🚀 go-pugleaf

> Shouldn't a compiler smart enough to allocate variables to registers be
> smart enough to see that a local variable is never the operand of the
> & (address-of) operator, and thus cannot be referenced by a pointer?

God forbid, but there is probably some C program out there that relies
on being able to:
	int a,b, *ptr;

	ptr = &a;
	ptr++;
	/* ptr now points to b */
No flames please, if there is such a program out there, >I< didn't write it.

> . . . Unfortunately if you use inner scopes this isn't always possible.
> E.g.
> 
>    proc()
>    { register int blat, blog, blit;
>      ...
>      { register int glip, glop, glurp;
>        ...
>      }
>    }

I once used a 68000 compiler that would indeed ignore 'register' for inner
scope variables.  I ended up moving all the variable declarations to the head
of the procedure.
-----
John Tupper
...!decvax!microsoft!johnt