[LLVMdev] Saving registers used by function

[Vladimir Prus]

Alkis Evlogimenos wrote:
> On Wed, 2004-06-09 at 04:56, Vladimir Prus wrote:
> > Hello!
> > Is there an (semi)automatic way to save registers used by a function? For
> > example, on my target I have to store ar0-ar4 and gr0-gr4, gr5, gr6. For
> > now I just emit huge prologue code to push them all to stack -- even if
> > they are not modified at all.
> >
> > Is there a way to tell LLVM which registers must be stored, and have it
> > automatically issue pushes/pops? I can live with current design, just
> > wondering.
>
> I assume you are talking about caller saved registers. 

Actually, about callee saved registers. The naive compiler pushes/pop all 
registers which are used in a function and must be preserved.

- Volodya