[Bug tree-optimization/41016] New: ICE in build_int_cst_wide with -O1

["mark at halcy0n dot com" <gcc-bugzilla at gcc dot gnu dot org>]

The following code ICEs with -O1 on gcc-4.4:

typedef struct _IO_FILE FILE;
void
CompareRNAStructures (FILE * ofp, int start, int L, char *ss_true, char *ss)
{
  int i;
  float agree = 0.;
  float pairs = 0.;
  float pairs_true = 0.;
  for (i = 0; i < L; i++)
    {
      pairs_true += 1.;
      agree += 1.;
    }
  if (((int) pairs % 2 != 0) || ((int) pairs_true % 2 != 0)
      || ((int) agree % 2 != 0))
    Die
      ("Error in CompareRNAStrutures(); odd number of paired nucleotides\n");
}


Let me know what other information would be helpful.


-- 
           Summary: ICE in build_int_cst_wide with -O1
           Product: gcc
           Version: 4.4.1
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: tree-optimization
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: mark at halcy0n dot com


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=41016