Hi, On Thu, 5 Jul 2007, Richard Guenther wrote:
> > How should this be optimized within the context of your canonicalization? > > For example by making fold_plusminus_mult_expr do what its comment > suggest, "No identical multiplicands; see if we can find a common > power-of-two factor ..." > > Can you try the following and see if it helps m68k? The problem isn't specific to m68k, it's a problem for i386 and probably others as well. The patch is unfortunately no improvement, the problem is the canonical form for addresses is (p * c) + o, which directly conflicts with yours. bye, Roman
