Added emhash by ktprime to external benchmarks. Very fast iteration and lookups.

1 files changed, 0 insertions, 663 deletions

diff --git a/benchmarks/external/parallel_hashmap/phmap_bits.h b/benchmarks/external/parallel_hashmap/phmap_bits.h
deleted file mode 100644
index 6b765fff..00000000
--- a/benchmarks/external/parallel_hashmap/phmap_bits.h
+++ /dev/null
@@ -1,663 +0,0 @@
-#if !defined(phmap_bits_h_guard_)
-#define phmap_bits_h_guard_
-
-// ---------------------------------------------------------------------------
-// Copyright (c) 2019, Gregory Popovitch - [email protected]
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//      https://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-//
-// Includes work from abseil-cpp (https://github.com/abseil/abseil-cpp)
-// with modifications.
-// 
-// Copyright 2018 The Abseil Authors.
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//      https://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-// ---------------------------------------------------------------------------
-
-// The following guarantees declaration of the byte swap functions
-#ifdef _MSC_VER
-    #include <stdlib.h>  // NOLINT(build/include)
-#elif defined(__APPLE__)
-    // Mac OS X / Darwin features
-    #include <libkern/OSByteOrder.h>
-#elif defined(__FreeBSD__)
-    #include <sys/endian.h>
-#elif defined(__GLIBC__)
-    #include <byteswap.h>  // IWYU pragma: export
-#endif
-
-#include <string.h>
-#include <cstdint>
-#include "phmap_config.h"
-
-#ifdef _MSC_VER
-    #pragma warning(push)  
-    #pragma warning(disable : 4514) // unreferenced inline function has been removed
-#endif
-
-// -----------------------------------------------------------------------------
-// unaligned APIs
-// -----------------------------------------------------------------------------
-// Portable handling of unaligned loads, stores, and copies.
-// On some platforms, like ARM, the copy functions can be more efficient
-// then a load and a store.
-// -----------------------------------------------------------------------------
-
-#if defined(ADDRESS_SANITIZER) || defined(THREAD_SANITIZER) ||\
-    defined(MEMORY_SANITIZER)
-#include <stdint.h>
-
-extern "C" {
-    uint16_t __sanitizer_unaligned_load16(const void *p);
-    uint32_t __sanitizer_unaligned_load32(const void *p);
-    uint64_t __sanitizer_unaligned_load64(const void *p);
-    void __sanitizer_unaligned_store16(void *p, uint16_t v);
-    void __sanitizer_unaligned_store32(void *p, uint32_t v);
-    void __sanitizer_unaligned_store64(void *p, uint64_t v);
-}  // extern "C"
-
-namespace phmap {
-namespace bits {
-
-inline uint16_t UnalignedLoad16(const void *p) {
-  return __sanitizer_unaligned_load16(p);
-}
-
-inline uint32_t UnalignedLoad32(const void *p) {
-  return __sanitizer_unaligned_load32(p);
-}
-
-inline uint64_t UnalignedLoad64(const void *p) {
-  return __sanitizer_unaligned_load64(p);
-}
-
-inline void UnalignedStore16(void *p, uint16_t v) {
-  __sanitizer_unaligned_store16(p, v);
-}
-
-inline void UnalignedStore32(void *p, uint32_t v) {
-  __sanitizer_unaligned_store32(p, v);
-}
-
-inline void UnalignedStore64(void *p, uint64_t v) {
-  __sanitizer_unaligned_store64(p, v);
-}
-
-}  // namespace bits
-}  // namespace phmap
-
-#define PHMAP_INTERNAL_UNALIGNED_LOAD16(_p) (phmap::bits::UnalignedLoad16(_p))
-#define PHMAP_INTERNAL_UNALIGNED_LOAD32(_p) (phmap::bits::UnalignedLoad32(_p))
-#define PHMAP_INTERNAL_UNALIGNED_LOAD64(_p) (phmap::bits::UnalignedLoad64(_p))
-
-#define PHMAP_INTERNAL_UNALIGNED_STORE16(_p, _val) (phmap::bits::UnalignedStore16(_p, _val))
-#define PHMAP_INTERNAL_UNALIGNED_STORE32(_p, _val) (phmap::bits::UnalignedStore32(_p, _val))
-#define PHMAP_INTERNAL_UNALIGNED_STORE64(_p, _val) (phmap::bits::UnalignedStore64(_p, _val))
-
-#else
-
-namespace phmap {
-namespace bits {
-
-inline uint16_t UnalignedLoad16(const void *p) {
-  uint16_t t;
-  memcpy(&t, p, sizeof t);
-  return t;
-}
-
-inline uint32_t UnalignedLoad32(const void *p) {
-  uint32_t t;
-  memcpy(&t, p, sizeof t);
-  return t;
-}
-
-inline uint64_t UnalignedLoad64(const void *p) {
-  uint64_t t;
-  memcpy(&t, p, sizeof t);
-  return t;
-}
-
-inline void UnalignedStore16(void *p, uint16_t v) { memcpy(p, &v, sizeof v); }
-
-inline void UnalignedStore32(void *p, uint32_t v) { memcpy(p, &v, sizeof v); }
-
-inline void UnalignedStore64(void *p, uint64_t v) { memcpy(p, &v, sizeof v); }
-
-}  // namespace bits
-}  // namespace phmap
-
-#define PHMAP_INTERNAL_UNALIGNED_LOAD16(_p) (phmap::bits::UnalignedLoad16(_p))
-#define PHMAP_INTERNAL_UNALIGNED_LOAD32(_p) (phmap::bits::UnalignedLoad32(_p))
-#define PHMAP_INTERNAL_UNALIGNED_LOAD64(_p) (phmap::bits::UnalignedLoad64(_p))
-
-#define PHMAP_INTERNAL_UNALIGNED_STORE16(_p, _val) (phmap::bits::UnalignedStore16(_p, _val))
-#define PHMAP_INTERNAL_UNALIGNED_STORE32(_p, _val) (phmap::bits::UnalignedStore32(_p, _val))
-#define PHMAP_INTERNAL_UNALIGNED_STORE64(_p, _val) (phmap::bits::UnalignedStore64(_p, _val))
-
-#endif
-
-// -----------------------------------------------------------------------------
-// File: optimization.h
-// -----------------------------------------------------------------------------
-
-#if defined(__pnacl__)
-    #define PHMAP_BLOCK_TAIL_CALL_OPTIMIZATION() if (volatile int x = 0) { (void)x; }
-#elif defined(__clang__)
-    // Clang will not tail call given inline volatile assembly.
-    #define PHMAP_BLOCK_TAIL_CALL_OPTIMIZATION() __asm__ __volatile__("")
-#elif defined(__GNUC__)
-    // GCC will not tail call given inline volatile assembly.
-    #define PHMAP_BLOCK_TAIL_CALL_OPTIMIZATION() __asm__ __volatile__("")
-#elif defined(_MSC_VER)
-    #include <intrin.h>
-    // The __nop() intrinsic blocks the optimisation.
-    #define PHMAP_BLOCK_TAIL_CALL_OPTIMIZATION() __nop()
-#else
-    #define PHMAP_BLOCK_TAIL_CALL_OPTIMIZATION() if (volatile int x = 0) { (void)x; }
-#endif
-
-#if defined(__GNUC__)
-    #pragma GCC diagnostic push
-    #pragma GCC diagnostic ignored "-Wpedantic"
-#endif
-
-#ifdef PHMAP_HAVE_INTRINSIC_INT128
-    __extension__ typedef unsigned __int128 phmap_uint128;
-    inline uint64_t umul128(uint64_t a, uint64_t b, uint64_t* high) 
-    {
-        auto result = static_cast<phmap_uint128>(a) * static_cast<phmap_uint128>(b);
-        *high = static_cast<uint64_t>(result >> 64);
-        return static_cast<uint64_t>(result);
-    }
-    #define PHMAP_HAS_UMUL128 1
-#elif (defined(_MSC_VER))
-    #if defined(_M_X64)
-        #pragma intrinsic(_umul128)
-        inline uint64_t umul128(uint64_t a, uint64_t b, uint64_t* high) 
-        {
-            return _umul128(a, b, high);
-        }
-        #define PHMAP_HAS_UMUL128 1
-    #endif
-#endif
-
-#if defined(__GNUC__)
-    #pragma GCC diagnostic pop
-#endif
-
-#if defined(__GNUC__)
-    // Cache line alignment
-    #if defined(__i386__) || defined(__x86_64__)
-        #define PHMAP_CACHELINE_SIZE 64
-    #elif defined(__powerpc64__)
-        #define PHMAP_CACHELINE_SIZE 128
-    #elif defined(__aarch64__)
-        // We would need to read special register ctr_el0 to find out L1 dcache size.
-        // This value is a good estimate based on a real aarch64 machine.
-        #define PHMAP_CACHELINE_SIZE 64
-    #elif defined(__arm__)
-        // Cache line sizes for ARM: These values are not strictly correct since
-        // cache line sizes depend on implementations, not architectures.  There
-        // are even implementations with cache line sizes configurable at boot
-        // time.
-        #if defined(__ARM_ARCH_5T__)
-            #define PHMAP_CACHELINE_SIZE 32
-        #elif defined(__ARM_ARCH_7A__)
-            #define PHMAP_CACHELINE_SIZE 64
-        #endif
-    #endif
-
-    #ifndef PHMAP_CACHELINE_SIZE
-        // A reasonable default guess.  Note that overestimates tend to waste more
-        // space, while underestimates tend to waste more time.
-        #define PHMAP_CACHELINE_SIZE 64
-    #endif
-
-    #define PHMAP_CACHELINE_ALIGNED __attribute__((aligned(PHMAP_CACHELINE_SIZE)))
-#elif defined(_MSC_VER)
-    #define PHMAP_CACHELINE_SIZE 64
-    #define PHMAP_CACHELINE_ALIGNED __declspec(align(PHMAP_CACHELINE_SIZE))
-#else
-    #define PHMAP_CACHELINE_SIZE 64
-    #define PHMAP_CACHELINE_ALIGNED
-#endif
-
-
-#if PHMAP_HAVE_BUILTIN(__builtin_expect) || \
-    (defined(__GNUC__) && !defined(__clang__))
-    #define PHMAP_PREDICT_FALSE(x) (__builtin_expect(x, 0))
-    #define PHMAP_PREDICT_TRUE(x) (__builtin_expect(!!(x), 1))
-#else
-    #define PHMAP_PREDICT_FALSE(x) (x)
-    #define PHMAP_PREDICT_TRUE(x) (x)
-#endif
-
-// -----------------------------------------------------------------------------
-// File: bits.h
-// -----------------------------------------------------------------------------
-
-#if defined(_MSC_VER)
-    // We can achieve something similar to attribute((always_inline)) with MSVC by
-    // using the __forceinline keyword, however this is not perfect. MSVC is
-    // much less aggressive about inlining, and even with the __forceinline keyword.
-    #define PHMAP_BASE_INTERNAL_FORCEINLINE __forceinline
-#else
-    // Use default attribute inline.
-    #define PHMAP_BASE_INTERNAL_FORCEINLINE inline PHMAP_ATTRIBUTE_ALWAYS_INLINE
-#endif
-
-
-namespace phmap {
-namespace base_internal {
-
-PHMAP_BASE_INTERNAL_FORCEINLINE int CountLeadingZeros64Slow(uint64_t n) {
-    int zeroes = 60;
-    if (n >> 32) zeroes -= 32, n >>= 32;
-    if (n >> 16) zeroes -= 16, n >>= 16;
-    if (n >> 8) zeroes -= 8, n >>= 8;
-    if (n >> 4) zeroes -= 4, n >>= 4;
-    return "\4\3\2\2\1\1\1\1\0\0\0\0\0\0\0"[n] + zeroes;
-}
-
-PHMAP_BASE_INTERNAL_FORCEINLINE int CountLeadingZeros64(uint64_t n) {
-#if defined(_MSC_VER) && defined(_M_X64)
-    // MSVC does not have __buitin_clzll. Use _BitScanReverse64.
-    unsigned long result = 0;  // NOLINT(runtime/int)
-    if (_BitScanReverse64(&result, n)) {
-        return (int)(63 - result);
-    }
-    return 64;
-#elif defined(_MSC_VER) && !defined(__clang__)
-    // MSVC does not have __buitin_clzll. Compose two calls to _BitScanReverse
-    unsigned long result = 0;  // NOLINT(runtime/int)
-    if ((n >> 32) && _BitScanReverse(&result, (unsigned long)(n >> 32))) {
-        return 31 - result;
-    }
-    if (_BitScanReverse(&result, (unsigned long)n)) {
-        return 63 - result;
-    }
-    return 64;
-#elif defined(__GNUC__) || defined(__clang__)
-    // Use __builtin_clzll, which uses the following instructions:
-    //  x86: bsr
-    //  ARM64: clz
-    //  PPC: cntlzd
-    static_assert(sizeof(unsigned long long) == sizeof(n),  // NOLINT(runtime/int)
-                  "__builtin_clzll does not take 64-bit arg");
-
-    // Handle 0 as a special case because __builtin_clzll(0) is undefined.
-    if (n == 0) {
-        return 64;
-    }
-    return __builtin_clzll(n);
-#else
-    return CountLeadingZeros64Slow(n);
-#endif
-}
-
-PHMAP_BASE_INTERNAL_FORCEINLINE int CountLeadingZeros32Slow(uint64_t n) {
-    int zeroes = 28;
-    if (n >> 16) zeroes -= 16, n >>= 16;
-    if (n >> 8) zeroes -= 8, n >>= 8;
-    if (n >> 4) zeroes -= 4, n >>= 4;
-    return "\4\3\2\2\1\1\1\1\0\0\0\0\0\0\0"[n] + zeroes;
-}
-
-PHMAP_BASE_INTERNAL_FORCEINLINE int CountLeadingZeros32(uint32_t n) {
-#if defined(_MSC_VER) && !defined(__clang__)
-    unsigned long result = 0;  // NOLINT(runtime/int)
-    if (_BitScanReverse(&result, n)) {
-        return (int)(31 - result);
-    }
-    return 32;
-#elif defined(__GNUC__) || defined(__clang__)
-    // Use __builtin_clz, which uses the following instructions:
-    //  x86: bsr
-    //  ARM64: clz
-    //  PPC: cntlzd
-    static_assert(sizeof(int) == sizeof(n),
-                  "__builtin_clz does not take 32-bit arg");
-
-    // Handle 0 as a special case because __builtin_clz(0) is undefined.
-    if (n == 0) {
-        return 32;
-    }
-    return __builtin_clz(n);
-#else
-    return CountLeadingZeros32Slow(n);
-#endif
-}
-
-PHMAP_BASE_INTERNAL_FORCEINLINE int CountTrailingZerosNonZero64Slow(uint64_t n) {
-    int c = 63;
-    n &= ~n + 1;
-    if (n & 0x00000000FFFFFFFF) c -= 32;
-    if (n & 0x0000FFFF0000FFFF) c -= 16;
-    if (n & 0x00FF00FF00FF00FF) c -= 8;
-    if (n & 0x0F0F0F0F0F0F0F0F) c -= 4;
-    if (n & 0x3333333333333333) c -= 2;
-    if (n & 0x5555555555555555) c -= 1;
-    return c;
-}
-
-PHMAP_BASE_INTERNAL_FORCEINLINE int CountTrailingZerosNonZero64(uint64_t n) {
-#if defined(_MSC_VER) && !defined(__clang__) && defined(_M_X64)
-    unsigned long result = 0;  // NOLINT(runtime/int)
-    _BitScanForward64(&result, n);
-    return (int)result;
-#elif defined(_MSC_VER) && !defined(__clang__)
-    unsigned long result = 0;  // NOLINT(runtime/int)
-    if (static_cast<uint32_t>(n) == 0) {
-        _BitScanForward(&result, (unsigned long)(n >> 32));
-        return result + 32;
-    }
-    _BitScanForward(&result, (unsigned long)n);
-    return result;
-#elif defined(__GNUC__) || defined(__clang__)
-    static_assert(sizeof(unsigned long long) == sizeof(n),  // NOLINT(runtime/int)
-                  "__builtin_ctzll does not take 64-bit arg");
-    return __builtin_ctzll(n);
-#else
-    return CountTrailingZerosNonZero64Slow(n);
-#endif
-}
-
-PHMAP_BASE_INTERNAL_FORCEINLINE int CountTrailingZerosNonZero32Slow(uint32_t n) {
-    int c = 31;
-    n &= ~n + 1;
-    if (n & 0x0000FFFF) c -= 16;
-    if (n & 0x00FF00FF) c -= 8;
-    if (n & 0x0F0F0F0F) c -= 4;
-    if (n & 0x33333333) c -= 2;
-    if (n & 0x55555555) c -= 1;
-    return c;
-}
-
-PHMAP_BASE_INTERNAL_FORCEINLINE int CountTrailingZerosNonZero32(uint32_t n) {
-#if defined(_MSC_VER) && !defined(__clang__)
-    unsigned long result = 0;  // NOLINT(runtime/int)
-    _BitScanForward(&result, n);
-    return (int)result;
-#elif defined(__GNUC__) || defined(__clang__)
-    static_assert(sizeof(int) == sizeof(n),
-                  "__builtin_ctz does not take 32-bit arg");
-    return __builtin_ctz(n);
-#else
-    return CountTrailingZerosNonZero32Slow(n);
-#endif
-}
-
-#undef PHMAP_BASE_INTERNAL_FORCEINLINE
-
-}  // namespace base_internal
-}  // namespace phmap
-
-// -----------------------------------------------------------------------------
-// File: endian.h
-// -----------------------------------------------------------------------------
-
-namespace phmap {
-
-// Use compiler byte-swapping intrinsics if they are available.  32-bit
-// and 64-bit versions are available in Clang and GCC as of GCC 4.3.0.
-// The 16-bit version is available in Clang and GCC only as of GCC 4.8.0.
-// For simplicity, we enable them all only for GCC 4.8.0 or later.
-#if defined(__clang__) || \
-    (defined(__GNUC__) && \
-     ((__GNUC__ == 4 && __GNUC_MINOR__ >= 8) || __GNUC__ >= 5))
-
-    inline uint64_t gbswap_64(uint64_t host_int) {
-        return __builtin_bswap64(host_int);
-    }
-    inline uint32_t gbswap_32(uint32_t host_int) {
-        return __builtin_bswap32(host_int);
-    }
-    inline uint16_t gbswap_16(uint16_t host_int) {
-        return __builtin_bswap16(host_int);
-    }
-
-#elif defined(_MSC_VER)
-
-    inline uint64_t gbswap_64(uint64_t host_int) {
-        return _byteswap_uint64(host_int);
-    }
-    inline uint32_t gbswap_32(uint32_t host_int) {
-        return _byteswap_ulong(host_int);
-    }
-    inline uint16_t gbswap_16(uint16_t host_int) {
-        return _byteswap_ushort(host_int);
-    }
-
-#elif defined(__APPLE__)
-
-    inline uint64_t gbswap_64(uint64_t host_int) { return OSSwapInt16(host_int); }
-    inline uint32_t gbswap_32(uint32_t host_int) { return OSSwapInt32(host_int); }
-    inline uint16_t gbswap_16(uint16_t host_int) { return OSSwapInt64(host_int); }
-
-#else
-
-    inline uint64_t gbswap_64(uint64_t host_int) {
-#if defined(__GNUC__) && defined(__x86_64__) && !defined(__APPLE__)
-        // Adapted from /usr/include/byteswap.h.  Not available on Mac.
-        if (__builtin_constant_p(host_int)) {
-            return __bswap_constant_64(host_int);
-        } else {
-            uint64_t result;
-            __asm__("bswap %0" : "=r"(result) : "0"(host_int));
-            return result;
-        }
-#elif defined(__GLIBC__)
-        return bswap_64(host_int);
-#else
-        return (((host_int & uint64_t{0xFF}) << 56) |
-                ((host_int & uint64_t{0xFF00}) << 40) |
-                ((host_int & uint64_t{0xFF0000}) << 24) |
-                ((host_int & uint64_t{0xFF000000}) << 8) |
-                ((host_int & uint64_t{0xFF00000000}) >> 8) |
-                ((host_int & uint64_t{0xFF0000000000}) >> 24) |
-                ((host_int & uint64_t{0xFF000000000000}) >> 40) |
-                ((host_int & uint64_t{0xFF00000000000000}) >> 56));
-#endif  // bswap_64
-    }
-
-    inline uint32_t gbswap_32(uint32_t host_int) {
-#if defined(__GLIBC__)
-        return bswap_32(host_int);
-#else
-        return (((host_int & uint32_t{0xFF}) << 24) |
-                ((host_int & uint32_t{0xFF00}) << 8) |
-                ((host_int & uint32_t{0xFF0000}) >> 8) |
-                ((host_int & uint32_t{0xFF000000}) >> 24));
-#endif
-    }
-
-    inline uint16_t gbswap_16(uint16_t host_int) {
-#if defined(__GLIBC__)
-        return bswap_16(host_int);
-#else
-        return (((host_int & uint16_t{0xFF}) << 8) |
-                ((host_int & uint16_t{0xFF00}) >> 8));
-#endif
-    }
-
-#endif  // intrinics available
-
-#ifdef PHMAP_IS_LITTLE_ENDIAN
-
-    // Definitions for ntohl etc. that don't require us to include
-    // netinet/in.h. We wrap gbswap_32 and gbswap_16 in functions rather
-    // than just #defining them because in debug mode, gcc doesn't
-    // correctly handle the (rather involved) definitions of bswap_32.
-    // gcc guarantees that inline functions are as fast as macros, so
-    // this isn't a performance hit.
-    inline uint16_t ghtons(uint16_t x) { return gbswap_16(x); }
-    inline uint32_t ghtonl(uint32_t x) { return gbswap_32(x); }
-    inline uint64_t ghtonll(uint64_t x) { return gbswap_64(x); }
-
-#elif defined PHMAP_IS_BIG_ENDIAN
-
-    // These definitions are simpler on big-endian machines
-    // These are functions instead of macros to avoid self-assignment warnings
-    // on calls such as "i = ghtnol(i);".  This also provides type checking.
-    inline uint16_t ghtons(uint16_t x) { return x; }
-    inline uint32_t ghtonl(uint32_t x) { return x; }
-    inline uint64_t ghtonll(uint64_t x) { return x; }
-
-#else
-    #error \
-        "Unsupported byte order: Either PHMAP_IS_BIG_ENDIAN or " \
-           "PHMAP_IS_LITTLE_ENDIAN must be defined"
-#endif  // byte order
-
-inline uint16_t gntohs(uint16_t x) { return ghtons(x); }
-inline uint32_t gntohl(uint32_t x) { return ghtonl(x); }
-inline uint64_t gntohll(uint64_t x) { return ghtonll(x); }
-
-// Utilities to convert numbers between the current hosts's native byte
-// order and little-endian byte order
-//
-// Load/Store methods are alignment safe
-namespace little_endian {
-// Conversion functions.
-#ifdef PHMAP_IS_LITTLE_ENDIAN
-
-    inline uint16_t FromHost16(uint16_t x) { return x; }
-    inline uint16_t ToHost16(uint16_t x) { return x; }
-
-    inline uint32_t FromHost32(uint32_t x) { return x; }
-    inline uint32_t ToHost32(uint32_t x) { return x; }
-
-    inline uint64_t FromHost64(uint64_t x) { return x; }
-    inline uint64_t ToHost64(uint64_t x) { return x; }
-
-    inline constexpr bool IsLittleEndian() { return true; }
-
-#elif defined PHMAP_IS_BIG_ENDIAN
-
-    inline uint16_t FromHost16(uint16_t x) { return gbswap_16(x); }
-    inline uint16_t ToHost16(uint16_t x) { return gbswap_16(x); }
-
-    inline uint32_t FromHost32(uint32_t x) { return gbswap_32(x); }
-    inline uint32_t ToHost32(uint32_t x) { return gbswap_32(x); }
-
-    inline uint64_t FromHost64(uint64_t x) { return gbswap_64(x); }
-    inline uint64_t ToHost64(uint64_t x) { return gbswap_64(x); }
-
-    inline constexpr bool IsLittleEndian() { return false; }
-
-#endif /* ENDIAN */
-
-// Functions to do unaligned loads and stores in little-endian order.
-inline uint16_t Load16(const void *p) {
-  return ToHost16(PHMAP_INTERNAL_UNALIGNED_LOAD16(p));
-}
-
-inline void Store16(void *p, uint16_t v) {
-  PHMAP_INTERNAL_UNALIGNED_STORE16(p, FromHost16(v));
-}
-
-inline uint32_t Load32(const void *p) {
-  return ToHost32(PHMAP_INTERNAL_UNALIGNED_LOAD32(p));
-}
-
-inline void Store32(void *p, uint32_t v) {
-  PHMAP_INTERNAL_UNALIGNED_STORE32(p, FromHost32(v));
-}
-
-inline uint64_t Load64(const void *p) {
-  return ToHost64(PHMAP_INTERNAL_UNALIGNED_LOAD64(p));
-}
-
-inline void Store64(void *p, uint64_t v) {
-  PHMAP_INTERNAL_UNALIGNED_STORE64(p, FromHost64(v));
-}
-
-}  // namespace little_endian
-
-// Utilities to convert numbers between the current hosts's native byte
-// order and big-endian byte order (same as network byte order)
-//
-// Load/Store methods are alignment safe
-namespace big_endian {
-#ifdef PHMAP_IS_LITTLE_ENDIAN
-
-    inline uint16_t FromHost16(uint16_t x) { return gbswap_16(x); }
-    inline uint16_t ToHost16(uint16_t x) { return gbswap_16(x); }
-
-    inline uint32_t FromHost32(uint32_t x) { return gbswap_32(x); }
-    inline uint32_t ToHost32(uint32_t x) { return gbswap_32(x); }
-
-    inline uint64_t FromHost64(uint64_t x) { return gbswap_64(x); }
-    inline uint64_t ToHost64(uint64_t x) { return gbswap_64(x); }
-
-    inline constexpr bool IsLittleEndian() { return true; }
-
-#elif defined PHMAP_IS_BIG_ENDIAN
-
-    inline uint16_t FromHost16(uint16_t x) { return x; }
-    inline uint16_t ToHost16(uint16_t x) { return x; }
-
-    inline uint32_t FromHost32(uint32_t x) { return x; }
-    inline uint32_t ToHost32(uint32_t x) { return x; }
-
-    inline uint64_t FromHost64(uint64_t x) { return x; }
-    inline uint64_t ToHost64(uint64_t x) { return x; }
-
-    inline constexpr bool IsLittleEndian() { return false; }
-
-#endif /* ENDIAN */
-
-// Functions to do unaligned loads and stores in big-endian order.
-inline uint16_t Load16(const void *p) {
-  return ToHost16(PHMAP_INTERNAL_UNALIGNED_LOAD16(p));
-}
-
-inline void Store16(void *p, uint16_t v) {
-  PHMAP_INTERNAL_UNALIGNED_STORE16(p, FromHost16(v));
-}
-
-inline uint32_t Load32(const void *p) {
-  return ToHost32(PHMAP_INTERNAL_UNALIGNED_LOAD32(p));
-}
-
-inline void Store32(void *p, uint32_t v) {
-  PHMAP_INTERNAL_UNALIGNED_STORE32(p, FromHost32(v));
-}
-
-inline uint64_t Load64(const void *p) {
-  return ToHost64(PHMAP_INTERNAL_UNALIGNED_LOAD64(p));
-}
-
-inline void Store64(void *p, uint64_t v) {
-  PHMAP_INTERNAL_UNALIGNED_STORE64(p, FromHost64(v));
-}
-
-}  // namespace big_endian
-
-}  // namespace phmap
-
-#ifdef _MSC_VER
-     #pragma warning(pop)  
-#endif
-
-#endif // phmap_bits_h_guard_