https://gcc.gnu.org/bugzilla/show_bug.cgi?id=79499
Jakub Jelinek <jakub at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|NEW |ASSIGNED Assignee|unassigned at gcc dot gnu.org |jakub at gcc dot gnu.org --- Comment #3 from Jakub Jelinek <jakub at gcc dot gnu.org> --- Created attachment 41883 --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=41883&action=edit gcc8-pr79499.patch thread_prologue_and_epilogue_insns attempts to guess where commit_edge_insertions inserted the sequences, but in this case guesses it wrong. The untested patch tries to determine it in a different way, without any guessing.