On Fri, 8 Jan 2021 09:48:44 -0000 (UTC)
"Kerr-Mudd,John"  wrote:

> On Wed, 06 Jan 2021 12:42:05 GMT, Ahem A Rivet's Shot 
> wrote:
>
> > On Wed, 6 Jan 2021 14:17:30 +0200
> > Tauno Voipio  wrote:
> >
> >> This is a common construction in compiler-generated
> >> machine code, if the first function calls another
> >> just before return.
> >>
> >> bar:    .cfi_startproc
> >>          ... do something
> >>          call foo
> >>          ret
> >
> >      I recall optimising things like that by changing the last two
> lines
> > to:
> >      jmp foo
> >
> >> foo:    .. do more ..
> >>          ret
> >
>
> I'm naive; what's the problem with:
>
>
> bar:    .cfi_startproc
>          ... do something
>
> ;;;          call foo
> ;;;         ret
> ; just fallthru to execute foo and exit.
>
> foo:    .. do more ..
>           ret

 Nothing as long as you only have one bar for your foo, often foo
was common finishing for several bars.

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