diff options
| -rw-r--r-- | ChangeLog | 12 | ||||
| -rw-r--r-- | benchtests/Makefile | 2 | ||||
| -rw-r--r-- | benchtests/bench-modf.c | 39 | ||||
| -rw-r--r-- | sysdeps/powerpc/power5/fpu/s_modf.c | 58 | ||||
| -rw-r--r-- | sysdeps/powerpc/power5/fpu/s_modff.c | 46 | ||||
| -rw-r--r-- | sysdeps/powerpc/powerpc32/power5/Implies | 2 | ||||
| -rw-r--r-- | sysdeps/powerpc/powerpc64/power5/Implies | 2 |
7 files changed, 160 insertions, 1 deletions
diff --git a/ChangeLog b/ChangeLog index 164026bf99..9d283f4ecd 100644 --- a/ChangeLog +++ b/ChangeLog @@ -1,3 +1,15 @@ +2013-04-23 Adhemerval Zanella <azanella@linux.vnet.ibm.com> + + * sysdeps/powerpc/power5/fpu/s_modf.c: New file: modf optimization for + POWER. + * sysdeps/powerpc/power5/fpu/s_modff.c: New file: modff optimization + for POWER. + * sysdeps/powerpc/powerpc64/power5/Implies: Add powerpc/power5 and + powerpc/power5/fpu folders. + * sysdeps/powerpc/powerpc32/power5/Implies: Likewise. + * benchtests/Makefile: Add modf testcase. + * benchtests/bench-modf.c: New file: Benchmark test for mo + 2013-04-23 Siddhesh Poyarekar <siddhesh@redhat.com> [BZ #14888] diff --git a/benchtests/Makefile b/benchtests/Makefile index c61fd87052..110c5d8270 100644 --- a/benchtests/Makefile +++ b/benchtests/Makefile @@ -45,7 +45,7 @@ # See pow-inputs for an example. subdir := benchtests -bench := exp pow rint sin cos tan atan \ +bench := exp pow rint sin cos tan atan modf \ slowexp slowpow slowsin slowcos slowtan slowatan # exp function fast path diff --git a/benchtests/bench-modf.c b/benchtests/bench-modf.c new file mode 100644 index 0000000000..975a29f199 --- /dev/null +++ b/benchtests/bench-modf.c @@ -0,0 +1,39 @@ +/* Copyright (C) 2013 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, see + <http://www.gnu.org/licenses/>. */ + +extern double modf (double, double *); + +#define CALL_BENCH_FUNC(j, i) modf ( in[j].arg0, &i); + +struct args +{ + double arg0; +} in[] = +{ + { 42.42 }, + { -42.42 } +}; + +#define NUM_SAMPLES (sizeof (in) / sizeof (struct args)) + +static volatile double ret = 0.0; +#define BENCH_FUNC(j) ({double iptr; ret = CALL_BENCH_FUNC (j, iptr);}) + +#define ITER 250000000 +#define FUNCNAME "modf" + +#include "bench-skeleton.c" diff --git a/sysdeps/powerpc/power5/fpu/s_modf.c b/sysdeps/powerpc/power5/fpu/s_modf.c new file mode 100644 index 0000000000..b45bf66169 --- /dev/null +++ b/sysdeps/powerpc/power5/fpu/s_modf.c @@ -0,0 +1,58 @@ +/* Copyright (C) 2013 Free Software Foundation, Inc. + This file is part of the GNU C Library + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Library General Public License as + published by the Free Software Foundation; either version 2 of the + License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public + License along with the GNU C Library; see the file COPYING.LIB. If + not, see <http://www.gnu.org/licenses/>. */ + +#include <math.h> +#include <math_private.h> +#include <math_ldbl_opt.h> + +double +__modf (double x, double *iptr) +{ + if (__builtin_isinf (x)) + { + *iptr = x; + return __copysign (0.0, x); + } + else if (__builtin_isnan (x)) + { + *iptr = NAN; + return NAN; + } + + if (x >= 0.0) + { + *iptr = __floor (x); + return (x - *iptr); + } + else + { + *iptr = __ceil (x); + return (x - *iptr); + } +} +weak_alias (__modf, modf) +#ifdef NO_LONG_DOUBLE +strong_alias (__modf, __modfl) +weak_alias (__modf, modfl) +#endif +#ifdef IS_IN_libm +# if LONG_DOUBLE_COMPAT(libm, GLIBC_2_0) +compat_symbol (libm, __modf, modfl, GLIBC_2_0); +# endif +#elif LONG_DOUBLE_COMPAT(libc, GLIBC_2_0) +compat_symbol (libc, __modf, modfl, GLIBC_2_0); +#endif diff --git a/sysdeps/powerpc/power5/fpu/s_modff.c b/sysdeps/powerpc/power5/fpu/s_modff.c new file mode 100644 index 0000000000..55759cde05 --- /dev/null +++ b/sysdeps/powerpc/power5/fpu/s_modff.c @@ -0,0 +1,46 @@ +/* Copyright (C) 2013 Free Software Foundation, Inc. + This file is part of the GNU C Library + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Library General Public License as + published by the Free Software Foundation; either version 2 of the + License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public + License along with the GNU C Library; see the file COPYING.LIB. If + not, see <http://www.gnu.org/licenses/>. */ + +#include <math.h> +#include <math_private.h> + +float +__modff (float x, float *iptr) +{ + if (__builtin_isinff (x)) + { + *iptr = x; + return __copysignf (0.0, x); + } + else if (__builtin_isnanf (x)) + { + *iptr = NAN; + return NAN; + } + + if (x >= 0.0) + { + *iptr = __floorf (x); + return (x - *iptr); + } + else + { + *iptr = __ceilf (x); + return (x - *iptr); + } +} +weak_alias (__modff, modff) diff --git a/sysdeps/powerpc/powerpc32/power5/Implies b/sysdeps/powerpc/powerpc32/power5/Implies index 17139bf21c..17949d41c5 100644 --- a/sysdeps/powerpc/powerpc32/power5/Implies +++ b/sysdeps/powerpc/powerpc32/power5/Implies @@ -1,2 +1,4 @@ +powerpc/power5/fpu +powerpc/power5 powerpc/powerpc32/power4/fpu powerpc/powerpc32/power4 diff --git a/sysdeps/powerpc/powerpc64/power5/Implies b/sysdeps/powerpc/powerpc64/power5/Implies index bedb20b65c..b36831e287 100644 --- a/sysdeps/powerpc/powerpc64/power5/Implies +++ b/sysdeps/powerpc/powerpc64/power5/Implies @@ -1,2 +1,4 @@ +powerpc/power5/fpu +powerpc/power5 powerpc/powerpc64/power4/fpu powerpc/powerpc64/power4 |