https://gcc.gnu.org/bugzilla/show_bug.cgi?id=68764
--- Comment #2 from Patrick Palka <ppalka at gcc dot gnu.org> --- (In reply to Marek Polacek from comment #1) > I agree that this is weird but this is something the C FE likely shouldn't > do. One (possibly minor) obstacle with doing it in the middle-end is that the DECL_INITIALs of non-static local variables are cleared during gimplification so it is not all that simple to look up the definition of a const variable in order to fold away its uses.
