| author | Matthias Braun <matze@braunis.de> | |
| Wed, 21 Jan 2015 22:55:13 +0000 (22:55 +0000) | ||
| committer | Matthias Braun <matze@braunis.de> | |
| Wed, 21 Jan 2015 22:55:13 +0000 (22:55 +0000) | ||
| commit | 9a43e3d47f70bd90ef08f0abbafa1335dfbf80ce | |
| tree | d1d8a1534994286721d2f7727cd8cdc5a6466424 | tree | snapshot (tar.xz tar.gz zip) |
| parent | f04568139a38541215f52752732fa673be9fb4a4 | commit | diff |
LiveIntervalAnalysis: Mark subregister defs as undef when we determined they are only reading a dead superregister value
This was not necessary before as this case can only be detected when the
liveness analysis is at subregister level.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@226733 91177308-0d34-0410-b5e6-96231b3b80d8
This was not necessary before as this case can only be detected when the
liveness analysis is at subregister level.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@226733 91177308-0d34-0410-b5e6-96231b3b80d8
| include/llvm/CodeGen/MachineInstr.h | diff | blob | history | |
| lib/CodeGen/LiveIntervalAnalysis.cpp | diff | blob | history | |
| lib/CodeGen/MachineInstr.cpp | diff | blob | history |