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[simd] Use set1 operator

This commit is contained in:
Behdad Esfahbod 2019-12-11 10:50:08 -06:00
parent 997809ea4a
commit 90d0200ac7
1 changed files with 6 additions and 11 deletions
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17
src/hb-simd.hh
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@ -218,24 +218,19 @@ hb_simd_ksearch_glyphid (unsigned *pos, /* Out */
*pos = 0;
#define HB_2TIMES(x) (x), (x)
#define HB_4TIMES(x) HB_2TIMES(x), HB_2TIMES (x)
#define HB_8TIMES(x) HB_4TIMES(x), HB_4TIMES (x)
#define HB_16TIMES(x) HB_8TIMES (x), HB_8TIMES (x)
/* Find deptch of search tree. */
static const unsigned steps[] = {1, 9, 81, 729, 6561, 59049};
unsigned rank = 1;
while (rank < ARRAY_LENGTH (steps) && length >= steps[rank])
rank++;
static const __m256i _1x8 = _mm256_set_epi32 (HB_8TIMES (1));
static const __m256i __1x8 = _mm256_set_epi32 (HB_8TIMES (-1));
static const __m256i _1x8 = _mm256_set1_epi32 (+1);
static const __m256i __1x8 = _mm256_set1_epi32 (-1);
static const __m256i _12345678 = _mm256_set_epi32 (8, 7, 6, 5, 4, 3, 2, 1);
static const __m256i __32768x16 = _mm256_set_epi16 (HB_16TIMES (-32768));
static const __m256i __32768x16 = _mm256_set1_epi16 (-32768);
/* Set up key vector. */
const __m256i K = _mm256_add_epi16 (_mm256_set_epi16 (HB_16TIMES ((signed) k - 32768)), _1x8);
const __m256i K = _mm256_add_epi16 (_mm256_set1_epi16 ((signed) k - 32768), _1x8);
while (rank)
{
@ -243,9 +238,9 @@ hb_simd_ksearch_glyphid (unsigned *pos, /* Out */
/* Load multiple ranges to test against. */
const unsigned limit = stride * length;
const __m256i limits = _mm256_set_epi32 (HB_8TIMES (limit + 1));
const __m256i limits = _mm256_set1_epi32 (limit + 1);
const unsigned pitch = stride * step;
const __m256i pitches = _mm256_set_epi32 (HB_8TIMES (pitch));
const __m256i pitches = _mm256_set1_epi32 (pitch);
const __m256i offsets = _mm256_mullo_epi32 (pitches, _12345678);
const __m256i mask = _mm256_cmpgt_epi32 (limits, offsets);
unsigned back_off = stride;