[Bug tree-optimization/48189] New: [4.3/4.4/4.5/4.6/4.7 Regression] ICE: SIGFPE (division by zero) in in predict_loops () at predict.c:991 with --param max-predicted-iterations=0

["zsojka at seznam dot cz" <gcc-bugzilla at gcc dot gnu dot org>]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=48189

           Summary: [4.3/4.4/4.5/4.6/4.7 Regression] ICE: SIGFPE (division
                    by zero) in in predict_loops () at predict.c:991 with
                    --param max-predicted-iterations=0
           Product: gcc
           Version: 4.7.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: tree-optimization
        AssignedTo: unassigned@gcc.gnu.org
        ReportedBy: zsojka@seznam.cz
              Host: x86_64-pc-linux-gnu
            Target: x86_64-pc-linux-gnu


Created attachment 23708
  --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=23708
reduced testcase

Compiler output:
$ gcc -O --param max-predicted-iterations=0 testcase.c
testcase.c: In function 'foo':
testcase.c:11:1: internal compiler error: Floating point exception
Please submit a full bug report,
with preprocessed source if appropriate.
See <http://gcc.gnu.org/bugs.html> for instructions.

Program received signal SIGFPE, Arithmetic exception.
0x000000000080aab2 in predict_loops () at /mnt/svn/gcc-trunk/gcc/predict.c:991
991               probability = ((REG_BR_PROB_BASE + nitercst / 2) / nitercst);