Andrew Trick 7d11bd850f LSR cost metric minor fix and verification.
The minor bug heuristic was noticed by inspection. I added the
isLoser/isValid helpers because they will become more
important with subsequent checkins.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@140580 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-26 23:11:04 +00:00
..
2011-09-20 22:28:17 +00:00