diff options
Diffstat (limited to 'sysdeps/alpha/fpu/bits')
| -rw-r--r-- | sysdeps/alpha/fpu/bits/fenv.h | 123 | ||||
| -rw-r--r-- | sysdeps/alpha/fpu/bits/mathinline.h | 150 |
2 files changed, 0 insertions, 273 deletions
diff --git a/sysdeps/alpha/fpu/bits/fenv.h b/sysdeps/alpha/fpu/bits/fenv.h deleted file mode 100644 index a9e89b498e..0000000000 --- a/sysdeps/alpha/fpu/bits/fenv.h +++ /dev/null @@ -1,123 +0,0 @@ -/* Copyright (C) 1997, 1998, 1999, 2000 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. */ - -#ifndef _FENV_H -# error "Never use <bits/fenv.h> directly; include <fenv.h> instead." -#endif - - -/* Define the bits representing the exception. - - Note that these are the bit positions as defined by the OSF/1 - ieee_{get,set}_control_word interface and not by the hardware fpcr. - - See the Alpha Architecture Handbook section 4.7.7.3 for details, - but in summary, trap shadows mean the hardware register can acquire - extra exception bits so for proper IEEE support the tracking has to - be done in software -- in this case with kernel support. - - As to why the system call interface isn't in the same format as - the hardware register, only those crazy folks at DEC can tell you. */ - -enum - { -#ifdef __USE_GNU - FE_DENORMAL = 1UL << 22, -#define FE_DENORMAL FE_DENORMAL -#endif - - FE_INEXACT = 1UL << 21, -#define FE_INEXACT FE_INEXACT - - FE_UNDERFLOW = 1UL << 20, -#define FE_UNDERFLOW FE_UNDERFLOW - - FE_OVERFLOW = 1UL << 19, -#define FE_OVERFLOW FE_OVERFLOW - - FE_DIVBYZERO = 1UL << 18, -#define FE_DIVBYZERO FE_DIVBYZERO - - FE_INVALID = 1UL << 17, -#define FE_INVALID FE_INVALID - - FE_ALL_EXCEPT = 0x3f << 17 -#define FE_ALL_EXCEPT FE_ALL_EXCEPT - }; - -/* Alpha chips support all four defined rouding modes. - - Note that code must be compiled to use dynamic rounding (/d) instructions - to see these changes. For gcc this is -mfp-rounding-mode=d; for DEC cc - this is -fprm d. The default for both is static rounding to nearest. - - These are shifted down 58 bits from the hardware fpcr because the - functions are declared to take integers. */ - -enum - { - FE_TOWARDZERO = 0, -#define FE_TOWARDZERO FE_TOWARDZERO - - FE_DOWNWARD = 1, -#define FE_DOWNWARD FE_DOWNWARD - - FE_TONEAREST = 2, -#define FE_TONEAREST FE_TONEAREST - - FE_UPWARD = 3, -#define FE_UPWARD FE_UPWARD - }; - -#ifdef __USE_GNU -/* On later hardware, and later kernels for earlier hardware, we can forcibly - underflow denormal inputs and outputs. This can speed up certain programs - significantly, usually without affecting accuracy. */ -enum - { - FE_MAP_DMZ = 1UL << 12, /* Map denorm inputs to zero */ -#define FE_MAP_DMZ FE_MAP_DMZ - - FE_MAP_UMZ = 1UL << 13, /* Map underflowed outputs to zero */ -#define FE_MAP_UMZ FE_MAP_UMZ - }; -#endif - -/* Type representing exception flags. */ -typedef unsigned long int fexcept_t; - -/* Type representing floating-point environment. */ -typedef unsigned long int fenv_t; - -/* If the default argument is used we use this value. Note that due to - architecture-specified page mappings, no user-space pointer will ever - have its two high bits set. Co-opt one. */ -#define FE_DFL_ENV ((__const fenv_t *) 0x8800000000000000UL) - -#ifdef __USE_GNU -/* Floating-point environment where none of the exceptions are masked. */ -# define FE_NOMASK_ENV ((__const fenv_t *) 0x880000000000003eUL) - -/* Floating-point environment with (processor-dependent) non-IEEE floating - point. In this case, mapping denormals to zero. */ -# define FE_NONIEEE_ENV ((__const fenv_t *) 0x8800000000003000UL) -#endif - -/* The system calls to talk to the kernel's FP code. */ -extern unsigned long int __ieee_get_fp_control (void) __THROW; -extern void __ieee_set_fp_control (unsigned long int __value) __THROW; diff --git a/sysdeps/alpha/fpu/bits/mathinline.h b/sysdeps/alpha/fpu/bits/mathinline.h deleted file mode 100644 index 5378a181c6..0000000000 --- a/sysdeps/alpha/fpu/bits/mathinline.h +++ /dev/null @@ -1,150 +0,0 @@ -/* Inline math functions for Alpha. - Copyright (C) 1996, 1997, 1999-2001, 2004, 2007 - Free Software Foundation, Inc. - This file is part of the GNU C Library. - Contributed by David Mosberger-Tang. - - 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. */ - -#ifndef _MATH_H -# error "Never use <bits/mathinline.h> directly; include <math.h> instead." -#endif - -#ifndef __extern_inline -# define __MATH_INLINE __inline -#else -# define __MATH_INLINE __extern_inline -#endif - -#if defined __USE_ISOC99 && defined __GNUC__ && !__GNUC_PREREQ(3,0) -# undef isgreater -# undef isgreaterequal -# undef isless -# undef islessequal -# undef islessgreater -# undef isunordered -# define isunordered(u, v) \ - (__extension__ \ - ({ double __r, __u = (u), __v = (v); \ - __asm ("cmptun/su %1,%2,%0\n\ttrapb" \ - : "=&f" (__r) : "f" (__u), "f"(__v)); \ - __r != 0; })) -#endif /* ISO C99 */ - -#if (!defined __NO_MATH_INLINES || defined __LIBC_INTERNAL_MATH_INLINES) \ - && defined __OPTIMIZE__ - -#if !__GNUC_PREREQ (4, 0) -# define __inline_copysign(NAME, TYPE) \ -__MATH_INLINE TYPE \ -__NTH (NAME (TYPE __x, TYPE __y)) \ -{ \ - TYPE __z; \ - __asm ("cpys %1, %2, %0" : "=f" (__z) : "f" (__y), "f" (__x)); \ - return __z; \ -} - -__inline_copysign (__copysignf, float) -__inline_copysign (copysignf, float) -__inline_copysign (__copysign, double) -__inline_copysign (copysign, double) - -# undef __inline_copysign -#endif - - -#if !__GNUC_PREREQ (2, 8) -# define __inline_fabs(NAME, TYPE) \ -__MATH_INLINE TYPE \ -__NTH (NAME (TYPE __x)) \ -{ \ - TYPE __z; \ - __asm ("cpys $f31, %1, %0" : "=f" (__z) : "f" (__x)); \ - return __z; \ -} - -__inline_fabs (__fabsf, float) -__inline_fabs (fabsf, float) -__inline_fabs (__fabs, double) -__inline_fabs (fabs, double) - -# undef __inline_fabs -#endif - -#ifdef __USE_ISOC99 - -/* Test for negative number. Used in the signbit() macro. */ -__MATH_INLINE int -__NTH (__signbitf (float __x)) -{ -#if !__GNUC_PREREQ (4, 0) - __extension__ union { float __f; int __i; } __u = { __f: __x }; - return __u.__i < 0; -#else - return __builtin_signbitf (__x); -#endif -} - -__MATH_INLINE int -__NTH (__signbit (double __x)) -{ -#if !__GNUC_PREREQ (4, 0) - __extension__ union { double __d; long __i; } __u = { __d: __x }; - return __u.__i < 0; -#else - return __builtin_signbit (__x); -#endif -} - -__MATH_INLINE int -__NTH (__signbitl (long double __x)) -{ -#if !__GNUC_PREREQ (4, 0) - __extension__ union { - long double __d; - long __i[sizeof(long double)/sizeof(long)]; - } __u = { __d: __x }; - return __u.__i[sizeof(long double)/sizeof(long) - 1] < 0; -#else - return __builtin_signbitl (__x); -#endif -} - -/* Test for NaN. Used in the isnan() macro. */ - -__MATH_INLINE int -__NTH (__isnanf (float __x)) -{ - return isunordered (__x, __x); -} - -__MATH_INLINE int -__NTH (__isnan (double __x)) -{ - return isunordered (__x, __x); -} - -#ifndef __NO_LONG_DOUBLE_MATH -__MATH_INLINE int -__NTH (__isnanl (long double __x)) -{ - return isunordered (__x, __x); -} -#endif - -#endif /* C99 */ - -#endif /* __NO_MATH_INLINES */ |