sysdeps/powerpc/s_fmin.S

   1 /* Floating-point minimum.  PowerPC version.
   2    Copyright (C) 1997 Free Software Foundation, Inc.
   3    This file is part of the GNU C Library.
   4
   5    The GNU C Library is free software; you can redistribute it and/or
   6    modify it under the terms of the GNU Library General Public License as
   7    published by the Free Software Foundation; either version 2 of the
   8    License, or (at your option) any later version.
   9
  10    The GNU C Library is distributed in the hope that it will be useful,
  11    but WITHOUT ANY WARRANTY; without even the implied warranty of
  12    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  13    Library General Public License for more details.
  14
  15    You should have received a copy of the GNU Library General Public
  16    License along with the GNU C Library; see the file COPYING.LIB.  If not,
  17    write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
  18    Boston, MA 02111-1307, USA.  */
  19
  20 #include <sysdep.h>
  21
  22 ENTRY(__fmin)
  23 /* double [f1] fmin (double [f1] x, double [f2] y); */
  24         fcmpu   %cr0,%f1,%f2
  25         bgt     %cr0,0f         /* if x > y, neither x nor y can be NaN... */
  26         bnulr+  %cr0
  27 /* x and y are unordered, so one of x or y must be a NaN... */
  28         fcmpu   %cr1,%f2,%f2
  29         bunlr   %cr1
  30 0:      fmr     %f1,%f2
  31         blr
  32 END(__fmin)
  33
  34 weak_alias(__fmin,fmin)
  35
  36 /* It turns out that it's safe to use this code even for single-precision.  */
  37 strong_alias(__fmin,__fminf)
  38 weak_alias(__fmin,fminf)
  39
  40 #ifdef NO_LONG_DOUBLE
  41 weak_alias(__fmin,__fminl)
  42 weak_alias(__fmin,fminl)
  43 #endif