mirror of
https://github.com/jart/cosmopolitan.git
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fa20edc44d
- Remove most __ASSEMBLER__ __LINKER__ ifdefs - Rename libc/intrin/bits.h to libc/serialize.h - Block pthread cancelation in fchmodat() polyfill - Remove `clang-format off` statements in third_party
28 lines
1.2 KiB
C
28 lines
1.2 KiB
C
#ifndef COSMOPOLITAN_LIBC_INTRIN_PMOVMSKB_H_
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#define COSMOPOLITAN_LIBC_INTRIN_PMOVMSKB_H_
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#include "libc/intrin/macros.h"
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COSMOPOLITAN_C_START_
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uint32_t pmovmskb(const uint8_t[16]);
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#if defined(__x86_64__) && defined(__GNUC__)
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#define pmovmskb(A) \
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({ \
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uint32_t Mask; \
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if (!IsModeDbg() && X86_HAVE(SSE2)) { \
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const __intrin_xmm_t *Xmm = (const __intrin_xmm_t *)(A); \
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if (!X86_NEED(AVX)) { \
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asm("pmovmskb\t%1,%0" : "=r"(Mask) : "x"(*Xmm)); \
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} else { \
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asm("vpmovmskb\t%1,%0" : "=r"(Mask) : "x"(*Xmm)); \
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} \
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} else { \
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Mask = pmovmskb(A); \
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} \
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Mask; \
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})
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#endif
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COSMOPOLITAN_C_END_
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#endif /* COSMOPOLITAN_LIBC_INTRIN_PMOVMSKB_H_ */
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