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31 lines
789 B
C
31 lines
789 B
C
#include <errno.h>
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#include "headers/truncd2.h"
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#include "headers/tgammad2.h"
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static __inline double _tgamma(double x)
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{
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double res;
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vector double vx;
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vector double truncx;
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vector double vc = { 0.0, 0.0 };
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vector unsigned long long cmpres;
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vector signed int verrno, ferrno;
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vector signed int fail = { EDOM, EDOM, EDOM, EDOM };
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vx = spu_promote(x, 0);
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res = spu_extract(_tgammad2(vx), 0);
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#ifndef _IEEE_LIBM
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/*
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* use vector truncd2 rather than splat x, and splat truncx.
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*/
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truncx = _truncd2(vx);
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cmpres = spu_cmpeq(truncx, vx);
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verrno = spu_splats(errno);
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ferrno = spu_sel(verrno, fail, (vector unsigned int) cmpres);
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cmpres = spu_cmpgt(vc, vx);
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errno = spu_extract(spu_sel(verrno, ferrno, (vector unsigned int) cmpres), 0);
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#endif
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return res;
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}
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