[Bug preprocessor/96391] [10 Regression] ICE in linemap_compare_locations on "CONST VOID" in large C++ files

[rguenth at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=96391

--- Comment #28 from Richard Biener <rguenth at gcc dot gnu.org> ---
The patch should be further backported if it doesn't cause any issues.