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ksw2_dispatch.c
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ksw2_dispatch.c
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#ifdef KSW_CPU_DISPATCH
#include <stdlib.h>
#include "ksw2.h"
#define SIMD_SSE 0x1
#define SIMD_SSE2 0x2
#define SIMD_SSE3 0x4
#define SIMD_SSSE3 0x8
#define SIMD_SSE4_1 0x10
#define SIMD_SSE4_2 0x20
#define SIMD_AVX 0x40
#define SIMD_AVX2 0x80
#define SIMD_AVX512F 0x100
#ifndef _MSC_VER
// adapted from https://github.com/01org/linux-sgx/blob/master/common/inc/internal/linux/cpuid_gnu.h
void __cpuidex(int cpuid[4], int func_id, int subfunc_id)
{
#if defined(__x86_64__)
asm volatile ("cpuid"
: "=a" (cpuid[0]), "=b" (cpuid[1]), "=c" (cpuid[2]), "=d" (cpuid[3])
: "0" (func_id), "2" (subfunc_id));
#else // on 32bit, ebx can NOT be used as PIC code
asm volatile ("xchgl %%ebx, %1; cpuid; xchgl %%ebx, %1"
: "=a" (cpuid[0]), "=r" (cpuid[1]), "=c" (cpuid[2]), "=d" (cpuid[3])
: "0" (func_id), "2" (subfunc_id));
#endif
}
#endif
int x86_simd(void)
{
int flag = 0, cpuid[4], max_id;
__cpuidex(cpuid, 0, 0);
max_id = cpuid[0];
if (max_id == 0) return 0;
__cpuidex(cpuid, 1, 0);
if (cpuid[3]>>25&1) flag |= SIMD_SSE;
if (cpuid[3]>>26&1) flag |= SIMD_SSE2;
if (cpuid[2]>>0 &1) flag |= SIMD_SSE3;
if (cpuid[2]>>9 &1) flag |= SIMD_SSSE3;
if (cpuid[2]>>19&1) flag |= SIMD_SSE4_1;
if (cpuid[2]>>20&1) flag |= SIMD_SSE4_2;
if (cpuid[2]>>28&1) flag |= SIMD_AVX;
if (max_id >= 7) {
__cpuidex(cpuid, 7, 0);
if (cpuid[1]>>5 &1) flag |= SIMD_AVX2;
if (cpuid[1]>>16&1) flag |= SIMD_AVX512F;
}
return flag;
}
void ksw_extz2_sse(void *km, int qlen, const uint8_t *query, int tlen, const uint8_t *target, int8_t m, const int8_t *mat, int8_t q, int8_t e, int w, int zdrop, int end_bonus, int flag, ksw_extz_t *ez)
{
extern void ksw_extz2_sse2(void *km, int qlen, const uint8_t *query, int tlen, const uint8_t *target, int8_t m, const int8_t *mat, int8_t q, int8_t e, int w, int zdrop, int end_bonus, int flag, ksw_extz_t *ez);
extern void ksw_extz2_sse41(void *km, int qlen, const uint8_t *query, int tlen, const uint8_t *target, int8_t m, const int8_t *mat, int8_t q, int8_t e, int w, int zdrop, int end_bonus, int flag, ksw_extz_t *ez);
unsigned simd;
simd = x86_simd();
if (simd & SIMD_SSE4_1)
ksw_extz2_sse41(km, qlen, query, tlen, target, m, mat, q, e, w, zdrop, end_bonus, flag, ez);
else if (simd & SIMD_SSE2)
ksw_extz2_sse2(km, qlen, query, tlen, target, m, mat, q, e, w, zdrop, end_bonus, flag, ez);
else abort();
}
void ksw_extd2_sse(void *km, int qlen, const uint8_t *query, int tlen, const uint8_t *target, int8_t m, const int8_t *mat,
int8_t q, int8_t e, int8_t q2, int8_t e2, int w, int zdrop, int end_bonus, int flag, ksw_extz_t *ez)
{
extern void ksw_extd2_sse2(void *km, int qlen, const uint8_t *query, int tlen, const uint8_t *target, int8_t m, const int8_t *mat,
int8_t q, int8_t e, int8_t q2, int8_t e2, int w, int zdrop, int end_bonus, int flag, ksw_extz_t *ez);
extern void ksw_extd2_sse41(void *km, int qlen, const uint8_t *query, int tlen, const uint8_t *target, int8_t m, const int8_t *mat,
int8_t q, int8_t e, int8_t q2, int8_t e2, int w, int zdrop, int end_bonus, int flag, ksw_extz_t *ez);
unsigned simd;
simd = x86_simd();
if (simd & SIMD_SSE4_1)
ksw_extd2_sse41(km, qlen, query, tlen, target, m, mat, q, e, q2, e2, w, zdrop, end_bonus, flag, ez);
else if (simd & SIMD_SSE2)
ksw_extd2_sse2(km, qlen, query, tlen, target, m, mat, q, e, q2, e2, w, zdrop, end_bonus, flag, ez);
else abort();
}
void ksw_exts2_sse(void *km, int qlen, const uint8_t *query, int tlen, const uint8_t *target, int8_t m, const int8_t *mat,
int8_t q, int8_t e, int8_t q2, int8_t noncan, int zdrop, int flag, ksw_extz_t *ez)
{
extern void ksw_exts2_sse2(void *km, int qlen, const uint8_t *query, int tlen, const uint8_t *target, int8_t m, const int8_t *mat,
int8_t q, int8_t e, int8_t q2, int8_t noncan, int zdrop, int flag, ksw_extz_t *ez);
extern void ksw_exts2_sse41(void *km, int qlen, const uint8_t *query, int tlen, const uint8_t *target, int8_t m, const int8_t *mat,
int8_t q, int8_t e, int8_t q2, int8_t noncan, int zdrop, int flag, ksw_extz_t *ez);
unsigned simd;
simd = x86_simd();
if (simd & SIMD_SSE4_1)
ksw_exts2_sse41(km, qlen, query, tlen, target, m, mat, q, e, q2, noncan, zdrop, flag, ez);
else if (simd & SIMD_SSE2)
ksw_exts2_sse2(km, qlen, query, tlen, target, m, mat, q, e, q2, noncan, zdrop, flag, ez);
else abort();
}
#endif