diff options
| -rw-r--r-- | ChangeLog | 9 | ||||
| -rw-r--r-- | sysdeps/alpha/fpu/s_floor.c | 4 | ||||
| -rw-r--r-- | sysdeps/alpha/fpu/s_floorf.c | 4 | ||||
| -rw-r--r-- | sysdeps/alpha/fpu/s_llround.c | 1 | ||||
| -rw-r--r-- | sysdeps/alpha/fpu/s_llroundf.c | 1 | ||||
| -rw-r--r-- | sysdeps/alpha/fpu/s_lround.c | 48 | ||||
| -rw-r--r-- | sysdeps/alpha/fpu/s_lroundf.c | 38 | ||||
| -rw-r--r-- | sysdeps/alpha/fpu/s_round.c | 49 | ||||
| -rw-r--r-- | sysdeps/alpha/fpu/s_roundf.c | 44 | ||||
| -rw-r--r-- | sysdeps/alpha/fpu/s_trunc.c | 53 | ||||
| -rw-r--r-- | sysdeps/alpha/fpu/s_truncf.c | 45 |
11 files changed, 290 insertions, 6 deletions
diff --git a/ChangeLog b/ChangeLog index 29f525fb29..1a74ee9f86 100644 --- a/ChangeLog +++ b/ChangeLog @@ -1,5 +1,14 @@ 2007-03-14 Richard Henderson <rth@redhat.com> + * sysdeps/alpha/fpu/s_llround.c: New file. + * sysdeps/alpha/fpu/s_llroundf.c: New file. + * sysdeps/alpha/fpu/s_lround.c: New file. + * sysdeps/alpha/fpu/s_lroundf.c: New file. + * sysdeps/alpha/fpu/s_round.c: New file. + * sysdeps/alpha/fpu/s_roundf.c: New file. + * sysdeps/alpha/fpu/s_trunc.c: New file. + * sysdeps/alpha/fpu/s_truncf.c: New file. + * sysdeps/alpha/fpu/s_ceil.c: Rewrite without branches. * sysdeps/alpha/fpu/s_ceilf.c: Likewise. * sysdeps/alpha/fpu/s_floor.c: Likewise. diff --git a/sysdeps/alpha/fpu/s_floor.c b/sysdeps/alpha/fpu/s_floor.c index 29fc924c71..5af6386155 100644 --- a/sysdeps/alpha/fpu/s_floor.c +++ b/sysdeps/alpha/fpu/s_floor.c @@ -21,9 +21,7 @@ #include <math_ldbl_opt.h> -/* Use the -inf rounding mode conversion instructions to implement - floor. We note when the exponent is large enough that the value - must be integral, as this avoids unpleasant integer overflows. */ +/* Use the -inf rounding mode conversion instructions to implement floor. */ double __floor (double x) diff --git a/sysdeps/alpha/fpu/s_floorf.c b/sysdeps/alpha/fpu/s_floorf.c index 2283264e27..8b421705cd 100644 --- a/sysdeps/alpha/fpu/s_floorf.c +++ b/sysdeps/alpha/fpu/s_floorf.c @@ -20,9 +20,7 @@ #include <math.h> -/* Use the -inf rounding mode conversion instructions to implement - floor. We note when the exponent is large enough that the value - must be integral, as this avoids unpleasant integer overflows. */ +/* Use the -inf rounding mode conversion instructions to implement floor. */ float __floorf (float x) diff --git a/sysdeps/alpha/fpu/s_llround.c b/sysdeps/alpha/fpu/s_llround.c new file mode 100644 index 0000000000..b212fbd8e5 --- /dev/null +++ b/sysdeps/alpha/fpu/s_llround.c @@ -0,0 +1 @@ +/* In s_lround.c. */ diff --git a/sysdeps/alpha/fpu/s_llroundf.c b/sysdeps/alpha/fpu/s_llroundf.c new file mode 100644 index 0000000000..73bdf3103f --- /dev/null +++ b/sysdeps/alpha/fpu/s_llroundf.c @@ -0,0 +1 @@ +/* In s_lroundf.c. */ diff --git a/sysdeps/alpha/fpu/s_lround.c b/sysdeps/alpha/fpu/s_lround.c new file mode 100644 index 0000000000..bc5cb88ed2 --- /dev/null +++ b/sysdeps/alpha/fpu/s_lround.c @@ -0,0 +1,48 @@ +/* Copyright (C) 2007 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, write to the Free + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA + 02111-1307 USA. */ + +#define __llround not___llround +#define llround not_llround +#include <math.h> +#include <math_ldbl_opt.h> +#undef __llround +#undef llround + +long int +__lround (double x) +{ + double adj; + + adj = 0x1.fffffffffffffp-2; /* nextafter (0.5, 0.0) */ + adj = copysign (adj, x); + return x + adj; +} + +strong_alias (__lround, __llround) +weak_alias (__lround, lround) +weak_alias (__llround, llround) +#ifdef NO_LONG_DOUBLE +strong_alias (__lround, __lroundl) +strong_alias (__lround, __llroundl) +weak_alias (__lroundl, lroundl) +weak_alias (__llroundl, llroundl) +#endif +#if LONG_DOUBLE_COMPAT(libm, GLIBC_2_0) +compat_symbol (libm, __lround, lroundl, GLIBC_2_0); +compat_symbol (libm, __llround, llroundl, GLIBC_2_0); +#endif diff --git a/sysdeps/alpha/fpu/s_lroundf.c b/sysdeps/alpha/fpu/s_lroundf.c new file mode 100644 index 0000000000..16ff348b21 --- /dev/null +++ b/sysdeps/alpha/fpu/s_lroundf.c @@ -0,0 +1,38 @@ +/* Copyright (C) 2007 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, write to the Free + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA + 02111-1307 USA. */ + +#define __llroundf not___llroundf +#define llroundf not_llroundf +#include <math.h> +#undef __llroundf +#undef llroundf + + +long int +__lroundf (float x) +{ + float adj; + + adj = 0x1.fffffep-2; /* nextafterf (0.5f, 0.0f) */ + adj = copysignf (adj, x); + return x + adj; +} + +strong_alias (__lroundf, __llroundf) +weak_alias (__lroundf, lroundf) +weak_alias (__llroundf, llroundf) diff --git a/sysdeps/alpha/fpu/s_round.c b/sysdeps/alpha/fpu/s_round.c new file mode 100644 index 0000000000..3999e6110a --- /dev/null +++ b/sysdeps/alpha/fpu/s_round.c @@ -0,0 +1,49 @@ +/* Copyright (C) 2007 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, write to the Free + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA + 02111-1307 USA. */ + +#include <math.h> +#include <math_ldbl_opt.h> + + +double +__round (double x) +{ + const double almost_half = 0x1.fffffffffffffp-2; + const double two52 = 0x1.0p52; + double tmp, r; + + __asm ( +#ifdef _IEEE_FP_INEXACT + "addt/suic %2, %3, %1\n\tsubt/suic %1, %3, %0" +#else + "addt/suc %2, %3, %1\n\tsubt/suc %1, %3, %0" +#endif + : "=&f"(r), "=&f"(tmp) + : "f"(fabs (x) + almost_half), "f"(two52)); + + return copysign (r, x); +} + +weak_alias (__round, round) +#ifdef NO_LONG_DOUBLE +strong_alias (__round, __roundl) +weak_alias (__roundl, roundl) +#endif +#if LONG_DOUBLE_COMPAT(libm, GLIBC_2_0) +compat_symbol (libm, __round, roundl, GLIBC_2_0); +#endif diff --git a/sysdeps/alpha/fpu/s_roundf.c b/sysdeps/alpha/fpu/s_roundf.c new file mode 100644 index 0000000000..89584f062b --- /dev/null +++ b/sysdeps/alpha/fpu/s_roundf.c @@ -0,0 +1,44 @@ +/* Copyright (C) 2007 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Richard Henderson. + + 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, write to the Free + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA + 02111-1307 USA. */ + +#include <math.h> + + +float +__roundf (float x) +{ + const float almost_half = 0x1.fffffep-2; + const float two23 = 0x1.0p23; + float r, tmp; + + __asm ( +#ifdef _IEEE_FP_INEXACT + "adds/suic %2, %3, %1\n\tsubs/suic %1, %3, %0" +#else + "adds/suc %2, %3, %1\n\tsubs/suc %1, %3, %0" +#endif + : "=&f"(r), "=&f"(tmp) + : "f"(fabsf (x) + almost_half), "f"(two23)); + + /* round(-0) == -0, and in general we'll always have the same + sign as our input. */ + return copysignf (r, x); +} + +weak_alias (__roundf, roundf) diff --git a/sysdeps/alpha/fpu/s_trunc.c b/sysdeps/alpha/fpu/s_trunc.c new file mode 100644 index 0000000000..1c1a66673f --- /dev/null +++ b/sysdeps/alpha/fpu/s_trunc.c @@ -0,0 +1,53 @@ +/* Copyright (C) 2007 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Richard Henderson. + + 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, write to the Free + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA + 02111-1307 USA. */ + +#include <math.h> +#include <math_ldbl_opt.h> + + +/* Use the chopped rounding mode conversion instructions to implement trunc. */ + +double +__trunc (double x) +{ + double two52 = copysign (0x1.0p52, x); + double r, tmp; + + __asm ( +#ifdef _IEEE_FP_INEXACT + "addt/suic %2, %3, %1\n\tsubt/suic %1, %3, %0" +#else + "addt/suc %2, %3, %1\n\tsubt/suc %1, %3, %0" +#endif + : "=&f"(r), "=&f"(tmp) + : "f"(x), "f"(two52)); + + /* trunc(-0) == -0, and in general we'll always have the same + sign as our input. */ + return copysign (r, x); +} + +weak_alias (__trunc, trunc) +#ifdef NO_LONG_DOUBLE +strong_alias (__trunc, __truncl) +weak_alias (__trunc, truncl) +#endif +#if LONG_DOUBLE_COMPAT(libm, GLIBC_2_0) +compat_symbol (libm, __trunc, truncl, GLIBC_2_0); +#endif diff --git a/sysdeps/alpha/fpu/s_truncf.c b/sysdeps/alpha/fpu/s_truncf.c new file mode 100644 index 0000000000..094997b433 --- /dev/null +++ b/sysdeps/alpha/fpu/s_truncf.c @@ -0,0 +1,45 @@ +/* Copyright (C) 2007 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Richard Henderson. + + 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, write to the Free + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA + 02111-1307 USA. */ + +#include <math.h> + + +/* Use the chopped rounding mode conversion instructions to implement trunc. */ + +float +__truncf (float x) +{ + float two23 = copysignf (0x1.0p23, x); + float r, tmp; + + __asm ( +#ifdef _IEEE_FP_INEXACT + "adds/suic %2, %3, %1\n\tsubs/suic %1, %3, %0" +#else + "adds/suc %2, %3, %1\n\tsubs/suc %1, %3, %0" +#endif + : "=&f"(r), "=&f"(tmp) + : "f"(x), "f"(two23)); + + /* trunc(-0) == -0, and in general we'll always have the same + sign as our input. */ + return copysignf (r, x); +} + +weak_alias (__truncf, truncf) |