sysdeps/powerpc/powerpc32/fpu/s_lrint.S

   1 /* Round double to long int.  PowerPC32 version.
   2    Copyright (C) 2004, 2006 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 Lesser General Public
   7    License as published by the Free Software Foundation; either
   8    version 2.1 of the 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    Lesser General Public License for more details.
  14
  15    You should have received a copy of the GNU Lesser General Public
  16    License along with the GNU C Library; if not, see
  17    <http://www.gnu.org/licenses/>.  */
  18
  19 #include <sysdep.h>
  20 #include <math_ldbl_opt.h>
  21
  22 /* long int[r3] __lrint (double x[fp1])  */
  23 ENTRY (__lrint)
  24         stwu    r1,-16(r1)
  25         fctiw   fp13,fp1
  26         stfd    fp13,8(r1)
  27         nop     /* Insure the following load is in a different dispatch group */
  28         nop     /* to avoid pipe stall on POWER4&5.  */
  29         nop
  30         lwz     r3,12(r1)
  31         addi    r1,r1,16
  32         blr
  33         END (__lrint)
  34
  35 weak_alias (__lrint, lrint)
  36
  37 strong_alias (__lrint, __lrintf)
  38 weak_alias (__lrint, lrintf)
  39
  40 #ifdef NO_LONG_DOUBLE
  41 strong_alias (__lrint, __lrintl)
  42 weak_alias (__lrint, lrintl)
  43 #endif
  44 #if LONG_DOUBLE_COMPAT(libm, GLIBC_2_1)
  45 compat_symbol (libm, __lrint, lrintl, GLIBC_2_1)
  46 #endif