diff options
Diffstat (limited to 'REORG.TODO/sysdeps/powerpc/bits/fenvinline.h')
| -rw-r--r-- | REORG.TODO/sysdeps/powerpc/bits/fenvinline.h | 79 |
1 files changed, 79 insertions, 0 deletions
diff --git a/REORG.TODO/sysdeps/powerpc/bits/fenvinline.h b/REORG.TODO/sysdeps/powerpc/bits/fenvinline.h new file mode 100644 index 0000000000..4110bdfbbf --- /dev/null +++ b/REORG.TODO/sysdeps/powerpc/bits/fenvinline.h @@ -0,0 +1,79 @@ +/* Inline floating-point environment handling functions for powerpc. + Copyright (C) 1995-2017 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/>. */ + +#if defined __GNUC__ && !defined _SOFT_FLOAT && !defined __NO_FPRS__ + +/* Inline definition for fegetround. */ +# define __fegetround() \ + (__extension__ ({ int __fegetround_result; \ + __asm__ __volatile__ \ + ("mcrfs 7,7 ; mfcr %0" \ + : "=r"(__fegetround_result) : : "cr7"); \ + __fegetround_result & 3; })) +# define fegetround() __fegetround () + +# ifndef __NO_MATH_INLINES +/* 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'. */ + +# if __GNUC_PREREQ(3, 4) + +/* Inline definition for feraiseexcept. */ +# define feraiseexcept(__excepts) \ + (__extension__ ({ \ + int __e = __excepts; \ + int __ret; \ + if (__builtin_constant_p (__e) \ + && (__e & (__e - 1)) == 0 \ + && __e != FE_INVALID) \ + { \ + if (__e != 0) \ + __asm__ __volatile__ ("mtfsb1 %0" \ + : : "i#*X" (__builtin_clz (__e))); \ + __ret = 0; \ + } \ + else \ + __ret = feraiseexcept (__e); \ + __ret; \ + })) + +/* Inline definition for feclearexcept. */ +# define feclearexcept(__excepts) \ + (__extension__ ({ \ + int __e = __excepts; \ + int __ret; \ + if (__builtin_constant_p (__e) \ + && (__e & (__e - 1)) == 0 \ + && __e != FE_INVALID) \ + { \ + if (__e != 0) \ + __asm__ __volatile__ ("mtfsb0 %0" \ + : : "i#*X" (__builtin_clz (__e))); \ + __ret = 0; \ + } \ + else \ + __ret = feclearexcept (__e); \ + __ret; \ + })) + +# endif /* __GNUC_PREREQ(3, 4). */ + +# endif /* !__NO_MATH_INLINES. */ + +#endif /* __GNUC__ && !_SOFT_FLOAT && !__NO_FPRS__ */ |