test/simd_cmp_impl.h

/*
 * Copyright (c) 2016, Alliance for Open Media. All rights reserved
 *
 * This source code is subject to the terms of the BSD 2 Clause License and
 * the Alliance for Open Media Patent License 1.0. If the BSD 2 Clause License
 * was not distributed with this source code in the LICENSE file, you can
 * obtain it at www.aomedia.org/license/software. If the Alliance for Open
 * Media Patent License 1.0 was not distributed with this source code in the
 * PATENTS file, you can obtain it at www.aomedia.org/license/patent.
*/

#include <assert.h>
#include <string>
#include "./aom_dsp_rtcd.h"
#include "test/acm_random.h"
#include "test/register_state_check.h"
#include "aom_dsp/aom_simd.h"
#include "aom_dsp/simd/v64_intrinsics_c.h"

// Machine tuned code goes into this file. This file is included from
// simd_cmp_sse2.cc, simd_cmp_ssse3.cc etc which define the macros
// ARCH (=neon, sse2, ssse3, etc), SIMD_NAMESPACE and ARCH_POSTFIX().

using libaom_test::ACMRandom;

namespace SIMD_NAMESPACE {

// Wrap templates around intrinsics using immediate values
template <int shift>
v64 imm_v64_shl_n_byte(v64 a) {
  return v64_shl_n_byte(a, shift);
}
template <int shift>
v64 imm_v64_shr_n_byte(v64 a) {
  return v64_shr_n_byte(a, shift);
}
template <int shift>
v64 imm_v64_shl_n_8(v64 a) {
  return v64_shl_n_8(a, shift);
}
template <int shift>
v64 imm_v64_shr_n_u8(v64 a) {
  return v64_shr_n_u8(a, shift);
}
template <int shift>
v64 imm_v64_shr_n_s8(v64 a) {
  return v64_shr_n_s8(a, shift);
}
template <int shift>
v64 imm_v64_shl_n_16(v64 a) {
  return v64_shl_n_16(a, shift);
}
template <int shift>
v64 imm_v64_shr_n_u16(v64 a) {
  return v64_shr_n_u16(a, shift);
}
template <int shift>
v64 imm_v64_shr_n_s16(v64 a) {
  return v64_shr_n_s16(a, shift);
}
template <int shift>
v64 imm_v64_shl_n_32(v64 a) {
  return v64_shl_n_32(a, shift);
}
template <int shift>
v64 imm_v64_shr_n_u32(v64 a) {
  return v64_shr_n_u32(a, shift);
}
template <int shift>
v64 imm_v64_shr_n_s32(v64 a) {
  return v64_shr_n_s32(a, shift);
}
template <int shift>
v64 imm_v64_align(v64 a, v64 b) {
  return v64_align(a, b, shift);
}

// Wrap templates around corresponding C implementations of the above
template <int shift>
c_v64 c_imm_v64_shl_n_byte(c_v64 a) {
  return c_v64_shl_n_byte(a, shift);
}
template <int shift>
c_v64 c_imm_v64_shr_n_byte(c_v64 a) {
  return c_v64_shr_n_byte(a, shift);
}
template <int shift>
c_v64 c_imm_v64_shl_n_8(c_v64 a) {
  return c_v64_shl_n_8(a, shift);
}
template <int shift>
c_v64 c_imm_v64_shr_n_u8(c_v64 a) {
  return c_v64_shr_n_u8(a, shift);
}
template <int shift>
c_v64 c_imm_v64_shr_n_s8(c_v64 a) {
  return c_v64_shr_n_s8(a, shift);
}
template <int shift>
c_v64 c_imm_v64_shl_n_16(c_v64 a) {
  return c_v64_shl_n_16(a, shift);
}
template <int shift>
c_v64 c_imm_v64_shr_n_u16(c_v64 a) {
  return c_v64_shr_n_u16(a, shift);
}
template <int shift>
c_v64 c_imm_v64_shr_n_s16(c_v64 a) {
  return c_v64_shr_n_s16(a, shift);
}
template <int shift>
c_v64 c_imm_v64_shl_n_32(c_v64 a) {
  return c_v64_shl_n_32(a, shift);
}
template <int shift>
c_v64 c_imm_v64_shr_n_u32(c_v64 a) {
  return c_v64_shr_n_u32(a, shift);
}
template <int shift>
c_v64 c_imm_v64_shr_n_s32(c_v64 a) {
  return c_v64_shr_n_s32(a, shift);
}
template <int shift>
c_v64 c_imm_v64_align(c_v64 a, c_v64 b) {
  return c_v64_align(a, b, shift);
}

// Wrappers around the the SAD and SSD functions
uint32_t v64_sad_u8(v64 a, v64 b) {
  return v64_sad_u8_sum(::v64_sad_u8(v64_sad_u8_init(), a, b));
}
uint32_t v64_ssd_u8(v64 a, v64 b) {
  return v64_ssd_u8_sum(::v64_ssd_u8(v64_ssd_u8_init(), a, b));
}

uint32_t c_v64_sad_u8(c_v64 a, c_v64 b) {
  return c_v64_sad_u8_sum(::c_v64_sad_u8(c_v64_sad_u8_init(), a, b));
}
uint32_t c_v64_ssd_u8(c_v64 a, c_v64 b) {
  return c_v64_ssd_u8_sum(::c_v64_ssd_u8(c_v64_ssd_u8_init(), a, b));
}

namespace {

#define MAP(name)                                           \
  {                                                         \
    (const void *const) #name, (const void *const)c_##name, \
        (const void *const)name                             \
  }

const void *const m[][3] = { MAP(v64_sad_u8),
                             MAP(v64_ssd_u8),
                             MAP(v64_add_8),
                             MAP(v64_add_16),
                             MAP(v64_sadd_s16),
                             MAP(v64_add_32),
                             MAP(v64_sub_8),
                             MAP(v64_ssub_u8),
                             MAP(v64_ssub_s8),
                             MAP(v64_sub_16),
                             MAP(v64_ssub_s16),
                             MAP(v64_sub_32),
                             MAP(v64_ziplo_8),
                             MAP(v64_ziphi_8),
                             MAP(v64_ziplo_16),
                             MAP(v64_ziphi_16),
                             MAP(v64_ziplo_32),
                             MAP(v64_ziphi_32),
                             MAP(v64_pack_s32_s16),
                             MAP(v64_pack_s16_u8),
                             MAP(v64_pack_s16_s8),
                             MAP(v64_unziphi_8),
                             MAP(v64_unziplo_8),
                             MAP(v64_unziphi_16),
                             MAP(v64_unziplo_16),
                             MAP(v64_or),
                             MAP(v64_xor),
                             MAP(v64_and),
                             MAP(v64_andn),
                             MAP(v64_mullo_s16),
                             MAP(v64_mulhi_s16),
                             MAP(v64_mullo_s32),
                             MAP(v64_madd_s16),
                             MAP(v64_madd_us8),
                             MAP(v64_avg_u8),
                             MAP(v64_rdavg_u8),
                             MAP(v64_avg_u16),
                             MAP(v64_min_u8),
                             MAP(v64_max_u8),
                             MAP(v64_min_s8),
                             MAP(v64_max_s8),
                             MAP(v64_min_s16),
                             MAP(v64_max_s16),
                             MAP(v64_cmpgt_s8),
                             MAP(v64_cmplt_s8),
                             MAP(v64_cmpeq_8),
                             MAP(v64_cmpgt_s16),
                             MAP(v64_cmplt_s16),
                             MAP(v64_cmpeq_16),
                             MAP(v64_shuffle_8),
                             MAP(imm_v64_align<1>),
                             MAP(imm_v64_align<2>),
                             MAP(imm_v64_align<3>),
                             MAP(imm_v64_align<4>),
                             MAP(imm_v64_align<5>),
                             MAP(imm_v64_align<6>),
                             MAP(imm_v64_align<7>),
                             MAP(v64_abs_s16),
                             MAP(v64_unpacklo_u8_s16),
                             MAP(v64_unpackhi_u8_s16),
                             MAP(v64_unpacklo_u16_s32),
                             MAP(v64_unpacklo_s16_s32),
                             MAP(v64_unpackhi_u16_s32),
                             MAP(v64_unpackhi_s16_s32),
                             MAP(imm_v64_shr_n_byte<1>),
                             MAP(imm_v64_shr_n_byte<2>),
                             MAP(imm_v64_shr_n_byte<3>),
                             MAP(imm_v64_shr_n_byte<4>),
                             MAP(imm_v64_shr_n_byte<5>),
                             MAP(imm_v64_shr_n_byte<6>),
                             MAP(imm_v64_shr_n_byte<7>),
                             MAP(imm_v64_shl_n_byte<1>),
                             MAP(imm_v64_shl_n_byte<2>),
                             MAP(imm_v64_shl_n_byte<3>),
                             MAP(imm_v64_shl_n_byte<4>),
                             MAP(imm_v64_shl_n_byte<5>),
                             MAP(imm_v64_shl_n_byte<6>),
                             MAP(imm_v64_shl_n_byte<7>),
                             MAP(imm_v64_shl_n_8<1>),
                             MAP(imm_v64_shl_n_8<2>),
                             MAP(imm_v64_shl_n_8<3>),
                             MAP(imm_v64_shl_n_8<4>),
                             MAP(imm_v64_shl_n_8<5>),
                             MAP(imm_v64_shl_n_8<6>),
                             MAP(imm_v64_shl_n_8<7>),
                             MAP(imm_v64_shr_n_u8<1>),
                             MAP(imm_v64_shr_n_u8<2>),
                             MAP(imm_v64_shr_n_u8<3>),
                             MAP(imm_v64_shr_n_u8<4>),
                             MAP(imm_v64_shr_n_u8<5>),
                             MAP(imm_v64_shr_n_u8<6>),
                             MAP(imm_v64_shr_n_u8<7>),
                             MAP(imm_v64_shr_n_s8<1>),
                             MAP(imm_v64_shr_n_s8<2>),
                             MAP(imm_v64_shr_n_s8<3>),
                             MAP(imm_v64_shr_n_s8<4>),
                             MAP(imm_v64_shr_n_s8<5>),
                             MAP(imm_v64_shr_n_s8<6>),
                             MAP(imm_v64_shr_n_s8<7>),
                             MAP(imm_v64_shl_n_16<1>),
                             MAP(imm_v64_shl_n_16<2>),
                             MAP(imm_v64_shl_n_16<4>),
                             MAP(imm_v64_shl_n_16<6>),
                             MAP(imm_v64_shl_n_16<8>),
                             MAP(imm_v64_shl_n_16<10>),
                             MAP(imm_v64_shl_n_16<12>),
                             MAP(imm_v64_shl_n_16<14>),
                             MAP(imm_v64_shr_n_u16<1>),
                             MAP(imm_v64_shr_n_u16<2>),
                             MAP(imm_v64_shr_n_u16<4>),
                             MAP(imm_v64_shr_n_u16<6>),
                             MAP(imm_v64_shr_n_u16<8>),
                             MAP(imm_v64_shr_n_u16<10>),
                             MAP(imm_v64_shr_n_u16<12>),
                             MAP(imm_v64_shr_n_u16<14>),
                             MAP(imm_v64_shr_n_s16<1>),
                             MAP(imm_v64_shr_n_s16<2>),
                             MAP(imm_v64_shr_n_s16<4>),
                             MAP(imm_v64_shr_n_s16<6>),
                             MAP(imm_v64_shr_n_s16<8>),
                             MAP(imm_v64_shr_n_s16<10>),
                             MAP(imm_v64_shr_n_s16<12>),
                             MAP(imm_v64_shr_n_s16<14>),
                             MAP(imm_v64_shl_n_32<1>),
                             MAP(imm_v64_shl_n_32<4>),
                             MAP(imm_v64_shl_n_32<8>),
                             MAP(imm_v64_shl_n_32<12>),
                             MAP(imm_v64_shl_n_32<16>),
                             MAP(imm_v64_shl_n_32<20>),
                             MAP(imm_v64_shl_n_32<24>),
                             MAP(imm_v64_shl_n_32<28>),
                             MAP(imm_v64_shr_n_u32<1>),
                             MAP(imm_v64_shr_n_u32<4>),
                             MAP(imm_v64_shr_n_u32<8>),
                             MAP(imm_v64_shr_n_u32<12>),
                             MAP(imm_v64_shr_n_u32<16>),
                             MAP(imm_v64_shr_n_u32<20>),
                             MAP(imm_v64_shr_n_u32<24>),
                             MAP(imm_v64_shr_n_u32<28>),
                             MAP(imm_v64_shr_n_s32<1>),
                             MAP(imm_v64_shr_n_s32<4>),
                             MAP(imm_v64_shr_n_s32<8>),
                             MAP(imm_v64_shr_n_s32<12>),
                             MAP(imm_v64_shr_n_s32<16>),
                             MAP(imm_v64_shr_n_s32<20>),
                             MAP(imm_v64_shr_n_s32<24>),
                             MAP(imm_v64_shr_n_s32<28>),
                             MAP(v64_shl_8),
                             MAP(v64_shr_u8),
                             MAP(v64_shr_s8),
                             MAP(v64_shl_16),
                             MAP(v64_shr_u16),
                             MAP(v64_shr_s16),
                             MAP(v64_shl_32),
                             MAP(v64_shr_u32),
                             MAP(v64_shr_s32),
                             MAP(v64_hadd_u8),
                             MAP(v64_hadd_s16),
                             MAP(v64_dotp_s16),
                             { NULL, NULL, NULL } };
#undef MAP

// Map reference functions to machine tuned functions. Since the
// functions depend on machine tuned types, the non-machine tuned
// instantiations of the test can't refer to these functions directly,
// so we refer to them by name and do the mapping here.
void Map(const char *name, const void **ref, const void **simd) {
  unsigned int i;
  for (i = 0; m[i][0] && strcmp(name, reinterpret_cast<const char *>(m[i][0]));
       i++) {
  }

  *ref = m[i][1];
  *simd = m[i][2];
}

// Used for printing errors in TestSimd1Arg and TestSimd2Args
std::string Print(const uint8_t *a, int size) {
  std::string text = "0x";
  for (int i = 0; i < size; i++) {
    char buf[3];
    snprintf(buf, sizeof(buf), "%02x",
             a[!CONFIG_BIG_ENDIAN ? size - 1 - i : i]);
    text += buf;
  }

  return text;
}

// Used in TestSimd1Arg and TestSimd2Args to restrict argument ranges
void SetMask(uint8_t *s, int size, uint32_t mask, uint32_t maskwidth) {
  switch (maskwidth) {
    case 0: {
      break;
    }
    case 8: {
      for (int i = 0; i < size; i++) s[i] &= mask;
      break;
    }
    case 16: {
      uint16_t *t = reinterpret_cast<uint16_t *>(s);
      assert(!(reinterpret_cast<uintptr_t>(s) & 1));
      for (int i = 0; i < size / 2; i++) t[i] &= mask;
      break;
    }
    case 32: {
      uint32_t *t = reinterpret_cast<uint32_t *>(s);
      assert(!(reinterpret_cast<uintptr_t>(s) & 3));
      for (int i = 0; i < size / 4; i++) t[i] &= mask;
      break;
    }
    case 64: {
      uint64_t *t = reinterpret_cast<uint64_t *>(s);
      assert(!(reinterpret_cast<uintptr_t>(s) & 7));
      for (int i = 0; i < size / 8; i++) t[i] &= mask;
      break;
    }
    default: {
      FAIL() << "Unsupported mask width";
      break;
    }
  }
}

// We need a store function for uint64_t
void u64_store_aligned(void *p, uint64_t a) {
  v64_store_aligned(p, v64_from_64(a));
}

void c_u64_store_aligned(void *p, uint64_t a) {
  c_v64_store_aligned(p, c_v64_from_64(a));
}

// CompareSimd1Arg and CompareSimd2Args compare intrinsics taking 1 or
// 2 arguments respectively with their corresponding C reference.
// Ideally, the loads and stores should have gone into the template
// parameter list, but v64 and v128 could be typedef'ed to the same
// type (which is the case on x86) and then we can't instantiate both
// v64 and v128, so the function return and argument types, including
// the always differing types in the C equivalent are used instead.
// The function arguments must be void pointers and then go through a
// cast to avoid matching errors in the branches eliminated by the
// typeid tests in the calling function.
template <typename Ret, typename Arg, typename CRet, typename CArg>
int CompareSimd1Arg(const void *store, const void *load, const void *simd,
                    void *d, const void *c_store, const void *c_load,
                    const void *c_simd, void *ref_d, const void *a) {
  void (*const my_store)(void *, Ret) = (void (*const)(void *, Ret))store;
  Arg (*const my_load)(const void *) = (Arg(*const)(const void *))load;
  Ret (*const my_simd)(Arg) = (Ret(*const)(Arg))simd;
  void (*const my_c_store)(void *, CRet) = (void (*const)(void *, CRet))c_store;
  CArg (*const my_c_load)(const void *) = (CArg(*const)(const void *))c_load;
  CRet (*const my_c_simd)(CArg) = (CRet(*const)(CArg))c_simd;

  // Call reference and intrinsic
  ASM_REGISTER_STATE_CHECK(my_c_store(ref_d, my_c_simd(my_c_load(a))));
  ASM_REGISTER_STATE_CHECK(my_store(d, my_simd(my_load(a))));

  // Compare results
  return memcmp(ref_d, d, sizeof(CRet));
}

template <typename Ret, typename Arg1, typename Arg2, typename CRet,
          typename CArg1, typename CArg2>
int CompareSimd2Args(const void *store, const void *load1, const void *load2,
                     const void *simd, void *d, const void *c_store,
                     const void *c_load1, const void *c_load2,
                     const void *c_simd, void *ref_d, const void *a,
                     const void *b) {
  void (*const my_store)(void *, Ret) = (void (*const)(void *, Ret))store;
  Arg1 (*const my_load1)(const void *) = (Arg1(*const)(const void *))load1;
  Arg2 (*const my_load2)(const void *) = (Arg2(*const)(const void *))load2;
  Ret (*const my_simd)(Arg1, Arg2) = (Ret(*const)(Arg1, Arg2))simd;
  void (*const my_c_store)(void *, CRet) = (void (*const)(void *, CRet))c_store;
  CArg1 (*const my_c_load1)(const void *) =
      (CArg1(*const)(const void *))c_load1;
  CArg2 (*const my_c_load2)(const void *) =
      (CArg2(*const)(const void *))c_load2;
  CRet (*const my_c_simd)(CArg1, CArg2) = (CRet(*const)(CArg1, CArg2))c_simd;

  // Call reference and intrinsic
  ASM_REGISTER_STATE_CHECK(
      my_c_store(ref_d, my_c_simd(my_c_load1(a), my_c_load2(b))));
  ASM_REGISTER_STATE_CHECK(my_store(d, my_simd(my_load1(a), my_load2(b))));

  // Compare results
  return memcmp(ref_d, d, sizeof(CRet));
}

template <typename CRet, typename CArg>
void TestSimd1Arg(uint32_t iterations, uint32_t mask, uint32_t maskwidth,
                  const char *name) {
  ACMRandom rnd(ACMRandom::DeterministicSeed());
  const void *ref_simd;
  const void *simd;
  int error = 0;
  DECLARE_ALIGNED(sizeof(CArg), uint16_t, s[sizeof(CArg) / sizeof(uint16_t)]);
  DECLARE_ALIGNED(sizeof(CRet), uint8_t, d[sizeof(CRet)]);
  DECLARE_ALIGNED(sizeof(CRet), uint8_t, ref_d[sizeof(CRet)]);
  memset(ref_d, 0, sizeof(ref_d));
  memset(d, 0, sizeof(d));

  Map(name, &ref_simd, &simd);
  if (simd == NULL || ref_simd == NULL) {
    FAIL() << "Internal error: Unknown intrinsic function " << name;
  }

  for (unsigned int count = 0; count < iterations && !error; count++) {
    for (unsigned int c = 0; c < sizeof(CArg) / sizeof(uint16_t); c++)
      s[c] = rnd.Rand16();

    if (maskwidth) {
      SetMask(reinterpret_cast<uint8_t *>(s), sizeof(CArg), mask, maskwidth);
    }

    if (typeid(CRet) == typeid(c_v64) && typeid(CArg) == typeid(c_v64)) {
      // V64_V64
      error = CompareSimd1Arg<v64, v64, CRet, CArg>(
          reinterpret_cast<const void *>(v64_store_aligned),
          (const void *)v64_load_aligned, simd, d,
          reinterpret_cast<const void *>(c_v64_store_aligned),
          reinterpret_cast<const void *>(c_v64_load_aligned), ref_simd, ref_d,
          s);
    } else if (typeid(CRet) == typeid(uint64_t) &&
               typeid(CArg) == typeid(c_v64)) {
      // U64_V64
      error = CompareSimd1Arg<uint64_t, v64, CRet, CArg>(
          reinterpret_cast<const void *>(u64_store_aligned),
          reinterpret_cast<const void *>(v64_load_aligned), simd, d,
          reinterpret_cast<const void *>(c_v64_store_aligned),
          reinterpret_cast<const void *>(c_v64_load_aligned), ref_simd, ref_d,
          s);
    } else if (typeid(CRet) == typeid(int64_t) &&
               typeid(CArg) == typeid(c_v64)) {
      // S64_V64
      error = CompareSimd1Arg<int64_t, v64, CRet, CArg>(
          reinterpret_cast<const void *>(u64_store_aligned),
          reinterpret_cast<const void *>(v64_load_aligned), simd, d,
          reinterpret_cast<const void *>(c_v64_store_aligned),
          reinterpret_cast<const void *>(c_v64_load_aligned), ref_simd, ref_d,
          s);
    } else {
      FAIL() << "Internal error: Unknown intrinsic function "
             << typeid(CRet).name() << " " << name << "(" << typeid(CArg).name()
             << ")";
    }
  }

  EXPECT_EQ(0, error) << "Error: mismatch for " << name << "("
                      << Print((uint8_t *)s, sizeof(s)) << ") -> "
                      << Print(d, sizeof(d)) << " (simd), "
                      << Print(ref_d, sizeof(ref_d)) << " (ref)";
}

template <typename CRet, typename CArg1, typename CArg2>
void TestSimd2Args(uint32_t iterations, uint32_t mask, uint32_t maskwidth,
                   const char *name) {
  ACMRandom rnd(ACMRandom::DeterministicSeed());
  const void *ref_simd;
  const void *simd;
  int error = 0;
  DECLARE_ALIGNED(sizeof(CArg1), uint16_t,
                  s1[sizeof(CArg1) / sizeof(uint16_t)]);
  DECLARE_ALIGNED(sizeof(CArg2), uint16_t,
                  s2[sizeof(CArg2) / sizeof(uint16_t)]);
  DECLARE_ALIGNED(sizeof(CRet), uint8_t, d[sizeof(CRet)]);
  DECLARE_ALIGNED(sizeof(CRet), uint8_t, ref_d[sizeof(CRet)]);
  memset(ref_d, 0, sizeof(ref_d));
  memset(d, 0, sizeof(d));

  Map(name, &ref_simd, &simd);
  if (simd == NULL || ref_simd == NULL) {
    FAIL() << "Internal error: Unknown intrinsic function " << name;
  }

  for (unsigned int count = 0; count < iterations && !error; count++) {
    for (unsigned int c = 0; c < sizeof(CArg1) / sizeof(uint16_t); c++)
      s1[c] = rnd.Rand16();

    for (unsigned int c = 0; c < sizeof(CArg2) / sizeof(uint16_t); c++)
      s2[c] = rnd.Rand16();

    if (maskwidth)
      SetMask(reinterpret_cast<uint8_t *>(s2), sizeof(CArg2), mask, maskwidth);

    if (typeid(CRet) == typeid(c_v64) && typeid(CArg1) == typeid(c_v64) &&
        typeid(CArg2) == typeid(c_v64)) {
      // V64_V64V64
      error = CompareSimd2Args<v64, v64, v64, CRet, CArg1, CArg2>(
          reinterpret_cast<const void *>(v64_store_aligned),
          reinterpret_cast<const void *>(v64_load_aligned),
          reinterpret_cast<const void *>(v64_load_aligned), simd, d,
          reinterpret_cast<const void *>(c_v64_store_aligned),
          reinterpret_cast<const void *>(c_v64_load_aligned),
          reinterpret_cast<const void *>(c_v64_load_aligned),
          reinterpret_cast<const void *>(ref_simd), ref_d, s1, s2);
    } else if (typeid(CRet) == typeid(uint32_t) &&
               typeid(CArg1) == typeid(c_v64) &&
               typeid(CArg2) == typeid(c_v64)) {
      // U32_V64V64
      error = CompareSimd2Args<uint32_t, v64, v64, CRet, CArg1, CArg2>(
          reinterpret_cast<const void *>(u32_store_aligned),
          reinterpret_cast<const void *>(v64_load_aligned),
          reinterpret_cast<const void *>(v64_load_aligned), simd, d,
          reinterpret_cast<const void *>(c_u32_store_aligned),
          reinterpret_cast<const void *>(c_v64_load_aligned),
          reinterpret_cast<const void *>(c_v64_load_aligned),
          reinterpret_cast<const void *>(ref_simd), ref_d, s1, s2);
    } else if (typeid(CRet) == typeid(int64_t) &&
               typeid(CArg1) == typeid(c_v64) &&
               typeid(CArg2) == typeid(c_v64)) {
      // S64_V64V64
      error = CompareSimd2Args<int64_t, v64, v64, CRet, CArg1, CArg2>(
          reinterpret_cast<const void *>(u64_store_aligned),
          reinterpret_cast<const void *>(v64_load_aligned),
          reinterpret_cast<const void *>(v64_load_aligned), simd, d,
          reinterpret_cast<const void *>(c_u64_store_aligned),
          reinterpret_cast<const void *>(c_v64_load_aligned),
          reinterpret_cast<const void *>(c_v64_load_aligned),
          reinterpret_cast<const void *>(ref_simd), ref_d, s1, s2);
    } else if (typeid(CRet) == typeid(c_v64) &&
               typeid(CArg1) == typeid(c_v64) &&
               typeid(CArg2) == typeid(uint32_t)) {
      // V64_V64U32
      error = CompareSimd2Args<v64, v64, uint32_t, CRet, CArg1, CArg2>(
          reinterpret_cast<const void *>(v64_store_aligned),
          reinterpret_cast<const void *>(v64_load_aligned),
          reinterpret_cast<const void *>(u32_load_aligned), simd, d,
          reinterpret_cast<const void *>(c_v64_store_aligned),
          reinterpret_cast<const void *>(c_v64_load_aligned),
          reinterpret_cast<const void *>(c_u32_load_aligned),
          reinterpret_cast<const void *>(ref_simd), ref_d, s1, s2);
    } else {
      FAIL() << "Internal error: Unknown intrinsic function "
             << typeid(CRet).name() << " " << name << "("
             << typeid(CArg1).name() << ", " << typeid(CArg2).name() << ")";
    }
  }

  EXPECT_EQ(0, error) << "Error: mismatch for " << name << "("
                      << Print(reinterpret_cast<uint8_t *>(s1), sizeof(s1))
                      << ", "
                      << Print(reinterpret_cast<uint8_t *>(s2), sizeof(s2))
                      << ") -> " << Print(d, sizeof(d)) << " (simd), "
                      << Print(ref_d, sizeof(ref_d)) << " (ref)";
}

// Instantiations to make the functions callable from another files
template void TestSimd1Arg<c_v64, c_v64>(uint32_t, uint32_t, uint32_t,
                                         const char *);
template void TestSimd1Arg<int64_t, c_v64>(uint32_t, uint32_t, uint32_t,
                                           const char *);
template void TestSimd1Arg<uint64_t, c_v64>(uint32_t, uint32_t, uint32_t,
                                            const char *);
template void TestSimd2Args<c_v64, c_v64, c_v64>(uint32_t, uint32_t, uint32_t,
                                                 const char *);
template void TestSimd2Args<c_v64, c_v64, uint32_t>(uint32_t, uint32_t,
                                                    uint32_t, const char *);
template void TestSimd2Args<int64_t, c_v64, c_v64>(uint32_t, uint32_t, uint32_t,
                                                   const char *);
template void TestSimd2Args<uint32_t, c_v64, c_v64>(uint32_t, uint32_t,
                                                    uint32_t, const char *);

}  // namespace
}  // namespace SIMD_NAMESPACE