[OpenMP][libomp] do not try to dlopen libmemkind on macOS

The memkind library is only available for linux. Calling dlopen here
can also be problematic in a client app that fork'ed.

Differential Rev

[OpenMP][libomp] do not try to dlopen libmemkind on macOS

The memkind library is only available for linux. Calling dlopen here
can also be problematic in a client app that fork'ed.

Differential Revision: https://reviews.llvm.org/D126579

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[OpenMP] Change target memory tests to use allocators

The target allocators have been supported for NVPTX offloading for
awhile. The tests should use the allocators instead of calling the
functions

[OpenMP] Change target memory tests to use allocators

The target allocators have been supported for NVPTX offloading for
awhile. The tests should use the allocators instead of calling the
functions manually. Also the comments indicating these being a preview
should be removed.

Reviewed By: jdoerfert

Differential Revision: https://reviews.llvm.org/D123242

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[OpenMP] libomp: add OpenMP 5.1 memory allocation routines.

Aligned allocation routines added.
Fortran interfaces added for all allocation routines.

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

[OpenMP] libomp: add OpenMP 5.1 memory allocation routines.

Aligned allocation routines added.
Fortran interfaces added for all allocation routines.

Differential Revision: https://reviews.llvm.org/D110923

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[OpenMP] libomp: cleanup: minor fixes to silence static analyzer.

Added couple more checks to silence KlocWork static code analyzer.

Differential Revision: https://reviews.llvm.org/D107348

[OpenMP][NFC] libomp: silence warnings on unused variables.

Put declarations/definitions of unused variables under corresponding macros
to silence clang build warnings.

Differential Revision: https

[OpenMP][NFC] libomp: silence warnings on unused variables.

Put declarations/definitions of unused variables under corresponding macros
to silence clang build warnings.

Differential Revision: https://reviews.llvm.org/D106608

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[OpenMP] Add allocator support for target memory

This is a preview of allocator support for target memory that depends on the
offload runtime API which allocates memory as described below.

llvm_omp

[OpenMP] Add allocator support for target memory

This is a preview of allocator support for target memory that depends on the
offload runtime API which allocates memory as described below.

llvm_omp_target_alloc_host(size_t size, int device_num);
-- Returns non-migratable memory owned by host.
-- Memory is accessible by host and device(s).

llvm_omp_target_alloc_shared(size_t size, int device_num);
-- Returns migratable memory owned by host and device.
-- Memory is accessible by host and device.

llvm_omp_target_alloc_device(size_t size, int device_num);
-- Returns memory owned by device.
-- Memory is only accessible by device.

New memory space and predefined allocator names are
-- llvm_omp_target_host_mem_space
-- llvm_omp_target_shared_mem_space
-- llvm_omp_target_device_mem_space
-- llvm_omp_target_host_mem_alloc
-- llvm_omp_target_shared_mem_alloc
-- llvm_omp_target_device_mem_alloc

Differential Revision: https://reviews.llvm.org/D96669

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[OpenMP][NFC] clang-format the whole openmp project

Same script as D95318. Test files are excluded.

Reviewed By: AndreyChurbanov

Differential Revision: https://reviews.llvm.org/D97088

[OpenMP] Use persistent memory for omp_large_cap_mem

This change enables volatile use of persistent memory for omp_large_cap_mem*
on supported systems. It depends on libmemkind's support for persist

[OpenMP] Use persistent memory for omp_large_cap_mem

This change enables volatile use of persistent memory for omp_large_cap_mem*
on supported systems. It depends on libmemkind's support for persistent memory,
and requirements/details can be found at the following url.

https://pmem.io/2020/01/20/memkind-dax-kmem.html

Differential Revision: https://reviews.llvm.org/D94353

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[OpenMP] Update allocator trait key/value definitions

Use new definitions introduced in 5.1 specification.

Differential Revision: https://reviews.llvm.org/D94277

[OpenMP] libomp: Handle implicit conversion warnings

This patch partially prepares the runtime source code to be built with
-Wconversion, which should trigger warnings if any implicit conversions
ca

[OpenMP] libomp: Handle implicit conversion warnings

This patch partially prepares the runtime source code to be built with
-Wconversion, which should trigger warnings if any implicit conversions
can possibly change a value. For builds done with icc or gcc, all such
warnings are handled in this patch. clang gives a much longer list of
warnings, particularly for sign conversions, which the other compilers
don't report. The -Wconversion flag is commented into cmake files, but
I'm not going to turn it on. If someone thinks it is important, and wants
to fix all the clang warnings, they are welcome to.

Types of changes made here involve either improving the consistency of types
used so that no conversion is needed, or else performing careful explicit
conversions, when we're sure a problem won't arise.

Patch is a combination of changes by Terry Wilmarth and Johnny Peyton.

Differential Revision: https://reviews.llvm.org/D92942

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[OpenMP] Add omp_realloc implementation

This patch adds omp_realloc function implementation according to
OpenMP 5.1 specification.

Differential Revision: https://reviews.llvm.org/D90971

[OpenMP] Add omp_calloc implementation

This patch adds omp_calloc implementation according to OpenMP 5.1
specification.

Differential Revision: https://reviews.llvm.org/D90967

[OpenMP] NFC: Fix trivial typo

Differential Revision: https://reviews.llvm.org/D77430

[OpenMP] change omp_atk_* and omp_atv_* enumerators to lowercase [NFC]

The OpenMP spec defines the OMP_ATK_* and OMP_ATV_* to be lowercase.

Differential Revision: https://reviews.llvm.org/D73248

[OpenMP] NFC: Fix trivial typos in comments

Submitted by: kiszk

Differential Revision: https://reviews.llvm.org/D72171

[OpenMP] Remove OMP spec versioning

Remove all older OMP spec versioning from the runtime and build system.

Patch by Terry Wilmarth

Differential Revision: https://reviews.llvm.org/D64534

llvm-svn

[OpenMP] Remove OMP spec versioning

Remove all older OMP spec versioning from the runtime and build system.

Patch by Terry Wilmarth

Differential Revision: https://reviews.llvm.org/D64534

llvm-svn: 365963

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[OpenMP] Implement 5.0 memory management

* Replace HBWMALLOC API with more general MEMKIND API, new functions
and variables added.
* Have libmemkind.so loaded when accessible.
* Redirect memspaces

[OpenMP] Implement 5.0 memory management

* Replace HBWMALLOC API with more general MEMKIND API, new functions
and variables added.
* Have libmemkind.so loaded when accessible.
* Redirect memspaces to default one except for high bandwidth which
is processed separately.
* Ignore some allocator traits e.g., sync_hint, access, pinned, while
others are processed normally e.g., alignment, pool_size, fallback,
fb_data, partition.
* Add tests for memory management

Patch by Andrey Churbanov

Differential Revision: https://reviews.llvm.org/D59783

llvm-svn: 357929

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Update more file headers across all of the LLVM projects in the monorepo
to reflect the new license. These used slightly different spellings that
defeated my regular expressions.

We understand that

Update more file headers across all of the LLVM projects in the monorepo
to reflect the new license. These used slightly different spellings that
defeated my regular expressions.

We understand that people may be surprised that we're moving the header
entirely to discuss the new license. We checked this carefully with the
Foundation's lawyer and we believe this is the correct approach.

Essentially, all code in the project is now made available by the LLVM
project under our new license, so you will see that the license headers
include that license only. Some of our contributors have contributed
code under our old license, and accordingly, we have retained a copy of
our old license notice in the top-level files in each project and
repository.

llvm-svn: 351648

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[OpenMP] Initial implementation of OMP 5.0 Memory Management routines

Implemented omp_alloc, omp_free, omp_{set,get}_default_allocator entries,
and OMP_ALLOCATOR environment variable.

Added support

[OpenMP] Initial implementation of OMP 5.0 Memory Management routines

Implemented omp_alloc, omp_free, omp_{set,get}_default_allocator entries,
and OMP_ALLOCATOR environment variable.

Added support for HBW memory on Linux if libmemkind.so library is accessible
(dynamic library only, no support for static libraries).
Only used stable API (hbwmalloc) of the memkind library
though we may consider using experimental API in future.

The ICV def-allocator-var is implemented per implicit task similar to
place-partition-var. In the absence of a requested allocator, the uses the
default allocator.

Predefined allocators (the only ones currently available) are made similar
for C and Fortran, - pointers (long integers) with values 1 to 8.

Patch by Andrey Churbanov

Differential Revision: https://reviews.llvm.org/D51232

llvm-svn: 341687

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[OpenMP] Cleanup code

This patch cleans up unused functions, variables, sign compare issues, and
addresses some -Warning flags which are now enabled including -Wcast-qual.
Not all the warning flags

[OpenMP] Cleanup code

This patch cleans up unused functions, variables, sign compare issues, and
addresses some -Warning flags which are now enabled including -Wcast-qual.
Not all the warning flags in LibompHandleFlags.cmake are enabled, but some
are with this patch.

Some __kmp_gtid_from_* macros in kmp.h are switched to static inline functions
which allows us to remove the awkward definition of KMP_DEBUG_ASSERT() and
KMP_ASSERT() macros which used the comma operator. This had to be done for the
innumerable -Wunused-value warnings related to KMP_DEBUG_ASSERT()

Differential Revision: https://reviews.llvm.org/D49105

llvm-svn: 339393

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PR30734: Remove __kmp_ft_page_allocate()

This function was not enabled by default and not exported when manually
tweaking the build flags. Additionally it was hard to use since there
is no correspon

PR30734: Remove __kmp_ft_page_allocate()

This function was not enabled by default and not exported when manually
tweaking the build flags. Additionally it was hard to use since there
is no corresponding __kmp_ft_page_free().
The code itself is questionable because the returned memory address
is padded by an extra pointer which stores the unpadded start of the
allocated region (this would need to be freed).

Differential Revision: https://reviews.llvm.org/D49802

llvm-svn: 338052

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Apply formatting changes

.clang-format's comments are removed and a (hopefully) final
set of formatting changes are applied.

Differential Revision: https://reviews.llvm.org/D38837
Differential Revi

Apply formatting changes

.clang-format's comments are removed and a (hopefully) final
set of formatting changes are applied.

Differential Revision: https://reviews.llvm.org/D38837
Differential Revision: https://reviews.llvm.org/D38920

llvm-svn: 316227

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Remove unnecessary semicolons

Removes semicolons after if {} blocks, function definitions, etc.
I was able to apply the large OMPT patch cleanly on top of this one
with no conflicts.

llvm-svn: 3143

Remove unnecessary semicolons

Removes semicolons after if {} blocks, function definitions, etc.
I was able to apply the large OMPT patch cleanly on top of this one
with no conflicts.

llvm-svn: 314340

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OpenMP RTL cleanup: eliminated warnings with -Wcast-qual, patch 2.

Changes are: got all atomics to accept volatile pointers that allowed
to simplify many type conversions. Windows specific code fixe

OpenMP RTL cleanup: eliminated warnings with -Wcast-qual, patch 2.

Changes are: got all atomics to accept volatile pointers that allowed
to simplify many type conversions. Windows specific code fixed correspondingly.

Differential Revision: https://reviews.llvm.org/D35417

llvm-svn: 308164

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remove deprecated register storage class specifier

While importing libomp into the FreeBSD base system we encountered
Clang warnings that "'register' storage class specifier is deprecated
and incomp

remove deprecated register storage class specifier

While importing libomp into the FreeBSD base system we encountered
Clang warnings that "'register' storage class specifier is deprecated
and incompatible with C++1z [-Wdeprecated-register]".

Differential Revision: https://reviews.llvm.org/D35124

llvm-svn: 307441

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