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Re: CFG branch merge 5 - remove PROP_ALLOW_CFG_CHANGES

On Thu, Feb 28, 2002 at 09:31:14PM +0100, Jan Hubicka wrote:
> Would this be OK if I mplement the loop at cfg_cleanup time?

I don't thinnk I know quite what you're suggesting.
Show me the patch.

> I just felt that the optimization is bit expensive given the benefit
> it brings. What kind of problems it brought to pa except the pesimized
> code?

My memory is apparently faulty.  I thought it was submitted
to address some problem other than performance, but no.

  http://gcc.gnu.org/ml/gcc-patches/2001-07/msg01832.html

Although I do seem to recall problems in, e.g. if_convert
dealing with empty basic blocks, I can't find anything 
more specific.


r~
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