#define DEBUG_TYPE "postdomtree"
#include "llvm/Analysis/PostDominators.h"
-#include "llvm/Instructions.h"
-#include "llvm/Support/CFG.h"
-#include "llvm/Support/Debug.h"
#include "llvm/ADT/DepthFirstIterator.h"
#include "llvm/ADT/SetOperations.h"
-#include "llvm/Analysis/DominatorInternals.h"
+#include "llvm/IR/CFG.h"
+#include "llvm/IR/Instructions.h"
+#include "llvm/Support/Debug.h"
+#include "llvm/Support/GenericDomTreeConstruction.h"
using namespace llvm;
//===----------------------------------------------------------------------===//
//===----------------------------------------------------------------------===//
char PostDominatorTree::ID = 0;
-char PostDominanceFrontier::ID = 0;
-static RegisterPass<PostDominatorTree>
-F("postdomtree", "Post-Dominator Tree Construction", true, true);
+INITIALIZE_PASS(PostDominatorTree, "postdomtree",
+ "Post-Dominator Tree Construction", true, true)
bool PostDominatorTree::runOnFunction(Function &F) {
DT->recalculate(F);
return new PostDominatorTree();
}
-//===----------------------------------------------------------------------===//
-// PostDominanceFrontier Implementation
-//===----------------------------------------------------------------------===//
-
-static RegisterPass<PostDominanceFrontier>
-H("postdomfrontier", "Post-Dominance Frontier Construction", true, true);
-
-const DominanceFrontier::DomSetType &
-PostDominanceFrontier::calculate(const PostDominatorTree &DT,
- const DomTreeNode *Node) {
- // Loop over CFG successors to calculate DFlocal[Node]
- BasicBlock *BB = Node->getBlock();
- DomSetType &S = Frontiers[BB]; // The new set to fill in...
- if (getRoots().empty()) return S;
-
- if (BB)
- for (pred_iterator SI = pred_begin(BB), SE = pred_end(BB);
- SI != SE; ++SI) {
- BasicBlock *P = *SI;
- // Does Node immediately dominate this predecessor?
- DomTreeNode *SINode = DT[P];
- if (SINode && SINode->getIDom() != Node)
- S.insert(P);
- }
-
- // At this point, S is DFlocal. Now we union in DFup's of our children...
- // Loop through and visit the nodes that Node immediately dominates (Node's
- // children in the IDomTree)
- //
- for (DomTreeNode::const_iterator
- NI = Node->begin(), NE = Node->end(); NI != NE; ++NI) {
- DomTreeNode *IDominee = *NI;
- const DomSetType &ChildDF = calculate(DT, IDominee);
-
- DomSetType::const_iterator CDFI = ChildDF.begin(), CDFE = ChildDF.end();
- for (; CDFI != CDFE; ++CDFI) {
- if (!DT.properlyDominates(Node, DT[*CDFI]))
- S.insert(*CDFI);
- }
- }
-
- return S;
-}
-
-FunctionPass* llvm::createPostDomFrontier() {
- return new PostDominanceFrontier();
-}