[Bug sanitizer/79589] ICE in gimplify_compound_expr (gimplify.c:5712) with -fsanitize=undefined

[mpolacek at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=79589

--- Comment #2 from Marek Polacek <mpolacek at gcc dot gnu.org> ---
The problem seems to be that we've got a COMPOUND_EXPR with null:
, SAVE_EXPR <__for_begin.0>;