llvm/clang/test/Headers/Inputs/include/omp.h

#ifndef __OMP_H
#define __OMP_H

#if _OPENMP
// Follows the pattern in interface.h
// Clang sema checks this type carefully, needs to closely match that from omp.h
typedef enum omp_allocator_handle_t {
  omp_null_allocator = 0,
  omp_default_mem_alloc = 1,
  omp_large_cap_mem_alloc = 2,
  omp_const_mem_alloc = 3,
  omp_high_bw_mem_alloc = 4,
  omp_low_lat_mem_alloc = 5,
  omp_cgroup_mem_alloc = 6,
  omp_pteam_mem_alloc = 7,
  omp_thread_mem_alloc = 8,
  KMP_ALLOCATOR_MAX_HANDLE = ~(0U)
} omp_allocator_handle_t;
#endif

#endif