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FDR: front end loop improvement

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Wang, Xiang W
2017-01-23 17:15:40 -05:00
committed by Matthew Barr
parent 7b5c4c85cc
commit 90216921b0
4 changed files with 169 additions and 141 deletions
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14
src/util/simd_utils.h
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@@ -1,5 +1,5 @@
/*
* Copyright (c) 2015-2016, Intel Corporation
* Copyright (c) 2015-2017, Intel Corporation
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
@@ -180,15 +180,9 @@ static really_inline u64a movq(const m128 in) {
/* another form of movq */
static really_inline
m128 load_m128_from_u64a(const u64a *p) {
#if defined(__GNUC__) && !defined(__INTEL_COMPILER)
/* unfortunately _mm_loadl_epi64() is best avoided as it seems to cause
* trouble on some older compilers, possibly because it is misdefined to
* take an m128 as its parameter */
return _mm_set_epi64((__m64)0ULL, (__m64)*p);
#else
/* ICC doesn't like casting to __m64 */
return _mm_loadl_epi64((const m128 *)p);
#endif
m128 out;
__asm__ ("vmovq\t%1,%0" : "=x"(out) :"m"(*p));
return out;
}
#define rshiftbyte_m128(a, count_immed) _mm_srli_si128(a, count_immed)