Re: [Caml-list] Inlining across functors (was: O'Caml vs C++: a little benchmark)

[malc <malc@pulsesoft.com>]

On Mon, 19 Aug 2002, Thorsten Ohl wrote:

> Xavier Leroy <xavier.leroy@inria.fr> writes:
> 
> > Just for the record: ocamlopt does perform inlining across
> > compilation units (via the information stored in .cmx files).  What
> > it doesn't do, however, is inlining and specialization of recursive
> > function definitions.
> 
> However, it appears that it doesn't inline across functors.  For
> example, in
snip
> 
> Is this because the signature M can make no guarantee that op is never
> a recursive function? Do all functor applications fall under the `no
> inlining and specialization of recursive function definitions' clause?

Yes. With http://algol.prosalg.no/~malc/code/patches/specfun.tar.gz 
(patch against 3.04) you will get this instead:

*** Linearized code                                                             
Opt_f2_72:                                                                      
  A/11[%ecx] := [env/10[%ecx] + 12]                                             
  A/12[%ecx] := [A/11[%ecx]]                                                    
  tailcall "Opt_f_62" R/0[%eax]                                                 
  R/1[%ebx]                                                                     
  R/2[%ecx]   

-- 
mailto:malc@pulsesoft.com

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