https://gcc.gnu.org/bugzilla/show_bug.cgi?id=109940
Richard Biener <rguenth at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |rsandifo at gcc dot gnu.org --- Comment #3 from Richard Biener <rguenth at gcc dot gnu.org> --- If that makes a difference then it should be because the compute_rd () dataflow computes something different. The CFG is quite regular as well so I guess we now hit a latent issue present before but not exposed with the other iteration order (but the dataflow solution shouldn't depend on the iteration order). Somebody familiar with the pass needs to sit down and analyze what goes wrong.