diff options
Diffstat (limited to 'lib/CodeGen/MachineBasicBlock.cpp')
-rw-r--r-- | lib/CodeGen/MachineBasicBlock.cpp | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/lib/CodeGen/MachineBasicBlock.cpp b/lib/CodeGen/MachineBasicBlock.cpp index b9f11e8eb1..eccf389576 100644 --- a/lib/CodeGen/MachineBasicBlock.cpp +++ b/lib/CodeGen/MachineBasicBlock.cpp @@ -26,6 +26,25 @@ const MachineFunction *MachineBasicBlock::getParent() const { return &MachineFunction::get(getBasicBlock()->getParent()); } +MachineFunction *MachineBasicBlock::getParent() { + // Get the parent by getting the Function parent of the basic block, and + // getting the MachineFunction from it. + return &MachineFunction::get(getBasicBlock()->getParent()); +} + +// 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. +void ilist_traits<MachineBasicBlock>::addNodeToList (MachineBasicBlock* N) +{ + N->Number = N->getParent ()->getNextMBBNumber (); +} + +void ilist_traits<MachineBasicBlock>::removeNodeFromList (MachineBasicBlock* N) +{ + N->Number = -1; +} + MachineInstr* ilist_traits<MachineInstr>::createNode() { |