| commit | 014fc128e6c684f90db90a1e3af34f70ee0c951b | [log] [tgz] |
|---|---|---|
| author | Matthias Braun <matze@braunis.de> | Tue May 10 20:11:58 2016 +0000 |
| committer | Matthias Braun <matze@braunis.de> | Tue May 10 20:11:58 2016 +0000 |
| tree | 8b76f6082f717d179e498ada32b6760981b00ad3 | |
| parent | db21c5a5514660c83c26bac4176bcb7601782e19 [diff] |
ScheduleDAGInstrs: Comment on why subreg defs are not seen as uses; NFC Usually subregister definitions are consider uses of the remaining lanes that did not get defined. Add a comment why the code in ScheduleDAGInstrs does not add use dependencies regardless. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@269107 91177308-0d34-0410-b5e6-96231b3b80d8