Teach ConnectedVNInfoEqClasses::Classify to deal with unused values.
authorJakob Stoklund Olesen <stoklund@2pi.dk>
Fri, 29 Oct 2010 17:37:29 +0000 (17:37 +0000)
committerJakob Stoklund Olesen <stoklund@2pi.dk>
Fri, 29 Oct 2010 17:37:29 +0000 (17:37 +0000)
commit6d309059a7d6257ddeb3b07e6c4b8b71cce2f707
tree5c2b215b001dc0d8718cfd21d647e6913515f742
parentc94fcb1507db5c043558f3f58d389e774bc2f71d
Teach ConnectedVNInfoEqClasses::Classify to deal with unused values.

We don't want unused values forming their own equivalence classes, so we lump
them all together in one class, and then merge them with the class of the last
used value.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@117670 91177308-0d34-0410-b5e6-96231b3b80d8
lib/CodeGen/LiveInterval.cpp