On Fri, Oct 28, 2005 at 08:44:02AM -0700, David Daney wrote: > I am hacking up an optimization pass that re-writes some calls to > libgcj. Since this pass is only useful if the source is generating > calls to functions in libgcj, I only want to enable it if this is likely > to be the case. > > Q: Is there some predicate that can be used in the gate of a tree > optimizer to disable the pass if not being called via the java front-end?
I can't answer that question, but I wonder if this kind of rewrite pass wouldn't be useful for other languages. For example, calls to libstdc++ could be rewritten. There might be a general tree-rewriting pass where the patterns to be matched are language-specific, but the algorithm to do the pass is language-independent.
