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Always use wordsize-64 version of s_trunc.c.

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This patch replaces s_trunc.c in sysdeps/dbl-64 with the one in
sysdeps/dbl-64/wordsize-64 and removes the latter one.
The code is not changed except changes in code style.

Also adjusted the include path in x86_64 and sparc64 files.

Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
This commit is contained in:
Stefan Liebler 2019-12-11 15:09:17 +01:00
parent 9f234eafe8
commit 1c94bf0f0a
5 changed files with 12 additions and 72 deletions
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23
sysdeps/ieee754/dbl-64/s_trunc.c
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@ -27,31 +27,26 @@
double
__trunc (double x)
{
int32_t i0, j0;
uint32_t i1;
int sx;
int64_t i0, j0;
int64_t sx;
EXTRACT_WORDS (i0, i1, x);
sx = i0 & 0x80000000;
j0 = ((i0 >> 20) & 0x7ff) - 0x3ff;
if (j0 < 20)
EXTRACT_WORDS64 (i0, x);
sx = i0 & UINT64_C (0x8000000000000000);
j0 = ((i0 >> 52) & 0x7ff) - 0x3ff;
if (j0 < 52)
{
if (j0 < 0)
/* The magnitude of the number is < 1 so the result is +-0. */
INSERT_WORDS (x, sx, 0);
INSERT_WORDS64 (x, sx);
else
INSERT_WORDS (x, sx | (i0 & ~(0x000fffff >> j0)), 0);
INSERT_WORDS64 (x, sx | (i0 & ~(UINT64_C (0x000fffffffffffff) >> j0)));
}
else if (j0 > 51)
else
{
if (j0 == 0x400)
/* x is inf or NaN. */
return x + x;
}
else
{
INSERT_WORDS (x, i0, i1 & ~(0xffffffffu >> (j0 - 20)));
}
return x;
}

55
sysdeps/ieee754/dbl-64/wordsize-64/s_trunc.c
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@ -1,55 +0,0 @@
/* Truncate argument to nearest integral value not larger than the argument.
Copyright (C) 1997-2019 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Ulrich Drepper <drepper@cygnus.com>, 1997.
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, see
<https://www.gnu.org/licenses/>. */
#define NO_MATH_REDIRECT
#include <math.h>
#include <math_private.h>
#include <libm-alias-double.h>
double
__trunc (double x)
{
int64_t i0, j0;
int64_t sx;
EXTRACT_WORDS64 (i0, x);
sx = i0 & UINT64_C(0x8000000000000000);
j0 = ((i0 >> 52) & 0x7ff) - 0x3ff;
if (j0 < 52)
{
if (j0 < 0)
/* The magnitude of the number is < 1 so the result is +-0. */
INSERT_WORDS64 (x, sx);
else
INSERT_WORDS64 (x, sx | (i0 & ~(UINT64_C(0x000fffffffffffff) >> j0)));
}
else
{
if (j0 == 0x400)
/* x is inf or NaN. */
return x + x;
}
return x;
}
#ifndef __trunc
libm_alias_double (__trunc, trunc)
#endif

2
sysdeps/sparc/sparc64/fpu/multiarch/s_trunc-generic.c
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@ -1,2 +1,2 @@
#define __trunc __trunc_generic
#include <sysdeps/ieee754/dbl-64/wordsize-64/s_trunc.c>
#include <sysdeps/ieee754/dbl-64/s_trunc.c>

2
sysdeps/sparc/sparc64/fpu/multiarch/s_trunc-vis3.c
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@ -20,4 +20,4 @@
#define __trunc __trunc_vis3
#include <sysdeps/ieee754/dbl-64/wordsize-64/s_trunc.c>
#include <sysdeps/ieee754/dbl-64/s_trunc.c>

2
sysdeps/x86_64/fpu/multiarch/s_trunc-c.c
View File

@ -1,2 +1,2 @@
#define __trunc __trunc_c
#include <sysdeps/ieee754/dbl-64/wordsize-64/s_trunc.c>
#include <sysdeps/ieee754/dbl-64/s_trunc.c>