rocm-systems/catch/unit/math/remainder_and_rounding_funcs.cc

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*/

#include "unary_common.hh"
#include "binary_common.hh"
#include "math_remainder_rounding_negative_kernels_rtc.hh"

MATH_BINARY_WITHIN_ULP_TEST_DEF(fmod, std::fmod, 0, 0)
TEST_CASE("Unit_Device_fmod_fmodf_Negative_RTC") { NegativeTestRTCWrapper<8>(kFmod); }

MATH_BINARY_WITHIN_ULP_TEST_DEF(remainder, std::remainder, 0, 0)
TEST_CASE("Unit_Device_remainder_remainder_Negative_RTC") { NegativeTestRTCWrapper<8>(kRemainder); }

MATH_BINARY_WITHIN_ULP_TEST_DEF(fdim, std::fdim, 0, 0)
TEST_CASE("Unit_Device_fdim_fdimf_Negative_RTC") { NegativeTestRTCWrapper<8>(kFdim); }

MATH_UNARY_WITHIN_ULP_TEST_DEF(trunc, std::trunc, 0, 0)
TEST_CASE("Unit_Device_trunc_truncf_Negative_RTC") { NegativeTestRTCWrapper<4>(kTrunc); }

MATH_UNARY_WITHIN_ULP_TEST_DEF(round, std::round, 0, 0)
TEST_CASE("Unit_Device_round_roundf_Negative_RTC") { NegativeTestRTCWrapper<4>(kRound); }

MATH_UNARY_WITHIN_ULP_TEST_DEF(rint, std::rint, 0, 0)
TEST_CASE("Unit_Device_rint_rintf_Negative_RTC") { NegativeTestRTCWrapper<4>(kRint); }

MATH_UNARY_WITHIN_ULP_TEST_DEF(nearbyint, std::nearbyint, 0, 0)
TEST_CASE("Unit_Device_nearbyint_nearbyintf_Negative_RTC") {
  NegativeTestRTCWrapper<4>(kNearbyint);
}

MATH_UNARY_WITHIN_ULP_TEST_DEF(ceil, std::ceil, 0, 0)
TEST_CASE("Unit_Device_ceil_ceilf_Negative_RTC") { NegativeTestRTCWrapper<4>(kCeil); }

MATH_UNARY_WITHIN_ULP_TEST_DEF(floor, std::floor, 0, 0)
TEST_CASE("Unit_Device_floor_floorf_Negative_RTC") { NegativeTestRTCWrapper<4>(kFloor); }


#define LONG_CONVERSION_FUNCTION_TEST_DEF(kern_name, ref_func, lt)                                 \
  MATH_UNARY_KERNEL_DEF(kern_name)                                                                 \
                                                                                                   \
  TEST_CASE("Unit_Device_" #kern_name "_Accuracy_Positive - float") {                              \
    lt (*ref)(double) = ref_func;                                                                  \
    UnarySinglePrecisionRangeTest(kern_name##_kernel<float, lt>, ref,                              \
                                  EqValidatorBuilderFactory<lt>(),                                 \
                                  static_cast<float>(std::numeric_limits<lt>::lowest()),           \
                                  static_cast<float>(std::numeric_limits<lt>::max()));             \
  }                                                                                                \
                                                                                                   \
  TEST_CASE("Unit_Device_" #kern_name "_Accuracy_Positive - double") {                             \
    lt (*ref)(long double) = ref_func;                                                             \
    UnaryDoublePrecisionBruteForceTest(kern_name##_kernel<double, lt>, ref,                        \
                                       EqValidatorBuilderFactory<lt>(),                            \
                                       static_cast<double>(std::numeric_limits<lt>::lowest()),     \
                                       static_cast<double>(std::numeric_limits<lt>::max()));       \
  }

LONG_CONVERSION_FUNCTION_TEST_DEF(lrint, std::lrint, long)
TEST_CASE("Unit_Device_lrint_lrintf_Negative_RTC") { NegativeTestRTCWrapper<4>(kLrint); }

LONG_CONVERSION_FUNCTION_TEST_DEF(lround, std::lround, long)
TEST_CASE("Unit_Device_lround_lroundf_Negative_RTC") { NegativeTestRTCWrapper<4>(kLround); }

LONG_CONVERSION_FUNCTION_TEST_DEF(llrint, std::llrint, long long)
TEST_CASE("Unit_Device_llrint_llrintf_Negative_RTC") { NegativeTestRTCWrapper<4>(kLlrint); }

LONG_CONVERSION_FUNCTION_TEST_DEF(llround, std::llround, long long)
TEST_CASE("Unit_Device_llround_llroundf_Negative_RTC") { NegativeTestRTCWrapper<4>(kLlround); }


template <typename T>
__global__ void remquo_kernel(std::pair<T, int>* const ys, const size_t num_xs, T* const x1s,
                              T* const x2s) {
  const auto tid = cg::this_grid().thread_rank();
  const auto stride = cg::this_grid().size();

  for (auto i = tid; i < num_xs; i += stride) {
    if constexpr (std::is_same_v<float, T>) {
      ys[i].first = remquof(x1s[i], x2s[i], &ys[i].second);
    } else if constexpr (std::is_same_v<double, T>) {
      ys[i].first = remquo(x1s[i], x2s[i], &ys[i].second);
    }
  }
}

template <typename T> std::pair<T, int> remquo_wrapper(T x1, T x2) {
  std::pair<T, int> ret;
  ret.first = std::remquo(x1, x2, &ret.second);
  return ret;
}

TEMPLATE_TEST_CASE("Unit_Device_remquo_Accuracy_Positive", "", float, double) {
  using RT = RefType_t<TestType>;
  std::pair<RT, int> (*ref)(RT, RT) = remquo_wrapper;
  const auto ulp_builder = ULPValidatorBuilderFactory<TestType>(0);
  const auto eq_builder = EqValidatorBuilderFactory<int>();

  BinaryFloatingPointTest(remquo_kernel<TestType>, ref,
                          PairValidatorBuilderFactory<TestType, int>(ulp_builder, eq_builder));
}

TEST_CASE("Unit_Device_remquo_remquof_Negative_RTC") { NegativeTestRTCWrapper<24>(kRemquo); }

template <typename T>
__global__ void modf_kernel(std::pair<T, T>* const ys, const size_t num_xs, T* const xs) {
  const auto tid = cg::this_grid().thread_rank();
  const auto stride = cg::this_grid().size();

  for (auto i = tid; i < num_xs; i += stride) {
    if constexpr (std::is_same_v<float, T>) {
      ys[i].first = modff(xs[i], &ys[i].second);
    } else if constexpr (std::is_same_v<double, T>) {
      ys[i].first = modf(xs[i], &ys[i].second);
    }
  }
}

template <typename T> std::pair<T, T> modf_wrapper(T x) {
  std::pair<T, T> ret;
  ret.first = std::modf(x, &ret.second);
  return ret;
}

TEST_CASE("Unit_Device_modf_Accuracy_Positive - float") {
  UnarySinglePrecisionTest(
      modf_kernel<float>, modf_wrapper<double>,
      PairValidatorBuilderFactory<float>(ULPValidatorBuilderFactory<float>(0)));
}

TEST_CASE("Unit_Device_modf_Accuracy_Positive - double") {
  UnaryDoublePrecisionTest(
      modf_kernel<double>, modf_wrapper<long double>,
      PairValidatorBuilderFactory<double>(ULPValidatorBuilderFactory<double>(0)));
}

TEST_CASE("Unit_Device_modf_modff_Negative_RTC") { NegativeTestRTCWrapper<20>(kModf); }