tree 9fad5f1ee1e29ff3ce9975da7607c9a919d26188
parent 8e2ce7fdf9e8033b77788662a9c3f61334eb5daf
author Eric Christopher <echristo@apple.com> 1308614720 +0000
committer Eric Christopher <echristo@apple.com> 1308614720 +0000

Move additional register names to their own lookup, separate from
register aliases. Fixes unnecessary renames of clobbers.

Fixes part of rdar://9425559


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@133485 91177308-0d34-0410-b5e6-96231b3b80d8