llvm-project/openmp/libomptarget
Joachim Protze b845217b1d [OpenMP][libomptarget] Separate lit tests for different offloading targets (1/2)
This patch creates a separate test directory for each offloading target to be
tested. This allows to test multiple architectures in one configuration, while
still see all failing tests separately. The lit test names include the target
triple, so that it will be easier to spot the failing target.

This patch also allows to mark expected failing tests based on the
target-triple, as the currently used triple is added to the lit "features":
```
// XFAIL: nvptx64-nvidia-cuda
```

Differential Revision: https://reviews.llvm.org/D101315
2021-04-27 12:30:01 +02:00
..
cmake/Modules [OpenMP][NVPTX] Refined CMake logic to choose compute capabilites 2021-01-30 15:14:48 -05:00
deviceRTLs [libomptarget] Enable AMDGPU devicertl 2021-04-24 02:24:44 +01:00
include [OpenMP] Replace global InfoLevel with a reference to an internal one. 2021-04-23 09:43:46 -04:00
plugins [OpenMP] Replace global InfoLevel with a reference to an internal one. 2021-04-23 09:43:46 -04:00
src [OpenMP] Replace global InfoLevel with a reference to an internal one. 2021-04-23 09:43:46 -04:00
test [OpenMP][libomptarget] Separate lit tests for different offloading targets (1/2) 2021-04-27 12:30:01 +02:00
utils [OpenMP] Simplify offloading parallel call codegen 2021-04-21 18:46:07 -07:00
CMakeLists.txt [OpenMP][Libomptarget] Fix check-libomptarget 2021-01-27 06:46:40 -08:00
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.