[flang][OpenMP] Compile proper `omp_lib.mod` from the `openmp/src/include` sources (#80874)

This PR changes the build system to use use the sources for the module
`omp_lib` and the `omp_lib.h` include file from the `openmp` runtime
project and not from a separate copy of these files. This will greatly
reduce potential for inconsistencies when adding features to the OpenMP
runtime implementation.

When the OpenMP subproject is not configured, this PR also disables the
corresponding LIT tests with a "REQUIRES" directive at the beginning of
the OpenMP test files.

---------

Co-authored-by: Valentin Clement (バレンタイン クレメン) <clementval@gmail.com>

2 files changed, 0 insertions, 467 deletions

diff --git a/flang/module/omp_lib.f90 b/flang/module/omp_lib.f90
deleted file mode 100644
index 2ca15da..0000000
--- a/flang/module/omp_lib.f90
+++ /dev/null
@@ -1,13 +0,0 @@
-!===-- module/omp_lib.f90 --------------------------------------------------===!
-!
-! Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
-! See https://llvm.org/LICENSE.txt for license information.
-! SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
-!
-!===------------------------------------------------------------------------===!
-
-module omp_lib
-
-include "omp_lib.h"
-
-end module omp_lib
diff --git a/flang/module/omp_lib.h b/flang/module/omp_lib.h
deleted file mode 100644
index efc9ceb..0000000
--- a/flang/module/omp_lib.h
+++ /dev/null
@@ -1,454 +0,0 @@
-!===-- module/omp_lib.h ------------------------------------------*- F90 -*-===!
-!
-! Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
-! See https://llvm.org/LICENSE.txt for license information.
-! SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
-!
-!===------------------------------------------------------------------------===!
-
-!dir$ free
-
-  integer, parameter :: omp_integer_kind = selected_int_kind(9) ! 32-bit int
-  integer, parameter :: omp_logical_kind = 1 ! C_BOOL
-
-  integer, parameter :: omp_sched_kind = omp_integer_kind
-  integer, parameter :: omp_proc_bind_kind = omp_integer_kind
-  integer, parameter :: omp_pause_resource_kind = omp_integer_kind
-  integer, parameter :: omp_sync_hint_kind = omp_integer_kind
-  integer, parameter :: omp_lock_hint_kind = omp_sync_hint_kind
-  integer, parameter :: omp_event_handle_kind = omp_integer_kind
-  integer, parameter :: omp_alloctrait_key_kind = omp_integer_kind
-  integer, parameter :: omp_alloctrait_val_kind = omp_integer_kind
-  integer, parameter :: omp_allocator_handle_kind = omp_integer_kind
-  integer, parameter :: omp_memspace_handle_kind = omp_integer_kind
-  integer, parameter :: omp_lock_kind = int_ptr_kind()
-  integer, parameter :: omp_nest_lock_kind = int_ptr_kind()
-  integer, parameter :: omp_depend_kind = omp_integer_kind
-
-  integer(kind=omp_sched_kind), parameter :: &
-    omp_sched_static = 1, &
-    omp_sched_dynamic = 2, &
-    omp_sched_guided = 3, &
-    omp_sched_auto = 4
-
-  integer(kind=omp_proc_bind_kind), parameter :: &
-    omp_proc_bind_false = 0, &
-    omp_proc_bind_true = 1, &
-    omp_proc_bind_master = 2, &
-    omp_proc_bind_close = 3, &
-    omp_proc_bind_spread = 4
-
-  integer(kind=omp_pause_resource_kind), parameter :: &
-    omp_pause_soft = 1, &
-    omp_pause_hard = 2
-
-  integer(kind=omp_sync_hint_kind), parameter :: &
-    omp_sync_hint_none = 0, &
-    omp_sync_hint_uncontended = 1, &
-    omp_sync_hint_contended = 2, &
-    omp_sync_hint_nonspeculative = 4, &
-    omp_sync_hint_speculative = 8
-  integer(kind=omp_lock_hint_kind), parameter :: &
-    omp_lock_hint_none = omp_sync_hint_none, &
-    omp_lock_hint_uncontended = omp_sync_hint_uncontended, &
-    omp_lock_hint_contended = omp_sync_hint_contended, &
-    omp_lock_hint_nonspeculative = omp_sync_hint_nonspeculative, &
-    omp_lock_hint_speculative = omp_sync_hint_speculative
-
-  integer(kind=omp_event_handle_kind), parameter :: &
-    omp_allow_completion_event = 0, &
-    omp_task_fulfill_event = 1
-
-  integer(kind=omp_alloctrait_key_kind), parameter :: &
-    omp_atk_sync_hint = 1, &
-    omp_atk_alignment = 2, &
-    omp_atk_access = 3, &
-    omp_atk_pool_size = 4, &
-    omp_atk_fallback = 5, &
-    omp_atk_fb_data = 6, &
-    omp_atk_pinned = 7, &
-    omp_atk_partition = 8
-
-  integer(kind=omp_alloctrait_val_kind), parameter :: &
-    omp_atv_false = 0, &
-    omp_atv_true = 1, &
-    omp_atv_default = 2, &
-    omp_atv_contended = 3, &
-    omp_atv_uncontended = 4, &
-    omp_atv_sequential = 5, &
-    omp_atv_private = 6, &
-    omp_atv_all = 7, &
-    omp_atv_thread = 8, &
-    omp_atv_pteam = 9, &
-    omp_atv_cgroup = 10, &
-    omp_atv_default_mem_fb = 11, &
-    omp_atv_null_fb = 12, &
-    omp_atv_abort_fb = 13, &
-    omp_atv_allocator_fb = 14, &
-    omp_atv_environment = 15, &
-    omp_atv_nearest = 16, &
-    omp_atv_blocked = 17, &
-    omp_atv_interleaved = 18
-
-  type, bind(c) :: omp_alloctrait
-    integer(kind=omp_alloctrait_key_kind) :: key, value
-  end type omp_alloctrait
-
-  integer(kind=omp_allocator_handle_kind), parameter :: omp_null_allocator = 0
-
-  integer(kind=omp_memspace_handle_kind), parameter :: &
-    omp_default_mem_space = 0, &
-    omp_large_cap_mem_space = 0, &
-    omp_const_mem_space = 0, &
-    omp_high_bw_mem_space = 0, &
-    omp_low_lat_mem_space = 0, &
-    omp_default_mem_alloc = 1, &
-    omp_large_cap_mem_alloc = omp_default_mem_alloc, &
-    omp_const_mem_alloc = 1, &
-    omp_high_bw_mem_alloc = 1, &
-    omp_low_lat_mem_alloc = 1, &
-    omp_thread_mem_alloc = omp_atv_thread, &
-    omp_pteam_mem_alloc = omp_atv_pteam, &
-    omp_cgroup_mem_alloc = omp_atv_cgroup
-
-  integer(kind=omp_integer_kind), parameter :: openmp_version = 200805
-
-  interface
-
-    subroutine omp_set_num_threads(nthreads) bind(c)
-      import
-      integer(kind=omp_integer_kind), value :: nthreads
-    end subroutine omp_set_num_threads
-
-    function omp_get_num_threads() bind(c)
-      import
-      integer(kind=omp_integer_kind) :: omp_get_num_threads
-    end function omp_get_num_threads
-
-    function omp_get_max_threads() bind(c)
-      import
-      integer(kind=omp_integer_kind) :: omp_get_max_threads
-    end function omp_get_max_threads
-
-    function omp_get_thread_num() bind(c)
-      import
-      integer(kind=omp_integer_kind) :: omp_get_thread_num
-    end function omp_get_thread_num
-
-    function omp_get_num_procs() bind(c)
-      import
-      integer(kind=omp_integer_kind) :: omp_get_num_procs
-    end function omp_get_num_procs
-
-    function omp_in_parallel() bind(c)
-      import
-      logical(kind=omp_logical_kind) :: omp_in_parallel
-    end function omp_in_parallel
-
-    subroutine omp_set_dynamic(enable) bind(c)
-      import
-      logical(kind=omp_logical_kind), value :: enable
-    end subroutine omp_set_dynamic
-
-    function omp_get_dynamic() bind(c)
-      import
-      logical(kind=omp_logical_kind) :: omp_get_dynamic
-    end function omp_get_dynamic
-
-    function omp_get_cancelation() bind(c)
-      import
-      logical(kind=omp_logical_kind) :: omp_get_cancelation
-    end function omp_get_cancelation
-
-    subroutine omp_set_nested(enable) bind(c)
-      import
-      logical(kind=omp_logical_kind), value :: enable
-    end subroutine omp_set_nested
-
-    function omp_get_nested() bind(c)
-      import
-      logical(kind=omp_logical_kind) ::omp_get_nested
-    end function omp_get_nested
-
-    subroutine omp_set_schedule(kind, modifier) bind(c)
-      import
-      integer(kind=omp_integer_kind), value :: kind, modifier
-    end subroutine omp_set_schedule
-
-    subroutine omp_get_schedule(kind, modifier) bind(c)
-      import
-      integer(kind=omp_integer_kind), intent(out) :: kind, modifier
-    end subroutine omp_get_schedule
-
-    function omp_get_thread_limit() bind(c)
-      import
-      integer(kind=omp_integer_kind) :: omp_get_thread_limit
-    end function omp_get_thread_limit
-
-    function omp_get_supported_active_levels() bind(c)
-      import
-      integer(kind=omp_integer_kind) :: omp_get_supported_active_levels
-    end function omp_get_supported_active_levels
-
-    subroutine omp_set_max_active_levels(max_levels) bind(c)
-      import
-      integer(kind=omp_integer_kind), value :: max_levels
-    end subroutine omp_set_max_active_levels
-
-    function omp_get_max_active_levels() bind(c)
-      import
-      integer(kind=omp_integer_kind) :: omp_get_max_active_levels
-    end function omp_get_max_active_levels
-
-    function omp_get_level() bind(c)
-      import
-      integer(kind=omp_integer_kind) :: omp_get_level
-    end function omp_get_level
-
-    function omp_get_ancestor_thread_num(level) bind(c)
-      import
-      integer(kind=omp_integer_kind), value :: level
-      integer(kind=omp_integer_kind) :: omp_get_ancestor_thread_num
-    end function omp_get_ancestor_thread_num
-
-    function omp_get_team_size(level) bind(c)
-      import
-      integer(kind=omp_integer_kind), value :: level
-      integer(kind=omp_integer_kind) :: omp_get_team_size
-    end function omp_get_team_size
-
-    function omp_get_active_level() bind(c)
-      import
-      integer(kind=omp_integer_kind) :: omp_get_active_level
-    end function omp_get_active_level
-
-    function omp_in_final() bind(c)
-      import
-      logical(kind=omp_logical_kind) :: omp_in_final
-    end function omp_in_final
-
-    function omp_get_proc_bind() bind(c)
-      import
-      integer(kind=omp_proc_bind_kind) :: omp_get_proc_bind
-    end function omp_get_proc_bind
-
-    function omp_get_num_places() bind(c)
-      import
-      integer(kind=omp_integer_kind) :: omp_get_num_places
-    end function omp_get_num_places
-
-    function omp_get_place_num_procs(place_num) bind(c)
-      import
-      integer(kind=omp_integer_kind), value :: place_num
-      integer(kind=omp_integer_kind) omp_get_place_num_procs
-    end function omp_get_place_num_procs
-
-    subroutine omp_get_place_proc_ids(place_num, ids) bind(c)
-      import
-      integer(kind=omp_integer_kind), value :: place_num
-      integer(kind=omp_integer_kind), intent(out) :: ids(*)
-    end subroutine omp_get_place_proc_ids
-
-    function omp_get_place_num() bind(c)
-      import
-      integer(kind=omp_integer_kind) :: omp_get_place_num
-    end function omp_get_place_num
-
-    function omp_get_partition_num_places() bind(c)
-      import
-      integer(kind=omp_integer_kind) :: omp_get_partition_num_places
-    end function omp_get_partition_num_places
-
-    subroutine omp_get_partition_place_nums(place_nums) bind(c)
-      import
-      integer(kind=omp_integer_kind), intent(out) :: place_nums(*)
-    end subroutine omp_get_partition_place_nums
-
-    subroutine omp_set_affinity_format(format) bind(c)
-      import
-      character(len=*), intent(in) :: format
-    end subroutine omp_set_affinity_format
-
-    function omp_get_affinity_format(buffer) bind(c)
-      import
-      character(len=*), intent(out) :: buffer
-      integer(kind=omp_integer_kind) :: omp_get_affinity_format
-    end function omp_get_affinity_format
-
-    subroutine omp_display_affinity(format) bind(c)
-      import
-      character(len=*), intent(in) :: format
-    end subroutine omp_display_affinity
-
-    function omp_capture_affinity(buffer, format) bind(c)
-      import
-      character(len=*), intent(out) :: buffer
-      character(len=*), intent(in) :: format
-      integer(kind=omp_integer_kind) omp_capture_affinity
-    end function omp_capture_affinity
-
-    subroutine omp_set_default_device(device_num) bind(c)
-      import
-      integer(kind=omp_integer_kind), value :: device_num
-    end subroutine omp_set_default_device
-
-    function omp_get_default_device() bind(c)
-      import
-      integer(kind=omp_integer_kind) :: omp_get_default_device
-    end function omp_get_default_device
-
-    function omp_get_num_devices() bind(c)
-      import
-      integer(kind=omp_integer_kind) :: omp_get_num_devices
-    end function omp_get_num_devices
-
-    function omp_get_device_num() bind(c)
-      import
-      integer(kind=omp_integer_kind) :: omp_get_device_num
-    end function omp_get_device_num
-
-    function omp_get_num_teams() bind(c)
-      import
-      integer(kind=omp_integer_kind) :: omp_get_num_teams
-    end function omp_get_num_teams
-
-    function omp_get_team_num() bind(c)
-      import
-      integer(kind=omp_integer_kind) :: omp_get_team_num
-    end function omp_get_team_num
-
-    function omp_is_initial_device() bind(c)
-      import
-      integer(kind=omp_logical_kind) :: omp_is_initial_device ! TODO: should this be LOGICAL?
-    end function omp_is_initial_device
-
-    function omp_get_initial_device() bind(c)
-      import
-      integer(kind=omp_integer_kind) :: omp_get_initial_device
-    end function omp_get_initial_device
-
-    function omp_get_max_task_priority() bind(c)
-      import
-      integer(kind=omp_integer_kind) :: omp_get_max_task_priority
-    end function omp_get_max_task_priority
-
-    function omp_pause_resource(kind, device_num) bind(c)
-      import
-      integer(kind=omp_pause_resource_kind), value :: kind
-      integer(kind=omp_integer_kind), value :: device_num
-      integer(kind=omp_integer_kind) :: omp_pause_resource
-    end function omp_pause_resource
-
-    function omp_pause_resource_all(kind) bind(c)
-      import
-      integer(kind=omp_pause_resource_kind), value :: kind
-      integer(kind=omp_integer_kind) :: omp_pause_resource_all
-    end function omp_pause_resource_all
-
-! Lock routines
-    subroutine omp_init_lock(lockvar) bind(c, name="omp_init_lock_")
-      import
-      integer(kind=omp_lock_kind), intent(out) :: lockvar
-    end subroutine omp_init_lock
-
-    subroutine omp_init_lock_with_hint(lockvar, hint) bind(c, name="omp_init_lock_with_hint_")
-      import
-      integer(kind=omp_lock_kind), intent(out) :: lockvar
-      integer(kind=omp_sync_hint_kind), value :: hint
-    end subroutine omp_init_lock_with_hint
-
-    subroutine omp_destroy_lock(lockvar) bind(c, name="omp_destroy_lock_")
-      import
-      integer(kind=omp_lock_kind), intent(inout) :: lockvar
-    end subroutine omp_destroy_lock
-
-    subroutine omp_set_lock(lockvar) bind(c, name="omp_set_lock_")
-      import
-      integer(kind=omp_lock_kind), intent(inout) :: lockvar
-    end subroutine omp_set_lock
-
-    subroutine omp_unset_lock(lockvar) bind(c, name="omp_unset_lock_")
-      import
-      integer(kind=omp_lock_kind), intent(inout) :: lockvar
-    end subroutine omp_unset_lock
-
-    function omp_test_lock(lockvar) bind(c, name="omp_test_lock_")
-      import
-      integer(kind=omp_lock_kind), intent(inout) :: lockvar
-      logical(kind=omp_logical_kind) :: omp_test_lock
-    end function omp_test_lock
-
-    subroutine omp_init_nest_lock(lockvar) bind(c, name="omp_init_nest_lock_")
-      import
-      integer(kind=omp_nest_lock_kind), intent(out) :: lockvar
-    end subroutine omp_init_nest_lock
-
-    subroutine omp_init_nest_lock_with_hint(lockvar, hint) bind(c, name="omp_init_nest_lock_with_hint_")
-      import
-      integer(kind=omp_nest_lock_kind), intent(out) :: lockvar
-      integer(kind=omp_sync_hint_kind), value :: hint
-    end subroutine omp_init_nest_lock_with_hint
-
-    subroutine omp_destroy_nest_lock(lockvar) bind(c, name="omp_destroy_nest_lock_")
-      import
-      integer(kind=omp_nest_lock_kind), intent(inout) :: lockvar
-    end subroutine omp_destroy_nest_lock
-
-    subroutine omp_set_nest_lock(lockvar) bind(c, name="omp_set_nest_lock_")
-      import
-      integer(kind=omp_nest_lock_kind), intent(inout) :: lockvar
-    end subroutine omp_set_nest_lock
-
-    subroutine omp_unset_nest_lock(lockvar) bind(c, name="omp_unset_nest_lock_")
-      import
-      integer(kind=omp_nest_lock_kind), intent(inout) :: lockvar
-    end subroutine omp_unset_nest_lock
-
-    function omp_test_nest_lock(lockvar) bind(c, name="omp_test_nest_lock_")
-      import
-      integer(kind=omp_integer_kind) :: omp_test_nest_lock
-      integer(kind=omp_nest_lock_kind), intent(inout) :: lockvar
-    end function omp_test_nest_lock
-
-! Timing routines
-    function omp_get_wtime() bind(c)
-      double precision omp_get_wtime
-    end function omp_get_wtime
-
-    function omp_get_wtick() bind(c)
-      double precision omp_get_wtick
-    end function omp_get_wtick
-
-! Event routine
-    subroutine omp_fullfill_event(event) bind(c) ! TODO: is this the correct spelling?
-      import
-      integer(kind=omp_event_handle_kind) :: event
-    end subroutine omp_fullfill_event
-
-! Device Memory Routines
-
-! Memory Management Routines
-    function omp_init_allocator(memspace, ntraits, traits) bind(c)
-      import
-      integer(kind=omp_memspace_handle_kind), value :: memspace
-      integer, value :: ntraits
-      type(omp_alloctrait), intent(in) :: traits(*)
-      integer(kind=omp_allocator_handle_kind) :: omp_init_allocator
-    end function omp_init_allocator
-
-    subroutine omp_destroy_allocator(allocator) bind(c)
-      import
-      integer(kind=omp_allocator_handle_kind), value :: allocator
-    end subroutine omp_destroy_allocator
-
-    subroutine omp_set_default_allocator(allocator) bind(c)
-      import
-      integer(kind=omp_allocator_handle_kind), value :: allocator
-    end subroutine omp_set_default_allocator
-
-    function omp_get_default_allocator() bind(c)
-      import
-      integer(kind=omp_allocator_handle_kind) :: omp_get_default_allocator
-    end function omp_get_default_allocator
-
-  end interface