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Add rounding mode information to math-tests.h and use it in libm-test.inc.

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This commit is contained in:
Joseph Myers 2013-06-10 12:34:49 +00:00
parent 50b818bf96
commit 0efa6f8b99
5 changed files with 71 additions and 4 deletions
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12
ChangeLog
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@ -1,3 +1,15 @@
2013-06-10 Joseph Myers <joseph@codesourcery.com>
* sysdeps/generic/math-tests.h (ROUNDING_TESTS_float): New macro.
(ROUNDING_TESTS_double): Likewise.
(ROUNDING_TESTS_long_double): Likewise.
(ROUNDING_TESTS): Likewise.
* math/libm-test.inc: Include <math-tests.h>.
(IF_ROUND_INIT_FE_DOWNWARD): Use ROUNDING_TESTS.
(IF_ROUND_INIT_FE_TONEAREST): Likewise.
(IF_ROUND_INIT_FE_TOWARDZERO): Likewise.
(IF_ROUND_INIT_FE_UPWARD): Likewise.
2013-06-10 Siddhesh Poyarekar <siddhesh@redhat.com>
* benchtests/Makefile (CPPFLAGS-nonlib): Append values instead

13
math/libm-test.inc
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@ -125,6 +125,7 @@
#include <string.h>
#include <argp.h>
#include <tininess.h>
#include <math-tests.h>
/* Structure for ulp data for a test, a function, or the real or
imaginary part of a function. */
@ -1085,16 +1086,20 @@ struct test_fFF_11_data
#define IF_ROUND_INIT_ /* Empty. */
#define IF_ROUND_INIT_FE_DOWNWARD \
int save_round_mode = fegetround (); \
if (fesetround (FE_DOWNWARD) == 0)
if (ROUNDING_TESTS (FLOAT, FE_DOWNWARD) \
&& fesetround (FE_DOWNWARD) == 0)
#define IF_ROUND_INIT_FE_TONEAREST \
int save_round_mode = fegetround (); \
if (fesetround (FE_TONEAREST) == 0)
if (ROUNDING_TESTS (FLOAT, FE_TONEAREST) \
&& fesetround (FE_TONEAREST) == 0)
#define IF_ROUND_INIT_FE_TOWARDZERO \
int save_round_mode = fegetround (); \
if (fesetround (FE_TOWARDZERO) == 0)
if (ROUNDING_TESTS (FLOAT, FE_TOWARDZERO) \
&& fesetround (FE_TOWARDZERO) == 0)
#define IF_ROUND_INIT_FE_UPWARD \
int save_round_mode = fegetround (); \
if (fesetround (FE_UPWARD) == 0)
if (ROUNDING_TESTS (FLOAT, FE_UPWARD) \
&& fesetround (FE_UPWARD) == 0)
#define ROUND_RESTORE_ /* Empty. */
#define ROUND_RESTORE_FE_DOWNWARD \
fesetround (save_round_mode)

4
ports/ChangeLog.arm
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@ -1,3 +1,7 @@
2013-06-10 Joseph Myers <joseph@codesourcery.com>
* sysdeps/arm/math-tests.h: New file.
2013-06-05 Richard Henderson <rth@redhat.com>
[BZ #15583]

28
ports/sysdeps/arm/math-tests.h Normal file
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@ -0,0 +1,28 @@
/* Configuration for math tests. ARM version.
Copyright (C) 2013 Free Software Foundation, Inc.
This file is part of the GNU C Library.
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
<http://www.gnu.org/licenses/>. */
/* On systems with VFP support, but where glibc is built for
soft-float, the libgcc functions used in libc and libm do not
support rounding modes, although fesetround succeeds. */
#ifdef __SOFTFP__
# define ROUNDING_TESTS_float(MODE) ((MODE) == FE_TONEAREST)
# define ROUNDING_TESTS_double(MODE) ((MODE) == FE_TONEAREST)
# define ROUNDING_TESTS_long_double(MODE) ((MODE) == FE_TONEAREST)
#endif
#include_next <math-tests.h>

18
sysdeps/generic/math-tests.h
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@ -40,3 +40,21 @@
#ifndef SNAN_TESTS_TYPE_CAST
# define SNAN_TESTS_TYPE_CAST 1
#endif
/* Indicate whether to run tests involving a given rounding mode for a
given floating-point type, given that fesetround succeeds for that
mode. All are run if fesetround succeeds unless overridden. */
#ifndef ROUNDING_TESTS_float
# define ROUNDING_TESTS_float(MODE) 1
#endif
#ifndef ROUNDING_TESTS_double
# define ROUNDING_TESTS_double(MODE) 1
#endif
#ifndef ROUNDING_TESTS_long_double
# define ROUNDING_TESTS_long_double(MODE) 1
#endif
#define ROUNDING_TESTS(TYPE, MODE) \
(sizeof (TYPE) == sizeof (float) ? ROUNDING_TESTS_float (MODE) \
: sizeof (TYPE) == sizeof (double) ? ROUNDING_TESTS_double (MODE) \
: ROUNDING_TESTS_long_double (MODE))