llvm-6502/lib/CodeGen/RegAlloc/IGNode.cpp
2001-11-03 22:01:09 +00:00

38 lines
912 B
C++

#include "llvm/CodeGen/IGNode.h"
IGNode::IGNode(LiveRange *const PLR, unsigned int Ind): Index(Ind),
AdjList(),
ParentLR(PLR)
{
OnStack = false;
CurDegree = -1 ;
ParentLR->setUserIGNode( this );
}
void IGNode::pushOnStack() // sets on to stack and
{ // reduce the degree of neighbors
OnStack = true;
int neighs = AdjList.size();
if( neighs < 0) {
cout << "\nAdj List size = " << neighs;
assert(0 && "Invalid adj list size");
}
for(int i=0; i < neighs; i++) (AdjList[i])->decCurDegree();
}
void IGNode::delAdjIGNode(const IGNode *const Node) {
vector <IGNode *>::iterator It = AdjList.begin();
// find Node
for( ; It != AdjList.end() && (*It != Node); It++ ) ;
assert( It != AdjList.end() ); // the node must be there
AdjList.erase( It );
}