On Jul 9, 2007, Kenneth Zadeck <[EMAIL PROTECTED]> wrote: > Apparently there areplaces, at least in the ppc backend that did not > generate pseudos before reload because of the abstraction that are > now able to generate them.
I don't understand what you mean by 'because of the abstraction'. It's true that, before your patch, one couldn't create new pseudos after flow analysis, and after your patch, one can create them all the way until reload. 'no_new_pseudos' would still mean the same: it's true if it's too late to create new pseudos, and false otherwise. That's the power of the abstraction: the internal implementation changes, but the exposed interface still offers the same semantics, and things that rely on the abstraction work regardless of the change. Which doesn't mean 'work exactly the same way'. If the change enables them to work even better, they do. If it constraints them further, then they are constrained. But as long as the semantics of the abstraction is unchanged, things work. -- Alexandre Oliva http://www.lsd.ic.unicamp.br/~oliva/ FSF Latin America Board Member http://www.fsfla.org/ Red Hat Compiler Engineer [EMAIL PROTECTED], gcc.gnu.org} Free Software Evangelist [EMAIL PROTECTED], gnu.org}
