https://gcc.gnu.org/bugzilla/show_bug.cgi?id=103241
--- Comment #14 from Alexandre Oliva <aoliva at gcc dot gnu.org> --- Hi, Will, Jakub, Martin, There's nothing particularly unusual about apparently empty ranges, especially when views are enabled, since the very point of location views is to enable multiple states to be distinguished at the same PC. It is a little odd that an additional location entry gets emitted for prot at function entry. I suppose inspection of gimple dumps will show some SSA assignment apparently setting some prot version, and that we end up outputting a new entry for it. The difference between the two locations, one without and the other with DW_OP_piece, suggests that some internal state change was perceived between one view and the other; it might be something about (do-nothing) promotions between the argument bindings for the prototype and the body. We might be able to get rid of the restatement of the binding with some more effort.
