------- Comment #1 from tlin at a10networks dot com 2009-05-30 23:08 ------- The one compiled with O2 has wrong binary code.
The problem occurs when GCC compiles the following lines with O2 flag.
"
if (pdw && memcmp(a1, a2, pdw << 2))
return 0;
"
In the binary code, pdw is not shifted left by 2, which leads to wrong result.
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=40312
