llvm-project.git/openmp/runtime/src/kmp_utility.cpp, branch main

[OpenMP] Remove unused logical/physical CPUID information (#83298)

2024-03-12T18:37:01+00:00

[openmp][wasm] Allow compiling OpenMP to WebAssembly (#71297)

2023-12-14T19:48:01+00:00

This change allows building the static OpenMP runtime, `libomp.a`, as
WebAssembly. It builds on the work done in [D142593] but goes further in
several ways:
 - it makes the OpenMP CMake files more WebAssembly-aware
- it conditions much more code (or code that had been refactored since
[D142593]) for `KMP_ARCH_WASM` and `KMP_OS_WASI`
- it fixes a Clang crash due to unimplemented common symbols in
WebAssembly

The commit messages have more details. Please understand this PR as a
start, not the completed work, for WebAssembly support in OpenMP.
Getting the tests running somehow would be a good next step, e.g.; but
what is contained here works, at least with recent versions of
[wasi-sdk] and engines that support [wasi-threads]. I suspect the same
is true for Emscripten and browsers, but I have not tested that
workflow.

[D142593]: https://reviews.llvm.org/D142593
[wasi-sdk]: https://github.com/WebAssembly/wasi-sdk
[wasi-threads]: https://github.com/WebAssembly/wasi-threads

---------

Co-authored-by: Atanas Atanasov

[OpenMP] Solve potential VERSION script error w/ OMPT symbols

2023-01-03T21:47:12+00:00

The patch adds the symbols if OMPT_SUPPORT is not defined.
Github issue: https://github.com/llvm/llvm-project/issues/59660

Reviewed By: jhuber6

Differential Revision: https://reviews.llvm.org/D140591

[OpenMP][mingw] Fix build for aarch64 target

2022-11-08T13:27:03+00:00

This patch changes AArch64 + `__GNUC__` to use `__sync` builtins to
implement internal atomic macros just like for Unix, because mingw-w64
is missing some of the intrinsics which the MSVC codepath is using.

Then some remaining intel-only functions are removed from dllexport to
fix linking.

This should fix https://github.com/llvm/llvm-project/issues/56349.

Reviewed By: natgla

Differential Revision: https://reviews.llvm.org/D137168

[OpenMP][host runtime] Add initial hybrid CPU support

2021-10-14T21:49:42+00:00

Detect, through CPUID.1A, and show user different core types through
KMP_AFFINITY=verbose mechanism. Offer future runtime optimizations
 __kmp_is_hybrid_cpu() to know whether running on a hybrid system or not.

Differential Revision: https://reviews.llvm.org/D110435

[OpenMP][host runtime] small fixup of RTM CPUID bit check

2021-10-14T21:49:42+00:00

[OpenMP][host runtime] Introduce kmp_cpuinfo_flags_t to replace integer flags

2021-10-01T16:08:39+00:00

Store CPUID support flags as bits instead of using entire integers.

Differential Revision: https://reviews.llvm.org/D110091

[OpenMP] Remove unused cpu_stackoffset member

2021-03-15T21:52:04+00:00

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

2021-02-20T17:46:32+00:00

Same script as D95318. Test files are excluded.

Reviewed By: AndreyChurbanov

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

[OpenMP] libomp: Handle implicit conversion warnings

2020-12-30T21:39:57+00:00

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