/*

   BLIS
   An object-based framework for developing high-performance BLAS-like
   libraries.

   Copyright (C) 2019, The University of Texas at Austin

   Redistribution and use in source and binary forms, with or without
   modification, are permitted provided that the following conditions are
   met:
    - Redistributions of source code must retain the above copyright
      notice, this list of conditions and the following disclaimer.
    - Redistributions in binary form must reproduce the above copyright
      notice, this list of conditions and the following disclaimer in the
      documentation and/or other materials provided with the distribution.
    - Neither the name(s) of the copyright holder(s) nor the names of its
      contributors may be used to endorse or promote products derived
      from this software without specific prior written permission.

   THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
   "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
   LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
   A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
   HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
   SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
   LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
   DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
   THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
   (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
   OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

*/

/*
  NOTE: The following code is based on [1].

  [1] https://github.com/jeffhammond/nwchem-tce-triples-kernels/blob/master/src/pragma_vendor.h
*/

#ifndef BLIS_PRAGMA_MACRO_DEFS_H
#define BLIS_PRAGMA_MACRO_DEFS_H

// Generally speaking, if BLIS_ENABLE_PRAGMA_OMP_SIMD is set, then we define
// all instances of PRAGMA_SIMD as _Pragma("omp simd").

#ifdef BLIS_ENABLE_PRAGMA_OMP_SIMD
  #define PRAGMA_OMP_SIMD _Pragma("omp simd")
#else
  #define PRAGMA_OMP_SIMD
#endif

// Require ISO C99 or later for SIMD-related pragmas.
#if (( __STDC_VERSION__ >= 199901L ))

  #define GEN_PRAGMA(x) _Pragma(#x)

  #if   defined(__ICC) || defined(__INTEL_COMPILER)

    // Intel icc.
    //#define PRAGMA_SIMD  GEN_PRAGMA(simd)
    #define PRAGMA_SIMD  PRAGMA_OMP_SIMD

  #elif defined(__clang__)

    // clang/llvm.
    #define PRAGMA_SIMD  PRAGMA_OMP_SIMD

  #elif defined(__GNUC__)

    // GNU gcc.
    #define PRAGMA_SIMD  PRAGMA_OMP_SIMD

  #else

    // Unknown compiler.
    #define PRAGMA_SIMD

  #endif
#endif

#endif