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Add a Number field w/ accessor method, for function-level unique numbering
of MBBs. Add non-const MachineBasicBlock::getParent() accessor method. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13512 91177308-0d34-0410-b5e6-96231b3b80d8
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@ -63,9 +63,11 @@ public:
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const BasicBlock *BB;
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std::vector<MachineBasicBlock *> Predecessors;
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std::vector<MachineBasicBlock *> Successors;
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int Number;
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public:
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MachineBasicBlock(const BasicBlock *bb = 0) : Prev(0), Next(0), BB(bb) {
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MachineBasicBlock(const BasicBlock *bb = 0) : Prev(0), Next(0), BB(bb),
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Number(-1) {
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Insts.parent = this;
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}
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~MachineBasicBlock() {}
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@ -78,6 +80,7 @@ public:
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/// getParent - Return the MachineFunction containing this basic block.
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///
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const MachineFunction *getParent() const;
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MachineFunction *getParent();
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typedef ilist<MachineInstr>::iterator iterator;
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typedef ilist<MachineInstr>::const_iterator const_iterator;
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@ -158,6 +161,10 @@ public:
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void dump() const;
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void print(std::ostream &OS) const;
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// MachineBasicBlocks are uniquely numbered at the function level
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// (unless they're not in a MachineFunction yet)
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int getNumber() const { return Number; }
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private: // Methods used to maintain doubly linked list of blocks...
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friend class ilist_traits<MachineBasicBlock>;
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