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* io/Makefile (CFLAGS-fstatat.c): Set.
(CFLAGS-fstatat64.c): Likewise. (CFLAGS-mknodat.c): Likewise. * sysdeps/ieee754/ldbl-128ibm/s_llrintl.c: Comment fixes. * sysdeps/ieee754/ldbl-128ibm/s_llroundl.c: Likewise. * sysdeps/ieee754/ldbl-128ibm/s_lrintl.c: Rewritten. * sysdeps/ieee754/ldbl-128ibm/s_lroundl.c: Rewritten. 2006-09-14 Jakub Jelinek <jakub@redhat.com>
This commit is contained in:
Ulrich Drepper
parent
bd6d3b7dad
commit
fb146a76a5
13
ChangeLog
13
ChangeLog
@ -1,6 +1,17 @@
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2006-09-14 Jakub Jelinek <jakub@redhat.com>
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* io/Makefile (CFLAGS-fstatat.c): Set.
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(CFLAGS-fstatat64.c): Likewise.
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(CFLAGS-mknodat.c): Likewise.
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* sysdeps/ieee754/ldbl-128ibm/s_llrintl.c: Comment fixes.
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* sysdeps/ieee754/ldbl-128ibm/s_llroundl.c: Likewise.
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* sysdeps/ieee754/ldbl-128ibm/s_lrintl.c: Rewritten.
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* sysdeps/ieee754/ldbl-128ibm/s_lroundl.c: Rewritten.
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2006-09-14 Jakub Jelinek <jakub@redhat.com>
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Steven Munroe <sjmunroe@us.ibm.com>
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* sysdeps/powerpc/dl-procinfo.c (_dl_powerpc_cap_flags): Add 4 new cap
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names to the beginning. Rename "cell" to "cellbe".
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(_dl_powerpc_platforms): New.
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@ -98,6 +98,9 @@ CFLAGS-mknod.c = -DHAVE_DOT_HIDDEN
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CFLAGS-stat64.c = -DHAVE_DOT_HIDDEN
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CFLAGS-fstat64.c = -DHAVE_DOT_HIDDEN
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CFLAGS-lstat64.c = -DHAVE_DOT_HIDDEN
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CFLAGS-fstatat.c = -DHAVE_DOT_HIDDEN
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CFLAGS-fstatat64.c = -DHAVE_DOT_HIDDEN
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CFLAGS-mknodat.c = -DHAVE_DOT_HIDDEN
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endif
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test-stat2-ARGS = Makefile . $(objpfx)test-stat2
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@ -1,4 +1,4 @@
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/* Round to int long double floating-point values.
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/* Round to long long int long double floating-point values.
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IBM extended format long double version.
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Copyright (C) 2006 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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@ -18,9 +18,6 @@
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Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
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02111-1307 USA. */
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/* This has been coded in assembler because GCC makes such a mess of it
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when it's coded in C. */
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#include <math.h>
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#include <fenv_libc.h>
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#include <math_ldbl_opt.h>
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@ -1,4 +1,4 @@
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/* Round to long long, long double floating-point values.
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/* Round to long long int long double floating-point values.
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IBM extended format long double version.
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Copyright (C) 2006 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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@ -18,9 +18,6 @@
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Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
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02111-1307 USA. */
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/* This has been coded in assembler because GCC makes such a mess of it
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when it's coded in C. */
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#include <math.h>
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#include <fenv_libc.h>
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#include <math_ldbl_opt.h>
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@ -1,9 +1,162 @@
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/* FIXME */
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#include <math.h>
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#include <math_ldbl_opt.h>
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/* Round to long int long double floating-point values.
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IBM extended format long double version.
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Copyright (C) 2006 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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long int __lrintl (long double d)
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, write to the Free
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Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
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02111-1307 USA. */
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#include <math.h>
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#include <fenv_libc.h>
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#include <math_ldbl_opt.h>
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#include <float.h>
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#include <ieee754.h>
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#ifdef __STDC__
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long
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__lrintl (long double x)
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#else
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long
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__lrintl (x)
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long double x;
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#endif
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{
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return llrintl (d);
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double xh, xl;
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long res, hi, lo;
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int save_round;
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ldbl_unpack (x, &xh, &xl);
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/* Limit the range of values handled by the conversion to long.
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We do this because we aren't sure whether that conversion properly
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raises FE_INVALID. */
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if (
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#if __LONG_MAX__ == 2147483647
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__builtin_expect
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((__builtin_fabs (xh) <= (double) __LONG_MAX__ + 2), 1)
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#else
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__builtin_expect
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((__builtin_fabs (xh) <= -(double) (-__LONG_MAX__ - 1)), 1)
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#endif
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#if !defined (FE_INVALID)
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|| 1
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#endif
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)
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{
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save_round = fegetround ();
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#if __LONG_MAX__ == 2147483647
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long long llhi = (long long) xh;
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if (llhi != (long) llhi)
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hi = llhi < 0 ? -__LONG_MAX__ - 1 : __LONG_MAX__;
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else
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hi = llhi;
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xh -= hi;
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#else
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if (__builtin_expect ((xh == -(double) (-__LONG_MAX__ - 1)), 0))
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{
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/* When XH is 9223372036854775808.0, converting to long long will
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overflow, resulting in an invalid operation. However, XL might
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be negative and of sufficient magnitude that the overall long
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double is in fact in range. Avoid raising an exception. In any
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case we need to convert this value specially, because
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the converted value is not exactly represented as a double
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thus subtracting HI from XH suffers rounding error. */
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hi = __LONG_MAX__;
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xh = 1.0;
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}
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else
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{
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hi = (long) xh;
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xh -= hi;
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}
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#endif
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ldbl_canonicalize (&xh, &xl);
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lo = (long) xh;
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/* Peg at max/min values, assuming that the above conversions do so.
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Strictly speaking, we can return anything for values that overflow,
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but this is more useful. */
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res = hi + lo;
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/* This is just sign(hi) == sign(lo) && sign(res) != sign(hi). */
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if (__builtin_expect (((~(hi ^ lo) & (res ^ hi)) < 0), 0))
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goto overflow;
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xh -= lo;
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ldbl_canonicalize (&xh, &xl);
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hi = res;
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switch (save_round)
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{
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case FE_TONEAREST:
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if (fabs (xh) < 0.5
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|| (fabs (xh) == 0.5
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&& ((xh > 0.0 && xl < 0.0)
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|| (xh < 0.0 && xl > 0.0)
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|| (xl == 0.0 && (res & 1) == 0))))
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return res;
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if (xh < 0.0)
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res -= 1;
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else
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res += 1;
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break;
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case FE_TOWARDZERO:
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if (res > 0 && (xh < 0.0 || (xh == 0.0 && xl < 0.0)))
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res -= 1;
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else if (res < 0 && (xh > 0.0 || (xh == 0.0 && xl > 0.0)))
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res += 1;
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return res;
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break;
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case FE_UPWARD:
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if (xh > 0.0 || (xh == 0.0 && xl > 0.0))
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res += 1;
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break;
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case FE_DOWNWARD:
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if (xh < 0.0 || (xh == 0.0 && xl < 0.0))
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res -= 1;
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break;
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}
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if (__builtin_expect (((~(hi ^ (res - hi)) & (res ^ hi)) < 0), 0))
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goto overflow;
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return res;
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}
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else
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{
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if (xh > 0.0)
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hi = __LONG_MAX__;
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else if (xh < 0.0)
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hi = -__LONG_MAX__ - 1;
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else
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/* Nan */
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hi = 0;
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}
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overflow:
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#ifdef FE_INVALID
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feraiseexcept (FE_INVALID);
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#endif
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return hi;
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}
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long_double_symbol (libm, __lrintl, lrintl);
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@ -1,9 +1,142 @@
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/* FIXME */
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#include <math.h>
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#include <math_ldbl_opt.h>
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/* Round to long int long double floating-point values.
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IBM extended format long double version.
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Copyright (C) 2006 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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long int __lroundl (long double d)
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, write to the Free
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Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
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02111-1307 USA. */
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#include <math.h>
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#include <fenv_libc.h>
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#include <math_ldbl_opt.h>
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#include <float.h>
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#include <ieee754.h>
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#ifdef __STDC__
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long
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__lroundl (long double x)
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#else
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long
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__lroundl (x)
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long double x;
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#endif
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{
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return llroundl (d);
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double xh, xl;
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long res, hi, lo;
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ldbl_unpack (x, &xh, &xl);
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/* Limit the range of values handled by the conversion to long.
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We do this because we aren't sure whether that conversion properly
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raises FE_INVALID. */
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if (
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#if __LONG_MAX__ == 2147483647
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__builtin_expect
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((__builtin_fabs (xh) <= (double) __LONG_MAX__ + 2), 1)
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#else
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__builtin_expect
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((__builtin_fabs (xh) <= -(double) (-__LONG_MAX__ - 1)), 1)
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#endif
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#if !defined (FE_INVALID)
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|| 1
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#endif
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)
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{
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#if __LONG_MAX__ == 2147483647
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long long llhi = (long long) xh;
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if (llhi != (long) llhi)
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hi = llhi < 0 ? -__LONG_MAX__ - 1 : __LONG_MAX__;
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else
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hi = llhi;
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xh -= hi;
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#else
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if (__builtin_expect ((xh == -(double) (-__LONG_MAX__ - 1)), 0))
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{
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/* When XH is 9223372036854775808.0, converting to long long will
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overflow, resulting in an invalid operation. However, XL might
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be negative and of sufficient magnitude that the overall long
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double is in fact in range. Avoid raising an exception. In any
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case we need to convert this value specially, because
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the converted value is not exactly represented as a double
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thus subtracting HI from XH suffers rounding error. */
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hi = __LONG_MAX__;
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xh = 1.0;
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}
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else
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{
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hi = (long) xh;
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xh -= hi;
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}
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#endif
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ldbl_canonicalize (&xh, &xl);
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lo = (long) xh;
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/* Peg at max/min values, assuming that the above conversions do so.
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Strictly speaking, we can return anything for values that overflow,
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but this is more useful. */
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res = hi + lo;
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/* This is just sign(hi) == sign(lo) && sign(res) != sign(hi). */
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if (__builtin_expect (((~(hi ^ lo) & (res ^ hi)) < 0), 0))
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goto overflow;
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xh -= lo;
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ldbl_canonicalize (&xh, &xl);
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hi = res;
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if (xh > 0.5)
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{
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res += 1;
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}
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else if (xh == 0.5)
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{
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if (xl > 0.0 || (xl == 0.0 && res >= 0))
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res += 1;
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}
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else if (-xh > 0.5)
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{
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res -= 1;
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}
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else if (-xh == 0.5)
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{
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if (xl < 0.0 || (xl == 0.0 && res <= 0))
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res -= 1;
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}
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if (__builtin_expect (((~(hi ^ (res - hi)) & (res ^ hi)) < 0), 0))
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goto overflow;
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return res;
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}
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else
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{
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if (xh > 0.0)
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hi = __LONG_MAX__;
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else if (xh < 0.0)
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hi = -__LONG_MAX__ - 1;
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else
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/* Nan */
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hi = 0;
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}
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overflow:
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#ifdef FE_INVALID
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feraiseexcept (FE_INVALID);
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#endif
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return hi;
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}
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long_double_symbol (libm, __lroundl, lroundl);
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