delta/llvm.git/openmp/runtime/src/kmp_dispatch.cpp, branch EmptyLineAfterFunctionDefinition

[OpenMP] Change monotonicity of dynamic schedule

2021-09-07T13:18:46+00:00

This patch changes the default monotonicity of dynamic schedule from
monotonic to non-monotonic when no modifier is specified.

Differential Revision: https://reviews.llvm.org/D109026

[OpenMP] Add a few small fixes

2021-08-16T15:02:49+00:00

* Add comment to help ensure new construct data are added in two places
* Check for division by zero in the loop worksharing code
* Check for syntax errors in parrange parsing

Differential Revision: https://reviews.llvm.org/D105929

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

2021-08-16T10:39:23+00:00

Added couple more checks to silence KlocWork static code analyzer.

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

[OpenMP][NFC] libomp: fix wrong debug assertion.

2021-06-24T23:02:14+00:00

Normalized bounds of chunk of iterations to steal from are inclusive,
so upper bound should not be decremented in expression to check.
Problem was in attempt to steal iterations 0:0, that caused assertion after
wrong decrement. Reported in comment to https://reviews.llvm.org/D103648.

Differential Revision: https://reviews.llvm.org/D104880

[OpenMP] libomp: fix dynamic loop dispatcher

2021-06-22T13:29:01+00:00

Restructured dynamic loop dispatcher code.
Fixed use of dispatch buffers for nonmonotonic dynamic (static_steal) schedule:
- eliminated possibility of stealing iterations of the wrong loop when victim
  thread changed its buffer to work on another loop;
- fixed race when victim thread changed its buffer to work in nested parallel;
- eliminated "static" property of the schedule, that is now a single thread can
  execute whole loop.

Differential Revision: https://reviews.llvm.org/D103648

[OpenMP] Check loc for NULL before dereferencing it

2021-06-07T14:45:48+00:00

The ident_t * argument in __kmp_get_monotonicity was being used without
a customary NULL check, causing the function to crash in a Debug build.
Release builds were not affected thanks to dead store elimination.

[OpenMP] Misc. changes that add or remove pointer/bound checks

2021-03-23T23:55:08+00:00

-- Added or moved checks to appropriate places.
-- Removed ineffective null check where the pointer is already being
   dereferenced around the code.
-- Initialized variables that can be used without definitions.
-- Added call to dlclose/FreeLibrary in OMPT tool activation.
-- Added a new build compiler definition.

Differential Revision: https://reviews.llvm.org/D98584

[OpenMP] Fix potential integer overflow in dynamic schedule code

2021-03-08T15:43:05+00:00

Restrict the chunk_size * chunk_num to only occur for valid
chunk_nums and reimplement calculating the limit to avoid overflow.

Differential Revision: https://reviews.llvm.org/D96747

Added API for "masked" construct via two entrypoints: __kmpc_masked,

2021-03-05T15:29:57+00:00

and __kmpc_end_masked. The "master" construct is deprecated. Changed
proc-bind keyword from "master" to "primary". Use of both master
construct and master as proc-bind keyword is still allowed, but
deprecated.

Remove references to "master" in comments and strings, and replace
with "primary" or "primary thread". Function names and variables were
not touched, nor were references to deprecated master construct. These
can be updated over time. No new code should refer to master.

[OpenMP] Help static loop code avoid over/underflow

2021-02-22T19:22:01+00:00

This code alleviates some pathological loop parameters (lower,
upper, stride) within calculations involved in the static loop code.  It
bounds the chunk size to the trip count if it is greater than the trip
count and also minimizes problematic code for when trip count < nth.

Differential Revision: https://reviews.llvm.org/D96426