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Fix some ARM/clang-cl feature detection issues #623

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merged 2 commits into from
Dec 1, 2021
Merged

Fix some ARM/clang-cl feature detection issues #623

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85769a8
Fix some feature detection for arm/windows
easyaspi314 Nov 30, 2021
2e7af13
Fix CLI detection for Windows ARM and ARM64EC
easyaspi314 Nov 30, 2021
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18 changes: 12 additions & 6 deletions cli/xsum_arch.h
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Original file line number Diff line number Diff line change
Expand Up @@ -79,7 +79,7 @@
#endif

/* makes the next part easier */
#if defined(__x86_64__) || defined(_M_AMD64) || defined(_M_X64)
#if (defined(__x86_64__) || defined(_M_AMD64) || defined(_M_X64)) && !defined(_M_ARM64EC)
# define XSUM_ARCH_X64 1
# define XSUM_ARCH_X86 "x86_64"
#elif defined(__i386__) || defined(_M_IX86) || defined(_M_IX86_FP)
Expand All @@ -102,29 +102,35 @@
# else
# define XSUM_ARCH XSUM_ARCH_X86
# endif
#elif defined(__aarch64__) || defined(__arm64__) || defined(_M_ARM64)
#elif defined(__aarch64__) || defined(__arm64__) || defined(_M_ARM64) || defined(_M_ARM64EC)
# define XSUM_ARCH "aarch64 + NEON"
#elif defined(__arm__) || defined(__thumb__) || defined(__thumb2__) || defined(_M_ARM)
/* ARM has a lot of different features that can change xxHash significantly. */
# if defined(__thumb2__) || (defined(__thumb__) && (__thumb__ == 2 || __ARM_ARCH >= 7))
# ifdef __ARM_ARCH
# define XSUM_ARCH_ARM_VER XSUM_EXPAND_AND_QUOTE(__ARM_ARCH)
# else
# define XSUM_ARCH_ARM_VER XSUM_EXPAND_AND_QUOTE(_M_ARM)
# endif
# if defined(_M_ARM) /* windows arm is always thumb-2 */ \
|| defined(__thumb2__) || (defined(__thumb__) && (__thumb__ == 2 || __ARM_ARCH >= 7))
# define XSUM_ARCH_THUMB " Thumb-2"
# elif defined(__thumb__)
# define XSUM_ARCH_THUMB " Thumb-1"
# else
# define XSUM_ARCH_THUMB ""
# endif
/* ARMv7 has unaligned by default */
# if defined(__ARM_FEATURE_UNALIGNED) || __ARM_ARCH >= 7 || defined(_M_ARMV7VE)
# if defined(__ARM_FEATURE_UNALIGNED) || __ARM_ARCH >= 7 || defined(_M_ARM)
# define XSUM_ARCH_UNALIGNED " + unaligned"
# else
# define XSUM_ARCH_UNALIGNED ""
# endif
# if defined(__ARM_NEON) || defined(__ARM_NEON__)
# if defined(__ARM_NEON) || defined(__ARM_NEON__) || defined(_M_ARM)
# define XSUM_ARCH_NEON " + NEON"
# else
# define XSUM_ARCH_NEON ""
# endif
# define XSUM_ARCH "ARMv" XSUM_EXPAND_AND_QUOTE(__ARM_ARCH) XSUM_ARCH_THUMB XSUM_ARCH_NEON XSUM_ARCH_UNALIGNED
# define XSUM_ARCH "ARMv" XSUM_ARCH_ARM_VER XSUM_ARCH_THUMB XSUM_ARCH_NEON XSUM_ARCH_UNALIGNED
#elif defined(__powerpc64__) || defined(__ppc64__) || defined(__PPC64__)
# if defined(__GNUC__) && defined(__POWER9_VECTOR__)
# define XSUM_ARCH "ppc64 + POWER9 vector"
Expand Down
45 changes: 24 additions & 21 deletions xxhash.h
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Original file line number Diff line number Diff line change
Expand Up @@ -2708,17 +2708,21 @@ XXH_PUBLIC_API XXH64_hash_t XXH64_hashFromCanonical(const XXH64_canonical_t* src
# define XXH_unlikely(x) (x)
#endif

#if defined(__GNUC__)
# if defined(__AVX2__)
# include <immintrin.h>
# elif defined(__SSE2__)
# include <emmintrin.h>
# elif defined(__ARM_NEON__) || defined(__ARM_NEON)
#if defined(__GNUC__) || defined(__clang__)
# if defined(__ARM_NEON__) || defined(__ARM_NEON) \
|| defined(__aarch64__) || defined(_M_ARM) \
|| defined(_M_ARM64) || defined(_M_ARM64EC)
# define inline __inline__ /* circumvent a clang bug */
# include <arm_neon.h>
# undef inline
# elif defined(__AVX2__)
# include <immintrin.h>
# elif defined(__SSE2__)
# include <emmintrin.h>
# endif
#elif defined(_MSC_VER)
#endif

#if defined(_MSC_VER)
# include <intrin.h>
#endif

Expand Down Expand Up @@ -2856,20 +2860,20 @@ enum XXH_VECTOR_TYPE /* fake enum */ {
#endif

#ifndef XXH_VECTOR /* can be defined on command line */
# if defined(__AVX512F__)
# define XXH_VECTOR XXH_AVX512
# elif defined(__AVX2__)
# define XXH_VECTOR XXH_AVX2
# elif defined(__SSE2__) || defined(_M_AMD64) || defined(_M_X64) || (defined(_M_IX86_FP) && (_M_IX86_FP == 2))
# define XXH_VECTOR XXH_SSE2
# elif ( \
# if ( \
defined(__ARM_NEON__) || defined(__ARM_NEON) /* gcc */ \
|| defined(_M_ARM64) || defined(_M_ARM_ARMV7VE) /* msvc */ \
|| defined(_M_ARM) || defined(_M_ARM64) || defined(_M_ARM64EC) /* msvc */ \
) && ( \
defined(_WIN32) || defined(__LITTLE_ENDIAN__) /* little endian only */ \
|| (defined(__BYTE_ORDER__) && __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__) \
)
# define XXH_VECTOR XXH_NEON
# elif defined(__AVX512F__)
# define XXH_VECTOR XXH_AVX512
# elif defined(__AVX2__)
# define XXH_VECTOR XXH_AVX2
# elif defined(__SSE2__) || defined(_M_AMD64) || defined(_M_X64) || (defined(_M_IX86_FP) && (_M_IX86_FP == 2))
# define XXH_VECTOR XXH_SSE2
# elif (defined(__PPC64__) && defined(__POWER8_VECTOR__)) \
|| (defined(__s390x__) && defined(__VEC__)) \
&& defined(__GNUC__) /* TODO: IBM XL */
Expand Down Expand Up @@ -3019,8 +3023,8 @@ enum XXH_VECTOR_TYPE /* fake enum */ {
* }
*/
# if !defined(XXH_NO_VZIP_HACK) /* define to disable */ \
&& defined(__GNUC__) \
&& !defined(__aarch64__) && !defined(__arm64__) && !defined(_M_ARM64)
&& (defined(__GNUC__) || defined(__clang__)) \
&& (defined(__arm__) || defined(__thumb__) || defined(_M_ARM))
# define XXH_SPLIT_IN_PLACE(in, outLo, outHi) \
do { \
/* Undocumented GCC/Clang operand modifier: %e0 = lower D half, %f0 = upper D half */ \
Expand Down Expand Up @@ -3213,7 +3217,6 @@ XXH_mult32to64(xxh_u64 x, xxh_u64 y)
return (x & 0xFFFFFFFF) * (y & 0xFFFFFFFF);
}
#elif defined(_MSC_VER) && defined(_M_IX86)
# include <intrin.h>
# define XXH_mult32to64(x, y) __emulu((unsigned)(x), (unsigned)(y))
#else
/*
Expand Down Expand Up @@ -3253,7 +3256,7 @@ XXH_mult64to128(xxh_u64 lhs, xxh_u64 rhs)
* In that case it is best to use the portable one.
* https://github.com/Cyan4973/xxHash/issues/211#issuecomment-515575677
*/
#if defined(__GNUC__) && !defined(__wasm__) \
#if (defined(__GNUC__) || defined(__clang__)) && !defined(__wasm__) \
&& defined(__SIZEOF_INT128__) \
|| (defined(_INTEGRAL_MAX_BITS) && _INTEGRAL_MAX_BITS >= 128)

Expand All @@ -3270,7 +3273,7 @@ XXH_mult64to128(xxh_u64 lhs, xxh_u64 rhs)
*
* This compiles to single operand MUL on x64.
*/
#elif defined(_M_X64) || defined(_M_IA64)
#elif (defined(_M_X64) || defined(_M_IA64)) && !defined(_M_ARM64EC)

#ifndef _MSC_VER
# pragma intrinsic(_umul128)
Expand All @@ -3287,7 +3290,7 @@ XXH_mult64to128(xxh_u64 lhs, xxh_u64 rhs)
*
* This compiles to the same MUL + UMULH as GCC/Clang's __uint128_t method.
*/
#elif defined(_M_ARM64)
#elif defined(_M_ARM64) || defined(_M_ARM64EC)

#ifndef _MSC_VER
# pragma intrinsic(__umulh)
Expand Down