diff options
Diffstat (limited to 'include/llvm/CodeGen/MachineBasicBlock.h')
| -rw-r--r-- | include/llvm/CodeGen/MachineBasicBlock.h | 33 |
1 files changed, 21 insertions, 12 deletions
diff --git a/include/llvm/CodeGen/MachineBasicBlock.h b/include/llvm/CodeGen/MachineBasicBlock.h index 219f7c4108..90a779b147 100644 --- a/include/llvm/CodeGen/MachineBasicBlock.h +++ b/include/llvm/CodeGen/MachineBasicBlock.h @@ -112,18 +112,18 @@ public: typedef std::vector<MachineBasicBlock *>::iterator succ_iterator; typedef std::vector<MachineBasicBlock *>::const_iterator const_succ_iterator; - pred_iterator pred_begin() { return Predecessors.begin (); } - const_pred_iterator pred_begin() const { return Predecessors.begin (); } - pred_iterator pred_end() { return Predecessors.end (); } - const_pred_iterator pred_end() const { return Predecessors.end (); } - unsigned pred_size() const { return Predecessors.size (); } - bool pred_empty() const { return Predecessors.empty(); } - succ_iterator succ_begin() { return Successors.begin (); } - const_succ_iterator succ_begin() const { return Successors.begin (); } - succ_iterator succ_end() { return Successors.end (); } - const_succ_iterator succ_end() const { return Successors.end (); } - unsigned succ_size() const { return Successors.size (); } - bool succ_empty() const { return Successors.empty(); } + pred_iterator pred_begin() { return Predecessors.begin(); } + const_pred_iterator pred_begin() const { return Predecessors.begin(); } + pred_iterator pred_end() { return Predecessors.end(); } + const_pred_iterator pred_end() const { return Predecessors.end(); } + unsigned pred_size() const { return Predecessors.size(); } + bool pred_empty() const { return Predecessors.empty(); } + succ_iterator succ_begin() { return Successors.begin(); } + const_succ_iterator succ_begin() const { return Successors.begin(); } + succ_iterator succ_end() { return Successors.end(); } + const_succ_iterator succ_end() const { return Successors.end(); } + unsigned succ_size() const { return Successors.size(); } + bool succ_empty() const { return Successors.empty(); } // Machine-CFG mutators @@ -142,6 +142,15 @@ public: /// updated. /// void removeSuccessor(succ_iterator I); + + /// isSuccessor - Return true if the specified MBB is a successor of this + /// block. + bool isSuccessor(MachineBasicBlock *MBB) const { + for (const_succ_iterator I = succ_begin(), E = succ_end(); I != E; ++I) + if (*I == MBB) + return true; + return false; + } /// getFirstTerminator - returns an iterator to the first terminator /// instruction of this basic block. If a terminator does not exist, |