[Bug target/65261] [5 Regression] bootstrap-ubsan ppc64le: gcc/libcpp/lex.c:552:30: runtime error: load of misaligned address 0x01002172dfc6 for type 'const uchar', which requires 16 byte alignment

[trippels at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65261

--- Comment #1 from Markus Trippelsdorf <trippels at gcc dot gnu.org> ---
Maybe just adding __attribute__ ((no_sanitize_undefined)) to the function
is the right solution it this case?