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reorder instructions, for some reason it's faster on x86 but slower on arm, needs investigation

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Konstantinos Margaritis 2024-02-19 20:37:46 +08:00
parent 880d6bcbf0
commit a5fdbcb873
1 changed files with 43 additions and 37 deletions
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78
src/fdr/fdr.c
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@ -104,7 +104,7 @@ m128 getInitState(const struct FDR *fdr, u8 len_history, const u64a *ft,
return s;
}
#include "../print_simd.h"
//#include "../print_simd.h"
static really_inline
void get_conf_stride_1(const u8 *itPtr, UNUSED const u8 *start_ptr,
@ -158,21 +158,50 @@ void get_conf_stride_1(const u8 *itPtr, UNUSED const u8 *start_ptr,
store128(&reach[12], reach_v[3]);
m128 st0 = load_m128_from_u64a(ft + reach[0]);
m128 st4 = load_m128_from_u64a(ft + reach[1]);
m128 st8 = load_m128_from_u64a(ft + reach[2]);
m128 st12 = load_m128_from_u64a(ft + reach[3]);
m128 st1 = load_m128_from_u64a(ft + reach[4]);
m128 st5 = load_m128_from_u64a(ft + reach[5]);
m128 st9 = load_m128_from_u64a(ft + reach[6]);
m128 st13 = load_m128_from_u64a(ft + reach[7]);
st1 = lshiftbyte_m128(st1, 1);
st0 = or128(st0, st1);
m128 st2 = load_m128_from_u64a(ft + reach[8]);
m128 st6 = load_m128_from_u64a(ft + reach[9]);
m128 st10 = load_m128_from_u64a(ft + reach[10]);
m128 st14 = load_m128_from_u64a(ft + reach[11]);
st2 = lshiftbyte_m128(st2, 2);
m128 st3 = load_m128_from_u64a(ft + reach[12]);
st3 = lshiftbyte_m128(st3, 3);
st2 = or128(st2, st3);
m128 st4 = load_m128_from_u64a(ft + reach[1]);
st4 = lshiftbyte_m128(st4, 4);
m128 st5 = load_m128_from_u64a(ft + reach[5]);
st5 = lshiftbyte_m128(st5, 5);
st4 = or128(st4, st5);
m128 st6 = load_m128_from_u64a(ft + reach[9]);
st6 = lshiftbyte_m128(st6, 6);
m128 st7 = load_m128_from_u64a(ft + reach[13]);
st7 = lshiftbyte_m128(st7, 7);
st6 = or128(st6, st7);
m128 st8 = load_m128_from_u64a(ft + reach[2]);
m128 st9 = load_m128_from_u64a(ft + reach[6]);
st9 = lshiftbyte_m128(st9, 1);
st8 = or128(st8, st9);
m128 st10 = load_m128_from_u64a(ft + reach[10]);
st10 = lshiftbyte_m128(st10, 2);
m128 st11 = load_m128_from_u64a(ft + reach[14]);
st11 = lshiftbyte_m128(st11, 3);
st10 = or128(st10, st11);
m128 st12 = load_m128_from_u64a(ft + reach[3]);
st12 = lshiftbyte_m128(st12, 4);
m128 st13 = load_m128_from_u64a(ft + reach[7]);
st13 = lshiftbyte_m128(st13, 5);
st12 = or128(st12, st13);
m128 st14 = load_m128_from_u64a(ft + reach[11]);
st14 = lshiftbyte_m128(st14, 6);
m128 st15 = load_m128_from_u64a(ft + reach[15]);
st15 = lshiftbyte_m128(st15, 7);
st14 = or128(st14, st15);
// m128 st0 = load_m128_from_u64a((u64a *)reach[0]);
// m128 st4 = load_m128_from_u64a((u64a *)reach[1]);
// m128 st8 = load_m128_from_u64a((u64a *)reach[2]);
@ -190,42 +219,19 @@ void get_conf_stride_1(const u8 *itPtr, UNUSED const u8 *start_ptr,
// m128 st11 = load_m128_from_u64a((u64a *)reach[14]);
// m128 st15 = load_m128_from_u64a((u64a *)reach[15]);
st1 = lshiftbyte_m128(st1, 1);
st2 = lshiftbyte_m128(st2, 2);
st3 = lshiftbyte_m128(st3, 3);
st4 = lshiftbyte_m128(st4, 4);
st5 = lshiftbyte_m128(st5, 5);
st6 = lshiftbyte_m128(st6, 6);
st7 = lshiftbyte_m128(st7, 7);
st9 = lshiftbyte_m128(st9, 1);
st10 = lshiftbyte_m128(st10, 2);
st11 = lshiftbyte_m128(st11, 3);
st12 = lshiftbyte_m128(st12, 4);
st13 = lshiftbyte_m128(st13, 5);
st14 = lshiftbyte_m128(st14, 6);
st15 = lshiftbyte_m128(st15, 7);
st0 = or128(st0, st1);
st2 = or128(st2, st3);
st4 = or128(st4, st5);
st6 = or128(st6, st7);
st0 = or128(st0, st2);
st4 = or128(st4, st6);
st0 = or128(st0, st4);
m128 st = or128(*s, st0);
*conf0 = movq(st) ^ ~0ULL;
st = rshiftbyte_m128(st, 8);
st8 = or128(st8, st9);
st10 = or128(st10, st11);
st12 = or128(st12, st13);
st14 = or128(st14, st15);
st8 = or128(st8, st10);
st12 = or128(st12, st14);
st8 = or128(st8, st12);
m128 st = or128(*s, st0);
*conf0 = movq(st) ^ ~0ULL;
st = rshiftbyte_m128(st, 8);
st = or128(st, st8);
*conf8 = movq(st) ^ ~0ULL;
*s = rshiftbyte_m128(st, 8);
}