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Programming > C++ Moderated > Re: Macro To Ge...
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Re: Macro To Generate Inline Assembly

by Le Chaud Lapin <jaibuduvin@[EMAIL PROTECTED] > Apr 30, 2008 at 10:42 AM

On Apr 30, 5:13 am, Mathias Gaunard <loufo...@[EMAIL PROTECTED]
> wrote:
> On 30 avr, 01:38, Le Chaud Lapin <jaibudu...@[EMAIL PROTECTED]
> wrote:
>
> > With macros, I don't have to worry about return value, or reference
> > indirection elimination, or prolog/epilog code that I might have to
> > struggle to get rid of. I simply use one line of code for say,
> > MULTIPLY, and be done with it:
>
> So basically you're using macros because you're afraid your compiler
> won't be able to inline functions, do constant propagation and alias
> analysis as it should.
>
> Why not just generate the assembler in both cases and see if there is
> any difference.

Because I do not have access to the 20 or so compilers that will be
used to compile my code, and the likelihood that I will be able to
control the exact code generated is greater for asm+macro than asm
+inline function.

Also, if inline asm is not available on a compiler, as is case of
Visual C++ for Itanium, there is possibilty of fallback to a function.

-Le Chaud Lapin-


-- 
      [ See http://www.gotw.ca/resources/clcm.htm
for info about ]
      [ comp.lang.c++.moderated.    First time posters: Do this! ]
 




 18 Posts in Topic:
Macro To Generate Inline Assembly
Le Chaud Lapin <jaibud  2008-04-27 07:29:36 
Re: Macro To Generate Inline Assembly
=?ISO-8859-1?Q?Daniel_Kr=  2008-04-27 12:39:09 
Re: Macro To Generate Inline Assembly
Le Chaud Lapin <jaibud  2008-04-27 12:39:05 
Re: Macro To Generate Inline Assembly
Tony Delroy <tony_in_d  2008-04-28 02:13:23 
Re: Macro To Generate Inline Assembly
Le Chaud Lapin <jaibud  2008-04-28 16:06:49 
Re: Macro To Generate Inline Assembly
Mathias Gaunard <loufo  2008-04-28 20:34:54 
Re: Macro To Generate Inline Assembly
Le Chaud Lapin <jaibud  2008-04-28 23:23:12 
Re: Macro To Generate Inline Assembly
=?ISO-8859-1?Q?Daniel_Kr=  2008-04-29 10:35:49 
Re: Macro To Generate Inline Assembly
Francis Glassborow <fr  2008-04-29 10:43:23 
Re: Macro To Generate Inline Assembly
Le Chaud Lapin <jaibud  2008-04-29 17:38:48 
Re: Macro To Generate Inline Assembly
Le Chaud Lapin <jaibud  2008-04-29 17:42:22 
Re: Macro To Generate Inline Assembly
galathaea <galathaea@[  2008-04-29 18:29:42 
Re: Macro To Generate Inline Assembly
Carl Barron <cbarron41  2008-04-30 04:13:23 
Re: Macro To Generate Inline Assembly
Mathias Gaunard <loufo  2008-04-30 04:13:22 
Re: Macro To Generate Inline Assembly
Le Chaud Lapin <jaibud  2008-04-30 10:42:39 
Re: Macro To Generate Inline Assembly
John Nagle <nagle@[EMA  2008-05-03 06:13:27 
Re: Macro To Generate Inline Assembly
Le Chaud Lapin <jaibud  2008-05-03 16:10:43 
Re: Macro To Generate Inline Assembly
Le Chaud Lapin <jaibud  2008-05-03 16:13:24 

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tan12V112 Sat Jul 19 20:00:27 CDT 2008.