diff options
Diffstat (limited to 'llvm/lib/CodeGen/ExecutionDepsFix.cpp')
| -rw-r--r-- | llvm/lib/CodeGen/ExecutionDepsFix.cpp | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/llvm/lib/CodeGen/ExecutionDepsFix.cpp b/llvm/lib/CodeGen/ExecutionDepsFix.cpp index 70945832942..12ea9e3844b 100644 --- a/llvm/lib/CodeGen/ExecutionDepsFix.cpp +++ b/llvm/lib/CodeGen/ExecutionDepsFix.cpp @@ -558,7 +558,9 @@ void ExeDepsFix::processUndefReads(MachineBasicBlock *MBB) { // Collect this block's live out register units. LiveRegSet.init(TRI); - LiveRegSet.addLiveOuts(MBB); + // We do not need to care about pristine registers as they are just preserved + // but not actually used in the function. + LiveRegSet.addLiveOutsNoPristines(MBB); MachineInstr *UndefMI = UndefReads.back().first; unsigned OpIdx = UndefReads.back().second; |
