Commit Graph

28 Commits

Author SHA1 Message Date
Vyacheslav Zakharin f2f88f3e7a An attempt to abandon omptarget out-of-tree builds.
I want to start using LLVM component libraries in libomptarget
to stop duplicating implementations already available in LLVM
(e.g. LLVMObject, LLVMSupport, etc.). Without relying on LLVM
in all libomptarget builds one has to provide fallback implementation
for each used LLVM feature.

This is an attempt to stop supporting out-of-llvm-tree builds of libomptarget.

I understand that I may need to revert this,
if this affects downstream projects in a bad way.

Differential Revision: https://reviews.llvm.org/D101509
2021-05-07 12:43:50 -07:00
Shilei Tian c571b16834 [OpenMP] Disabled profiling in `libomp` by default to unblock link errors
Link error occurred when time profiling in libomp is enabled by default
because `libomp` is assumed to be a C library but the dependence on
`libLLVMSupport` for profiling is a C++ library. Currently the issue blocks all
OpenMP tests in Phabricator.

This patch set a new CMake option `OPENMP_ENABLE_LIBOMP_PROFILING` to
enable/disable the feature. By default it is disabled. Note that once time
profiling is enabled for `libomp`, it becomes a C++ library.

Reviewed By: jdoerfert

Differential Revision: https://reviews.llvm.org/D95585
2021-01-28 07:24:32 -05:00
Giorgis Georgakoudis bb40e67318 [OpenMP] Fix building using LLVM_ENABLE_RUNTIMES
Fix when time profiling is enabled.

Related to: D94855

Reviewed By: JonChesterfield

Differential Revision: https://reviews.llvm.org/D95398
2021-01-27 06:43:57 -08:00
Shilei Tian 01f1273fe2 [OpenMP] Fixed a typo in openmp/CMakeLists.txt 2021-01-12 17:00:49 -05:00
Shilei Tian bdd1ad5e5c [OpenMP] Fixed include directories for OpenMP when building OpenMP with LLVM_ENABLE_RUNTIMES
Some LLVM headers are generated by CMake. Before the installation,
LLVM's headers are distributed everywhere, some of which are in
`${LLVM_SRC_ROOT}/llvm/include/llvm`, and some are in
`${LLVM_BINARY_ROOT}/include/llvm`. After intallation, they're all in
`${LLVM_INSTALLATION_ROOT}/include/llvm`.

OpenMP now depends on LLVM headers. Some headers depend on headers generated
by CMake. When building OpenMP along with LLVM, a.k.a via `LLVM_ENABLE_RUNTIMES`,
we need to tell OpenMP where it can find those headers, especially those still
have not been copied/installed.

Reviewed By: jdoerfert, jhuber6

Differential Revision: https://reviews.llvm.org/D94534
2021-01-12 14:32:38 -05:00
Giorgis Georgakoudis e007b32864 [OpenMP] Add time profiling for libomptarget
Reviewed By: jdoerfert

Differential Revision: https://reviews.llvm.org/D93055
2020-12-11 18:53:37 -08:00
Jon Chesterfield 26790ed248 [libomptarget] Require LLVM source tree to build libomptarget
[libomptarget] Require LLVM source tree to build libomptarget

This is to permit reliably #including files from the LLVM tree in libomptarget,
as an improvement on the copy and paste that is currently in use. See D87841
for the first example of removing duplication given this new requirement.

The weekly openmp dev call reached consensus on this approach. See also D87841
for some alternatives that were considered. In the future, we may want to
introduce a new top level repo for shared constants, or start using the ADT
library within openmp.

This will break sufficiently exotic build systems, trivial fixes as below.

Building libomptarget as part of the monorepo will continue to work.
If openmp is built separately, it now requires a cmake macro indicating
where to find the LLVM source tree.

If openmp is built separately, without the llvm source tree already on disk,
the build machine will need a copy of a subset of the llvm source tree and
the cmake macro indicating where it is.

Reviewed By: protze.joachim

Differential Revision: https://reviews.llvm.org/D89426
2020-10-21 18:53:00 +01:00
Joseph Huber 1c4c21489f [OpenMP] Initial Support for OpenMP Webpage Documentation
Summary:
Adding support for generated html documentation for OpenMP. Changing
Cmake files to build the documentation and adding the base templates for
future documentation to be added.

Reviewers: jdoerfert

Subscribers: aaron.ballman arphaman guansong mgorny openmp-commits sstefan1 yaxunl

Tags: #OpenMP

Differential Revision: https://reviews.llvm.org/D87797
2020-09-18 16:32:22 -04:00
Louis Dionne afa1afd410 [CMake] Bump CMake minimum version to 3.13.4
This upgrade should be friction-less because we've already been ensuring
that CMake >= 3.13.4 is used.

This is part of the effort discussed on llvm-dev here:

  http://lists.llvm.org/pipermail/llvm-dev/2020-April/140578.html

Differential Revision: https://reviews.llvm.org/D78648
2020-07-22 14:25:07 -04:00
Kazuaki Ishizaki 4201679110 [OpenMP] NFC: Fix trivial typo
Differential Revision: https://reviews.llvm.org/D77430
2020-04-04 12:06:54 +09:00
Johannes Doerfert 3ff4e2eee8 [OpenMP] Switch default C++ standard to C++ 14
Reviewed By: JonChesterfield

Differential Revision: https://reviews.llvm.org/D74258
2020-02-11 17:11:54 -06:00
Kelvin Li ed5fe64581 [OpenMP] NFC: Fix trivial typos in comments
Submitted by: kiszk

Differential Revision: https://reviews.llvm.org/D72171
2020-01-03 22:03:42 -05:00
protze@itc.rwth-aachen.de 2b8115b10b [OpenMP] Add implementation and tests of Archer tool
The tool provides TSAN annotations for OpenMP synchronization. The tool
is activated if no other OMPT tool is loaded.

The tool detects whether the application was built with TSan and rejects
activation according to the OMPT protocol if there is no TSan-rt.

Differential Revision: https://reviews.llvm.org/D45890
2019-11-18 14:45:34 +01:00
Jonas Hahnfeld 65e0b8784c [CMake] Unify install path for libraries
Introduce OPENMP_INSTALL_LIBDIR and use in all install() commands.
This also fixes installation of libomptarget-nvptx that previously
didn't honor {OPENMP,LLVM}_LIBDIR_SUFFIX.

Differential Revision: https://reviews.llvm.org/D47130

llvm-svn: 333284
2018-05-25 15:56:41 +00:00
Jonas Hahnfeld 2e809acd0b Unify build documentation and convert to reStructuredText
We now have several options that apply for both libraries and they
shouldn't be documented in multiple files. When already merging
the two Build_With_CMake.txt documents, convert them to
reStructuredText which is used for all of LLVM's documentation.

Differential Revision: https://reviews.llvm.org/D40920

llvm-svn: 321481
2017-12-27 09:15:10 +00:00
Jonas Hahnfeld fc473dee98 [CMake] Detect information about test compiler
Perform a nested CMake invocation to avoid writing our own parser
for compiler versions when we are not testing the in-tree compiler.
Use the extracted information to mark a test as unsupported that
hangs with Clang prior to version 4.0.1 and restrict tests for
libomptarget to Clang version 6.0.0 and later.

Differential Revision: https://reviews.llvm.org/D40083

llvm-svn: 319448
2017-11-30 17:08:31 +00:00
Jonas Hahnfeld 18bec60bc2 [CMake] Refactor testing infrastructure
The code for the two OpenMP runtime libraries was very similar.
Move to common CMake file that is included and provides a simple
interface for adding testsuites. Also add a common check-openmp
target that runs all testsuites that have been registered.

Note that this renames all test options to the common OPENMP
namespace, for example OPENMP_TEST_C_COMPILER instead of
LIBOMP_TEST_COMPILER and so on.

Differential Revision: https://reviews.llvm.org/D40082

llvm-svn: 319343
2017-11-29 19:31:52 +00:00
Jonas Hahnfeld 5af381acad [CMake] Refactor common settings and flags
These are needed by both libraries, so we can do that in a
common namespace and unify configuration parameters.
Also make sure that the user isn't requesting libomptarget
if the library cannot be built on the system. Issue an error
in that case.

Differential Revision: https://reviews.llvm.org/D40081

llvm-svn: 319342
2017-11-29 19:31:48 +00:00
Jonas Hahnfeld 3e921d3c52 [CMake] Disallow direct configuration
As a first step, this allows us to generalize the detection of
standalone builds and make it fully compatible when building in
llvm/runtimes/ which automatically sets OPENMP_STANDLONE_BUILD.

Differential Revision: https://reviews.llvm.org/D40080

llvm-svn: 319341
2017-11-29 19:31:43 +00:00
Jonas Hahnfeld 318dd729cc [CMake] Re-enable libomptarget and restrict tests to Clang 6.0.0
We have just fixed the codegen of omp_is_initial_device() to reliably work
when offloading to the same device, see commit r316001. This fixes the
failing tests that were the reason why we disabled the library for 5.0.

Differential Revision: https://reviews.llvm.org/D39052

llvm-svn: 318847
2017-11-22 17:15:18 +00:00
Jonas Hahnfeld 203c730719 [CMake] Disable building libomptarget and add CMake switch
Introduce OPENMP_ENABLE_LIBOMPTARGET which defaults to OFF at the moment.

libomptarget is not yet ready for prime time:
 - Offloading to NVIDIA GPUs is not completed yet (compiler, device RTL)
 - The generic ELF plugin for offloading to the host (meant for testing)
   uses a single instance of the OpenMP runtime (libomp). That is why
   omp_is_initial_device() returns 1 which makes the tests fail.
Because of these reasons, we want to disable building (and testing!)
for release 5.0.

See https://bugs.llvm.org/show_bug.cgi?id=33859

Differential Revision: https://reviews.llvm.org/D35719

llvm-svn: 309115
2017-07-26 13:55:00 +00:00
George Rokos 00749e0fd4 [OpenMP] libomptarget: Disable on MacOS X
Disable compilation of libomptarget on MacOS X.

Differential Revision: https://reviews.llvm.org/D31055

llvm-svn: 298411
2017-03-21 18:19:09 +00:00
Hans Wennborg 1155ad1bc8 libomptarget: Disable on Win32
It's not supported, and currently breaks the weekly LLVM snapshot
builds.

Differential Revision: https://reviews.llvm.org/D29801

llvm-svn: 294758
2017-02-10 17:13:28 +00:00
George Rokos 2467df6e4f [OpenMP] Initial implementation of OpenMP offloading library - libomptarget.
This is the patch upstreaming the device-agnostic part of libomptarget.

Differential Revision: https://reviews.llvm.org/D14031

llvm-svn: 293094
2017-01-25 21:27:24 +00:00
Oren Ben Simhon c11addb506 Reverting last change.
llvm-svn: 290245
2016-12-21 09:04:08 +00:00
Oren Ben Simhon 016f2af3c7 [X86] Vectorcall Calling Convention - Adding CodeGen Complete Support
Fixing build issues.

llvm-svn: 290242
2016-12-21 08:58:19 +00:00
Jonas Hahnfeld 66594990b1 [CMake] Introduce OPENMP_LLVM_TOOLS_DIR
This will be used in a later patch to find additional LLVM tools for tests and
enables reusability for libomptarget that is currently under review.

Differential Revision: http://reviews.llvm.org/D16713

llvm-svn: 259876
2016-02-05 07:00:13 +00:00
Andrey Churbanov 648467ed05 Integrate libiomp CMake into LLVM CMake build system.
This patch integrates the libiomp CMake build system into the LLVM CMake build 
system so that users can checkout libiomp into the projects directory of llvm 
and build llvm,clang, and libiomp all together.  These changes specifically 
introduce a new install target which will put libraries and headers into the 
correct locations when either a standalone build or part of llvm.
The copy_recipe() method has been removed in favor of the POST_BUILD method 
to move headers into the exports subdirectory.  And lastly, the MicroTests.cmake 
file was refactored which led to simpler target dependencies and a new target, 
make libiomp-micro-tests, which performs the 5 small tests (test-relo, 
test-touch, etc.) when called.

llvm-svn: 236534
2015-05-05 20:02:52 +00:00