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rose: add new instruction CHECK_MASK_32

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This is a specialisation of the "lookaround" code.
This commit is contained in:
Xu, Chi
2016-07-22 03:35:53 +08:00
committed by Matthew Barr
parent 8be6c8b2ca
commit b96d5c23d1
10 changed files with 545 additions and 3 deletions
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86
src/util/copybytes.h Normal file
View File

@@ -0,0 +1,86 @@
/*
* Copyright (c) 2016, Intel Corporation
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* * Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* * Neither the name of Intel Corporation nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef COPY_BYTES_H
#define COPY_BYTES_H
#include "unaligned.h"
#include "simd_utils.h"
static really_inline
void copy_upto_32_bytes(u8 *dst, const u8 *src, unsigned int len) {
switch (len) {
case 0:
break;
case 1:
*dst = *src;
break;
case 2:
unaligned_store_u16(dst, unaligned_load_u16(src));
break;
case 3:
unaligned_store_u16(dst, unaligned_load_u16(src));
dst[2] = src[2];
break;
case 4:
unaligned_store_u32(dst, unaligned_load_u32(src));
break;
case 5:
case 6:
case 7:
unaligned_store_u32(dst + len - 4, unaligned_load_u32(src + len - 4));
unaligned_store_u32(dst, unaligned_load_u32(src));
break;
case 8:
unaligned_store_u64a(dst, unaligned_load_u64a(src));
break;
case 9:
case 10:
case 11:
case 12:
case 13:
case 14:
case 15:
unaligned_store_u64a(dst + len - 8, unaligned_load_u64a(src + len - 8));
unaligned_store_u64a(dst, unaligned_load_u64a(src));
break;
case 16:
storeu128(dst, loadu128(src));
break;
case 32:
storeu256(dst, loadu256(src));
break;
default:
assert(len < 32);
storeu128(dst + len - 16, loadu128(src + len - 16));
storeu128(dst, loadu128(src));
break;
}
}
#endif

26
src/util/simd_utils.h
View File

@@ -71,6 +71,7 @@
#include "ue2common.h"
#include "simd_types.h"
#include "unaligned.h"
// Define a common assume_aligned using an appropriate compiler built-in, if
// it's available. Note that we need to handle C or C++ compilation.
@@ -354,6 +355,21 @@ m256 set32x8(u32 in) {
return rv;
}
static really_inline
m256 eq256(m256 a, m256 b) {
m256 rv;
rv.lo = eq128(a.lo, b.lo);
rv.hi = eq128(a.hi, b.hi);
return rv;
}
static really_inline
u32 movemask256(m256 a) {
u32 lo_mask = movemask128(a.lo);
u32 hi_mask = movemask128(a.hi);
return lo_mask | (hi_mask << 16);
}
#endif
static really_inline m256 zeroes256(void) {
@@ -525,6 +541,16 @@ static really_inline m256 loadu256(const void *ptr) {
#endif
}
// unaligned store
static really_inline void storeu256(void *ptr, m256 a) {
#if defined(__AVX2__)
_mm256_storeu_si256((m256 *)ptr, a);
#else
storeu128(ptr, a.lo);
storeu128((char *)ptr + 16, a.hi);
#endif
}
// packed unaligned store of first N bytes
static really_inline
void storebytes256(void *ptr, m256 a, unsigned int n) {