https://gcc.gnu.org/bugzilla/show_bug.cgi?id=71906
--- Comment #4 from Jakub Jelinek <jakub at gcc dot gnu.org> --- Created attachment 38923 --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=38923&action=edit gcc7-pr71906-wip.patch Untested WIP patch, that should fix the vara, varb and vare cases at -O0, for optimized builds the DW_OP_call4 isn't the best thing to do, if the _var*/.var* argument/variable doesn't live in memory. I'll try tomorrow adjusting it during late debug when we have location info for the variable/parameter.
