49d1a4c562
also start prefering NtDll API. so far: * NtQueryInformationFile * NtClose adds a performance workaround for windows unicode conversion. but that should probably be removed before merging
27 lines
844 B
C
27 lines
844 B
C
/**
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* This file has no copyright assigned and is placed in the Public Domain.
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* This file is part of the mingw-w64 runtime package.
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* No warranty is given; refer to the file DISCLAIMER.PD within this package.
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*/
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#include <math.h>
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long lrint (double x)
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{
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long retval = 0L;
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#if defined(_AMD64_) || defined(__x86_64__) || defined(_X86_) || defined(__i386__)
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__asm__ __volatile__ ("fistpl %0" : "=m" (retval) : "t" (x) : "st");
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#elif defined(__arm__) || defined(_ARM_)
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float temp;
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__asm__ __volatile__ (
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"vcvtr.s32.f64 %[tmp], %[src]\n\t"
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"fmrs %[dst], %[tmp]\n\t"
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: [dst] "=r" (retval), [tmp] "=t" (temp) : [src] "w" (x));
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#elif defined(__aarch64__) || defined(_ARM64_)
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__asm__ __volatile__ (
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"frintx %d1, %d1\n\t"
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"fcvtzs %w0, %d1\n\t"
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: "=r" (retval), "+w" (x));
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#endif
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return retval;
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}
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