https://gcc.gnu.org/bugzilla/show_bug.cgi?id=92347
--- Comment #4 from avieira at gcc dot gnu.org --- The second case seems to be because vectorizable_simd_clone_call seems to be inserting values and phi-nodes on the epilogue's preheader edge which uses a value defined in the main loop's preheader edge (created by the main loop's call to vectorizable_simd_clone_call). However this definition does not dominate the use, as the main loop may have been skipped. Not entirely sure what the best action is here, I didn't get enough time to figure out what these values represent.
