diff options
Diffstat (limited to 'include/llvm/Analysis/CFG.h')
| -rw-r--r-- | include/llvm/Analysis/CFG.h | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/include/llvm/Analysis/CFG.h b/include/llvm/Analysis/CFG.h index 08fdc2689d..979926b18b 100644 --- a/include/llvm/Analysis/CFG.h +++ b/include/llvm/Analysis/CFG.h @@ -49,6 +49,9 @@ unsigned GetSuccessorNumber(BasicBlock *BB, BasicBlock *Succ); bool isCriticalEdge(const TerminatorInst *TI, unsigned SuccNum, bool AllowIdenticalEdges = false); +/// \brief Determine whether instruction 'To' is reachable from 'From', +/// returning true if uncertain. +/// /// Determine whether there is a path from From to To within a single function. /// Returns false only if we can prove that once 'From' has been executed then /// 'To' can not be executed. Conservatively returns true. @@ -64,6 +67,15 @@ bool isCriticalEdge(const TerminatorInst *TI, unsigned SuccNum, bool isPotentiallyReachable(const Instruction *From, const Instruction *To, DominatorTree *DT = 0, LoopInfo *LI = 0); +/// \brief Determine whether block 'To' is reachable from 'From', returning +/// true if uncertain. +/// +/// Determine whether there is a path from From to To within a single function. +/// Returns false only if we can prove that once 'From' has been reached then +/// 'To' can not be executed. Conservatively returns true. +bool isPotentiallyReachable(const BasicBlock *From, const BasicBlock *To, + DominatorTree *DT = 0, LoopInfo *LI = 0); + } // End llvm namespace #endif |