| commit | b12a77199245a72c24dadbc039ed263d68d8e91a | [log] [tgz] |
|---|---|---|
| author | Andrew Trick <atrick@apple.com> | Fri Jan 25 00:12:57 2013 +0000 |
| committer | Andrew Trick <atrick@apple.com> | Fri Jan 25 00:12:57 2013 +0000 |
| tree | a890a0e3c593860bccedddd5fd1c115d4b1cb684 | |
| parent | 6d28299b9dd3503a61ddffc64fe0201816445ab3 [diff] |
SchedDFS: Refactor and tweak the subtree selection criteria. For sanity, create a root when NumDataSuccs >= 4. Splitting large subtrees will no longer be detrimental after my next checkin to handle nested tree. A magic number of 4 is fine because single subtrees seldom rejoin more than this. It makes subtrees easier to visualize and heuristics more sane. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@173399 91177308-0d34-0410-b5e6-96231b3b80d8