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 * 1. Redistributions of source code must retain the above copyright notice, this
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 * 2. Redistributions in binary form must reproduce the above copyright notice,
 * this list of conditions and the following disclaimer in the documentation
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/*! \file
    \brief Contains code for debugging cutlass code
*/

#pragma once

#include "device_dump.h"

////////////////////////////////////////////////////////////////////////////////////////////////////

/******************************************************************************
 * Debug and logging macros
 ******************************************************************************/

/**
 * Formats and prints the given message to stdout
 */
#if !defined(CUDA_LOG)
#if !defined(__CUDA_ARCH__)
#define CUDA_LOG(format, ...) printf(format, __VA_ARGS__)
#else
#define CUDA_LOG(format, ...)                              \
  printf("[block (%d,%d,%d), thread (%d,%d,%d)]: " format, \
         blockIdx.x,                                       \
         blockIdx.y,                                       \
         blockIdx.z,                                       \
         threadIdx.x,                                      \
         threadIdx.y,                                      \
         threadIdx.z,                                      \
         __VA_ARGS__);
#endif
#endif

/**
 * Formats and prints the given message to stdout only if DEBUG is defined
 */
#if !defined(CUDA_LOG_DEBUG)
#ifdef DEBUG
#define CUDA_LOG_DEBUG(format, ...) CUDA_LOG(format, __VA_ARGS__)
#else
#define CUDA_LOG_DEBUG(format, ...)
#endif
#endif

/**
 * \brief The corresponding error message is printed to \p stderr (or \p stdout in device code)
 * along with the supplied source context.
 *
 * \return The CUDA error.
 */
__host__ CUTLASS_DEVICE cudaError_t cuda_perror_impl(cudaError_t error,
                                                     const char* expression,
                                                     const char* filename,
                                                     int line) {
  (void)filename;
  (void)line;
  if (error) {
#if !defined(__CUDA_ARCH__)
    fprintf(
        stderr, "CUDA error %d [%s, %d] in expression '%s': %s\n", error, filename, line, expression, cudaGetErrorString(error));
    fflush(stderr);
#else
    printf("CUDA error %d [%s, %d] in expression '%s'\n", error, filename, line, expression);
#endif
  }
  return error;
}

/**
 * \brief Perror macro
 */
#ifndef CUDA_PERROR
#define CUDA_PERROR(e) cuda_perror_impl((cudaError_t)(e), #e, __FILE__, __LINE__)
#endif

/**
 * \brief Perror macro with exit
 */
#ifndef CUDA_PERROR_EXIT
#define CUDA_PERROR_EXIT(e)                                     \
  do { if (cuda_perror_impl((cudaError_t)(e), #e, __FILE__, __LINE__)) { \
    exit(1);                                                    \
  } } while (0)
#endif

/**
 * \brief Perror macro only if DEBUG is defined
 */
#ifndef CUDA_PERROR_DEBUG
#ifdef DEBUG
#define CUDA_PERROR_DEBUG(e) CUDA_PERROR(e)
#else
#define CUDA_PERROR_DEBUG(e) (e)
#endif
#endif

////////////////////////////////////////////////////////////////////////////////////////////////////

// A small helper class to dump a type at compile time
// Usage:: DumpType<Class>::Class
template <typename T>
struct DebugType {};

template <typename T>
void DebugTypeFunc(T const& t) {
  T::t;
}

// A small helper class to dump a compile time constant at compile time
// Usage: DumpValue<Class::kConstant>::kConstant
template <int Value>
struct DebugValue {};
