The following program:

#include <limits.h>
int f(long a, long b);
int main()
{
  return f(LONG_MIN, 1);
}
int f(long a, long b)
{
  return a / b;
}

produces a "Floating exception (core dumped)" on alpha-unknown-freebsd5.2.1
(spe149.testdrive.hp.com) with:
gcc version 3.4.2 and gcc version 3.3.3 [FreeBSD] 20031106.

The test program was compiled without any flags:
spe149.testdrive.hp.com> /tmp/make/bin/gcc test3.c
spe149.testdrive.hp.com> ./a.out
Floating exception (core dumped)
spe149.testdrive.hp.com> /tmp/make/bin/gcc -v
Reading specs from /tmp/make/lib/gcc/alpha-unknown-freebsd5.2.1/3.4.2/specs
Configured with: ./configure --prefix=/tmp/gcc : (reconfigured) ./configure
--prefix=/tmp/gcc : (reconfigured) ./configure --prefix=/tmp/make
--enable-languages=c
Thread model: posix
gcc version 3.4.2

The problem seems to be in the internal function "__divq" which produces the
exception.