Re: [pdp11] Emit prologue as rtl

[Paul Koning <paul_koning at dell dot com>]

On Jul 8, 2011, at 6:13 PM, Richard Henderson wrote:

> This appears to do the right thing.  I didn't bother with
> markers for unwind info, since pdp11 is limited to a.out
> and thus will never use dwarf2.
> 
> There are improvements that could be made.  I added some
> comments to that effect but did not otherwise change the
> code generation.
> 
> Note that the existence of the epilogue and return patterns
> will by themselves cause changes.  In particular, basic block
> re-ordering will likely move the epilogue into the middle of
> the function, placing unlikely code paths later; something
> that was not possible with a text-based epilogue.

Thanks, that looks good.

	paul