2 Commits

Author	SHA1	Message	Date
Chris Lattner	c7ba69d8b4	Drop references to globals who do exist in the globals graph, but are never ... read or written to. Keep track of how many times this happens. This should be good for deleting things like references to type information in C++ classes llvm-svn: 6946	2003-06-28 22:10:58 +00:00
Chris Lattner	2890f428a9	New pass to perform DSA based optimizations. Initially we just support turning ... globals into constants if we can prove it's safe llvm-svn: 6941	2003-06-28 21:54:55 +00:00