https://gcc.gnu.org/bugzilla/show_bug.cgi?id=69368
--- Comment #65 from Dominique d'Humieres <dominiq at lps dot ens.fr> --- > There is obviously no "rationale". Fact is that we don't exploit the > undefinedness explicitely but just as a side-effect of how CSE works in > DOM now. This means we don't propagate '1' as the only valid value of I > but just CSE the last three loads to the first as we know they are the > same (without knowing the actual value). How can K(1) and K(2*1) be the same without using undefinedness explicitely?
