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Diffstat (limited to 'sysdeps/powerpc/bits/fenv.h')
| -rw-r--r-- | sysdeps/powerpc/bits/fenv.h | 180 |
1 files changed, 0 insertions, 180 deletions
diff --git a/sysdeps/powerpc/bits/fenv.h b/sysdeps/powerpc/bits/fenv.h deleted file mode 100644 index c279b484f5..0000000000 --- a/sysdeps/powerpc/bits/fenv.h +++ /dev/null @@ -1,180 +0,0 @@ -/* Copyright (C) 1997-2017 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/>. */ - -#ifndef _FENV_H -# error "Never use <bits/fenv.h> directly; include <fenv.h> instead." -#endif - - -/* Define bits representing the exception. We use the bit positions of - the appropriate bits in the FPSCR... */ -enum - { - FE_INEXACT = -#define FE_INEXACT (1 << (31 - 6)) - FE_INEXACT, - FE_DIVBYZERO = -#define FE_DIVBYZERO (1 << (31 - 5)) - FE_DIVBYZERO, - FE_UNDERFLOW = -#define FE_UNDERFLOW (1 << (31 - 4)) - FE_UNDERFLOW, - FE_OVERFLOW = -#define FE_OVERFLOW (1 << (31 - 3)) - FE_OVERFLOW, - - /* ... except for FE_INVALID, for which we use bit 31. FE_INVALID - actually corresponds to bits 7 through 12 and 21 through 23 - in the FPSCR, but we can't use that because the current draft - says that it must be a power of 2. Instead we use bit 2 which - is the summary bit for all the FE_INVALID exceptions, which - kind of makes sense. */ - FE_INVALID = -#define FE_INVALID (1 << (31 - 2)) - FE_INVALID, - -#ifdef __USE_GNU - /* Breakdown of the FE_INVALID bits. Setting FE_INVALID on an - input to a routine is equivalent to setting all of these bits; - FE_INVALID will be set on output from a routine iff one of - these bits is set. Note, though, that you can't disable or - enable these exceptions individually. */ - - /* Operation with a sNaN. */ - FE_INVALID_SNAN = -# define FE_INVALID_SNAN (1 << (31 - 7)) - FE_INVALID_SNAN, - - /* Inf - Inf */ - FE_INVALID_ISI = -# define FE_INVALID_ISI (1 << (31 - 8)) - FE_INVALID_ISI, - - /* Inf / Inf */ - FE_INVALID_IDI = -# define FE_INVALID_IDI (1 << (31 - 9)) - FE_INVALID_IDI, - - /* 0 / 0 */ - FE_INVALID_ZDZ = -# define FE_INVALID_ZDZ (1 << (31 - 10)) - FE_INVALID_ZDZ, - - /* Inf * 0 */ - FE_INVALID_IMZ = -# define FE_INVALID_IMZ (1 << (31 - 11)) - FE_INVALID_IMZ, - - /* Comparison with a NaN. */ - FE_INVALID_COMPARE = -# define FE_INVALID_COMPARE (1 << (31 - 12)) - FE_INVALID_COMPARE, - - /* Invalid operation flag for software (not set by hardware). */ - /* Note that some chips don't have this implemented, presumably - because no-one expected anyone to write software for them %-). */ - FE_INVALID_SOFTWARE = -# define FE_INVALID_SOFTWARE (1 << (31 - 21)) - FE_INVALID_SOFTWARE, - - /* Square root of negative number (including -Inf). */ - /* Note that some chips don't have this implemented. */ - FE_INVALID_SQRT = -# define FE_INVALID_SQRT (1 << (31 - 22)) - FE_INVALID_SQRT, - - /* Conversion-to-integer of a NaN or a number too large or too small. */ - FE_INVALID_INTEGER_CONVERSION = -# define FE_INVALID_INTEGER_CONVERSION (1 << (31 - 23)) - FE_INVALID_INTEGER_CONVERSION - -# define FE_ALL_INVALID \ - (FE_INVALID_SNAN | FE_INVALID_ISI | FE_INVALID_IDI | FE_INVALID_ZDZ \ - | FE_INVALID_IMZ | FE_INVALID_COMPARE | FE_INVALID_SOFTWARE \ - | FE_INVALID_SQRT | FE_INVALID_INTEGER_CONVERSION) -#endif - }; - -#define FE_ALL_EXCEPT \ - (FE_INEXACT | FE_DIVBYZERO | FE_UNDERFLOW | FE_OVERFLOW | FE_INVALID) - -/* PowerPC chips support all of the four defined rounding modes. We - use the bit pattern in the FPSCR as the values for the - appropriate macros. */ -enum - { - FE_TONEAREST = -#define FE_TONEAREST 0 - FE_TONEAREST, - FE_TOWARDZERO = -#define FE_TOWARDZERO 1 - FE_TOWARDZERO, - FE_UPWARD = -#define FE_UPWARD 2 - FE_UPWARD, - FE_DOWNWARD = -#define FE_DOWNWARD 3 - FE_DOWNWARD - }; - -/* Type representing exception flags. */ -typedef unsigned int fexcept_t; - -/* Type representing floating-point environment. We leave it as 'double' - for efficiency reasons (rather than writing it to a 32-bit integer). */ -typedef double fenv_t; - -/* If the default argument is used we use this value. */ -extern const fenv_t __fe_dfl_env; -#define FE_DFL_ENV (&__fe_dfl_env) - -#ifdef __USE_GNU -/* Floating-point environment where all exceptions are enabled. Note that - this is not sufficient to give you SIGFPE. */ -extern const fenv_t __fe_enabled_env; -# define FE_ENABLED_ENV (&__fe_enabled_env) - -/* Floating-point environment with (processor-dependent) non-IEEE floating - point. */ -extern const fenv_t __fe_nonieee_env; -# define FE_NONIEEE_ENV (&__fe_nonieee_env) - -/* Floating-point environment with all exceptions enabled. Note that - just evaluating this value does not change the processor exception mode. - Passing this mask to fesetenv will result in a prctl syscall to change - the MSR FE0/FE1 bits to "Precise Mode". On some processors this will - result in slower floating point execution. This will last until an - fenv or exception mask is installed that disables all FP exceptions. */ -# define FE_NOMASK_ENV FE_ENABLED_ENV - -/* Floating-point environment with all exceptions disabled. Note that - just evaluating this value does not change the processor exception mode. - Passing this mask to fesetenv will result in a prctl syscall to change - the MSR FE0/FE1 bits to "Ignore Exceptions Mode". On most processors - this allows the fastest possible floating point execution.*/ -# define FE_MASK_ENV FE_DFL_ENV - -#endif - -#if __GLIBC_USE (IEC_60559_BFP_EXT) -/* Type representing floating-point control modes. */ -typedef double femode_t; - -/* Default floating-point control modes. */ -extern const femode_t __fe_dfl_mode; -# define FE_DFL_MODE (&__fe_dfl_mode) -#endif |