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9 Commits

Author SHA1 Message Date
Pushpinder Singh 3a12ff0dac [OpenMP][RTL] Remove dead code 
RequiresDataSharing was always 0, resulting dead code in device runtime library.

Reviewed By: jdoerfert, JonChesterfield

Differential Revision: https://reviews.llvm.org/D88829
 2020-10-06 05:43:47 -04:00
Saiyedul Islam a1bdf8f545 [OpenMP] Ensure testing for versions 4.5 and default - Part 2 
Many OpenMP Clang tests do not RUN for version 4.5 and the default
version. This second patch in the series handles test cases which
require updation in CHECK lines along with adding RUN lines for
the default version. It involves updating line number of pragmas.

Reviewed By: ABataev

Differential Revision: https://reviews.llvm.org/D85150
 2020-08-27 18:50:52 +00:00
Johannes Doerfert cd0ea03e6f [OpenMP][NFC] Remove unused and untested code from the device runtime 
Summary:
We carried a lot of unused and untested code in the device runtime.
Among other reasons, we are planning major rewrites for which reduced
size is going to help a lot.

The number of code lines reduced by 14%!

Before:
-------------------------------------------------------------------------------
Language                     files          blank        comment           code
-------------------------------------------------------------------------------
CUDA                            13            489            841           2454
C/C++ Header                    14            322            493           1377
C                               12            117            124            559
CMake                            4             64             64            262
C++                              1              6              6             39
-------------------------------------------------------------------------------
SUM:                            44            998           1528           4691
-------------------------------------------------------------------------------

After:
-------------------------------------------------------------------------------
Language                     files          blank        comment           code
-------------------------------------------------------------------------------
CUDA                            13            366            733           1879
C/C++ Header                    14            317            484           1293
C                               12            117            124            559
CMake                            4             64             64            262
C++                              1              6              6             39
-------------------------------------------------------------------------------
SUM:                            44            870           1411           4032
-------------------------------------------------------------------------------

Reviewers: hfinkel, jhuber6, fghanim, JonChesterfield, grokos, AndreyChurbanov, ye-luo, tianshilei1992, ggeorgakoudis, Hahnfeld, ABataev, hbae, ronlieb, gregrodgers

Subscribers: jvesely, yaxunl, bollu, guansong, jfb, sstefan1, aaron.ballman, openmp-commits, cfe-commits

Tags: #clang, #openmp

Differential Revision: https://reviews.llvm.org/D83349
 2020-07-10 19:09:41 -05:00
Alexey Bataev 1472e32cd7 [OPENMP][NVPTX] target [teams distribute] simd maybe run without 
runtime.

target [teams distribute] simd costructs do not require full runtime for
the correct execution, we can run them without full runtime.

llvm-svn: 358766
 2019-04-19 16:48:38 +00:00
Alexey Bataev dc9e7dcbb0 [OPENMP][NVPTX]Run combined constructs with if clause in SPMD mode. 
All target-parallel-based constructs can be run in SPMD mode from now
on. Even if num_threads clauses or if clauses are used, such constructs
can be executed in SPMD mode.

llvm-svn: 358595
 2019-04-17 16:53:08 +00:00
Alexey Bataev 7b55d2d554 [OPENMP, NVPTX] Emit simple reduction if requested. 
If simple reduction is requested, use the simple reduction instead of
the runtime functions calls.

llvm-svn: 334962
 2018-06-18 17:11:45 +00:00
Alexey Bataev df093e7b45 [OPENMP, NVPTX] Do not use SPMD mode for target simd and target teams 
distribute simd directives.

Directives `target simd` and `target teams distribute simd` must be
executed in non-SPMD mode.

llvm-svn: 332129
 2018-05-11 19:45:14 +00:00
Alexey Bataev fac26cf4ca [OPENMP] Add support for reductions on simd directives in target 
regions.

Added codegen for `simd reduction()` constructs in target directives.

llvm-svn: 331393
 2018-05-02 20:03:27 +00:00
Carlo Bertolli 79712097c7 [OpenMP] Extend NVPTX SPMD implementation of combined constructs 
Differential Revision: https://reviews.llvm.org/D43852

This patch extends the SPMD implementation to all target constructs and guards this implementation under a new flag.

llvm-svn: 326368
 2018-02-28 20:48:35 +00:00