https://gcc.gnu.org/bugzilla/show_bug.cgi?id=100499
--- Comment #14 from bin cheng <amker at gcc dot gnu.org> --- (In reply to Richard Biener from comment #12) > So in number_of_iterations_ne it looks like the step 's' is always constant > which makes me wonder if we can somehow use ranger to tell multiple_of_p > (type, c, s) > or at least whether, if c is x * s, the multiplication could have overflowed? Yeah, I am looking if "multiple of" can be feasibly checked in niter analysis, with help of some basic information from multiple_of_p. BTW, I am not following changes in "ranger", how should I used in analysis? or similar to value range info? Thanks