Andrew Trick 7b521ad6ee Fix TableGen's RegPressureSet weight normalization to handle subreg DAGS.
I initially assumed that the subreg graph was a tree. That may not be true.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@156524 91177308-0d34-0410-b5e6-96231b3b80d8
2012-05-10 00:32:15 +00:00
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2012-04-03 23:09:22 +00:00
2012-04-17 17:21:17 +00:00