39 lines
2.1 KiB
C
39 lines
2.1 KiB
C
#ifndef COSMOPOLITAN_LIBC_INTRIN_PSLLDQ_H_
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#define COSMOPOLITAN_LIBC_INTRIN_PSLLDQ_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 pslldq(uint8_t[16], const uint8_t[16], unsigned long);
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#ifndef __STRICT_ANSI__
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__intrin_xmm_t __pslldqs(__intrin_xmm_t);
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#define pslldq(B, A, I) \
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do { \
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if (__builtin_expect(!IsModeDbg() && X86_NEED(SSE) && X86_HAVE(SSE2), \
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1)) { \
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__intrin_xmm_t *Xmm0 = (void *)(B); \
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const __intrin_xmm_t *Xmm1 = (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("pslldq\t%1,%0" : "=x"(*Xmm0) : "i"(I), "0"(*Xmm1)); \
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} else { \
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asm("vpslldq\t%2,%1,%0" : "=x"(*Xmm0) : "x"(*Xmm1), "i"(I)); \
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} \
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} else { \
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unsigned long Vimm = (I); \
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typeof(__pslldqs) *Fn; \
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if (Vimm > 16) Vimm = 16; \
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Fn = (typeof(__pslldqs) *)((uintptr_t)&__pslldqs + Vimm * 8); \
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*Xmm0 = Fn(*Xmm1); \
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} \
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} else { \
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pslldq(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_PSLLDQ_H_ */
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