[Bug middle-end/105533] UBSAN: gcc/expmed.cc:3272:26: runtime error: signed integer overflow: -9223372036854775808 - 1 cannot be represented in type 'long int'

[dcb314 at hotmail dot com via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=105533

--- Comment #5 from David Binderman <dcb314 at hotmail dot com> ---
The problem with expmed.c happens with -O2 -march=znver3,
so it's more prevalent than I thought.

The problem with poly-int.h seems to require -O3.

So they look like two separate problems.