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Author SHA1 Message Date
John McCall 10c91bfa66 Cache the result of errs() and implement formatted logging. 
llvm-svn: 109740
 2010-07-29 08:14:41 +00:00
John McCall 5e6a16d71f Add the llvm-diff tool, which performs a relatively naive structural 
diff of a function.  There's a lot of cruft in the current version, and
it's pretty far from perfect, but it's usable.

Currently only capable of comparing functions.  Currently ignores metadata.
Currently ignores most attributes of functions and instructions.

Patches welcome.

llvm-svn: 109739
 2010-07-29 07:53:27 +00:00