github_mirrors/vectorscan
3
0
Fork 1
mirror of https://github.com/VectorCamp/vectorscan.git synced 2025-11-19 02:30:35 +03:00
Code Issues Packages Projects Releases Wiki Activity

renamed matcher functions, added new ones for Vermicelli

Browse Source
This commit is contained in:
Konstantinos Margaritis
2021-10-27 12:32:03 +03:00
parent 1c1a06aaae
commit 54245bc5ac
6 changed files with 152 additions and 28 deletions
Download Patch File Download Diff File Expand all files Collapse all files

41
src/util/arch/arm/match.hpp
View File

@@ -29,7 +29,44 @@
template <>
really_really_inline
const u8 *firstMatch<16>(const u8 *buf, SuperVector<16> mask) {
const u8 *first_non_zero_match<16>(const u8 *buf, SuperVector<16> mask) {
uint32x4_t m = mask.u.u32x4[0];
uint64_t vmax = vgetq_lane_u64 (vreinterpretq_u64_u32 (vpmaxq_u32(m, m)), 0);
if (vmax != 0) {
typename SuperVector<16>::movemask_type z = mask.movemask();
DEBUG_PRINTF("z %08x\n", z);
DEBUG_PRINTF("buf %p z %08x \n", buf, z);
u32 pos = ctz32(z & 0xffff);
DEBUG_PRINTF("match @ pos %u\n", pos);
assert(pos < 16);
DEBUG_PRINTF("buf + pos %p\n", buf + pos);
return buf + pos;
} else {
return NULL; // no match
}
}
template <>
really_really_inline
const u8 *last_non_zero_match<16>(const u8 *buf, SuperVector<16> mask) {
uint32x4_t m = mask.u.u32x4[0];
uint64_t vmax = vgetq_lane_u64 (vreinterpretq_u64_u32 (vpmaxq_u32(m, m)), 0);
if (vmax != 0) {
typename SuperVector<16>::movemask_type z = mask.movemask();
DEBUG_PRINTF("buf %p z %08x \n", buf, z);
DEBUG_PRINTF("z %08x\n", z);
u32 pos = clz32(z & 0xffff);
DEBUG_PRINTF("match @ pos %u\n", pos);
assert(pos >= 16 && pos < 32);
return buf + (31 - pos);
} else {
return NULL; // no match
}
}
template <>
really_really_inline
const u8 *first_zero_match_inverted<16>(const u8 *buf, SuperVector<16> mask) {
uint32x4_t m = mask.u.u32x4[0];
uint64_t vmax = vgetq_lane_u64 (vreinterpretq_u64_u32 (vpmaxq_u32(m, m)), 0);
if (vmax != 0) {
@@ -48,7 +85,7 @@ const u8 *firstMatch<16>(const u8 *buf, SuperVector<16> mask) {
template <>
really_really_inline
const u8 *lastMatch<16>(const u8 *buf, SuperVector<16> mask) {
const u8 *last_zero_match_inverted<16>(const u8 *buf, SuperVector<16> mask) {
uint32x4_t m = mask.u.u32x4[0];
uint64_t vmax = vgetq_lane_u64 (vreinterpretq_u64_u32 (vpmaxq_u32(m, m)), 0);
if (vmax != 0) {