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git://sourceware.org/git/newlib-cygwin.git
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3cc8a378d1
Jeff Johnston <jjohnstn@redhhat.com>
* libc/include/_ansi.h: Add _LONG_LONG definition.
* libc/include/math.h (llrint, llrintf, rintl, lrintl, llrintl): Add
prototypes.
* libc/machine/i386/machine/fastmath.h: Add support for new i386
fast math versions of rint, lrint, and llrint family functions.
* libm/machine/i386/Makefile.am: Add new files.
* libm/machine/i386/Makefile.in: Regenerated.
* libm/machine/i386/f_llrint.c, libm/machine/i386/f_lrint.c,
libm/machine/i386/f_rint.c, libm/machine/i386/f_llrintf.c,
libm/machine/i386/f_lrintf.c, libm/machine/i386/f_rintf.c,
libm/machine/i386/f_llrintl.c, libm/machine/i386/f_lrintl.c,
libm/machine/i386/f_rintl.c: New files with fast math implementations.
39 lines
908 B
C
39 lines
908 B
C
/*
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* ====================================================
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* x87 FP implementation contributed to Newlib by
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* Dave Korn, November 2007. This file is placed in the
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* public domain. Permission to use, copy, modify, and
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* distribute this software is freely granted.
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* ====================================================
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*/
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#ifdef __GNUC__
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#if !defined(_SOFT_FLOAT)
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#include <math.h>
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/*
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* Fast math version of llrintl(x)
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* Return x rounded to integral value according to the prevailing
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* rounding mode.
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* Method:
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* Using inline x87 asms.
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* Exception:
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* Governed by x87 FPCR.
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*/
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long long int _f_llrintl (long double x)
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{
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long long int _result;
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asm ("fistpll %0" : "=m" (_result) : "t" (x) : "st");
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return _result;
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}
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/* For now, we only have the fast math version. */
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long long int llrintl (long double x) {
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return _f_llrintl(x);
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}
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#endif /* !_SOFT_FLOAT */
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#endif /* __GNUC__ */
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