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Add non-const MachineBasicBlock::getParent() accessor method.
MBBs start out as #-1. When a MBB is added to a MachineFunction, it gets the next available unique MBB number. If it is removed from a MachineFunction, it goes back to being #-1. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13514 91177308-0d34-0410-b5e6-96231b3b80d8
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@ -26,6 +26,25 @@ const MachineFunction *MachineBasicBlock::getParent() const {
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return &MachineFunction::get(getBasicBlock()->getParent());
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}
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MachineFunction *MachineBasicBlock::getParent() {
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// Get the parent by getting the Function parent of the basic block, and
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// getting the MachineFunction from it.
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return &MachineFunction::get(getBasicBlock()->getParent());
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}
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// MBBs start out as #-1. When a MBB is added to a MachineFunction, it
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// gets the next available unique MBB number. If it is removed from a
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// MachineFunction, it goes back to being #-1.
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void ilist_traits<MachineBasicBlock>::addNodeToList (MachineBasicBlock* N)
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{
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N->Number = N->getParent ()->getNextMBBNumber ();
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}
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void ilist_traits<MachineBasicBlock>::removeNodeFromList (MachineBasicBlock* N)
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{
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N->Number = -1;
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}
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MachineInstr* ilist_traits<MachineInstr>::createNode()
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{
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