https://gcc.gnu.org/bugzilla/show_bug.cgi?id=81306
--- Comment #4 from Marek Polacek <mpolacek at gcc dot gnu.org> ---
I've reproduced the issue but don't know what to do about it, it doesn't seem
to be a bug in the warning. I looks like the macro maps contains holes:
cc1: note: token 77 has x-location == y-location == 0
78: 0, 0
cc1: note: token 78 has x-location == y-location == 0
79: 0, 0
cc1: note: token 79 has x-location == y-location == 0
80: 0, 0
cc1: note: token 80 has x-location == y-location == 0
81: 0, 0
cc1: note: token 81 has x-location == y-location == 0
82: 0, 0
cc1: note: token 82 has x-location == y-location == 0
83: 0, 0
cc1: note: token 83 has x-location == y-location == 0
84: 0, 0
cc1: note: token 84 has x-location == y-location == 0
85: 0, 0
cc1: note: token 85 has x-location == y-location == 0
86: 0, 0
cc1: note: token 86 has x-location == y-location == 0
87: 0, 0
cc1: note: token 87 has x-location == y-location == 0
88: 0, 0
cc1: note: token 88 has x-location == y-location == 0
89: 0, 0
cc1: note: token 89 has x-location == y-location == 0
90: 0, 0
cc1: note: token 90 has x-location == y-location == 0
