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noodle: use SSE palignr

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This commit is contained in:
Matthew Barr 2016-04-21 15:39:47 +10:00
parent 75195f5f2e
commit fe8ffc5544
2 changed files with 5 additions and 4 deletions
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3
src/hwlm/noodle_engine.c
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@ -1,5 +1,5 @@
/*
* Copyright (c) 2015, Intel Corporation
* Copyright (c) 2015-2016, Intel Corporation
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
@ -37,6 +37,7 @@
#include "util/compare.h"
#include "util/masked_move.h"
#include "util/simd_utils.h"
#include "util/simd_utils_ssse3.h"
#include <ctype.h>
#include <stdbool.h>

6
src/hwlm/noodle_engine_sse.c
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@ -1,5 +1,5 @@
/*
* Copyright (c) 2015, Intel Corporation
* Copyright (c) 2015-2016, Intel Corporation
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
@ -190,8 +190,8 @@ hwlm_error_t scanDoubleFast(const u8 *buf, size_t len, const u8 *key,
m128 v = noCase ? and128(load128(d), caseMask) : load128(d);
m128 z1 = eq128(mask1, v);
m128 z2 = eq128(mask2, v);
u32 z = movemask128(and128(or128(lastz1, shiftLeft8Bits(z1)), z2));
lastz1 = _mm_srli_si128(z1, 15);
u32 z = movemask128(and128(palignr(z1, lastz1, 15), z2));
lastz1 = z1;
// On large packet buffers, this prefetch appears to get us about 2%.
__builtin_prefetch(d + 128);