for the interface functions that Clang uses during code generation. The only change except simply moving the current code is renaming the function CheckDeviceAndCtors() and using the correct type for 64bit device ids. Differential Revision: https://reviews.llvm.org/D40801 llvm-svn: 319972		2017-12-06 21:59:15 +00:00
..
cmake/Modules	[CMake] Refactor common settings and flags	2017-11-29 19:31:48 +00:00
include	[libomptarget] Move header files and CMake library definition	2017-12-06 21:59:04 +00:00
plugins	[CMake] Refactor common settings and flags	2017-11-29 19:31:48 +00:00
src	[libomptarget] Split implementation of interface functions	2017-12-06 21:59:15 +00:00
test	[CMake] Detect information about test compiler	2017-11-30 17:08:31 +00:00
Build_With_CMake.txt	[CMake] Refactor testing infrastructure	2017-11-29 19:31:52 +00:00
CMakeLists.txt	[libomptarget] Move header files and CMake library definition	2017-12-06 21:59:04 +00:00
README.txt	Add AArch64 support.	2017-03-06 21:00:07 +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 Build_With_CMake.txt

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.