On Wed, 12 Nov 2003, Leopold Toetsch wrote:
> Dan Sugalski <[EMAIL PROTECTED]> wrote:
>
> [ I,N,S counts ]
>
> > 6) Note that non-PMC counts only need to be filled in if we're marked
> > "prototyped"
>
> Again, this is IMHO unneeded or at least suboptimal. The caller has 3
> more instructions. And what should the assembler generate for the
> callee?
>
> if I1 == 0 goto no_iparam
> # I5 is valid
> no_iparam: # now what
You pitch an exception.
> When this is for some vararg stuff, it's by far simpler to check one
> param count, then to have 4 counts.
>
> All possible speedup is probably gone, when there are expensive runtime
> checks.
Not when you're trading arg counts for PMC construction it isn't, no.
Dan
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Dan Sugalski even samurai
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