Hi I was looking at the vectorizer (http://gcc.gnu.org/projects/tree-ssa/vectorization.html) and noticed that in section 6 it says that there is no data dependence graph implemented. Also had a search throught the mailing list archives and noticed that although ddg.c exists its not used much? (http://gcc.gnu.org/ml/gcc/2005-09/msg00661.html). A grep for creat_ddg shows it's used in modulo-sched.c. So is this fertile ground for something to be implemented? Is it worth implementing a ddg graph for the vectorizer?
Thanks
