diff options
-rw-r--r-- | CMake/AbseilDll.cmake | 2 | ||||
-rw-r--r-- | absl/base/config.h | 32 | ||||
-rw-r--r-- | absl/base/internal/endian.h | 79 | ||||
-rw-r--r-- | absl/container/BUILD.bazel | 13 | ||||
-rw-r--r-- | absl/container/CMakeLists.txt | 14 | ||||
-rw-r--r-- | absl/container/internal/hashtablez_sampler.cc | 4 | ||||
-rw-r--r-- | absl/container/internal/hashtablez_sampler.h | 4 | ||||
-rw-r--r-- | absl/container/internal/hashtablez_sampler_test.cc | 4 | ||||
-rw-r--r-- | absl/container/internal/have_sse.h | 50 | ||||
-rw-r--r-- | absl/container/internal/raw_hash_set.h | 51 | ||||
-rw-r--r-- | absl/container/internal/raw_hash_set_test.cc | 2 | ||||
-rw-r--r-- | absl/strings/numbers.h | 17 |
12 files changed, 101 insertions, 171 deletions
diff --git a/CMake/AbseilDll.cmake b/CMake/AbseilDll.cmake index 0becc7a9..518c469b 100644 --- a/CMake/AbseilDll.cmake +++ b/CMake/AbseilDll.cmake @@ -78,7 +78,6 @@ set(ABSL_INTERNAL_DLL_FILES "container/internal/hashtablez_sampler.cc" "container/internal/hashtablez_sampler.h" "container/internal/hashtablez_sampler_force_weak_definition.cc" - "container/internal/have_sse.h" "container/internal/inlined_vector.h" "container/internal/layout.h" "container/internal/node_slot_policy.h" @@ -456,7 +455,6 @@ set(ABSL_INTERNAL_DLL_TARGETS "hashtablez_sampler" "hashtable_debug" "hashtable_debug_hooks" - "have_sse" "node_slot_policy" "raw_hash_map" "container_common" diff --git a/absl/base/config.h b/absl/base/config.h index 78de4d1c..429dd353 100644 --- a/absl/base/config.h +++ b/absl/base/config.h @@ -269,6 +269,8 @@ static_assert(ABSL_INTERNAL_INLINE_NAMESPACE_STR[0] != 'h' || #define ABSL_HAVE_SOURCE_LOCATION_CURRENT 1 #elif ABSL_INTERNAL_HAVE_MIN_GNUC_VERSION(5, 0) #define ABSL_HAVE_SOURCE_LOCATION_CURRENT 1 +#elif defined(_MSC_VER) && _MSC_VER >= 1926 +#define ABSL_HAVE_SOURCE_LOCATION_CURRENT 1 #endif #endif @@ -818,4 +820,34 @@ static_assert(ABSL_INTERNAL_INLINE_NAMESPACE_STR[0] != 'h' || #define ABSL_INTERNAL_HAS_RTTI 1 #endif // !defined(__GNUC__) || defined(__GXX_RTTI) +// ABSL_INTERNAL_HAVE_SSE2 is used for compile-time detection of SSE2 support. +// See https://gcc.gnu.org/onlinedocs/gcc/x86-Options.html for an overview of +// which architectures support the various x86 instruction sets. +#ifdef ABSL_INTERNAL_HAVE_SSE2 +#error ABSL_INTERNAL_HAVE_SSE2 cannot be directly set +#elif defined(__SSE2__) +#define ABSL_INTERNAL_HAVE_SSE2 1 +#elif defined(_M_X64) || (defined(_M_IX86_FP) && _M_IX86_FP >= 2) +// MSVC only defines _M_IX86_FP for x86 32-bit code, and _M_IX86_FP >= 2 +// indicates that at least SSE2 was targeted with the /arch:SSE2 option. +// All x86-64 processors support SSE2, so support can be assumed. +// https://docs.microsoft.com/en-us/cpp/preprocessor/predefined-macros +#define ABSL_INTERNAL_HAVE_SSE2 1 +#endif + +// ABSL_INTERNAL_HAVE_SSSE3 is used for compile-time detection of SSSE3 support. +// See https://gcc.gnu.org/onlinedocs/gcc/x86-Options.html for an overview of +// which architectures support the various x86 instruction sets. +// +// MSVC does not have a mode that targets SSSE3 at compile-time. To use SSSE3 +// with MSVC requires either assuming that the code will only every run on CPUs +// that support SSSE3, otherwise __cpuid() can be used to detect support at +// runtime and fallback to a non-SSSE3 implementation when SSSE3 is unsupported +// by the CPU. +#ifdef ABSL_INTERNAL_HAVE_SSSE3 +#error ABSL_INTERNAL_HAVE_SSSE3 cannot be directly set +#elif defined(__SSSE3__) +#define ABSL_INTERNAL_HAVE_SSSE3 1 +#endif + #endif // ABSL_BASE_CONFIG_H_ diff --git a/absl/base/internal/endian.h b/absl/base/internal/endian.h index dad0e9ae..50747d75 100644 --- a/absl/base/internal/endian.h +++ b/absl/base/internal/endian.h @@ -16,16 +16,9 @@ #ifndef ABSL_BASE_INTERNAL_ENDIAN_H_ #define ABSL_BASE_INTERNAL_ENDIAN_H_ -// The following guarantees declaration of the byte swap functions -#ifdef _MSC_VER -#include <stdlib.h> // NOLINT(build/include) -#elif defined(__FreeBSD__) -#include <sys/endian.h> -#elif defined(__GLIBC__) -#include <byteswap.h> // IWYU pragma: export -#endif - #include <cstdint> +#include <cstdlib> + #include "absl/base/casts.h" #include "absl/base/config.h" #include "absl/base/internal/unaligned_access.h" @@ -34,47 +27,11 @@ namespace absl { ABSL_NAMESPACE_BEGIN -// 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) { +#if ABSL_HAVE_BUILTIN(__builtin_bswap64) || defined(__GNUC__) 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); -} - -#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) | @@ -84,12 +41,14 @@ inline uint64_t gbswap_64(uint64_t host_int) { ((host_int & uint64_t{0xFF0000000000}) >> 24) | ((host_int & uint64_t{0xFF000000000000}) >> 40) | ((host_int & uint64_t{0xFF00000000000000}) >> 56)); -#endif // bswap_64 +#endif } inline uint32_t gbswap_32(uint32_t host_int) { -#if defined(__GLIBC__) - return bswap_32(host_int); +#if ABSL_HAVE_BUILTIN(__builtin_bswap32) || defined(__GNUC__) + return __builtin_bswap32(host_int); +#elif defined(_MSC_VER) + return _byteswap_ulong(host_int); #else return (((host_int & uint32_t{0xFF}) << 24) | ((host_int & uint32_t{0xFF00}) << 8) | @@ -99,33 +58,29 @@ inline uint32_t gbswap_32(uint32_t host_int) { } inline uint16_t gbswap_16(uint16_t host_int) { -#if defined(__GLIBC__) - return bswap_16(host_int); +#if ABSL_HAVE_BUILTIN(__builtin_bswap16) || defined(__GNUC__) + return __builtin_bswap16(host_int); +#elif defined(_MSC_VER) + return _byteswap_ushort(host_int); #else return (((host_int & uint16_t{0xFF}) << 8) | ((host_int & uint16_t{0xFF00}) >> 8)); #endif } -#endif // intrinsics available - #ifdef ABSL_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. +// Portable definitions for htonl (host-to-network) and friends on little-endian +// architectures. 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 ABSL_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. +// Portable definitions for htonl (host-to-network) etc on big-endian +// architectures. These definitions are simpler since the host byte order is the +// same as network byte order. 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; } diff --git a/absl/container/BUILD.bazel b/absl/container/BUILD.bazel index bc25bac9..2095e57d 100644 --- a/absl/container/BUILD.bazel +++ b/absl/container/BUILD.bazel @@ -509,8 +509,8 @@ cc_library( copts = ABSL_DEFAULT_COPTS, linkopts = ABSL_DEFAULT_LINKOPTS, deps = [ - ":have_sse", "//absl/base", + "//absl/base:config", "//absl/base:core_headers", "//absl/debugging:stacktrace", "//absl/memory", @@ -527,7 +527,7 @@ cc_test( linkopts = ABSL_DEFAULT_LINKOPTS, deps = [ ":hashtablez_sampler", - ":have_sse", + "//absl/base:config", "//absl/base:core_headers", "//absl/profiling:sample_recorder", "//absl/synchronization", @@ -570,14 +570,6 @@ cc_library( ) cc_library( - name = "have_sse", - hdrs = ["internal/have_sse.h"], - copts = ABSL_DEFAULT_COPTS, - linkopts = ABSL_DEFAULT_LINKOPTS, - visibility = ["//visibility:private"], -) - -cc_library( name = "common", hdrs = ["internal/common.h"], copts = ABSL_DEFAULT_COPTS, @@ -601,7 +593,6 @@ cc_library( ":hash_policy_traits", ":hashtable_debug_hooks", ":hashtablez_sampler", - ":have_sse", "//absl/base:config", "//absl/base:core_headers", "//absl/base:endian", diff --git a/absl/container/CMakeLists.txt b/absl/container/CMakeLists.txt index 648a3dba..7176907d 100644 --- a/absl/container/CMakeLists.txt +++ b/absl/container/CMakeLists.txt @@ -550,8 +550,8 @@ absl_cc_library( ${ABSL_DEFAULT_COPTS} DEPS absl::base + absl::config absl::exponential_biased - absl::have_sse absl::sample_recorder absl::synchronization ) @@ -564,8 +564,8 @@ absl_cc_test( COPTS ${ABSL_TEST_COPTS} DEPS + absl::config absl::hashtablez_sampler - absl::have_sse GTest::gmock_main ) @@ -594,15 +594,6 @@ absl_cc_library( absl_cc_library( NAME - have_sse - HDRS - "internal/have_sse.h" - COPTS - ${ABSL_DEFAULT_COPTS} -) - -absl_cc_library( - NAME node_slot_policy HDRS "internal/node_slot_policy.h" @@ -670,7 +661,6 @@ absl_cc_library( absl::endian absl::hash_policy_traits absl::hashtable_debug_hooks - absl::have_sse absl::memory absl::meta absl::optional diff --git a/absl/container/internal/hashtablez_sampler.cc b/absl/container/internal/hashtablez_sampler.cc index 322e0547..c6036d51 100644 --- a/absl/container/internal/hashtablez_sampler.cc +++ b/absl/container/internal/hashtablez_sampler.cc @@ -21,7 +21,7 @@ #include <limits> #include "absl/base/attributes.h" -#include "absl/container/internal/have_sse.h" +#include "absl/base/config.h" #include "absl/debugging/stacktrace.h" #include "absl/memory/memory.h" #include "absl/profiling/internal/exponential_biased.h" @@ -160,7 +160,7 @@ void RecordInsertSlow(HashtablezInfo* info, size_t hash, // SwissTables probe in groups of 16, so scale this to count items probes and // not offset from desired. size_t probe_length = distance_from_desired; -#if ABSL_INTERNAL_RAW_HASH_SET_HAVE_SSE2 +#ifdef ABSL_INTERNAL_HAVE_SSE2 probe_length /= 16; #else probe_length /= 8; diff --git a/absl/container/internal/hashtablez_sampler.h b/absl/container/internal/hashtablez_sampler.h index e7c204ee..d4016d8a 100644 --- a/absl/container/internal/hashtablez_sampler.h +++ b/absl/container/internal/hashtablez_sampler.h @@ -44,9 +44,9 @@ #include <memory> #include <vector> +#include "absl/base/config.h" #include "absl/base/internal/per_thread_tls.h" #include "absl/base/optimization.h" -#include "absl/container/internal/have_sse.h" #include "absl/profiling/internal/sample_recorder.h" #include "absl/synchronization/mutex.h" #include "absl/utility/utility.h" @@ -96,7 +96,7 @@ struct HashtablezInfo : public profiling_internal::Sample<HashtablezInfo> { }; inline void RecordRehashSlow(HashtablezInfo* info, size_t total_probe_length) { -#if ABSL_INTERNAL_RAW_HASH_SET_HAVE_SSE2 +#ifdef ABSL_INTERNAL_HAVE_SSE2 total_probe_length /= 16; #else total_probe_length /= 8; diff --git a/absl/container/internal/hashtablez_sampler_test.cc b/absl/container/internal/hashtablez_sampler_test.cc index 77cdf2fd..665d518f 100644 --- a/absl/container/internal/hashtablez_sampler_test.cc +++ b/absl/container/internal/hashtablez_sampler_test.cc @@ -21,7 +21,7 @@ #include "gmock/gmock.h" #include "gtest/gtest.h" #include "absl/base/attributes.h" -#include "absl/container/internal/have_sse.h" +#include "absl/base/config.h" #include "absl/profiling/internal/sample_recorder.h" #include "absl/synchronization/blocking_counter.h" #include "absl/synchronization/internal/thread_pool.h" @@ -30,7 +30,7 @@ #include "absl/time/clock.h" #include "absl/time/time.h" -#if ABSL_INTERNAL_RAW_HASH_SET_HAVE_SSE2 +#ifdef ABSL_INTERNAL_HAVE_SSE2 constexpr int kProbeLength = 16; #else constexpr int kProbeLength = 8; diff --git a/absl/container/internal/have_sse.h b/absl/container/internal/have_sse.h deleted file mode 100644 index e75e1a16..00000000 --- a/absl/container/internal/have_sse.h +++ /dev/null @@ -1,50 +0,0 @@ -// 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. -// -// Shared config probing for SSE instructions used in Swiss tables. -#ifndef ABSL_CONTAINER_INTERNAL_HAVE_SSE_H_ -#define ABSL_CONTAINER_INTERNAL_HAVE_SSE_H_ - -#ifndef ABSL_INTERNAL_RAW_HASH_SET_HAVE_SSE2 -#if defined(__SSE2__) || \ - (defined(_MSC_VER) && \ - (defined(_M_X64) || (defined(_M_IX86) && _M_IX86_FP >= 2))) -#define ABSL_INTERNAL_RAW_HASH_SET_HAVE_SSE2 1 -#else -#define ABSL_INTERNAL_RAW_HASH_SET_HAVE_SSE2 0 -#endif -#endif - -#ifndef ABSL_INTERNAL_RAW_HASH_SET_HAVE_SSSE3 -#ifdef __SSSE3__ -#define ABSL_INTERNAL_RAW_HASH_SET_HAVE_SSSE3 1 -#else -#define ABSL_INTERNAL_RAW_HASH_SET_HAVE_SSSE3 0 -#endif -#endif - -#if ABSL_INTERNAL_RAW_HASH_SET_HAVE_SSSE3 && \ - !ABSL_INTERNAL_RAW_HASH_SET_HAVE_SSE2 -#error "Bad configuration!" -#endif - -#if ABSL_INTERNAL_RAW_HASH_SET_HAVE_SSE2 -#include <emmintrin.h> -#endif - -#if ABSL_INTERNAL_RAW_HASH_SET_HAVE_SSSE3 -#include <tmmintrin.h> -#endif - -#endif // ABSL_CONTAINER_INTERNAL_HAVE_SSE_H_ diff --git a/absl/container/internal/raw_hash_set.h b/absl/container/internal/raw_hash_set.h index a05bebf6..6a6525e2 100644 --- a/absl/container/internal/raw_hash_set.h +++ b/absl/container/internal/raw_hash_set.h @@ -176,6 +176,18 @@ #ifndef ABSL_CONTAINER_INTERNAL_RAW_HASH_SET_H_ #define ABSL_CONTAINER_INTERNAL_RAW_HASH_SET_H_ +#ifdef __SSE2__ +#include <emmintrin.h> +#endif + +#ifdef __SSSE3__ +#include <tmmintrin.h> +#endif + +#ifdef _MSC_VER +#include <intrin.h> +#endif + #include <algorithm> #include <cmath> #include <cstdint> @@ -187,6 +199,7 @@ #include <type_traits> #include <utility> +#include "absl/base/config.h" #include "absl/base/internal/endian.h" #include "absl/base/optimization.h" #include "absl/base/port.h" @@ -196,7 +209,6 @@ #include "absl/container/internal/hash_policy_traits.h" #include "absl/container/internal/hashtable_debug_hooks.h" #include "absl/container/internal/hashtablez_sampler.h" -#include "absl/container/internal/have_sse.h" #include "absl/memory/memory.h" #include "absl/meta/type_traits.h" #include "absl/numeric/bits.h" @@ -461,7 +473,7 @@ inline bool IsFull(ctrl_t c) { return c >= static_cast<ctrl_t>(0); } inline bool IsDeleted(ctrl_t c) { return c == ctrl_t::kDeleted; } inline bool IsEmptyOrDeleted(ctrl_t c) { return c < ctrl_t::kSentinel; } -#if ABSL_INTERNAL_RAW_HASH_SET_HAVE_SSE2 +#ifdef ABSL_INTERNAL_HAVE_SSE2 // Quick reference guide for intrinsics used below: // // * __m128i: An XMM (128-bit) word. @@ -522,7 +534,7 @@ struct GroupSse2Impl { // Returns a bitmask representing the positions of empty slots. BitMask<uint32_t, kWidth> MatchEmpty() const { -#if ABSL_INTERNAL_RAW_HASH_SET_HAVE_SSSE3 +#ifdef ABSL_INTERNAL_HAVE_SSSE3 // This only works because ctrl_t::kEmpty is -128. return BitMask<uint32_t, kWidth>( static_cast<uint32_t>(_mm_movemask_epi8(_mm_sign_epi8(ctrl, ctrl)))); @@ -548,7 +560,7 @@ struct GroupSse2Impl { void ConvertSpecialToEmptyAndFullToDeleted(ctrl_t* dst) const { auto msbs = _mm_set1_epi8(static_cast<char>(-128)); auto x126 = _mm_set1_epi8(126); -#if ABSL_INTERNAL_RAW_HASH_SET_HAVE_SSSE3 +#ifdef ABSL_INTERNAL_HAVE_SSSE3 auto res = _mm_or_si128(_mm_shuffle_epi8(x126, ctrl), msbs); #else auto zero = _mm_setzero_si128(); @@ -614,7 +626,7 @@ struct GroupPortableImpl { uint64_t ctrl; }; -#if ABSL_INTERNAL_RAW_HASH_SET_HAVE_SSE2 +#ifdef ABSL_INTERNAL_HAVE_SSE2 using Group = GroupSse2Impl; #else using Group = GroupPortableImpl; @@ -700,13 +712,8 @@ size_t SelectBucketCountForIterRange(InputIter first, InputIter last, return 0; } -inline void AssertIsFull(ctrl_t* ctrl) { - ABSL_HARDENING_ASSERT( - (ctrl != nullptr && IsFull(*ctrl)) && - "Invalid operation on iterator. The element might have " - "been erased, the table might have rehashed, or this may " - "be an end() iterator."); -} +#define ABSL_INTERNAL_ASSERT_IS_FULL(ctrl, msg) \ + ABSL_HARDENING_ASSERT((ctrl != nullptr && IsFull(*ctrl)) && msg); inline void AssertIsValid(ctrl_t* ctrl) { ABSL_HARDENING_ASSERT( @@ -942,16 +949,22 @@ class raw_hash_set { // PRECONDITION: not an end() iterator. reference operator*() const { - AssertIsFull(ctrl_); + ABSL_INTERNAL_ASSERT_IS_FULL(ctrl_, + "operator*() called on invalid iterator."); return PolicyTraits::element(slot_); } // PRECONDITION: not an end() iterator. - pointer operator->() const { return &operator*(); } + pointer operator->() const { + ABSL_INTERNAL_ASSERT_IS_FULL(ctrl_, + "operator-> called on invalid iterator."); + return &operator*(); + } // PRECONDITION: not an end() iterator. iterator& operator++() { - AssertIsFull(ctrl_); + ABSL_INTERNAL_ASSERT_IS_FULL(ctrl_, + "operator++ called on invalid iterator."); ++ctrl_; ++slot_; skip_empty_or_deleted(); @@ -1500,7 +1513,8 @@ class raw_hash_set { // This overload is necessary because otherwise erase<K>(const K&) would be // a better match if non-const iterator is passed as an argument. void erase(iterator it) { - AssertIsFull(it.ctrl_); + ABSL_INTERNAL_ASSERT_IS_FULL(it.ctrl_, + "erase() called on invalid iterator.") PolicyTraits::destroy(&alloc_ref(), it.slot_); erase_meta_only(it); } @@ -1534,7 +1548,8 @@ class raw_hash_set { } node_type extract(const_iterator position) { - AssertIsFull(position.inner_.ctrl_); + ABSL_INTERNAL_ASSERT_IS_FULL(position.inner_.ctrl_, + "extract() called on invalid iterator.") auto node = CommonAccess::Transfer<node_type>(alloc_ref(), position.inner_.slot_); erase_meta_only(position); @@ -2263,4 +2278,6 @@ struct HashtableDebugAccess<Set, absl::void_t<typename Set::raw_hash_set>> { ABSL_NAMESPACE_END } // namespace absl +#undef ABSL_INTERNAL_ASSERT_IS_FULL + #endif // ABSL_CONTAINER_INTERNAL_RAW_HASH_SET_H_ diff --git a/absl/container/internal/raw_hash_set_test.cc b/absl/container/internal/raw_hash_set_test.cc index e7732f67..9cd88a28 100644 --- a/absl/container/internal/raw_hash_set_test.cc +++ b/absl/container/internal/raw_hash_set_test.cc @@ -2030,7 +2030,7 @@ TEST(TableDeathTest, EraseOfEndAsserts) { IntTable t; // Extra simple "regexp" as regexp support is highly varied across platforms. - constexpr char kDeathMsg[] = "Invalid operation on iterator"; + constexpr char kDeathMsg[] = "erase.. called on invalid iterator"; EXPECT_DEATH_IF_SUPPORTED(t.erase(t.end()), kDeathMsg); } diff --git a/absl/strings/numbers.h b/absl/strings/numbers.h index 3ed24669..86c84ed3 100644 --- a/absl/strings/numbers.h +++ b/absl/strings/numbers.h @@ -23,8 +23,12 @@ #ifndef ABSL_STRINGS_NUMBERS_H_ #define ABSL_STRINGS_NUMBERS_H_ -#ifdef __SSE4_2__ -#include <x86intrin.h> +#ifdef __SSSE3__ +#include <tmmintrin.h> +#endif + +#ifdef _MSC_VER +#include <intrin.h> #endif #include <cstddef> @@ -36,14 +40,7 @@ #include <type_traits> #include "absl/base/config.h" -#ifdef __SSE4_2__ -// TODO(jorg): Remove this when we figure out the right way -// to swap bytes on SSE 4.2 that works with the compilers -// we claim to support. Also, add tests for the compiler -// that doesn't support the Intel _bswap64 intrinsic but -// does support all the SSE 4.2 intrinsics #include "absl/base/internal/endian.h" -#endif #include "absl/base/macros.h" #include "absl/base/port.h" #include "absl/numeric/bits.h" @@ -246,7 +243,7 @@ ABSL_MUST_USE_RESULT bool safe_strtoi_base(absl::string_view s, int_type* out, // Returns the number of non-pad digits of the output (it can never be zero // since 0 has one digit). inline size_t FastHexToBufferZeroPad16(uint64_t val, char* out) { -#ifdef __SSE4_2__ +#ifdef ABSL_INTERNAL_HAVE_SSSE3 uint64_t be = absl::big_endian::FromHost64(val); const auto kNibbleMask = _mm_set1_epi8(0xf); const auto kHexDigits = _mm_setr_epi8('0', '1', '2', '3', '4', '5', '6', '7', |