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/* $NetBSD: t_fenv.c,v 1.3 2015/12/22 14:20:59 christos Exp $ */
/*-
* Copyright (c) 2014 The NetBSD Foundation, Inc.
* All rights reserved.
*
* This code is derived from software contributed to The NetBSD Foundation
* by Martin Husemann.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
#include <sys/cdefs.h>
__RCSID("$NetBSD: t_fenv.c,v 1.3 2015/12/22 14:20:59 christos Exp $");
#include <atf-c.h>
#include <fenv.h>
#ifdef __HAVE_FENV
#include <ieeefp.h>
#include <stdlib.h>
#if __arm__ && !__SOFTFP__
/*
* Some NEON fpus do not implement IEEE exception handling,
* skip these tests if running on them and compiled for
* hard float.
*/
#define FPU_EXC_PREREQ() \
if (0 == fpsetmask(fpsetmask(FP_X_INV))) \
atf_tc_skip("FPU does not implement exception handling");
/*
* Same as above: some don't allow configuring the rounding mode.
*/
#define FPU_RND_PREREQ() \
if (0 == fpsetround(fpsetround(FP_RZ))) \
atf_tc_skip("FPU does not implement configurable " \
"rounding modes");
#endif
#ifndef FPU_EXC_PREREQ
#define FPU_EXC_PREREQ() /* nothing */
#endif
#ifndef FPU_RND_PREREQ
#define FPU_RND_PREREQ() /* nothing */
#endif
ATF_TC(fegetround);
ATF_TC_HEAD(fegetround, tc)
{
atf_tc_set_md_var(tc, "descr",
"verify the fegetround() function agrees with the legacy "
"fpsetround");
}
ATF_TC_BODY(fegetround, tc)
{
FPU_RND_PREREQ();
fpsetround(FP_RZ);
ATF_CHECK(fegetround() == FE_TOWARDZERO);
fpsetround(FP_RM);
ATF_CHECK(fegetround() == FE_DOWNWARD);
fpsetround(FP_RN);
ATF_CHECK(fegetround() == FE_TONEAREST);
fpsetround(FP_RP);
ATF_CHECK(fegetround() == FE_UPWARD);
}
ATF_TC(fesetround);
ATF_TC_HEAD(fesetround, tc)
{
atf_tc_set_md_var(tc, "descr",
"verify the fesetround() function agrees with the legacy "
"fpgetround");
}
ATF_TC_BODY(fesetround, tc)
{
FPU_RND_PREREQ();
fesetround(FE_TOWARDZERO);
ATF_CHECK(fpgetround() == FP_RZ);
fesetround(FE_DOWNWARD);
ATF_CHECK(fpgetround() == FP_RM);
fesetround(FE_TONEAREST);
ATF_CHECK(fpgetround() == FP_RN);
fesetround(FE_UPWARD);
ATF_CHECK(fpgetround() == FP_RP);
}
ATF_TC(fegetexcept);
ATF_TC_HEAD(fegetexcept, tc)
{
atf_tc_set_md_var(tc, "descr",
"verify the fegetexcept() function agrees with the legacy "
"fpsetmask()");
}
ATF_TC_BODY(fegetexcept, tc)
{
FPU_EXC_PREREQ();
fpsetmask(0);
ATF_CHECK(fegetexcept() == 0);
fpsetmask(FP_X_INV|FP_X_DZ|FP_X_OFL|FP_X_UFL|FP_X_IMP);
ATF_CHECK(fegetexcept() == (FE_INVALID|FE_DIVBYZERO|FE_OVERFLOW
|FE_UNDERFLOW|FE_INEXACT));
fpsetmask(FP_X_INV);
ATF_CHECK(fegetexcept() == FE_INVALID);
fpsetmask(FP_X_DZ);
ATF_CHECK(fegetexcept() == FE_DIVBYZERO);
fpsetmask(FP_X_OFL);
ATF_CHECK(fegetexcept() == FE_OVERFLOW);
fpsetmask(FP_X_UFL);
ATF_CHECK(fegetexcept() == FE_UNDERFLOW);
fpsetmask(FP_X_IMP);
ATF_CHECK(fegetexcept() == FE_INEXACT);
}
ATF_TC(feenableexcept);
ATF_TC_HEAD(feenableexcept, tc)
{
atf_tc_set_md_var(tc, "descr",
"verify the feenableexcept() function agrees with the legacy "
"fpgetmask()");
}
ATF_TC_BODY(feenableexcept, tc)
{
FPU_EXC_PREREQ();
fedisableexcept(FE_ALL_EXCEPT);
ATF_CHECK(fpgetmask() == 0);
feenableexcept(FE_UNDERFLOW);
ATF_CHECK(fpgetmask() == FP_X_UFL);
fedisableexcept(FE_ALL_EXCEPT);
feenableexcept(FE_OVERFLOW);
ATF_CHECK(fpgetmask() == FP_X_OFL);
fedisableexcept(FE_ALL_EXCEPT);
feenableexcept(FE_DIVBYZERO);
ATF_CHECK(fpgetmask() == FP_X_DZ);
fedisableexcept(FE_ALL_EXCEPT);
feenableexcept(FE_INEXACT);
ATF_CHECK(fpgetmask() == FP_X_IMP);
fedisableexcept(FE_ALL_EXCEPT);
feenableexcept(FE_INVALID);
ATF_CHECK(fpgetmask() == FP_X_INV);
}
ATF_TP_ADD_TCS(tp)
{
ATF_TP_ADD_TC(tp, fegetround);
ATF_TP_ADD_TC(tp, fesetround);
ATF_TP_ADD_TC(tp, fegetexcept);
ATF_TP_ADD_TC(tp, feenableexcept);
return atf_no_error();
}
#else /* no fenv.h support */
ATF_TC(t_nofenv);
ATF_TC_HEAD(t_nofenv, tc)
{
atf_tc_set_md_var(tc, "descr",
"dummy test case - no fenv.h support");
}
ATF_TC_BODY(t_nofenv, tc)
{
atf_tc_skip("no fenv.h support on this architecture");
}
ATF_TP_ADD_TCS(tp)
{
ATF_TP_ADD_TC(tp, t_nofenv);
return atf_no_error();
}
#endif
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