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Change MBB autonumber a bit to get the reverse mapping as well as a forward

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mapping


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14521 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner 2004-07-01 06:02:27 +00:00
parent 51289aa520
commit ca48eb9f51
1 changed files with 6 additions and 10 deletions
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16
lib/CodeGen/MachineBasicBlock.cpp
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@ -29,27 +29,23 @@ MachineBasicBlock::~MachineBasicBlock() {
// 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)
{
void ilist_traits<MachineBasicBlock>::addNodeToList(MachineBasicBlock* N) {
assert(N->Parent == 0 && "machine instruction already in a basic block");
N->Parent = Parent;
N->Number = Parent->getNextMBBNumber();
N->Number = Parent->addToMBBNumbering(N);
LeakDetector::removeGarbageObject(N);
}
void ilist_traits<MachineBasicBlock>::removeNodeFromList (MachineBasicBlock* N)
{
void ilist_traits<MachineBasicBlock>::removeNodeFromList(MachineBasicBlock* N) {
assert(N->Parent != 0 && "machine instruction not in a basic block");
N->Parent = 0;
N->Parent->removeFromMBBNumbering(N->Number);
N->Number = -1;
N->Parent = 0;
LeakDetector::addGarbageObject(N);
}
MachineInstr* ilist_traits<MachineInstr>::createNode()
{
MachineInstr* ilist_traits<MachineInstr>::createNode() {
MachineInstr* dummy = new MachineInstr(0, 0);
LeakDetector::removeGarbageObject(dummy);
return dummy;