ICE in delete_output_reload

[Ian Lance Taylor]

Michael Eager <eager@eagercon.com> writes:

> I patched the code to only count the occurrence if the
> locations are different.  Any idea if that has adverse
> consequences?

I would expect that to work.  But before bringing it back to mainline
I'd like to find out why the locations are the same.

> > In case it helps, this is where reg_equiv_alt_mem came in:
> > http://gcc.gnu.org/ml/gcc-patches/2006-07/msg01136.html
> > http://gcc.gnu.org/ml/gcc-patches/2006-08/msg00070.html
> 
> Thanks.  I think I saw one or perhaps both.  I'll look again.
> 
> Has anyone ever done a description of reg allocation or reload?

Just http://gcc.gnu.org/wiki/reload , I think.

Ian