Re: ARM EABI port: minimum CPU choice
On Tue, 2006-06-13 at 10:41 +0100, Phil Blundell wrote:
> On Mon, 2006-06-12 at 23:54 +0200, Martin Guy wrote:
> > Is there any reason not to make ldm the default for armv4 and above,
> > since it seems to win most, among the various options?
>
> Two reasons: because it requires the return address to be on the stack
> (which often requires adding another instruction to get it there)
But isn't LR saved anyway in functions that call other functions? Though
I'm not sure what the average percentage of the leaf functions out of
the total number of functions is.
--
Catalin
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