OpenMP patch ping

[Tobias Burnus <tobias@codesourcery.com>]

I would like to ping the following OpenMP patches.

First two non-pings but just RFC:

- "Restore 'GOMP_offload_unregister_ver' functionality"
   https://gcc.gnu.org/pipermail/gcc-patches/2022-July/597918.html
   * QUESTION: See 'assert' question in email exchange
    (linked email message + emails before/after it in the thread)

- [Patch] OpenMP: Fix folding with simd's linear clause [PR106492]
   https://gcc.gnu.org/pipermail/gcc-patches/2022-August/599308.html
   * Already committed as obvious to mainline + GCC 12
   * Question: Close PR or also backport to GCC 11? Other patch comments?


Now the patch pings – lightly ordered by complexity:

* [PATCH, OpenMP, C++] Allow classes with static members to be mappable
   https://gcc.gnu.org/pipermail/gcc-patches/2022-July/598918.html
   * Modified as requested in the patch review

* [Patch] OpenMP: Fix var replacement with 'simd' and linear-step vars [PR106548]
   https://gcc.gnu.org/pipermail/gcc-patches/2022-August/599832.html

* [Patch] Fortran: OpenMP fix declare simd inside modules and absent linear step [PR106566]
   https://gcc.gnu.org/pipermail/gcc-patches/2022-August/599829.html

* [patch] libgomp/splay-tree.h: Fix splay_tree_prefix handling
   https://gcc.gnu.org/pipermail/gcc-patches/2022-July/598694.html

* [Patch] OpenMP requires: Fix diagnostic filename corner case
   https://gcc.gnu.org/pipermail/gcc-patches/2022-July/598697.html

* [PATCH] openmp: fix max_vf setting for amdgcn offloading
   https://gcc.gnu.org/pipermail/gcc-patches/2022-July/598265.html

(Side note: we should at some point find a way to improve target-specific
handling; similar to the are-exceptions-supported issue of PR101544 but
there are more.)

* [PATCH] OpenMP, libgomp: Environment variable syntax extension.
   https://gcc.gnu.org/pipermail/gcc-patches/2022-July/598770.html
   * Post-review Revised patch

* [Patch] OpenMP, libgomp, gimple: omp_get_max_teams, omp_set_num_teams, and omp_{gs}et_teams_thread_limit on offload devices
   https://gcc.gnu.org/pipermail/gcc-patches/2022-August/599278.html
   * Revised patch; saw a light review before

* [Patch] OpenMP: Support reverse offload (middle end part)
   https://gcc.gnu.org/pipermail/gcc-patches/2022-July/598662.html
(Does permanent host fallback for target regions; I have a WIP patch
for AMDGCN and nvptx)

* [PATCH 0/3] OpenMP SIMD routines
   https://gcc.gnu.org/pipermail/gcc-patches/2022-August/599487.html

* [PATCH 0/5] [gfortran] Support for allocate directive (OpenMP 5.0)
   https://gcc.gnu.org/pipermail/gcc-patches/2022-January/588367.html
(already older - but I missed to ping it.)

* [PATCH 00/17] openmp, nvptx, amdgcn: 5.0 Memory Allocators
   https://gcc.gnu.org/pipermail/gcc-patches/2022-July/597976.html
   * Unified-Shared Memory & Pinned Memory

Depending on those:

* [PATCH] OpenMP, libgomp: Handle unified shared memory in omp_target_is_accessible.
   https://gcc.gnu.org/pipermail/gcc-patches/2022-May/594187.html

* [PATCH, OpenMP, Fortran] requires unified_shared_memory 1/2: adjust libgfortran memory allocators
   https://gcc.gnu.org/pipermail/gcc-patches/2022-August/599703.html
   (Fortran part, required for ...)
* [PATCH, OpenMP, Fortran] requires unified_shared_memory 2/2: insert USM allocators into libgfortran
   https://gcc.gnu.org/pipermail/gcc-patches/2022-August/599704.html

And finally:

* [PATCH, libgomp] Fix chunk_size<1 for dynamic schedule
   https://gcc.gnu.org/pipermail/gcc-patches/2022-August/599332.html

Tobias

PS: I hope the list above and the one below is somewhat complete...

  * * *

PPS: Tracking patches pending (re)submissions, just that it is not
forgotten on our side:

* [PATCH, OpenMP, v4] Implement uses_allocators clause for target regions
   https://gcc.gnu.org/pipermail/gcc-patches/2022-June/596587.html
   * Needs to be revised according to review comments

* Fortran allocatable components handling (needs to be slit into separate pieces and submitted
   separately)
   https://gcc.gnu.org/pipermail/gcc-patches/2022-April/593704.html

* [PATCH 00/16] OpenMP: lvalues in "map" clauses and struct handling rework
   https://gcc.gnu.org/pipermail/gcc-patches/2021-December/586600.html
   and January + February updates (search for metadirective)
+ patch review end of May, e.g.
   https://gcc.gnu.org/pipermail/gcc-patches/2022-May/595762.html (+ 4 more emails)

* [PATCH 00/16] OpenMP: lvalues in "map" clauses and struct handling rework
   https://gcc.gnu.org/pipermail/gcc-patches/2021-November/585439.html
   + [PATCH v2 00/11] OpenMP 5.0: C & C++ "declare mapper" support (plus struct rework, etc.)
   https://gcc.gnu.org/pipermail/gcc-patches/2022-March/591973.html

* [PATCH 00/40] OpenACC "kernels" Improvements
   https://gcc.gnu.org/pipermail/gcc-patches/2021-December/586901.html
   (4 simple patches are in by now; could be reviewed, in principle)

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