On Fri, Aug 17, 2018 at 01:39:51PM -0400, Jeff King wrote: > > I wonder if there is a way to "relax" a pattern where these semantically > > equivalent cases can all be covered automatically. I don't know enough > > about the tool to say. > > Hmm. They seem to call these "standard isomorphisms": > > http://coccinelle.lip6.fr/standard.iso.html > > but I'm not sure of the correct way to use them (e.g., if we want to > apply them for matching but not actually transform the code, though I am > not actually opposed to transforming the code, too). Hmph, I should really pause before hitting 'send'. Last message, I promise. :) I do not see an option to include a list an arbitrary set of isomorphisms, but the standard.iso list should be used by default. I wonder if you simply need to write your case in the normalized version they use there (which I think is "X == NULL"), and the others would be taken care of. -Peff
