[Bug target/63908] New: [e500v2] "float_bessel"case failed on e500v2 platforms

[leimaohui at cn dot fujitsu.com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63908

            Bug ID: 63908
           Summary: [e500v2] "float_bessel"case failed on e500v2 platforms
           Product: gcc
           Version: 4.9.1
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: target
          Assignee: unassigned at gcc dot gnu.org
          Reporter: leimaohui at cn dot fujitsu.com

I used yocto 1.7 to make a rootfs and toolchain.And then test LTP.

gcc :4.9.1
kernel :3.4.74
LTP version: 20120903

Some cases failed in powerpc e500v2. But these cases are PASS in i586 and
armv7.

'float_bessel' is one of the failed cases. The log likes below:
###################################
float_bessel    1  TPASS  :  Test passed
float_bessel    0  TINFO  :  float_bessel: will run for 500 loops; using . as a
data directory
float_bessel    0  TINFO  :  float_bessel: will run 5 functions, 20 threads per
function
float_bessel    0  TINFO  :  signal handler 1216373856 started
float_bessel    0  TINFO  :  Signal handler starts waiting...
float_bessel    0  TINFO  :  initial thread: Waiting for 100 threads to finish
sh: line 1: 12822 Aborted                 float_bessel -v
###################################
In addition,'float_exp_log','float_iperb','float_power'and 'float_trigo' are
failed and have the similar phenomenon.

Steps:
######
1. root@localhost:~# cd /opt/ltp/
2. root@localhost:/opt/ltp# ./runltp -s float_bessel
######

Is there anybody give me some suggestions?