Commit Graph

7 Commits

Author SHA1 Message Date
Alexey Bataev 471171c4c9 [OPENMP]Add check for undefined behavior with thread allocators on
target and task-based directives.

According to OpenMP 5.0, 2.11.4 allocate Clause, Restrictions, For task,
taskloop or target directives, allocation requests to memory allocators
with the trait access set to thread result in unspecified behavior.
Patch introduces a check for omp_thread_mem_alloc predefined allocator
on target- and trask-based directives.

llvm-svn: 357205
2019-03-28 19:15:36 +00:00
Alexey Bataev e04483ee35 [OPENMP]Initial support for 'allocate' clause.
Added parsing/sema analysis of the allocate clause.

llvm-svn: 357068
2019-03-27 14:14:31 +00:00
Joel E. Denny e6234d1429 [OpenMP] Replace predetermined shared for const variable
The following appears in OpenMP 3.1 sec. 2.9.1.1 as a predetermined
data-sharing attribute:

> Variables with const-qualified type having no mutable member are
> shared.

It does not appear in OpenmP 4.0, 4.5, or 5.0.  This patch removes the
implementation of that attribute when the requested OpenMP version is
greater than 3.1.

One effect of that removal is that `default(none)` affects const
variables without mutable members.

Also, without this patch, if a const variable without mutable members
was explicitly lastprivate or private, it was an error because it was
predetermined shared.  Now, clang instead complains that it's const
without mutable fields, which is a more intelligible diagnostic.  That
should be fine for all of the above versions because they all have
something like the following, which is quoted from OpenMP 5.0
sec. 2.19.3:

> A variable that is privatized must not have a const-qualified type
> unless it is of class type with a mutable member. This restriction does
> not apply to the firstprivate clause.

reduction and linear clauses already have separate checks for const
variables.  Future patches will merge the implementations.

Reviewed By: ABataev

Differential Revision: https://reviews.llvm.org/D56113

llvm-svn: 350439
2019-01-04 22:11:31 +00:00
Alexey Bataev a8a9153a37 [OPENMP] Support for -fopenmp-simd option with compilation of simd loops
only.

Added support for -fopenmp-simd option that allows compilation of
simd-based constructs without emission of OpenMP runtime calls.

llvm-svn: 321560
2017-12-29 18:07:07 +00:00
Alexey Bataev b358f9922a [OPENMP] Do not allow variables to be first|last-privates in
distribute directives.

OpenMP standard does not allow to mark the variables as firstprivate and lastprivate at the same time in distribute-based directives. Patch fixes this problem.

llvm-svn: 319560
2017-12-01 17:40:15 +00:00
Alexey Bataev 4d4624c20c [OPENMP] Fix DSA processing for member declaration.
If the member declaration is captured in the OMPCapturedExprDecl, we may
loose data-sharing attribute info for this declaration. Patch fixes this
bug.

llvm-svn: 308629
2017-07-20 16:47:47 +00:00
Kelvin Li da68118729 [OpenMP] Sema and parsing for 'target teams distribute simd’ pragma
This patch is to implement sema and parsing for 'target teams distribute simd’ pragma.
    
Differential Revision: https://reviews.llvm.org/D28252

llvm-svn: 291579
2017-01-10 18:08:18 +00:00