43 lines
2.5 KiB
C
43 lines
2.5 KiB
C
#ifndef COSMOPOLITAN_LIBC_INTRIN_MPSADBW_H_
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#define COSMOPOLITAN_LIBC_INTRIN_MPSADBW_H_
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#include "libc/intrin/macros.h"
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#if !(__ASSEMBLER__ + __LINKER__ + 0)
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COSMOPOLITAN_C_START_
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void mpsadbw(uint16_t[8], const uint8_t[16], const uint8_t[16], uint8_t);
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#ifndef __STRICT_ANSI__
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__intrin_xmm_t __mpsadbws(__intrin_xmm_t, __intrin_xmm_t);
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#define mpsadbw(C, B, A, I) \
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do { \
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if (__builtin_expect(!IsModeDbg() && X86_NEED(SSE) && X86_HAVE(SSE4_1), \
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1)) { \
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__intrin_xmm_t *Xmm0 = (void *)(C); \
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const __intrin_xmm_t *Xmm1 = (const __intrin_xmm_t *)(B); \
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const __intrin_xmm_t *Xmm2 = (const __intrin_xmm_t *)(A); \
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if (__builtin_constant_p(I)) { \
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if (!X86_NEED(AVX)) { \
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asm("mpsadbw\t%2,%1,%0" \
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: "=x"(*Xmm0) \
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: "x"(*Xmm2), "i"(I), "0"(*Xmm1)); \
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} else { \
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asm("vmpsadbw\t%3,%2,%1,%0" \
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: "=x"(*Xmm0) \
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: "x"(*Xmm1), "x"(*Xmm2), "i"(I)); \
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} \
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} else { \
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unsigned long Vimm = (I); \
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typeof(__mpsadbws) *Fn; \
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Fn = (typeof(__mpsadbws) *)((uintptr_t)&__mpsadbws + (Vimm & 7) * 8); \
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*Xmm0 = Fn(*Xmm1, *Xmm2); \
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} \
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} else { \
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mpsadbw(C, B, A, I); \
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} \
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} while (0)
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#endif
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COSMOPOLITAN_C_END_
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#endif /* !(__ASSEMBLER__ + __LINKER__ + 0) */
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#endif /* COSMOPOLITAN_LIBC_INTRIN_MPSADBW_H_ */
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