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From: ludo@gnu.org (Ludovic Courtès)
To: guile-devel@gnu.org
Subject: GLIL->C compilation
Date: Sat, 20 Nov 2010 00:11:16 +0100	[thread overview]
Message-ID: <87zkt4vrhn.fsf_-_@gnu.org> (raw)
In-Reply-To: 201011052219.54556.stefan.itampe@gmail.com

Hi,

Stefan Israelsson Tampe <stefan.itampe@gmail.com> writes:

> #include "cfkn.h"
> #define LOCAL_REF(i)     fp[i]
> #define LOCAL_SET(i,v)   fp[i] = (v)
> void cfkn3676(SCM *fp, SCM **spp)
> {
>  /* setup of environment */
>  SCM *objects, *free, program, *sp, sss[100];
>  sp = sss;
>  program = fp[-1];
>  objects = SCM_I_VECTOR_WELTS (SCM_PROGRAM_OBJTABLE (program));    
>  free    = SCM_PROGRAM_FREE_VARIABLES(program);
>  /* compiled section */
>  LCASE3666:
>
>
> goto L3668;
> LCASE3665:
> sp++; *sp = LOCAL_REF(1);
> sp++; *sp = SCM_I_MAKINUM(0);
> sp-=2; if(!scm_is_eq(sp[1],sp[2])) goto L3669;
> sp++; *sp = LOCAL_REF(2);

[...]

Comparing this to the VM’s bytecode interpreter should show the overhead
incurred by instruction dispatch.

Did you try to measure this?  That’d be interesting.

Thanks,
Ludo’.




  reply	other threads:[~2010-11-19 23:11 UTC|newest]

Thread overview: 33+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2010-10-21 20:23 The progress of hacking guile and prolog Stefan Israelsson Tampe
2010-11-03 23:43 ` Ludovic Courtès
2010-11-04  2:40   ` Noah Lavine
2010-11-10 17:55     ` Stefan Israelsson Tampe
2010-11-11 19:10       ` Noah Lavine
2010-11-11 16:26     ` Ludovic Courtès
2010-11-11 19:13       ` Noah Lavine
2010-11-11 19:15       ` Noah Lavine
2010-11-15 23:10     ` Typechecking I Stefan Israelsson Tampe
2010-11-20 11:46       ` Andy Wingo
2010-11-20 11:25     ` The progress of hacking guile and prolog Andy Wingo
2010-11-24  1:54       ` Noah Lavine
2010-11-24 16:45         ` Stefan Israelsson Tampe
2010-11-24 18:00         ` piper schemigan Stefan Israelsson Tampe
2010-11-24 20:18           ` Andreas Rottmann
2010-11-25 21:17           ` Ludovic Courtès
2010-11-26 22:18             ` Stefan Israelsson Tampe
2010-11-28 22:30               ` Guile-SCSH Ludovic Courtès
2010-11-28 23:02                 ` Guile-SCSH Stefan Israelsson Tampe
2010-11-28 23:24                   ` Guile-SCSH Jose A. Ortega Ruiz
2010-11-29 18:56                     ` Guile-SCSH Stefan Israelsson Tampe
2010-11-29 21:26                     ` http://gitorious.org/guile-scsh/guile-scsh Stefan Israelsson Tampe
2010-11-30 23:21                       ` Guile-Facade Ludovic Courtès
2010-11-25 21:26         ` The progress of hacking guile and prolog Ludovic Courtès
2010-11-26 16:41           ` Noah Lavine
2010-11-26 10:45         ` Andy Wingo
2010-11-20 11:26     ` Andy Wingo
2010-11-04 17:57   ` Stefan Israelsson Tampe
2010-11-05 21:19   ` Stefan Israelsson Tampe
2010-11-19 23:11     ` Ludovic Courtès [this message]
2010-11-19 23:20       ` GLIL->C compilation Stefan Israelsson Tampe
2010-11-19 23:56         ` Ludovic Courtès
2010-11-20 12:18           ` Andy Wingo

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