diff options
Diffstat (limited to 'sysdeps')
| -rw-r--r-- | sysdeps/generic/bits/fenvinline.h | 8 | ||||
| -rw-r--r-- | sysdeps/powerpc/fpu/bits/fenv.h | 43 | ||||
| -rw-r--r-- | sysdeps/powerpc/fpu/bits/fenvinline.h | 59 |
3 files changed, 69 insertions, 41 deletions
diff --git a/sysdeps/generic/bits/fenvinline.h b/sysdeps/generic/bits/fenvinline.h new file mode 100644 index 0000000000..42f77b5618 --- /dev/null +++ b/sysdeps/generic/bits/fenvinline.h @@ -0,0 +1,8 @@ +/* This file provides inline versions of floating-pint environment + handling functions. If there were any. */ + +#ifndef __NO_MATH_INLINES + +/* Here is where the code would go. */ + +#endif diff --git a/sysdeps/powerpc/fpu/bits/fenv.h b/sysdeps/powerpc/fpu/bits/fenv.h index 459821f481..ea8940e92f 100644 --- a/sysdeps/powerpc/fpu/bits/fenv.h +++ b/sysdeps/powerpc/fpu/bits/fenv.h @@ -1,4 +1,4 @@ -/* Copyright (C) 1997, 1998 Free Software Foundation, Inc. +/* Copyright (C) 1997, 1998, 1999 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 @@ -140,45 +140,6 @@ extern const fenv_t __fe_nonieee_env; just evaluating this value will set the processor into 'FPU exceptions imprecise recoverable' mode, which may cause a significant performance penalty (but have no other visible effect). */ -extern const fenv_t *__fe_nomask_env __P ((void)); +extern const fenv_t *__fe_nomask_env (void); # define FE_NOMASK_ENV (__fe_nomask_env ()) #endif - -#if defined __OPTIMIZE__ && !defined _SOFT_FLOAT -/* Inline definition for fegetround. */ -# define fegetround() \ - (__extension__ ({ int __fegetround_result; \ - __asm__ ("mcrfs 7,7 ; mfcr %0" \ - : "=r"(__fegetround_result) : : "cr7"); \ - __fegetround_result & 3; })) - -/* The weird 'i#*X' constraints on the following suppress a gcc - warning when __excepts is not a constant. Otherwise, they mean the - same as just plain 'i'. */ - -/* Inline definition for feraiseexcept. */ -# define feraiseexcept(__excepts) \ - ((__builtin_constant_p (__excepts) \ - && ((__excepts) & ((__excepts)-1)) == 0 \ - && (__excepts) != FE_INVALID) \ - ? ((__excepts) != 0 \ - ? (__extension__ ({ __asm__ __volatile__ \ - ("mtfsb1 %s0" \ - : : "i#*X"(__builtin_ffs (__excepts))); \ - (void)0; })) \ - : (void)0) \ - : (feraiseexcept) (__excepts)) - -/* Inline definition for feclearexcept. */ -# define feclearexcept(__excepts) \ - ((__builtin_constant_p (__excepts) \ - && ((__excepts) & ((__excepts)-1)) == 0 \ - && (__excepts) != FE_INVALID) \ - ? ((__excepts) != 0 \ - ? (__extension__ ({ __asm__ __volatile__ \ - ("mtfsb0 %s0" \ - : : "i#*X"(__builtin_ffs (__excepts))); \ - (void)0; })) \ - : (void)0) \ - : (feclearexcept) (__excepts)) -#endif /* __OPTIMIZE__ && !_SOFT_FLOAT */ diff --git a/sysdeps/powerpc/fpu/bits/fenvinline.h b/sysdeps/powerpc/fpu/bits/fenvinline.h new file mode 100644 index 0000000000..6ab3105a3b --- /dev/null +++ b/sysdeps/powerpc/fpu/bits/fenvinline.h @@ -0,0 +1,59 @@ +/* Inline floating-point environment handling functions for powerpc. + Copyright (C) 1995, 1996, 1997, 1998, 1999 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, + write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, + Boston, MA 02111-1307, USA. */ + +#if defined __GNUC__ && !defined _SOFT_FLOAT && !defined __NO_MATH_INLINES + +/* Inline definition for fegetround. */ +# define fegetround() \ + (__extension__ ({ int __fegetround_result; \ + __asm__ ("mcrfs 7,7 ; mfcr %0" \ + : "=r"(__fegetround_result) : : "cr7"); \ + __fegetround_result & 3; })) + +/* The weird 'i#*X' constraints on the following suppress a gcc + warning when __excepts is not a constant. Otherwise, they mean the + same as just plain 'i'. */ + +/* Inline definition for feraiseexcept. */ +# define feraiseexcept(__excepts) \ + ((__builtin_constant_p (__excepts) \ + && ((__excepts) & ((__excepts)-1)) == 0 \ + && (__excepts) != FE_INVALID) \ + ? ((__excepts) != 0 \ + ? (__extension__ ({ __asm__ __volatile__ \ + ("mtfsb1 %s0" \ + : : "i#*X"(__builtin_ffs (__excepts))); \ + (void)0; })) \ + : (void)0) \ + : (feraiseexcept) (__excepts)) + +/* Inline definition for feclearexcept. */ +# define feclearexcept(__excepts) \ + ((__builtin_constant_p (__excepts) \ + && ((__excepts) & ((__excepts)-1)) == 0 \ + && (__excepts) != FE_INVALID) \ + ? ((__excepts) != 0 \ + ? (__extension__ ({ __asm__ __volatile__ \ + ("mtfsb0 %s0" \ + : : "i#*X"(__builtin_ffs (__excepts))); \ + (void)0; })) \ + : (void)0) \ + : (feclearexcept) (__excepts)) + +#endif /* __GNUC__ && !_SOFT_FLOAT */ |