diff options
Diffstat (limited to 'newlib/libm/machine/spu/headers/tgammaf.h')
-rw-r--r-- | newlib/libm/machine/spu/headers/tgammaf.h | 25 |
1 files changed, 24 insertions, 1 deletions
diff --git a/newlib/libm/machine/spu/headers/tgammaf.h b/newlib/libm/machine/spu/headers/tgammaf.h index c555d35b2..a30928c60 100644 --- a/newlib/libm/machine/spu/headers/tgammaf.h +++ b/newlib/libm/machine/spu/headers/tgammaf.h @@ -1,6 +1,29 @@ +#include <errno.h> +#include "headers/truncf4.h" #include "headers/tgammaf4.h" static __inline float _tgammaf(float x) { - return spu_extract(_tgammaf4(spu_promote(x, 0)), 0); + float res; + vector float vx; + vector float truncx; + vector float vc = { 0.0, 0.0 }; + vector unsigned int cmpres; + vector signed int verrno, ferrno; + vector signed int fail = { EDOM, EDOM, EDOM, EDOM }; + + vx = spu_promote(x, 0); + res = spu_extract(_tgammaf4(vx), 0); +#ifndef _IEEE_LIBM + /* + * use vector truncf4 rather than splat x, and splat truncx. + */ + truncx = _truncf4(vx); + cmpres = spu_cmpeq(truncx, vx); + verrno = spu_splats(errno); + ferrno = spu_sel(verrno, fail, (vector unsigned int) cmpres); + cmpres = spu_cmpgt(vc, vx); + errno = spu_extract(spu_sel(verrno, ferrno, (vector unsigned int) cmpres), 0); +#endif + return res; } |