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.

1 files changed, 114 insertions, 0 deletions

diff --git a/newlib/libm/machine/spu/headers/recipd2.h b/newlib/libm/machine/spu/headers/recipd2.h
new file mode 100644
index 000000000..463769db4
--- /dev/null
+++ b/newlib/libm/machine/spu/headers/recipd2.h
@@ -0,0 +1,114 @@
+/* --------------------------------------------------------------  */
+/* (C)Copyright 2006,2007,                                         */
+/* International Business Machines Corporation,                    */
+/* Sony Computer Entertainment, Incorporated,                      */
+/* Toshiba 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 _RECIPD2_H_
+#define _RECIPD2_H_		1
+
+#include <spu_intrinsics.h>
+
+
+/*
+ * FUNCTION
+ *	vector double _recipd2(vector double value)
+ * 
+ * DESCRIPTION
+ * 	The _recipd2 function inverts "value" and returns the result. 
+ *      Computation is performed using the single precision reciprocal 
+ *      estimate and interpolate instructions to produce a 12 accurate 
+ *      estimate.
+ *
+ *	One (1) iteration of a Newton-Raphson is performed to improve 
+ *	accuracy to single precision floating point. Two additional double 
+ *	precision iterations are  needed to achieve a full double
+ *	preicision result.
+ *
+ *	The Newton-Raphson iteration is of the form:
+ *		X[i+1] = X[i] * (2.0 - b*X[i]) 
+ * 	where b is the input value to be inverted
+ *
+ */ 
+static __inline vector double _recipd2(vector double value_d)
+{
+  vector unsigned long long zero     = (vector unsigned long long) { 0x0000000000000000ULL, 0x0000000000000000ULL };
+  vector unsigned long long expmask  = (vector unsigned long long) { 0x7FF0000000000000ULL, 0x7FF0000000000000ULL };
+  vector unsigned long long signmask = (vector unsigned long long) { 0x8000000000000000ULL, 0x8000000000000000ULL };
+  vector float  x0;
+  vector float  value;
+  vector float  two   = spu_splats(2.0f);
+  vector double two_d = spu_splats(2.0);
+  vector double x1, x2, x3;
+  vector double bias;
+
+  /* Bias the divisor to correct for double precision floating
+   * point exponents that are out of single precision range.
+   */
+  bias = spu_xor(spu_and(value_d, (vector double)expmask), (vector double)expmask);
+  value = spu_roundtf(spu_mul(value_d, bias));
+  x0 = spu_re(value);
+  x1 = spu_extend(spu_mul(x0, spu_nmsub(value, x0, two)));
+  x1 = spu_mul(x1, bias);
+  x2 = spu_mul(x1, spu_nmsub(value_d, x1, two_d));
+  x3 = spu_mul(x2, spu_nmsub(value_d, x2, two_d));
+
+  /* Handle input = +/- infinity or +/-0. */
+  vec_double2 xabs = spu_andc(value_d, (vec_double2)signmask);
+  vec_ullong2 zeroinf = spu_or(spu_cmpeq(xabs, (vec_double2)expmask),
+                               spu_cmpeq(xabs, (vec_double2)zero));
+  x3 = spu_sel(x3, spu_xor(value_d, (vector double)expmask), zeroinf);
+
+  return (x3);
+}
+
+#endif /* _RECIPD2_H_ */
+#endif /* __SPU__ */