[llvm-dev] [cfe-dev] Zero length function pointer equality

[David Blaikie via llvm-dev]

On Mon, Mar 22, 2021 at 7:39 AM <paul.robinson at sony.com> wrote:

> > I'm inclined to omit the trap after a call to a noreturn function
> > for brevity - even though it does leave the possibility of
> > violating the noreturn contract leading to that fallthrough UB.
>
> This is specifically the case where we needed it, at least when the
> noreturn call is in the last block. Which is commonly the case, a
> noreturn call is likely to have its block laid out at the end of a
> function.
> --paulr
>

Yeah, not suggesting removing that option or changing those who've opted
into that behavior - only about the default when platforms haven't
otherwise cared/have already been living with zero length functions.

- Dave
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