If MI is deleted then remove it from the set. If a new MI is created, it could

[oota-llvm.git] / lib / CodeGen / MachineDominators.cpp

diff --git a/lib/CodeGen/MachineDominators.cpp b/lib/CodeGen/MachineDominators.cpp
index 7c521ccb0e86bcfd71920cee2ec106053c427168..04c8ecbf9bdc1e1e236faef8c456d50a1517fa9e 100644 (file)
--- a/lib/CodeGen/MachineDominators.cpp
+++ b/lib/CodeGen/MachineDominators.cpp
@@ -17,13 +17,43 @@
 
 using namespace llvm;
 
+namespace llvm {
 TEMPLATE_INSTANTIATION(class DomTreeNodeBase<MachineBasicBlock>);
 TEMPLATE_INSTANTIATION(class DominatorTreeBase<MachineBasicBlock>);
+}
+
+char MachineDominatorTree::ID = 0;
+
+INITIALIZE_PASS(MachineDominatorTree, "machinedomtree",
+                "MachineDominator Tree Construction", true, true)
+
+char &llvm::MachineDominatorsID = MachineDominatorTree::ID;
+
+void MachineDominatorTree::getAnalysisUsage(AnalysisUsage &AU) const {
+  AU.setPreservesAll();
+  MachineFunctionPass::getAnalysisUsage(AU);
+}
+
+bool MachineDominatorTree::runOnMachineFunction(MachineFunction &F) {
+  DT->recalculate(F);
 
-namespace {
-  char MachineDominatorTree::ID = 0;
-  RegisterPass<MachineDominatorTree>
-  E("machinedomtree", "MachineDominator Tree Construction", true);
+  return false;
 }
 
-const PassInfo *llvm::MachineDominatorsID = E.getPassInfo();
+MachineDominatorTree::MachineDominatorTree()
+    : MachineFunctionPass(ID) {
+  initializeMachineDominatorTreePass(*PassRegistry::getPassRegistry());
+  DT = new DominatorTreeBase<MachineBasicBlock>(false);
+}
+
+MachineDominatorTree::~MachineDominatorTree() {
+  delete DT;
+}
+
+void MachineDominatorTree::releaseMemory() {
+  DT->releaseMemory();
+}
+
+void MachineDominatorTree::print(raw_ostream &OS, const Module*) const {
+  DT->print(OS);
+}