30 lines
777 B
C
30 lines
777 B
C
#include <errno.h>
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#include "headers/truncf4.h"
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#include "headers/tgammaf4.h"
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static __inline float _tgammaf(float x)
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{
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float res;
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vector float vx;
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vector float truncx;
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vector float vc = { 0.0, 0.0 };
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vector unsigned int 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(_tgammaf4(vx), 0);
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#ifndef _IEEE_LIBM
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/*
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* use vector truncf4 rather than splat x, and splat truncx.
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*/
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truncx = _truncf4(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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