[Bug tree-optimization/54629] [4.8 Regression] ICE (segfault) in index_in_loop_nest tree-data-ref.h:608

[jakub at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=54629

--- Comment #2 from Jakub Jelinek <jakub at gcc dot gnu.org> 2012-09-20 07:41:01 UTC ---
Created attachment 28225
  --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=28225
gcc48-pr54629.patch

IMHO there are two issues - one is that the loop nest is freed too early,
before it is still used, and another one that on success the ddr isn't freed at
all, so we leak memory.