/* Subroutines for long double support. | |

Copyright (C) 2000, 2002 Free Software Foundation, Inc. | |

This file is part of GCC. | |

GCC is free software; you can redistribute it and/or modify | |

it under the terms of the GNU General Public License as published by | |

the Free Software Foundation; either version 2, or (at your option) | |

any later version. | |

In addition to the permissions in the GNU General Public License, the | |

Free Software Foundation gives you unlimited permission to link the | |

compiled version of this file into combinations with other programs, | |

and to distribute those combinations without any restriction coming | |

from the use of this file. (The General Public License restrictions | |

do apply in other respects; for example, they cover modification of | |

the file, and distribution when not linked into a combine | |

executable.) | |

GCC 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 General Public License for more details. | |

You should have received a copy of the GNU General Public License | |

along with GCC; see the file COPYING. If not, write to | |

the Free Software Foundation, 59 Temple Place - Suite 330, | |

Boston, MA 02111-1307, USA. */ | |

int _U_Qfcmp (long double a, long double b, int); | |

long _U_Qfcnvfxt_quad_to_sgl (long double); | |

int _U_Qfeq (long double, long double); | |

int _U_Qfne (long double, long double); | |

int _U_Qfgt (long double, long double); | |

int _U_Qfge (long double, long double); | |

int _U_Qflt (long double, long double); | |

int _U_Qfle (long double, long double); | |

int _U_Qfcomp (long double, long double); | |

long double _U_Qfneg (long double); | |

#ifdef __LP64__ | |

int __U_Qfcnvfxt_quad_to_sgl (long double); | |

#endif | |

unsigned int _U_Qfcnvfxt_quad_to_usgl(long double); | |

unsigned long long _U_Qfcnvfxt_quad_to_udbl(long double); | |

int | |

_U_Qfeq (long double a, long double b) | |

{ | |

return (_U_Qfcmp (a, b, 4) != 0); | |

} | |

int | |

_U_Qfne (long double a, long double b) | |

{ | |

return (_U_Qfcmp (a, b, 4) == 0); | |

} | |

int | |

_U_Qfgt (long double a, long double b) | |

{ | |

return (_U_Qfcmp (a, b, 17) != 0); | |

} | |

int | |

_U_Qfge (long double a, long double b) | |

{ | |

return (_U_Qfcmp (a, b, 21) != 0); | |

} | |

int | |

_U_Qflt (long double a, long double b) | |

{ | |

return (_U_Qfcmp (a, b, 9) != 0); | |

} | |

int | |

_U_Qfle (long double a, long double b) | |

{ | |

return (_U_Qfcmp (a, b, 13) != 0); | |

} | |

int | |

_U_Qfcomp (long double a, long double b) | |

{ | |

if (_U_Qfcmp (a, b, 4) == 0) | |

return 0; | |

return (_U_Qfcmp (a, b, 22) != 0 ? 1 : -1); | |

} | |

long double | |

_U_Qfneg (long double a) | |

{ | |

return (0.0L - a); | |

} | |

#ifdef __LP64__ | |

/* This routine is only necessary for the PA64 port; for reasons unknown | |

_U_Qfcnvfxt_quad_to_sgl returns the integer in the high 32bits of the | |

return value. Ugh. */ | |

int | |

__U_Qfcnvfxt_quad_to_sgl (long double a) | |

{ | |

return _U_Qfcnvfxt_quad_to_sgl (a) >> 32; | |

} | |

#endif | |

/* HP only has signed conversion in library, so need to synthesize an | |

unsigned version */ | |

unsigned int | |

_U_Qfcnvfxt_quad_to_usgl(long double a) | |

{ | |

extern long long _U_Qfcnvfxt_quad_to_dbl (long double a); | |

return (unsigned int) _U_Qfcnvfxt_quad_to_dbl (a); | |

} | |

/* HP only has signed conversion in library, so need to synthesize an | |

unsigned version */ | |

typedef union { | |

long long unsigned int u[2]; | |

long double d[1]; | |

} quad_type; | |

unsigned long long | |

_U_Qfcnvfxt_quad_to_udbl(long double a) | |

{ | |

extern quad_type _U_Qfcnvfxt_quad_to_quad (long double a); | |

quad_type u; | |

u = _U_Qfcnvfxt_quad_to_quad(a); | |

return u.u[1]; | |

} |