Cleanup code to use iterators instead of ".size()".

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

diff --git a/lib/CodeGen/MachineDominators.cpp b/lib/CodeGen/MachineDominators.cpp
index e343240ea2741570a276b88bfebbf41068f4e15a..37c86019d4a22182a629d34c7144b748dbe64361 100644 (file)
--- a/lib/CodeGen/MachineDominators.cpp
+++ b/lib/CodeGen/MachineDominators.cpp
@@ -13,6 +13,7 @@
 //===----------------------------------------------------------------------===//
 
 #include "llvm/CodeGen/MachineDominators.h"
+#include "llvm/CodeGen/Passes.h"
 
 using namespace llvm;
 
@@ -20,5 +21,33 @@ TEMPLATE_INSTANTIATION(class DomTreeNodeBase<MachineBasicBlock>);
 TEMPLATE_INSTANTIATION(class DominatorTreeBase<MachineBasicBlock>);
 
 char MachineDominatorTree::ID = 0;
+
 static RegisterPass<MachineDominatorTree>
 E("machinedomtree", "MachineDominator Tree Construction", true);
+
+const PassInfo *const llvm::MachineDominatorsID = &E;
+
+void MachineDominatorTree::getAnalysisUsage(AnalysisUsage &AU) const {
+  AU.setPreservesAll();
+  MachineFunctionPass::getAnalysisUsage(AU);
+}
+
+bool MachineDominatorTree::runOnMachineFunction(MachineFunction &F) {
+  DT->recalculate(F);
+
+  return false;
+}
+
+MachineDominatorTree::MachineDominatorTree()
+    : MachineFunctionPass(&ID) {
+  DT = new DominatorTreeBase<MachineBasicBlock>(false);
+}
+
+MachineDominatorTree::~MachineDominatorTree() {
+  DT->releaseMemory();
+  delete DT;
+}
+
+void MachineDominatorTree::releaseMemory() {
+  DT->releaseMemory();
+}