r322018 - [OPENMP] Current status of OpenMP support.

[GMail via cfe-commits]

This is is the status of OpenMP support in 6.0. There is nothing new
since branching.

-------------
Best regards,
Alexey Bataev

08.01.2018 14:09, Jonas Hahnfeld via cfe-commits пишет:
> Can we backport this page to release_60? I think the documented
> support is also valid for 6.0 or did I miss recent commits that added
> support for new directives / clauses?
>
> Am 2018-01-08 20:02, schrieb Alexey Bataev via cfe-commits:
>> Author: abataev
>> Date: Mon Jan  8 11:02:51 2018
>> New Revision: 322018
>>
>> URL: http://llvm.org/viewvc/llvm-project?rev=322018&view=rev
>> Log:
>> [OPENMP] Current status of OpenMP support.
>>
>> Summary: Some info about supported features of OpenMP 4.5-5.0.
>>
>> Reviewers: hfinkel, rsmith
>>
>> Subscribers: kkwli0, Hahnfeld, cfe-commits
>>
>> Differential Revision: https://reviews.llvm.org/D39457
>>
>> Added:
>>     cfe/trunk/docs/OpenMPSupport.rst
>> Modified:
>>     cfe/trunk/docs/index.rst
>>
>> Added: cfe/trunk/docs/OpenMPSupport.rst
>> URL:
>> http://llvm.org/viewvc/llvm-project/cfe/trunk/docs/OpenMPSupport.rst?rev=322018&view=auto
>>
>> ==============================================================================
>>
>> --- cfe/trunk/docs/OpenMPSupport.rst (added)
>> +++ cfe/trunk/docs/OpenMPSupport.rst Mon Jan  8 11:02:51 2018
>> @@ -0,0 +1,68 @@
>> +.. raw:: html
>> +
>> +  <style type="text/css">
>> +    .none { background-color: #FFCCCC }
>> +    .partial { background-color: #FFFF99 }
>> +    .good { background-color: #CCFF99 }
>> +  </style>
>> +
>> +.. role:: none
>> +.. role:: partial
>> +.. role:: good
>> +
>> +==================
>> +OpenMP Support
>> +==================
>> +
>> +Clang fully supports OpenMP 3.1 + some elements of OpenMP 4.5. Clang
>> supports offloading to X86_64, AArch64 and PPC64[LE] devices.
>> +Support for Cuda devices is not ready yet.
>> +The status of major OpenMP 4.5 features support in Clang.
>> +
>> +Standalone directives
>> +=====================
>> +
>> +* #pragma omp [for] simd: :good:`Complete`.
>> +
>> +* #pragma omp declare simd: :partial:`Partial`.  We support
>> parsing/semantic
>> +  analysis + generation of special attributes for X86 target, but still
>> +  missing the LLVM pass for vectorization.
>> +
>> +* #pragma omp taskloop [simd]: :good:`Complete`.
>> +
>> +* #pragma omp target [enter|exit] data: :good:`Complete`.
>> +
>> +* #pragma omp target update: :good:`Complete`.
>> +
>> +* #pragma omp target: :partial:`Partial`.  No support for the
>> `depend` clauses.
>> +
>> +* #pragma omp declare target: :partial:`Partial`.  No full codegen
>> support.
>> +
>> +* #pragma omp teams: :good:`Complete`.
>> +
>> +* #pragma omp distribute [simd]: :good:`Complete`.
>> +
>> +* #pragma omp distribute parallel for [simd]: :good:`Complete`.
>> +
>> +Combined directives
>> +===================
>> +
>> +* #pragma omp parallel for simd: :good:`Complete`.
>> +
>> +* #pragma omp target parallel: :partial:`Partial`.  No support for
>> the `depend` clauses.
>> +
>> +* #pragma omp target parallel for [simd]: :partial:`Partial`.  No
>> support for the `depend` clauses.
>> +
>> +* #pragma omp target simd: :partial:`Partial`.  No support for the
>> `depend` clauses.
>> +
>> +* #pragma omp target teams: :partial:`Partial`.  No support for the
>> `depend` clauses.
>> +
>> +* #pragma omp teams distribute [simd]: :good:`Complete`.
>> +
>> +* #pragma omp target teams distribute [simd]: :partial:`Partial`.  No
>> support for the and `depend` clauses.
>> +
>> +* #pragma omp teams distribute parallel for [simd]: :good:`Complete`.
>> +
>> +* #pragma omp target teams distribute parallel for [simd]:
>> :partial:`Partial`.  No full codegen support.
>> +
>> +Clang does not support any constructs/updates from upcoming OpenMP
>> 5.0 except for `reduction`-based clauses in the `task` and
>> `target`-based directives.
>> +
>>
>> Modified: cfe/trunk/docs/index.rst
>> URL:
>> http://llvm.org/viewvc/llvm-project/cfe/trunk/docs/index.rst?rev=322018&r1=322017&r2=322018&view=diff
>>
>> ==============================================================================
>>
>> --- cfe/trunk/docs/index.rst (original)
>> +++ cfe/trunk/docs/index.rst Mon Jan  8 11:02:51 2018
>> @@ -39,6 +39,7 @@ Using Clang as a Compiler
>>     SourceBasedCodeCoverage
>>     Modules
>>     MSVCCompatibility
>> +   OpenMPSupport
>>     ThinLTO
>>     CommandGuide/index
>>     FAQ
>>
>>
>> _______________________________________________
>> cfe-commits mailing list
>> cfe-commits at lists.llvm.org
>> http://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-commits
>

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