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Author SHA1 Message Date
Jakob Stoklund Olesen 4c278f82c8 Use IntEqClasses to compute connected components of live intervals. 
llvm-svn: 122296
 2010-12-21 00:48:17 +00:00
Jakob Stoklund Olesen baee655c5e Add ADT/IntEqClasses.h as a light-weight implementation of EquivalenceClasses.h. 
This implementation already exists as ConnectedVNInfoEqClasses in
LiveInterval.cpp, and it seems to be generally useful to have a light-weight way
of forming equivalence classes of small integers.

IntEqClasses doesn't allow enumeration of the elements in a class.

llvm-svn: 122293
 2010-12-21 00:04:46 +00:00