diff options
| -rw-r--r-- | include/llvm/CodeGen/LiveInterval.h | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/include/llvm/CodeGen/LiveInterval.h b/include/llvm/CodeGen/LiveInterval.h index fb74486357..1e8202e5f4 100644 --- a/include/llvm/CodeGen/LiveInterval.h +++ b/include/llvm/CodeGen/LiveInterval.h @@ -271,6 +271,17 @@ namespace llvm { I = std::lower_bound(kills.begin(), kills.end(), KillIdx); return I != kills.end() && *I == KillIdx; } + + /// isOnlyLROfValNo - Return true if the specified live range is the only + /// one defined by the its val#. + bool isOnlyLROfValNo( const LiveRange *LR) { + for (const_iterator I = begin(), E = end(); I != E; ++I) { + const LiveRange *Tmp = I; + if (Tmp != LR && Tmp->valno == LR->valno) + return false; + } + return true; + } /// MergeValueNumberInto - This method is called when two value nubmers /// are found to be equivalent. This eliminates V1, replacing all |