https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63974
Jakub Jelinek <jakub at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|NEW |ASSIGNED CC| |jakub at gcc dot gnu.org Assignee|unassigned at gcc dot gnu.org |jakub at gcc dot gnu.org --- Comment #2 from Jakub Jelinek <jakub at gcc dot gnu.org> --- Created attachment 34423 --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=34423&action=edit gcc5-pr63974.patch Untested fix. The bug is that convert_memory_address (Pmode, ...) is called twice, which is not possible for VOIDmode constants. As optabs.c (indirectly from emit_indirect_jump) already calls it, because the argument is built with create_address_operand and the EXPAND_ADDRESS case in maybe_legitimize_operand calls convert_memory_address (Pmode, ...), the other convert_memory_address call is only harmful. I don't have easy access to any POINTERS_EXTEND_UNSIGNED target though, so can't test it easily.