diff options
author | Jeff Johnston <jjohnstn@redhat.com> | 2007-09-28 18:44:24 +0000 |
---|---|---|
committer | Jeff Johnston <jjohnstn@redhat.com> | 2007-09-28 18:44:24 +0000 |
commit | e30a7b84aa1527df63f20fe0cb3605afab652d94 (patch) | |
tree | 62f7953f44d2d88dcb25b69693882e4e77a200b9 /newlib/libm/machine/spu/headers/log1pd2.h | |
parent | 505ea71432880e9464e407dc08b4648ae3566c9d (diff) | |
download | cygnal-e30a7b84aa1527df63f20fe0cb3605afab652d94.tar.gz cygnal-e30a7b84aa1527df63f20fe0cb3605afab652d94.tar.bz2 cygnal-e30a7b84aa1527df63f20fe0cb3605afab652d94.zip |
2007-09-28 Patrick Mansfield <patmans@us.ibm.com>
* libm/machine/spu/Makefile.am: Add new C files.
* libm/machine/spu/Makefile.in: Regenerate.
* libm/machine/spu/headers/acos.h: New file.
* libm/machine/spu/headers/acosd2.h: Ditto.
* libm/machine/spu/headers/acosf.h: Ditto.
* libm/machine/spu/headers/acosf4.h: Ditto.
* libm/machine/spu/headers/acosh.h: Ditto.
* libm/machine/spu/headers/acoshd2.h: Ditto.
* libm/machine/spu/headers/acoshf.h: Ditto.
* libm/machine/spu/headers/acoshf4.h: Ditto.
* libm/machine/spu/headers/asin.h: Ditto.
* libm/machine/spu/headers/asind2.h: Ditto.
* libm/machine/spu/headers/asinf.h: Ditto.
* libm/machine/spu/headers/asinf4.h: Ditto.
* libm/machine/spu/headers/asinh.h: Ditto.
* libm/machine/spu/headers/asinhd2.h: Ditto.
* libm/machine/spu/headers/asinhf.h: Ditto.
* libm/machine/spu/headers/asinhf4.h: Ditto.
* libm/machine/spu/headers/atan.h: Ditto.
* libm/machine/spu/headers/atan2.h: Ditto.
* libm/machine/spu/headers/atan2d2.h: Ditto.
* libm/machine/spu/headers/atan2f.h: Ditto.
* libm/machine/spu/headers/atan2f4.h: Ditto.
* libm/machine/spu/headers/atand2.h: Ditto.
* libm/machine/spu/headers/atanf4.h: Ditto.
* libm/machine/spu/headers/atanh.h: Ditto.
* libm/machine/spu/headers/atanhd2.h: Ditto.
* libm/machine/spu/headers/atanhf.h: Ditto.
* libm/machine/spu/headers/atanhf4.h: Ditto.
* libm/machine/spu/headers/cos.h: Ditto.
* libm/machine/spu/headers/cos_sin.h: Ditto.
* libm/machine/spu/headers/cosd2.h: Ditto.
* libm/machine/spu/headers/cosf.h: Ditto.
* libm/machine/spu/headers/cosf4.h: Ditto.
* libm/machine/spu/headers/cosh.h: Ditto.
* libm/machine/spu/headers/coshd2.h: Ditto.
* libm/machine/spu/headers/coshf.h: Ditto.
* libm/machine/spu/headers/coshf4.h: Ditto.
* libm/machine/spu/headers/divd2.h: Ditto.
* libm/machine/spu/headers/divf4.h: Ditto.
* libm/machine/spu/headers/erf.h: Ditto.
* libm/machine/spu/headers/erf_utils.h: Ditto.
* libm/machine/spu/headers/erfc.h: Ditto.
* libm/machine/spu/headers/erfcd2.h: Ditto.
* libm/machine/spu/headers/erfcf.h: Ditto.
* libm/machine/spu/headers/erfcf4.h: Ditto.
* libm/machine/spu/headers/erfd2.h: Ditto.
* libm/machine/spu/headers/erff.h: Ditto.
* libm/machine/spu/headers/erff4.h: Ditto.
* libm/machine/spu/headers/exp.h: Ditto.
* libm/machine/spu/headers/exp2.h: Ditto.
* libm/machine/spu/headers/exp2d2.h: Ditto.
* libm/machine/spu/headers/exp2f4.h: Ditto.
* libm/machine/spu/headers/expd2.h: Ditto.
* libm/machine/spu/headers/expf4.h: Ditto.
* libm/machine/spu/headers/expm1.h: Ditto.
* libm/machine/spu/headers/expm1d2.h: Ditto.
* libm/machine/spu/headers/expm1f.h: Ditto.
* libm/machine/spu/headers/expm1f4.h: Ditto.
* libm/machine/spu/headers/floord2.h: Ditto.
* libm/machine/spu/headers/floorf4.h: Ditto.
* libm/machine/spu/headers/hypot.h: Ditto.
* libm/machine/spu/headers/hypotd2.h: Ditto.
* libm/machine/spu/headers/hypotf.h: Ditto.
* libm/machine/spu/headers/hypotf4.h: Ditto.
* libm/machine/spu/headers/isnan.h: Ditto.
* libm/machine/spu/headers/isnand2.h: Ditto.
* libm/machine/spu/headers/isnanf.h: Ditto.
* libm/machine/spu/headers/isnanf4.h: Ditto.
* libm/machine/spu/headers/ldexpd2.h: Ditto.
* libm/machine/spu/headers/ldexpf4.h: Ditto.
* libm/machine/spu/headers/lgamma.h: Ditto.
* libm/machine/spu/headers/lgammad2.h: Ditto.
* libm/machine/spu/headers/lgammaf.h: Ditto.
* libm/machine/spu/headers/lgammaf4.h: Ditto.
* libm/machine/spu/headers/log.h: Ditto.
* libm/machine/spu/headers/log10.h: Ditto.
* libm/machine/spu/headers/log10d2.h: Ditto.
* libm/machine/spu/headers/log1p.h: Ditto.
* libm/machine/spu/headers/log1pd2.h: Ditto.
* libm/machine/spu/headers/log1pf.h: Ditto.
* libm/machine/spu/headers/log1pf4.h: Ditto.
* libm/machine/spu/headers/log2.h: Ditto.
* libm/machine/spu/headers/log2d2.h: Ditto.
* libm/machine/spu/headers/log2f4.h: Ditto.
* libm/machine/spu/headers/logbf.h: Ditto.
* libm/machine/spu/headers/logbf4.h: Ditto.
* libm/machine/spu/headers/logd2.h: Ditto.
* libm/machine/spu/headers/logf4.h: Ditto.
* libm/machine/spu/headers/nearbyintf.h: Ditto.
* libm/machine/spu/headers/nearbyintf4.h: Ditto.
* libm/machine/spu/headers/nextafter.h: Ditto.
* libm/machine/spu/headers/nextafterd2.h: Ditto.
* libm/machine/spu/headers/nextafterf.h: Ditto.
* libm/machine/spu/headers/nextafterf4.h: Ditto.
* libm/machine/spu/headers/pow.h: Ditto.
* libm/machine/spu/headers/powd2.h: Ditto.
* libm/machine/spu/headers/powf.h: Ditto.
* libm/machine/spu/headers/powf4.h: Ditto.
* libm/machine/spu/headers/recipd2.h: Ditto.
* libm/machine/spu/headers/recipf4.h: Ditto.
* libm/machine/spu/headers/rintf.h: Ditto.
* libm/machine/spu/headers/rintf4.h: Ditto.
* libm/machine/spu/headers/scalbnf4.h: Ditto.
* libm/machine/spu/headers/signbit.h: Ditto.
* libm/machine/spu/headers/signbitd2.h: Ditto.
* libm/machine/spu/headers/simdmath.h: Ditto.
* libm/machine/spu/headers/sin.h: Ditto.
* libm/machine/spu/headers/sincos.h: Ditto.
* libm/machine/spu/headers/sincosd2.h: Ditto.
* libm/machine/spu/headers/sincosf.h: Ditto.
* libm/machine/spu/headers/sincosf4.h: Ditto.
* libm/machine/spu/headers/sind2.h: Ditto.
* libm/machine/spu/headers/sinf.h: Ditto.
* libm/machine/spu/headers/sinf4.h: Ditto.
* libm/machine/spu/headers/sinh.h: Ditto.
* libm/machine/spu/headers/sinhd2.h: Ditto.
* libm/machine/spu/headers/sinhf.h: Ditto.
* libm/machine/spu/headers/sinhf4.h: Ditto.
* libm/machine/spu/headers/sqrtd2.h: Ditto.
* libm/machine/spu/headers/sqrtf.h: Ditto.
* libm/machine/spu/headers/sqrtf4.h: Ditto.
* libm/machine/spu/headers/tan.h: Ditto.
* libm/machine/spu/headers/tand2.h: Ditto.
* libm/machine/spu/headers/tanf.h: Ditto.
* libm/machine/spu/headers/tanf4.h: Ditto.
* libm/machine/spu/headers/tanh.h: Ditto.
* libm/machine/spu/headers/tanhd2.h: Ditto.
* libm/machine/spu/headers/tanhf.h: Ditto.
* libm/machine/spu/headers/tanhf4.h: Ditto.
* libm/machine/spu/headers/tgamma.h: Ditto.
* libm/machine/spu/headers/tgammad2.h: Ditto.
* libm/machine/spu/headers/tgammaf.h: Ditto.
* libm/machine/spu/headers/tgammaf4.h: Ditto.
* libm/machine/spu/headers/truncd2.h: Ditto.
* libm/machine/spu/headers/truncf4.h: Ditto.
* libm/machine/spu/log2.c: Ditto.
* libm/machine/spu/s_asinh.c: Ditto.
* libm/machine/spu/s_atan.c: Ditto.
* libm/machine/spu/s_cos.c: Ditto.
* libm/machine/spu/s_erf.c: Ditto.
* libm/machine/spu/s_expm1.c: Ditto.
* libm/machine/spu/s_isnan.c: Ditto.
* libm/machine/spu/s_log1p.c: Ditto.
* libm/machine/spu/s_nextafter.c: Ditto.
* libm/machine/spu/s_sin.c: Ditto.
* libm/machine/spu/s_tan.c: Ditto.
* libm/machine/spu/s_tanh.c: Ditto.
* libm/machine/spu/sf_asinh.c: Ditto.
* libm/machine/spu/sf_cos.c: Ditto.
* libm/machine/spu/sf_erf.c: Ditto.
* libm/machine/spu/sf_expm1.c: Ditto.
* libm/machine/spu/sf_log1p.c: Ditto.
* libm/machine/spu/sf_logb.c: Ditto.
* libm/machine/spu/sf_nearbyint.c: Ditto.
* libm/machine/spu/sf_nextafter.c: Ditto.
* libm/machine/spu/sf_rint.c: Ditto.
* libm/machine/spu/sf_sin.c: Ditto.
* libm/machine/spu/sf_tan.c: Ditto.
* libm/machine/spu/sf_tanh.c: Ditto.
* libm/machine/spu/w_acos.c: Ditto.
* libm/machine/spu/w_acosh.c: Ditto.
* libm/machine/spu/w_asin.c: Ditto.
* libm/machine/spu/w_atan2.c: Ditto.
* libm/machine/spu/w_atanh.c: Ditto.
* libm/machine/spu/w_cosh.c: Ditto.
* libm/machine/spu/w_exp.c: Ditto.
* libm/machine/spu/w_exp2.c: Ditto.
* libm/machine/spu/w_hypot.c: Ditto.
* libm/machine/spu/w_lgamma.c: Ditto.
* libm/machine/spu/w_log.c: Ditto.
* libm/machine/spu/w_log10.c: Ditto.
* libm/machine/spu/w_pow.c: Ditto.
* libm/machine/spu/w_sincos.c: Ditto.
* libm/machine/spu/w_sinh.c: Ditto.
* libm/machine/spu/w_tgamma.c: Ditto.
* libm/machine/spu/wf_acos.c: Ditto.
* libm/machine/spu/wf_acosh.c: Ditto.
* libm/machine/spu/wf_asin.c: Ditto.
* libm/machine/spu/wf_atan2.c: Ditto.
* libm/machine/spu/wf_atanh.c: Ditto.
* libm/machine/spu/wf_cosh.c: Ditto.
* libm/machine/spu/wf_hypot.c: Ditto.
* libm/machine/spu/wf_lgamma.c: Ditto.
* libm/machine/spu/wf_pow.c: Ditto.
* libm/machine/spu/wf_sincos.c: Ditto.
* libm/machine/spu/wf_sinh.c: Ditto.
* libm/machine/spu/wf_sqrt.c: Ditto.
* libm/machine/spu/wf_tgamma.c: Ditto.
Diffstat (limited to 'newlib/libm/machine/spu/headers/log1pd2.h')
-rw-r--r-- | newlib/libm/machine/spu/headers/log1pd2.h | 137 |
1 files changed, 137 insertions, 0 deletions
diff --git a/newlib/libm/machine/spu/headers/log1pd2.h b/newlib/libm/machine/spu/headers/log1pd2.h new file mode 100644 index 000000000..0433f37b8 --- /dev/null +++ b/newlib/libm/machine/spu/headers/log1pd2.h @@ -0,0 +1,137 @@ +/* -------------------------------------------------------------- */ +/* (C)Copyright 2006,2007, */ +/* International Business Machines Corporation */ +/* All Rights Reserved. */ +/* */ +/* Redistribution and use in source and binary forms, with or */ +/* without modification, are permitted provided that the */ +/* following conditions are met: */ +/* */ +/* - Redistributions of source code must retain the above copyright*/ +/* notice, this list of conditions and the following disclaimer. */ +/* */ +/* - Redistributions in binary form must reproduce the above */ +/* copyright notice, this list of conditions and the following */ +/* disclaimer in the documentation and/or other materials */ +/* provided with the distribution. */ +/* */ +/* - Neither the name of IBM Corporation nor the names of its */ +/* contributors may be used to endorse or promote products */ +/* derived from this software without specific prior written */ +/* permission. */ +/* Redistributions of source code must retain the above copyright */ +/* notice, this list of conditions and the following disclaimer. */ +/* */ +/* Redistributions in binary form must reproduce the above */ +/* copyright notice, this list of conditions and the following */ +/* disclaimer in the documentation and/or other materials */ +/* provided with the distribution. */ +/* */ +/* Neither the name of IBM Corporation nor the names of its */ +/* contributors may be used to endorse or promote products */ +/* derived from this software without specific prior written */ +/* permission. */ +/* */ +/* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND */ +/* CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, */ +/* INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF */ +/* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE */ +/* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR */ +/* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, */ +/* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT */ +/* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; */ +/* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) */ +/* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN */ +/* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR */ +/* OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, */ +/* EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ +/* -------------------------------------------------------------- */ +/* PROLOG END TAG zYx */ + +#ifdef __SPU__ +#ifndef _LOG1PD2_H_ +#define _LOG1PD2_H_ 1 + +#include <spu_intrinsics.h> +#include "simdmath.h" + +#include "logd2.h" +#include "divd2.h" + + + +#define LOG1PD2_P0 0.0000000000000000000000000e+00 +#define LOG1PD2_P1 1.0000000000000000000000000e+00 +#define LOG1PD2_P2 2.3771612265431403265836252e+00 +#define LOG1PD2_P3 2.0034423569559494104908026e+00 +#define LOG1PD2_P4 7.1309327316770110272159400e-01 +#define LOG1PD2_P5 9.8219761968547217301228613e-02 +#define LOG1PD2_P6 3.4385125174546914139650511e-03 + +#define LOG1PD2_Q0 1.0000000000000000000000000e+00 +#define LOG1PD2_Q1 2.8771612265431403265836252e+00 +#define LOG1PD2_Q2 3.1086896368941925317130881e+00 +#define LOG1PD2_Q3 1.5583843494335058998956356e+00 +#define LOG1PD2_Q4 3.6047236436186669283898709e-01 +#define LOG1PD2_Q5 3.2620075387969869884496887e-02 +#define LOG1PD2_Q6 6.8047193336239690346356479e-04 + + +/* + * FUNCTION + * vector double _log1pd2(vector double x) + * + * DESCRIPTION + * The function _log1pd2 computes the natural logarithm of x + 1 + * for each of the double word elements of x. + * + */ + +static __inline vector double _log1pd2(vector double x) +{ + vector double oned = spu_splats(1.0); + vector double rangehi = spu_splats(0.35); + vector double rangelo = spu_splats(0.0); + vector unsigned long long use_log; + vector double pr, qr; + vector double eresult; + vector double rresult; + vector double result; + + /* Compiler Bug. Replace xbug with x when spu_cmp*() doesn't + * modify it's arguments! */ + volatile vector double xbug = x; + use_log = spu_or(spu_cmpgt(xbug, rangehi), spu_cmpgt(rangelo, xbug)); + + /* + * Calculate directly using log(x+1) + */ + eresult = _logd2(spu_add(x, oned)); + + /* + * For x in [0.0,0.35], use a rational approximation. + */ + pr = spu_madd(x, spu_splats(LOG1PD2_P6), spu_splats(LOG1PD2_P5)); + qr = spu_madd(x, spu_splats(LOG1PD2_Q6), spu_splats(LOG1PD2_Q5)); + pr = spu_madd(pr, x, spu_splats(LOG1PD2_P4)); + qr = spu_madd(qr, x, spu_splats(LOG1PD2_Q4)); + pr = spu_madd(pr, x, spu_splats(LOG1PD2_P3)); + qr = spu_madd(qr, x, spu_splats(LOG1PD2_Q3)); + pr = spu_madd(pr, x, spu_splats(LOG1PD2_P2)); + qr = spu_madd(qr, x, spu_splats(LOG1PD2_Q2)); + pr = spu_madd(pr, x, spu_splats(LOG1PD2_P1)); + qr = spu_madd(qr, x, spu_splats(LOG1PD2_Q1)); + pr = spu_madd(pr, x, spu_splats(LOG1PD2_P0)); + qr = spu_madd(qr, x, spu_splats(LOG1PD2_Q0)); + rresult = _divd2(pr, qr); + + /* + * Select either direct calculation or rational approximation. + */ + result = spu_sel(rresult, eresult, use_log); + + return result; +} + +#endif /* _LOG1PD2_H_ */ +#endif /* __SPU__ */ |