Change the string from "Intel(R) OMP" to "LLVM OMP" in libomp.so

Differential Revision: https://reviews.llvm.org/D74462

Reviewed By: JonChesterfield

Differential Revision: https://reviews.llvm.org/D74258

EXCLUDE_FROM_ALL means something else for add_lit_testsuite as it does
for something like add_executable. Distinguish between the two by
renaming the variable and making it an argument to add_lit_testsuite.

Differential revision: https://reviews.llvm.org/D74168

Fixes [[ https://bugs.llvm.org/show_bug.cgi?id=44733 | TEST 'libomp :: ompt/synchronization/reduction/tree_reduce.c' FAILED on 32-bit x86 ]]

For 32-bit we need at least 3 variables to avoid atomic reduction to be
choosen by runtime function `__kmp_determine_reduction_method`.
This patch adds reduction variables to the testcase.

Reviewers: mgorny, Hahnfeld

Differential Revision: https://reviews.llvm.org/D73850

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

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

- pthread affinity np has different semantic than sched affinity counterpart. On success returns strictly 0.

Reviewers: chandlerc, AndreyChurbanov, jdoerfert

Reviewed By: jdoerfert

Differential Revision: https://reviews.llvm.org/D72132

Reviewers: jdoerfert, Jim

Reviewed By: Jim

Subscribers: Jim, mgorny, guansong, jfb, openmp-commits

Tags: #openmp

Differential Revision: https://reviews.llvm.org/D72285

__has_attribute(fallthough) -> __has_attribute(fallthrough)

Submitted by: kiszk (Kazuaki Ishizaki <ishizaki@jp.ibm.com>)

Differential Revision: https://reviews.llvm.org/D72287

Submitted by: kiszk

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

Including two tests
These callbacks were added late to the 5.0 specification, an implementation is missing.

Reviewed By: jdoerfert

Differential Review: https://reviews.llvm.org/D70395

needs kmp_set_thread_affinity_mask_initial implementation.

Differential Revision: https://reviews.llvm.org/D70713

Patch by raj.khem (Khem Raj)

Differential Revision: https://reviews.llvm.org/D68543

Patch by adalava (Alfredo Dal'Ava J.nior)

Differential Revision: https://reviews.llvm.org/D67190

Summary:
The termination function duplicated the functionality of the
__attribute((destructor))-annotated function __kmp_internal_end_fini,
and we have no indication that this doesn't work.

The function might cause issues with link-time optimization turned on:
until very recently, none of the usual linkers was reporting functions
named in -Wl,-fini as used to the LTO plugin, so it might be dropped.
If the function is dropped, -Wl,-fini=__kmp_internal_end_fini doesn't
do what we want: with ld.bfd and lld it drops the FINI attribute from
.dynamic and with gold we get FINI = 0x0, which leads to a crash on
cleanup. This can be reproduced by building with

    -DLLVM_ENABLE_PROJECTS="clang;openmp" \
    -DLLVM_ENABLE_LTO=Thin \
    -DLLVM_USE_LINKER=gold

The issue in lld has been fixed in f95273f7, but gold remains without
fix so far.

Fixes PR43927.

Reviewers: JonChesterfield, jdoerfert, AndreyChurbanov

Reviewed By: AndreyChurbanov

Differential Revision: https://reviews.llvm.org/D69927

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

Reviewers: dim, chandlerc, jdoerfert

Reviewed By: dim

Differential Revision: https://reviews.llvm.org/D69047

Patch by devnexen (David CARLIER)

Differential Revision: https://reviews.llvm.org/D69220

Details:
- nconflicts field initialized;
- formatting fix (moved declaration out of the long line);
- count conflicts in new hash as opposed to old one.

Differential Revision: https://reviews.llvm.org/D68036

Reviewers: chandlerc, jlpeyton, jdoerfert, dim

Reviewed-By: dim

Differential Revision: https://reviews.llvm.org/D68580

llvm-svn: 374118

Patch by jbeich (Jan Beich)

Differential Revision: https://reviews.llvm.org/D68053

llvm-svn: 374038

Patch by jbeich (Jan Beich)

Differential Revision: https://reviews.llvm.org/D68051

llvm-svn: 374037

/proc unless Linux layer compatibility is activated for CentOS is activated is not present
thus relying on a more native for checking the address.

Reviewers: Hahnfeld, kongyl, jdoerfert, jlpeyton, AndreyChurbanov, emaster, dim

Reviewed By: Hahnfeld

Differential Revision: https://reviews.llvm.org/D67326

llvm-svn: 373152

llvm-svn: 372887

Patch by viroulep (Philippe Virouleau)

Differential Revision: https://reviews.llvm.org/D67447

llvm-svn: 372879

There's no need to initialize variables with static storage duration
because they're implicitly initialized to zero. See
https://en.cppreference.com/w/c/language/initialization#Implicit_initialization

I think that's already relied upon because the supplied 0 only sets
'kmp_time_global_t g_time;' in 'struct kmp_base_global'. The other fields
are not set in the code, but implicitly initialized by the compiler.

Differential Revision: https://reviews.llvm.org/D66292

llvm-svn: 370943

This patch fixes https://bugs.llvm.org/show_bug.cgi?id=42906, via adding
adjustment of number of threads on enter to the teams construct on host
according to user settings. This allows to pass checks and avoid assertions
at time of team of threads creation.

Patch by Andrey Churbanov

Differential Revision: https://reviews.llvm.org/D66351

llvm-svn: 369430

Fix last warned location in ittnotify_static.cpp using the defined
macro KMP_FALLTHROUGH().

Differential Revision: https://reviews.llvm.org/D65871

llvm-svn: 369003

The variables in kmp_lock.cpp are really arrays of function pointers
that return void or int, not pointers to functions that return void*
or int*. The other changes are only cosmetic.

Differential Revision: https://reviews.llvm.org/D65870

llvm-svn: 369002

The implementation status can only be one of
ompt_event_UNIMPLEMENTED = ompt_set_never = 1
ompt_event_MAY_ALWAYS = ompt_set_always = 5

In both cases, the condition was already true, so just remove
the check.

Differential Revision: https://reviews.llvm.org/D65869

llvm-svn: 369001

Instead, maintain a list of disabled options to still build libomp and
libomptarget without warnings. This includes -Wno-error and -Wno-pedantic
to silence warnings that LLVM enables when building in-tree.

I tested the following compilers:
 * Clang 6.0, 7.0, 8.0
 * GCC 4.8.5 (CentOS 7), GCC 6, 7, 8, 9
 * Intel Compiler 16, 17, 18, 19

RFC thread on openmp-dev mailing list:
http://lists.llvm.org/pipermail/openmp-dev/2019-August/002668.html

Differential Revision: https://reviews.llvm.org/D65867

llvm-svn: 368999

This patch fixes problem raised in post-review comments of the
https://reviews.llvm.org/D65285. Developers of ittnotify confirmed
that dll_path_ptr field of the __itt_global structure is never used
by ittnotify library, so it is safe to remove the dll_path array.

Differential Revision: https://reviews.llvm.org/D65885

llvm-svn: 368559

Patch by Isuru Fernando

Differential Revision: https://reviews.llvm.org/D65714

llvm-svn: 367949

New OMPT tests with teams construct should be disabled for GCC as it
emits code with a GOMP entry not supported in the LLVM runtime.

Differential Revision: https://reviews.llvm.org/D65757

llvm-svn: 367939

This change adds OMPT support for events from teams construct.

Differential Revision: https://reviews.llvm.org/D64025

llvm-svn: 367746

All other files are already C++ and the build system has always
passed '-x c++' for C files, effectively compiling them as C++.

To stay warning free we need one fix in ittnotify_static.{c,cpp}:
The variable dll_path can be written to, so it must not be const.
GCC complained with -Wcast-qual and I think it's right.

Differential Revision: https://reviews.llvm.org/D65285

llvm-svn: 367343

Round the stack size to a multiple of the page size. Older versions of
Android (until KitKat) would fail pthread_attr_setstacksize with
EINVAL if the stack size was not a multiple of the page size.

Patch by Dan Albert <danalbert@google.com>.

Test: Build, copied into the NDK, passed openmp test on ICS.
Bug: https://github.com/android-ndk/ndk/issues/9
llvm-svn: 367070

Both Clang and GCC complained that they cannot initialize a return
object of type 'kmp_proc_bind_t' with an 'int'. While at it, also
fix a warning about missing parentheses thrown by Clang.

Differential Revision: https://reviews.llvm.org/D65284

llvm-svn: 367041