xref: /freebsd/lib/libomp/omp.h (revision f81cdf24ba5436367377f7c8e8f51f6df2a75ca7)
1 /*
2  * include/omp.h.var
3  */
4 
5 
6 //===----------------------------------------------------------------------===//
7 //
8 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
9 // See https://llvm.org/LICENSE.txt for license information.
10 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
11 //
12 //===----------------------------------------------------------------------===//
13 
14 
15 #ifndef __OMP_H
16 #   define __OMP_H
17 
18 #   include <stdlib.h>
19 #   include <stdint.h>
20 
21 #   define KMP_VERSION_MAJOR    5
22 #   define KMP_VERSION_MINOR    0
23 #   define KMP_VERSION_BUILD    20140926
24 #   define KMP_BUILD_DATE       "No_Timestamp"
25 
26 #   ifdef __cplusplus
27     extern "C" {
28 #   endif
29 
30 #   define omp_set_affinity_format   ompc_set_affinity_format
31 #   define omp_get_affinity_format   ompc_get_affinity_format
32 #   define omp_display_affinity      ompc_display_affinity
33 #   define omp_capture_affinity      ompc_capture_affinity
34 
35 #   if defined(_WIN32)
36 #       define __KAI_KMPC_CONVENTION __cdecl
37 #       ifndef __KMP_IMP
38 #           define __KMP_IMP __declspec(dllimport)
39 #       endif
40 #   else
41 #       define __KAI_KMPC_CONVENTION
42 #       ifndef __KMP_IMP
43 #           define __KMP_IMP
44 #       endif
45 #   endif
46 
47     /* schedule kind constants */
48     typedef enum omp_sched_t {
49         omp_sched_static  = 1,
50         omp_sched_dynamic = 2,
51         omp_sched_guided  = 3,
52         omp_sched_auto    = 4,
53         omp_sched_monotonic = 0x80000000
54     } omp_sched_t;
55 
56     /* set API functions */
57     extern void   __KAI_KMPC_CONVENTION  omp_set_num_threads (int);
58     extern void   __KAI_KMPC_CONVENTION  omp_set_dynamic     (int);
59     extern void   __KAI_KMPC_CONVENTION  omp_set_nested      (int);
60     extern void   __KAI_KMPC_CONVENTION  omp_set_max_active_levels (int);
61     extern void   __KAI_KMPC_CONVENTION  omp_set_schedule          (omp_sched_t, int);
62 
63     /* query API functions */
64     extern int    __KAI_KMPC_CONVENTION  omp_get_num_threads  (void);
65     extern int    __KAI_KMPC_CONVENTION  omp_get_dynamic      (void);
66     extern int    __KAI_KMPC_CONVENTION  omp_get_nested       (void);
67     extern int    __KAI_KMPC_CONVENTION  omp_get_max_threads  (void);
68     extern int    __KAI_KMPC_CONVENTION  omp_get_thread_num   (void);
69     extern int    __KAI_KMPC_CONVENTION  omp_get_num_procs    (void);
70     extern int    __KAI_KMPC_CONVENTION  omp_in_parallel      (void);
71     extern int    __KAI_KMPC_CONVENTION  omp_in_final         (void);
72     extern int    __KAI_KMPC_CONVENTION  omp_get_active_level        (void);
73     extern int    __KAI_KMPC_CONVENTION  omp_get_level               (void);
74     extern int    __KAI_KMPC_CONVENTION  omp_get_ancestor_thread_num (int);
75     extern int    __KAI_KMPC_CONVENTION  omp_get_team_size           (int);
76     extern int    __KAI_KMPC_CONVENTION  omp_get_thread_limit        (void);
77     extern int    __KAI_KMPC_CONVENTION  omp_get_max_active_levels   (void);
78     extern void   __KAI_KMPC_CONVENTION  omp_get_schedule            (omp_sched_t *, int *);
79     extern int    __KAI_KMPC_CONVENTION  omp_get_max_task_priority   (void);
80 
81     /* lock API functions */
82     typedef struct omp_lock_t {
83         void * _lk;
84     } omp_lock_t;
85 
86     extern void   __KAI_KMPC_CONVENTION  omp_init_lock    (omp_lock_t *);
87     extern void   __KAI_KMPC_CONVENTION  omp_set_lock     (omp_lock_t *);
88     extern void   __KAI_KMPC_CONVENTION  omp_unset_lock   (omp_lock_t *);
89     extern void   __KAI_KMPC_CONVENTION  omp_destroy_lock (omp_lock_t *);
90     extern int    __KAI_KMPC_CONVENTION  omp_test_lock    (omp_lock_t *);
91 
92     /* nested lock API functions */
93     typedef struct omp_nest_lock_t {
94         void * _lk;
95     } omp_nest_lock_t;
96 
97     extern void   __KAI_KMPC_CONVENTION  omp_init_nest_lock    (omp_nest_lock_t *);
98     extern void   __KAI_KMPC_CONVENTION  omp_set_nest_lock     (omp_nest_lock_t *);
99     extern void   __KAI_KMPC_CONVENTION  omp_unset_nest_lock   (omp_nest_lock_t *);
100     extern void   __KAI_KMPC_CONVENTION  omp_destroy_nest_lock (omp_nest_lock_t *);
101     extern int    __KAI_KMPC_CONVENTION  omp_test_nest_lock    (omp_nest_lock_t *);
102 
103     /* OpenMP 5.0  Synchronization hints*/
104     typedef enum omp_sync_hint_t {
105         omp_sync_hint_none           = 0,
106         omp_lock_hint_none           = omp_sync_hint_none,
107         omp_sync_hint_uncontended    = 1,
108         omp_lock_hint_uncontended    = omp_sync_hint_uncontended,
109         omp_sync_hint_contended      = (1<<1),
110         omp_lock_hint_contended      = omp_sync_hint_contended,
111         omp_sync_hint_nonspeculative = (1<<2),
112         omp_lock_hint_nonspeculative = omp_sync_hint_nonspeculative,
113         omp_sync_hint_speculative    = (1<<3),
114         omp_lock_hint_speculative    = omp_sync_hint_speculative,
115         kmp_lock_hint_hle            = (1<<16),
116         kmp_lock_hint_rtm            = (1<<17),
117         kmp_lock_hint_adaptive       = (1<<18)
118     } omp_sync_hint_t;
119 
120     /* lock hint type for dynamic user lock */
121     typedef omp_sync_hint_t omp_lock_hint_t;
122 
123     /* hinted lock initializers */
124     extern void __KAI_KMPC_CONVENTION omp_init_lock_with_hint(omp_lock_t *, omp_lock_hint_t);
125     extern void __KAI_KMPC_CONVENTION omp_init_nest_lock_with_hint(omp_nest_lock_t *, omp_lock_hint_t);
126 
127     /* time API functions */
128     extern double __KAI_KMPC_CONVENTION  omp_get_wtime (void);
129     extern double __KAI_KMPC_CONVENTION  omp_get_wtick (void);
130 
131     /* OpenMP 4.0 */
132     extern int  __KAI_KMPC_CONVENTION  omp_get_default_device (void);
133     extern void __KAI_KMPC_CONVENTION  omp_set_default_device (int);
134     extern int  __KAI_KMPC_CONVENTION  omp_is_initial_device (void);
135     extern int  __KAI_KMPC_CONVENTION  omp_get_num_devices (void);
136     extern int  __KAI_KMPC_CONVENTION  omp_get_num_teams (void);
137     extern int  __KAI_KMPC_CONVENTION  omp_get_team_num (void);
138     extern int  __KAI_KMPC_CONVENTION  omp_get_cancellation (void);
139 
140     /* OpenMP 4.5 */
141     extern int   __KAI_KMPC_CONVENTION  omp_get_initial_device (void);
142     extern void* __KAI_KMPC_CONVENTION  omp_target_alloc(size_t, int);
143     extern void  __KAI_KMPC_CONVENTION  omp_target_free(void *, int);
144     extern int   __KAI_KMPC_CONVENTION  omp_target_is_present(const void *, int);
145     extern int   __KAI_KMPC_CONVENTION  omp_target_memcpy(void *, const void *, size_t, size_t, size_t, int, int);
146     extern int   __KAI_KMPC_CONVENTION  omp_target_memcpy_rect(void *, const void *, size_t, int, const size_t *,
147                                             const size_t *, const size_t *, const size_t *, const size_t *, int, int);
148     extern int   __KAI_KMPC_CONVENTION  omp_target_associate_ptr(const void *, const void *, size_t, size_t, int);
149     extern int   __KAI_KMPC_CONVENTION  omp_target_disassociate_ptr(const void *, int);
150 
151     /* OpenMP 5.0 */
152     extern int   __KAI_KMPC_CONVENTION  omp_get_device_num (void);
153     typedef void * omp_depend_t;
154 
155     /* OpenMP 5.1 interop */
156     typedef intptr_t omp_intptr_t;
157 
158     /* 0..omp_get_num_interop_properties()-1 are reserved for implementation-defined properties */
159     typedef enum omp_interop_property {
160         omp_ipr_fr_id = -1,
161         omp_ipr_fr_name = -2,
162         omp_ipr_vendor = -3,
163         omp_ipr_vendor_name = -4,
164         omp_ipr_device_num = -5,
165         omp_ipr_platform = -6,
166         omp_ipr_device = -7,
167         omp_ipr_device_context = -8,
168         omp_ipr_targetsync = -9,
169         omp_ipr_first = -9
170     } omp_interop_property_t;
171 
172     #define omp_interop_none 0
173 
174     typedef enum omp_interop_rc {
175         omp_irc_no_value = 1,
176         omp_irc_success = 0,
177         omp_irc_empty = -1,
178         omp_irc_out_of_range = -2,
179         omp_irc_type_int = -3,
180         omp_irc_type_ptr = -4,
181         omp_irc_type_str = -5,
182         omp_irc_other = -6
183     } omp_interop_rc_t;
184 
185     typedef enum omp_interop_fr {
186         omp_ifr_cuda = 1,
187         omp_ifr_cuda_driver = 2,
188         omp_ifr_opencl = 3,
189         omp_ifr_sycl = 4,
190         omp_ifr_hip = 5,
191         omp_ifr_level_zero = 6,
192         omp_ifr_last = 7
193     } omp_interop_fr_t;
194 
195     typedef void * omp_interop_t;
196 
197     /*!
198      * The `omp_get_num_interop_properties` routine retrieves the number of implementation-defined properties available for an `omp_interop_t` object.
199      */
200     extern int          __KAI_KMPC_CONVENTION  omp_get_num_interop_properties(const omp_interop_t);
201     /*!
202      * The `omp_get_interop_int` routine retrieves an integer property from an `omp_interop_t` object.
203      */
204     extern omp_intptr_t __KAI_KMPC_CONVENTION  omp_get_interop_int(const omp_interop_t, omp_interop_property_t, int *);
205     /*!
206      * The `omp_get_interop_ptr` routine retrieves a pointer property from an `omp_interop_t` object.
207      */
208     extern void *       __KAI_KMPC_CONVENTION  omp_get_interop_ptr(const omp_interop_t, omp_interop_property_t, int *);
209     /*!
210      * The `omp_get_interop_str` routine retrieves a string property from an `omp_interop_t` object.
211      */
212     extern const char * __KAI_KMPC_CONVENTION  omp_get_interop_str(const omp_interop_t, omp_interop_property_t, int *);
213     /*!
214      * The `omp_get_interop_name` routine retrieves a property name from an `omp_interop_t` object.
215      */
216     extern const char * __KAI_KMPC_CONVENTION  omp_get_interop_name(const omp_interop_t, omp_interop_property_t);
217     /*!
218      * The `omp_get_interop_type_desc` routine retrieves a description of the type of a property associated with an `omp_interop_t` object.
219      */
220     extern const char * __KAI_KMPC_CONVENTION  omp_get_interop_type_desc(const omp_interop_t, omp_interop_property_t);
221     /*!
222      * The `omp_get_interop_rc_desc` routine retrieves a description of the return code associated with an `omp_interop_t` object.
223      */
224     extern const char * __KAI_KMPC_CONVENTION  omp_get_interop_rc_desc(const omp_interop_t, omp_interop_rc_t);
225 
226     /* OpenMP 5.1 device memory routines */
227 
228     /*!
229      * The `omp_target_memcpy_async` routine asynchronously performs a copy between any combination of host and device pointers.
230      */
231     extern int    __KAI_KMPC_CONVENTION  omp_target_memcpy_async(void *, const void *, size_t, size_t, size_t, int,
232                                              int, int, omp_depend_t *);
233     /*!
234      * The `omp_target_memcpy_rect_async` routine asynchronously performs a copy between any combination of host and device pointers.
235      */
236     extern int    __KAI_KMPC_CONVENTION  omp_target_memcpy_rect_async(void *, const void *, size_t, int, const size_t *,
237                                              const size_t *, const size_t *, const size_t *, const size_t *, int, int,
238                                              int, omp_depend_t *);
239     /*!
240      * The `omp_get_mapped_ptr` routine returns the device pointer that is associated with a host pointer for a given device.
241      */
242     extern void * __KAI_KMPC_CONVENTION  omp_get_mapped_ptr(const void *, int);
243     extern int    __KAI_KMPC_CONVENTION  omp_target_is_accessible(const void *, size_t, int);
244 
245     /* kmp API functions */
246     extern int    __KAI_KMPC_CONVENTION  kmp_get_stacksize          (void);
247     extern void   __KAI_KMPC_CONVENTION  kmp_set_stacksize          (int);
248     extern size_t __KAI_KMPC_CONVENTION  kmp_get_stacksize_s        (void);
249     extern void   __KAI_KMPC_CONVENTION  kmp_set_stacksize_s        (size_t);
250     extern int    __KAI_KMPC_CONVENTION  kmp_get_blocktime          (void);
251     extern int    __KAI_KMPC_CONVENTION  kmp_get_library            (void);
252     extern void   __KAI_KMPC_CONVENTION  kmp_set_blocktime          (int);
253     extern void   __KAI_KMPC_CONVENTION  kmp_set_library            (int);
254     extern void   __KAI_KMPC_CONVENTION  kmp_set_library_serial     (void);
255     extern void   __KAI_KMPC_CONVENTION  kmp_set_library_turnaround (void);
256     extern void   __KAI_KMPC_CONVENTION  kmp_set_library_throughput (void);
257     extern void   __KAI_KMPC_CONVENTION  kmp_set_defaults           (char const *);
258     extern void   __KAI_KMPC_CONVENTION  kmp_set_disp_num_buffers   (int);
259 
260     /* Intel affinity API */
261     typedef void * kmp_affinity_mask_t;
262 
263     extern int    __KAI_KMPC_CONVENTION  kmp_set_affinity             (kmp_affinity_mask_t *);
264     extern int    __KAI_KMPC_CONVENTION  kmp_get_affinity             (kmp_affinity_mask_t *);
265     extern int    __KAI_KMPC_CONVENTION  kmp_get_affinity_max_proc    (void);
266     extern void   __KAI_KMPC_CONVENTION  kmp_create_affinity_mask     (kmp_affinity_mask_t *);
267     extern void   __KAI_KMPC_CONVENTION  kmp_destroy_affinity_mask    (kmp_affinity_mask_t *);
268     extern int    __KAI_KMPC_CONVENTION  kmp_set_affinity_mask_proc   (int, kmp_affinity_mask_t *);
269     extern int    __KAI_KMPC_CONVENTION  kmp_unset_affinity_mask_proc (int, kmp_affinity_mask_t *);
270     extern int    __KAI_KMPC_CONVENTION  kmp_get_affinity_mask_proc   (int, kmp_affinity_mask_t *);
271 
272     /* OpenMP 4.0 affinity API */
273     typedef enum omp_proc_bind_t {
274         omp_proc_bind_false = 0,
275         omp_proc_bind_true = 1,
276         omp_proc_bind_master = 2,
277         omp_proc_bind_close = 3,
278         omp_proc_bind_spread = 4
279     } omp_proc_bind_t;
280 
281     extern omp_proc_bind_t __KAI_KMPC_CONVENTION omp_get_proc_bind (void);
282 
283     /* OpenMP 4.5 affinity API */
284     extern int  __KAI_KMPC_CONVENTION omp_get_num_places (void);
285     extern int  __KAI_KMPC_CONVENTION omp_get_place_num_procs (int);
286     extern void __KAI_KMPC_CONVENTION omp_get_place_proc_ids (int, int *);
287     extern int  __KAI_KMPC_CONVENTION omp_get_place_num (void);
288     extern int  __KAI_KMPC_CONVENTION omp_get_partition_num_places (void);
289     extern void __KAI_KMPC_CONVENTION omp_get_partition_place_nums (int *);
290 
291     extern void * __KAI_KMPC_CONVENTION  kmp_malloc  (size_t);
292     extern void * __KAI_KMPC_CONVENTION  kmp_aligned_malloc  (size_t, size_t);
293     extern void * __KAI_KMPC_CONVENTION  kmp_calloc  (size_t, size_t);
294     extern void * __KAI_KMPC_CONVENTION  kmp_realloc (void *, size_t);
295     extern void   __KAI_KMPC_CONVENTION  kmp_free    (void *);
296 
297     extern void   __KAI_KMPC_CONVENTION  kmp_set_warnings_on(void);
298     extern void   __KAI_KMPC_CONVENTION  kmp_set_warnings_off(void);
299 
300     /* OpenMP 5.0 Tool Control */
301     typedef enum omp_control_tool_result_t {
302         omp_control_tool_notool = -2,
303         omp_control_tool_nocallback = -1,
304         omp_control_tool_success = 0,
305         omp_control_tool_ignored = 1
306     } omp_control_tool_result_t;
307 
308     typedef enum omp_control_tool_t {
309         omp_control_tool_start = 1,
310         omp_control_tool_pause = 2,
311         omp_control_tool_flush = 3,
312         omp_control_tool_end = 4
313     } omp_control_tool_t;
314 
315     extern int __KAI_KMPC_CONVENTION omp_control_tool(int, int, void*);
316 
317     /* OpenMP 5.0 Memory Management */
318     typedef uintptr_t omp_uintptr_t;
319 
320     typedef enum {
321         omp_atk_sync_hint = 1,
322         omp_atk_alignment = 2,
323         omp_atk_access = 3,
324         omp_atk_pool_size = 4,
325         omp_atk_fallback = 5,
326         omp_atk_fb_data = 6,
327         omp_atk_pinned = 7,
328         omp_atk_partition = 8
329     } omp_alloctrait_key_t;
330 
331     typedef enum {
332         omp_atv_false = 0,
333         omp_atv_true = 1,
334         omp_atv_contended = 3,
335         omp_atv_uncontended = 4,
336         omp_atv_serialized = 5,
337         omp_atv_sequential = omp_atv_serialized, // (deprecated)
338         omp_atv_private = 6,
339         omp_atv_all = 7,
340         omp_atv_thread = 8,
341         omp_atv_pteam = 9,
342         omp_atv_cgroup = 10,
343         omp_atv_default_mem_fb = 11,
344         omp_atv_null_fb = 12,
345         omp_atv_abort_fb = 13,
346         omp_atv_allocator_fb = 14,
347         omp_atv_environment = 15,
348         omp_atv_nearest = 16,
349         omp_atv_blocked = 17,
350         omp_atv_interleaved = 18
351     } omp_alloctrait_value_t;
352     #define omp_atv_default ((omp_uintptr_t)-1)
353 
354     typedef struct {
355         omp_alloctrait_key_t key;
356         omp_uintptr_t value;
357     } omp_alloctrait_t;
358 
359 #   if defined(_WIN32)
360     // On Windows cl and icl do not support 64-bit enum, let's use integer then.
361     typedef omp_uintptr_t omp_allocator_handle_t;
362     extern __KMP_IMP omp_allocator_handle_t const omp_null_allocator;
363     extern __KMP_IMP omp_allocator_handle_t const omp_default_mem_alloc;
364     extern __KMP_IMP omp_allocator_handle_t const omp_large_cap_mem_alloc;
365     extern __KMP_IMP omp_allocator_handle_t const omp_const_mem_alloc;
366     extern __KMP_IMP omp_allocator_handle_t const omp_high_bw_mem_alloc;
367     extern __KMP_IMP omp_allocator_handle_t const omp_low_lat_mem_alloc;
368     extern __KMP_IMP omp_allocator_handle_t const omp_cgroup_mem_alloc;
369     extern __KMP_IMP omp_allocator_handle_t const omp_pteam_mem_alloc;
370     extern __KMP_IMP omp_allocator_handle_t const omp_thread_mem_alloc;
371     extern __KMP_IMP omp_allocator_handle_t const llvm_omp_target_host_mem_alloc;
372     extern __KMP_IMP omp_allocator_handle_t const llvm_omp_target_shared_mem_alloc;
373     extern __KMP_IMP omp_allocator_handle_t const llvm_omp_target_device_mem_alloc;
374 
375     typedef omp_uintptr_t omp_memspace_handle_t;
376     extern __KMP_IMP omp_memspace_handle_t const omp_default_mem_space;
377     extern __KMP_IMP omp_memspace_handle_t const omp_large_cap_mem_space;
378     extern __KMP_IMP omp_memspace_handle_t const omp_const_mem_space;
379     extern __KMP_IMP omp_memspace_handle_t const omp_high_bw_mem_space;
380     extern __KMP_IMP omp_memspace_handle_t const omp_low_lat_mem_space;
381     extern __KMP_IMP omp_memspace_handle_t const llvm_omp_target_host_mem_space;
382     extern __KMP_IMP omp_memspace_handle_t const llvm_omp_target_shared_mem_space;
383     extern __KMP_IMP omp_memspace_handle_t const llvm_omp_target_device_mem_space;
384 #   else
385 #       if __cplusplus >= 201103
386     typedef enum omp_allocator_handle_t : omp_uintptr_t
387 #       else
388     typedef enum omp_allocator_handle_t
389 #       endif
390     {
391       omp_null_allocator = 0,
392       omp_default_mem_alloc = 1,
393       omp_large_cap_mem_alloc = 2,
394       omp_const_mem_alloc = 3,
395       omp_high_bw_mem_alloc = 4,
396       omp_low_lat_mem_alloc = 5,
397       omp_cgroup_mem_alloc = 6,
398       omp_pteam_mem_alloc = 7,
399       omp_thread_mem_alloc = 8,
400       llvm_omp_target_host_mem_alloc = 100,
401       llvm_omp_target_shared_mem_alloc = 101,
402       llvm_omp_target_device_mem_alloc = 102,
403       KMP_ALLOCATOR_MAX_HANDLE = UINTPTR_MAX
404     } omp_allocator_handle_t;
405 #       if __cplusplus >= 201103
406     typedef enum omp_memspace_handle_t : omp_uintptr_t
407 #       else
408     typedef enum omp_memspace_handle_t
409 #       endif
410     {
411       omp_default_mem_space = 0,
412       omp_large_cap_mem_space = 1,
413       omp_const_mem_space = 2,
414       omp_high_bw_mem_space = 3,
415       omp_low_lat_mem_space = 4,
416       llvm_omp_target_host_mem_space = 100,
417       llvm_omp_target_shared_mem_space = 101,
418       llvm_omp_target_device_mem_space = 102,
419       KMP_MEMSPACE_MAX_HANDLE = UINTPTR_MAX
420     } omp_memspace_handle_t;
421 #   endif
422     extern omp_allocator_handle_t __KAI_KMPC_CONVENTION omp_init_allocator(omp_memspace_handle_t m,
423                                                        int ntraits, omp_alloctrait_t traits[]);
424     extern void __KAI_KMPC_CONVENTION omp_destroy_allocator(omp_allocator_handle_t allocator);
425 
426     extern void __KAI_KMPC_CONVENTION omp_set_default_allocator(omp_allocator_handle_t a);
427     extern omp_allocator_handle_t __KAI_KMPC_CONVENTION omp_get_default_allocator(void);
428 #   ifdef __cplusplus
429     extern void *__KAI_KMPC_CONVENTION omp_alloc(size_t size, omp_allocator_handle_t a = omp_null_allocator);
430     extern void *__KAI_KMPC_CONVENTION omp_aligned_alloc(size_t align, size_t size,
431                                                          omp_allocator_handle_t a = omp_null_allocator);
432     extern void *__KAI_KMPC_CONVENTION omp_calloc(size_t nmemb, size_t size,
433                                                   omp_allocator_handle_t a = omp_null_allocator);
434     extern void *__KAI_KMPC_CONVENTION omp_aligned_calloc(size_t align, size_t nmemb, size_t size,
435                                                           omp_allocator_handle_t a = omp_null_allocator);
436     extern void *__KAI_KMPC_CONVENTION omp_realloc(void *ptr, size_t size,
437                                                    omp_allocator_handle_t allocator = omp_null_allocator,
438                                                    omp_allocator_handle_t free_allocator = omp_null_allocator);
439     extern void __KAI_KMPC_CONVENTION omp_free(void * ptr, omp_allocator_handle_t a = omp_null_allocator);
440 #   else
441     extern void *__KAI_KMPC_CONVENTION omp_alloc(size_t size, omp_allocator_handle_t a);
442     extern void *__KAI_KMPC_CONVENTION omp_aligned_alloc(size_t align, size_t size,
443                                                          omp_allocator_handle_t a);
444     extern void *__KAI_KMPC_CONVENTION omp_calloc(size_t nmemb, size_t size, omp_allocator_handle_t a);
445     extern void *__KAI_KMPC_CONVENTION omp_aligned_calloc(size_t align, size_t nmemb, size_t size,
446                                                           omp_allocator_handle_t a);
447     extern void *__KAI_KMPC_CONVENTION omp_realloc(void *ptr, size_t size, omp_allocator_handle_t allocator,
448                                                    omp_allocator_handle_t free_allocator);
449     extern void __KAI_KMPC_CONVENTION omp_free(void *ptr, omp_allocator_handle_t a);
450 #   endif
451 
452     /* OpenMP 5.0 Affinity Format */
453     extern void __KAI_KMPC_CONVENTION omp_set_affinity_format(char const *);
454     extern size_t __KAI_KMPC_CONVENTION omp_get_affinity_format(char *, size_t);
455     extern void __KAI_KMPC_CONVENTION omp_display_affinity(char const *);
456     extern size_t __KAI_KMPC_CONVENTION omp_capture_affinity(char *, size_t, char const *);
457 
458     /* OpenMP 5.0 events */
459 #   if defined(_WIN32)
460     // On Windows cl and icl do not support 64-bit enum, let's use integer then.
461     typedef omp_uintptr_t omp_event_handle_t;
462 #   else
463     typedef enum omp_event_handle_t { KMP_EVENT_MAX_HANDLE = UINTPTR_MAX } omp_event_handle_t;
464 #   endif
465     extern void __KAI_KMPC_CONVENTION omp_fulfill_event ( omp_event_handle_t event );
466 
467     /* OpenMP 5.0 Pause Resources */
468     typedef enum omp_pause_resource_t {
469       omp_pause_resume = 0,
470       omp_pause_soft = 1,
471       omp_pause_hard = 2
472     } omp_pause_resource_t;
473     extern int __KAI_KMPC_CONVENTION omp_pause_resource(omp_pause_resource_t, int);
474     extern int __KAI_KMPC_CONVENTION omp_pause_resource_all(omp_pause_resource_t);
475 
476     extern int __KAI_KMPC_CONVENTION omp_get_supported_active_levels(void);
477 
478     /* OpenMP 5.1 */
479     extern void __KAI_KMPC_CONVENTION omp_set_num_teams(int num_teams);
480     extern int __KAI_KMPC_CONVENTION omp_get_max_teams(void);
481     extern void __KAI_KMPC_CONVENTION omp_set_teams_thread_limit(int limit);
482     extern int __KAI_KMPC_CONVENTION omp_get_teams_thread_limit(void);
483 
484     /* OpenMP 5.1 Display Environment */
485     extern void omp_display_env(int verbose);
486 
487 #   if defined(_OPENMP) && _OPENMP >= 201811
488     #pragma omp begin declare variant match(device={kind(host)})
489     static inline int omp_is_initial_device(void) { return 1; }
490     #pragma omp end declare variant
491     #pragma omp begin declare variant match(device={kind(nohost)})
492     static inline int omp_is_initial_device(void) { return 0; }
493     #pragma omp end declare variant
494 #   endif
495 
496     /* OpenMP 5.2 */
497     extern int __KAI_KMPC_CONVENTION omp_in_explicit_task(void);
498 
499     /* LLVM Extensions */
500     extern void *llvm_omp_target_dynamic_shared_alloc();
501 
502 #   undef __KAI_KMPC_CONVENTION
503 #   undef __KMP_IMP
504 
505     /* Warning:
506        The following typedefs are not standard, deprecated and will be removed in a future release.
507     */
508     typedef int     omp_int_t;
509     typedef double  omp_wtime_t;
510 
511 #   ifdef __cplusplus
512     }
513 #   endif
514 
515 #endif /* __OMP_H */
516