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New, wonderful isSuccessor method

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31103 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner 2006-10-21 06:50:05 +00:00
parent 4bc135e93b
commit cd5bad3711
1 changed files with 21 additions and 12 deletions
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33
include/llvm/CodeGen/MachineBasicBlock.h
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@ -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,