port-arm/46953: lib/libm/t_ceil fails on ARM

[msaitoh%execsw.org@localhost]

>Number:         46953
>Category:       port-arm
>Synopsis:       lib/libm/t_ceil fails on ARM
>Confidential:   no
>Severity:       non-critical
>Priority:       medium
>Responsible:    port-arm-maintainer
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Fri Sep 14 07:05:01 +0000 2012
>Originator:     SAITOH Masanobu
>Release:        netbsd-6, -current
>Organization:
-----------------------------------------------
                SAITOH Masanobu (msaitoh%netbsd.org@localhost)
>Environment:
                netbsd-6, -current
Architecture: arm
Machine: evbarm
>Description:
        Some libm tests fail on arm.

        Small test program is:

============ neginf.c ==================
#include <stdio.h>

double neginf0 = -1.0L / 0.0;
double neginf1 = -1.0L / 0.0;

int
main(int argc, char *argv[])
{
        printf("%lf\n", neginf0 + neginf1);

        return 0;
}
====================================

        On i386:
                % ./neginf
                -inf

        On arm:
                % ./neginf
                0.000000

>How-To-Repeat:
        cd /usr/test/lib/libm
        atf-run | atf-report
>Fix:
        I don't know.