------- Comment #16 from pinskia at gcc dot gnu dot org 2010-02-16 19:57 ------- > In this case, the loop itself is "empty" and we can replace every use of the > phi with "n" (exit value of the iv).
I don't think that is done by remove_empty_loop anyways and it is already done by sccp (Propagation of constants using scev) which is enabled at -O1. -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=42906
