| commit | bc7742294bef27e15920e2b0179265df7bd9dd8e | [log] [tgz] |
|---|---|---|
| author | Matthias Braun <matze@braunis.de> | Mon Apr 04 21:23:46 2016 +0000 |
| committer | Matthias Braun <matze@braunis.de> | Mon Apr 04 21:23:46 2016 +0000 |
| tree | 323e7b88616bf9d4e12149fd8c78aa10f75df1b0 | |
| parent | 7b7e7134b088d23677a6e53005f3c2ebe5a08fd1 [diff] |
MachineScheduler: Ignore COPYs with undef/dead op in CopyConstrain mutation. There is no problem with the code today, but the fix will avoid a crash in test/CodeGen/AMDGPU/subreg-coalescer-undef-use.ll once the DetectDeadLanes pass is added. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@265351 91177308-0d34-0410-b5e6-96231b3b80d8