File: time.h

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/*===---- time.h - OpenMP time header wrapper ------------------------ c ---===
 *
 * 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
 *
 *===-----------------------------------------------------------------------===
 */

#ifndef __CLANG_OPENMP_TIME_H__
#define __CLANG_OPENMP_TIME_H__

#ifndef _OPENMP
#error "This file is for OpenMP compilation only."
#endif

#if defined(__cplusplus)
#define __DEVICE__ static constexpr __attribute__((always_inline, nothrow))
#else
#define __DEVICE__ static __attribute__((always_inline, nothrow))
#endif

#include_next <time.h>

#pragma omp begin declare variant match(                                       \
    device = {arch(nvptx, nvptx64)}, implementation = {extension(match_any)})

__DEVICE__ clock_t clock() { return __nvvm_read_ptx_sreg_clock(); }

#pragma omp end declare variant

#endif