https://gcc.gnu.org/bugzilla/show_bug.cgi?id=93206
--- Comment #4 from Jakub Jelinek <jakub at gcc dot gnu.org> --- There is no error, it is a note and if some variable at some point, even short one, can't be described using just registers or memory, but needs the value of the UNSPEC to describe it, there is no var-tracking bug, it just tries to build debug info from the UNSPEC and finds out it can't.
