| commit | 176194d4ee2774bc135ababc5bd6c6c9f606b2a5 | [log] [tgz] |
|---|---|---|
| author | Andrew Trick <atrick@apple.com> | Tue Apr 10 02:25:24 2012 +0000 |
| committer | Andrew Trick <atrick@apple.com> | Tue Apr 10 02:25:24 2012 +0000 |
| tree | fa64274991e2cdb73e4f2af02c678976b84b7f7e | |
| parent | d35ac3c8bc37ab383b10a04b9c8b1087d6b2bc45 [diff] |
Added register unit sets to the target description. This is a new algorithm that finds sets of register units that can be used to model registers pressure. This handles arbitrary, overlapping register classes. Each register class is associated with a (small) list of pressure sets. These are the dimensions of pressure affected by the register class's liveness. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@154374 91177308-0d34-0410-b5e6-96231b3b80d8