Re: [cc65] optimizer?

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From: Andre Majorel (amajorel_at_teaser.fr)
Date: 2001-06-25 12:58:34 

On 2001-06-25 08:34 +0200, Ullrich von Bassewitz wrote:

> On Mon, Jun 25, 2001 at 12:20:54AM +0200, Andre Majorel wrote:
> > Just a side note: one of the improvements in GCC 3.0 was, they
> > say, to move the inlining stage before the optimization stage to
> > make it possible to optimize across inlined function calls.
> 
> It is correct to do so. On the other side, the linker is able to see more of
> the final program than the optimizer when run over one module. So the linker
> would be able to inline things, that the compiler cannot inline, because it
> does not see the code for the inlined function.

I believe they're talking about inlining of user-defined
functions.  Those functions cannot be inlined by the linker.
They're defined in a .h, not a .c.

GCC also has built-ins for certain common functions like
memset() and memcpy(). In this case as well, I believe the
inlining is done in the compiler, not in the linker.

-- 
André Majorel
Work: <amajorel_at_arkeia.com>
Home: <amajorel_at_teaser.fr> http://www.teaser.fr/~amajorel/
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