> On May 29, 2018, at 5:49 AM, Richard Biener <richard.guent...@gmail.com>
> wrote:
> ...
> It might be a "regression" with the POINTER_MINUS_EXPR introduction.
> You can debug this with gdb when you break on 'pointer_diff'. For me
> on x86_64 this builds a POINTER_DIFF_EXPR: (char *) &s.f - &s.b
> of ptrdiff_t. That a conversion breaks the simplification tells us that
> somewhere we possibly fail to simplify it (maybe even during assembling).
>
> You might want to file a bug for the 'long long' issue.
Done, https://gcc.gnu.org/bugzilla/show_bug.cgi?id=85974
paul
