custom _mm_loadu_si16/_mm_storeu_si16 for old gcc

This commit is contained in:
dzaima 2023-05-12 16:25:31 +03:00
parent 0442dc010d
commit a39264533e

View File

@ -1,11 +1,15 @@
#if !defined(SI_C_DEFS)
#define SI_C_DEFS
#if __GNUC__ && !__clang__ && (defined(__x86_64) || defined(__amd64__)) // old gcc versions don't define _mm_loadu_si32 & _mm_storeu_si32
#if EXACTLY_GCC && (defined(__x86_64) || defined(__amd64__)) // old gcc versions don't define some smaller-size loads/stores
#include <xmmintrin.h>
static __m128i custom_loadu_si32(void* p) { return (__m128i) _mm_load_ss(p); }
static __m128i custom_loadu_si16(void* p) { return _mm_insert_epi16(_mm_setzero_si128(), *(i16*)p, 0); }
static void custom_storeu_si32(void* p, __m128i x) { _mm_store_ss(p, _mm_castsi128_ps(x)); }
static void custom_storeu_si16(void* p, __m128i x) { *(i16*)p = _mm_extract_epi16(x, 0); }
#define _mm_loadu_si16 custom_loadu_si16
#define _mm_loadu_si32 custom_loadu_si32
#define _mm_storeu_si16 custom_storeu_si16
#define _mm_storeu_si32 custom_storeu_si32
#endif