30 lines
924 B
C
30 lines
924 B
C
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/**
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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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#if defined(__arm__) || defined(_ARM_)
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/* This works around a compiler bug */
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double __rint_internal( double x );
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asm(".def __rint_internal; .scl 2; .type 32; .endef\n"
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"\t.text\n"
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"\t.align 4\n"
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"\t.globl __rint_internal\n"
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"__rint_internal:\n"
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"\tvcvtr.s32.f64 s0, d0\n"
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"\tvcvt.f64.s32 d0, s0\n"
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"\tbx lr");
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#endif /* defined(__arm__) || defined(_ARM_) */
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double rint (double x) {
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double retval = 0.0;
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#if defined(_AMD64_) || defined(__x86_64__) || defined(_X86_) || defined(__i386__)
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__asm__ __volatile__ ("frndint;" : "=t" (retval) : "0" (x));
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#elif defined(__arm__) || defined(_ARM_)
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retval = __rint_internal(x);
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#endif
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return retval;
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}
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