[Bug tree-optimization/36244] New: -ftree-parallelize-loops=4, vectorizer enabled, ICE

["razya at il dot ibm dot com" <gcc-bugzilla at gcc dot gnu dot org>]

/* { dg-do compile } */
/* { dg-options "-O3 -ftree-parallelize-loops=4 -c" } */

struct p7prior_s {

  int   mnum;                   /* number of mat emission Dirichlet mixtures */
  float mq[200];          /* probabilities of mnum components          */
  float m[200][20];  /* match emission terms per mix component    */

};

struct p7prior_s *default_amino_prior(void);
struct p7prior_s *P7AllocPrior(void);

struct p7prior_s *
default_amino_prior(void)
{
  struct p7prior_s *pri;
  int x, q;

  static float defmq[5] = {
    0.178091, 0.056591, 0.0960191, 0.0781233, 0.0834977 };
 static float defm[5][6] = {
    { 0.270671, 0.039848, 0.017576, 0.016415, 0.014268,
      0.216147 },
    { 0.021465, 0.010300, 0.011741, 0.010883, 0.385651,
      0.029156 },
    { 0.561459, 0.045448, 0.438366, 0.764167, 0.087364,
      0.583402 },
    { 0.070143, 0.011140, 0.019479, 0.094657, 0.013162,
      0.073732 },
    { 0.041103, 0.014794, 0.005610, 0.010216, 0.153602,
      0.012049 }
  };

  pri = P7AllocPrior();
  pri->mnum  = 5;
  for (q = 0; q < pri->mnum; q++)
    {
      pri->mq[q] = defmq[q];
      for (x = 0; x < 6; x++)
        pri->m[q][x] = defm[q][x];
    }
  return pri;
}

prior.c:17: internal compiler error: in add_call_clobber_ops, at
tree-ssa-operands.c:1822
this was tested on power6, when both vectoriztion and autopar are enabled.
no failure when enabled seperately.


-- 
           Summary: -ftree-parallelize-loops=4, vectorizer enabled, ICE
           Product: gcc
           Version: 4.4.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: tree-optimization
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: razya at il dot ibm dot com


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=36244