[Bug tree-optimization/37686] [4.4 Regression] Building of CPU2000's bzip2 with peak flags with -mcpu=power4 fails with an ICE.

[jakub at gcc dot gnu dot org]

------- Comment #16 from jakub at gcc dot gnu dot org  2008-10-02 15:03 -------
Wonder whether just am_vector_index_for_loop shouldn't be:
static inline int
am_vector_index_for_loop (struct access_matrix *access_matrix, int loop_num)
{
  int depth1 = loop_depth (get_loop (loop_num));
  int depth2 = loop_depth (get_loop (AM_LOOP_NEST_NUM (access_matrix)));
  gcc_assert (depth1 >= depth2
              && depth1 - depth2 <= AM_NB_INDUCTION_VARS (access_matrix));
  return depth1 - depth2;
}
Certainly subtracting two loop_num numbers doesn't make much sense to me.


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=37686