From bf34d27ecdcb1e387ca76938824715951c2e2bbd Mon Sep 17 00:00:00 2001 From: tevador Date: Mon, 18 Feb 2019 08:56:37 +0100 Subject: [PATCH] Portable SSE2 intrinsics --- src/intrinPortable.h | 140 +++++++++++++++++++++++++++++++++++++------ 1 file changed, 122 insertions(+), 18 deletions(-) diff --git a/src/intrinPortable.h b/src/intrinPortable.h index 2c2e487..c3ee8c7 100644 --- a/src/intrinPortable.h +++ b/src/intrinPortable.h @@ -21,6 +21,18 @@ along with RandomX. If not, see. #include +constexpr int32_t unsigned32ToSigned2sCompl(uint32_t x) { + return (-1 == ~0) ? (int32_t)x : (x > INT32_MAX ? (-(int32_t)(UINT32_MAX - x) - 1) : (int32_t)x); +} + +constexpr int64_t unsigned64ToSigned2sCompl(uint64_t x) { + return (-1 == ~0) ? (int64_t)x : (x > INT64_MAX ? (-(int64_t)(UINT64_MAX - x) - 1) : (int64_t)x); +} + +constexpr uint64_t signExtend2sCompl(uint32_t x) { + return (-1 == ~0) ? (int64_t)(int32_t)(x) : (x > INT32_MAX ? (x | 0xffffffff00000000ULL) : (uint64_t)x); +} + #if defined(_MSC_VER) #if defined(_M_X64) || (defined(_M_IX86_FP) && _M_IX86_FP == 2) #define __SSE2__ 1 @@ -44,6 +56,7 @@ inline __m128d _mm_abs(__m128d xd) { #else #include #include +#include #define _mm_malloc(a,b) malloc(a) #define _mm_free(a) free(a) @@ -56,15 +69,112 @@ typedef union { uint8_t u8[16]; } __m128i; -typedef struct { - double lo; - double hi; +typedef union { + struct { + double lo; + double hi; + }; + __m128i i; } __m128d; inline __m128d _mm_load_pd(const double* pd) { __m128d x; - x.lo = *(pd + 0); - x.hi = *(pd + 1); + x.i.u64[0] = load64(pd + 0); + x.i.u64[1] = load64(pd + 1); + return x; +} + +inline void _mm_store_pd(double* mem_addr, __m128d a) { + store64(mem_addr + 0, a.i.u64[0]); + store64(mem_addr + 1, a.i.u64[1]); +} + +inline __m128d _mm_shuffle_pd(__m128d a, __m128d b, int imm8) { + __m128d x; + x.lo = (imm8 & 1) ? a.hi : a.lo; + x.hi = (imm8 & 2) ? b.hi : b.lo; + return x; +} + +inline __m128d _mm_add_pd(__m128d a, __m128d b) { + __m128d x; + x.lo = a.lo + b.lo; + x.hi = a.hi + b.hi; + return x; +} + +inline __m128d _mm_sub_pd(__m128d a, __m128d b) { + __m128d x; + x.lo = a.lo - b.lo; + x.hi = a.hi - b.hi; + return x; +} + +inline __m128d _mm_mul_pd(__m128d a, __m128d b) { + __m128d x; + x.lo = a.lo * b.lo; + x.hi = a.hi * b.hi; + return x; +} + +inline __m128d _mm_div_pd(__m128d a, __m128d b) { + __m128d x; + x.lo = a.lo / b.lo; + x.hi = a.hi / b.hi; + return x; +} + +inline __m128d _mm_sqrt_pd(__m128d a) { + __m128d x; + x.lo = sqrt(a.lo); + x.hi = sqrt(a.hi); + return x; +} + +inline __m128i _mm_set1_epi64x(uint64_t a) { + __m128i x; + x.u64[0] = a; + x.u64[1] = a; + return x; +} + +inline __m128d _mm_castsi128_pd(__m128i a) { + __m128d x; + x.i = a; + return x; +} + +inline __m128d _mm_abs(__m128d xd) { + xd.lo = std::abs(xd.lo); + xd.hi = std::abs(xd.hi); + return xd; +} + +inline __m128d _mm_xor_pd(__m128d a, __m128d b) { + __m128d x; + x.i.u64[0] = a.i.u64[0] ^ b.i.u64[0]; + x.i.u64[1] = a.i.u64[1] ^ b.i.u64[1]; + return x; +} + +inline __m128d _mm_set_pd(double e1, double e0) { + __m128d x; + x.lo = e0; + x.hi = e1; + return x; +} + +inline __m128d _mm_max_pd(__m128d a, __m128d b) { + __m128d x; + x.lo = a.lo > b.lo ? a.lo : b.lo; + x.hi = a.hi > b.hi ? a.hi : b.hi; + return x; +} + +inline __m128d _mm_cvtepi32_pd(__m128i a) { + __m128d x; + x.lo = (double)unsigned32ToSigned2sCompl(a.u32[0]); + x.hi = (double)unsigned32ToSigned2sCompl(a.u32[1]); return x; } @@ -154,6 +264,12 @@ inline __m128i _mm_slli_si128(__m128i _A, int _Imm) { return _A; } +inline __m128i _mm_loadl_epi64(__m128i const* mem_addr) { + __m128i x; + x.u64[0] = load64(mem_addr); + return x; +} + #endif constexpr int RoundToNearest = 0; @@ -161,20 +277,8 @@ constexpr int RoundDown = 1; constexpr int RoundUp = 2; constexpr int RoundToZero = 3; -constexpr int32_t unsigned32ToSigned2sCompl(uint32_t x) { - return (-1 == ~0) ? (int32_t)x : (x > INT32_MAX ? (-(int32_t)(UINT32_MAX - x) - 1) : (int32_t)x); -} - -constexpr int64_t unsigned64ToSigned2sCompl(uint64_t x) { - return (-1 == ~0) ? (int64_t)x : (x > INT64_MAX ? (-(int64_t)(UINT64_MAX - x) - 1) : (int64_t)x); -} - -constexpr uint64_t signExtend2sCompl(uint32_t x) { - return (-1 == ~0) ? (int64_t)(int32_t)(x) : (x > INT32_MAX ? (x | 0xffffffff00000000ULL) : (uint64_t)x); -} - inline __m128d load_cvt_i32x2(const void* addr) { - __m128i ix = _mm_load_si128((const __m128i*)addr); + __m128i ix = _mm_loadl_epi64((const __m128i*)addr); return _mm_cvtepi32_pd(ix); }