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BitUtil: Delta, ZigZag, NumBits, Floating Point,...

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2019-10-18 18:26:32 +02:00
parent cc1bcb8798
commit 733aa372a7
1 changed files with 4 additions and 4 deletions
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8
bitutil.c
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@ -38,9 +38,9 @@ uint8_t bit8( uint8_t *in, unsigned n, uint8_t *px) { uint8_t o,x,u0,*ip; BI
uint64_t bit64(uint64_t *in, unsigned n, uint64_t *px) { uint64_t o,x,u0,*ip; BIT(in, n, 64); if(px) *px = x; return o; }
uint16_t bit16(uint16_t *in, unsigned n, uint16_t *px) {
uint16_t o, x, u0, *ip;
uint16_t o, x, u0 = in[0], *ip;
#if defined(__SSE2__) || defined(__ARM_NEON)
__m128i vb0 = _mm_set1_epi16(*in), vo0 = _mm_setzero_si128(), vx0 = _mm_setzero_si128(),
__m128i vb0 = _mm_set1_epi16(u0), vo0 = _mm_setzero_si128(), vx0 = _mm_setzero_si128(),
vo1 = _mm_setzero_si128(), vx1 = _mm_setzero_si128();
for(ip = in; ip != in+(n&~(16-1)); ip += 16) { PREFETCH(ip+512,0);
__m128i v0 = _mm_loadu_si128((__m128i *) ip);
@ -61,7 +61,7 @@ uint16_t bit16(uint16_t *in, unsigned n, uint16_t *px) {
}
uint32_t bit32(uint32_t *in, unsigned n, uint32_t *px) {
uint32_t o,x,u0,*ip;
uint32_t o,x,u0 = in[0], *ip;
#if defined(__AVX2__) && defined(USE_AVX2)
__m256i vb0 = _mm256_set1_epi32(*in), vo0 = _mm256_setzero_si256(), vx0 = _mm256_setzero_si256(),
vo1 = _mm256_setzero_si256(), vx1 = _mm256_setzero_si256();
@ -76,7 +76,7 @@ uint32_t bit32(uint32_t *in, unsigned n, uint32_t *px) {
vo0 = _mm256_or_si256(vo0, vo1); o = mm256_hor_epi32(vo0);
vx0 = _mm256_or_si256(vx0, vx1); x = mm256_hor_epi32(vx0);
#elif defined(__SSE2__) || defined(__ARM_NEON)
__m128i vb0 = _mm_set1_epi32(*in), vo0 = _mm_setzero_si128(), vx0 = _mm_setzero_si128(),
__m128i vb0 = _mm_set1_epi32(u0), vo0 = _mm_setzero_si128(), vx0 = _mm_setzero_si128(),
vo1 = _mm_setzero_si128(), vx1 = _mm_setzero_si128();
for(ip = in; ip != in+(n&~(8-1)); ip += 8) { PREFETCH(ip+512,0);
__m128i v0 = _mm_loadu_si128((__m128i *) ip);