Fix LSR to keep the RegUseTracker up to date when combining users. This doesn't usually matter, because the other heuristics usually succeed regardless, but it's good to keep the register use bookkeeping consistent.
Fix LSR to keep the RegUseTracker up to date when combining users.
This doesn't usually matter, because the other heuristics usually
succeed regardless, but it's good to keep the register use
bookkeeping consistent.


git-svn-id: 0ff597fd157e6f4fc38580e8d64ab130330d2411@116005 91177308-0d34-0410-b5e6-96231b3b80d8

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