From 3277b69d734b9c90b44ebde4ede005717e2c3b2e Mon Sep 17 00:00:00 2001
From: ed <ed@FreeBSD.org>
Date: Tue, 2 Jun 2009 17:52:33 +0000
Subject: Import LLVM, at r72732.

---
 lib/CodeGen/MachineDominators.cpp | 53 +++++++++++++++++++++++++++++++++++++++
 1 file changed, 53 insertions(+)
 create mode 100644 lib/CodeGen/MachineDominators.cpp

(limited to 'lib/CodeGen/MachineDominators.cpp')

diff --git a/lib/CodeGen/MachineDominators.cpp b/lib/CodeGen/MachineDominators.cpp
new file mode 100644
index 0000000..37c8601
--- /dev/null
+++ b/lib/CodeGen/MachineDominators.cpp
@@ -0,0 +1,53 @@
+//===- MachineDominators.cpp - Machine Dominator Calculation --------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
+// This file implements simple dominator construction algorithms for finding
+// forward dominators on machine functions.
+//
+//===----------------------------------------------------------------------===//
+
+#include "llvm/CodeGen/MachineDominators.h"
+#include "llvm/CodeGen/Passes.h"
+
+using namespace llvm;
+
+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();
+}
-- 
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