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rose: add shufti-based lookaround instructions

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More lookaround specialisations that use the shufti approach.
This commit is contained in:
Xu, Chi
2016-09-01 07:48:04 +08:00
committed by Matthew Barr
parent 5e3fa7a266
commit 04d79629de
9 changed files with 1013 additions and 0 deletions
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33
src/util/simd_utils.h
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@@ -384,6 +384,11 @@ u32 movemask256(m256 a) {
return lo_mask | (hi_mask << 16);
}
static really_inline
m256 set2x128(m128 a) {
m256 rv = {a, a};
return rv;
}
#endif
static really_inline m256 zeroes256(void) {
@@ -534,6 +539,10 @@ static really_inline m256 load2x128(const void *ptr) {
#endif
}
static really_inline m256 loadu2x128(const void *ptr) {
return set2x128(loadu128(ptr));
}
// aligned store
static really_inline void store256(void *ptr, m256 a) {
assert(ISALIGNED_N(ptr, alignof(m256)));
@@ -632,6 +641,22 @@ char testbit256(m256 val, unsigned int n) {
return testbit128(sub, n);
}
static really_really_inline
m128 movdq_hi(m256 x) {
return x.hi;
}
static really_really_inline
m128 movdq_lo(m256 x) {
return x.lo;
}
static really_inline
m256 combine2x128(m128 a, m128 b) {
m256 rv = {a, b};
return rv;
}
#else // AVX2
// switches on bit N in the given vector.
@@ -676,6 +701,14 @@ m128 movdq_lo(m256 x) {
#define interleave256lo(a, b) _mm256_unpacklo_epi8(a, b);
#define vpalignr(r, l, offset) _mm256_alignr_epi8(r, l, offset)
static really_inline
m256 combine2x128(m128 hi, m128 lo) {
#if defined(_mm256_set_m128i)
return _mm256_set_m128i(hi, lo);
#else
return insert128to256(cast128to256(hi), lo, 1);
#endif
}
#endif //AVX2
/****