From 4181ea36a9e651aa991560f87106bb1d9c5dc619 Mon Sep 17 00:00:00 2001
From: Matt Arsenault <Matthew.Arsenault@amd.com>
Date: Sat, 12 Jul 2014 21:59:52 +0000
Subject: Templatify DominanceFrontier.

Theoretically this should now work for MachineBasicBlocks.

llvm-svn: 212885
---
 llvm/lib/CodeGen/CMakeLists.txt               |  1 +
 llvm/lib/CodeGen/MachineDominanceFrontier.cpp | 54 +++++++++++++++++++++++++++
 2 files changed, 55 insertions(+)
 create mode 100644 llvm/lib/CodeGen/MachineDominanceFrontier.cpp

(limited to 'llvm/lib/CodeGen')

diff --git a/llvm/lib/CodeGen/CMakeLists.txt b/llvm/lib/CodeGen/CMakeLists.txt
index 57c24e823c1..77f16663f07 100644
--- a/llvm/lib/CodeGen/CMakeLists.txt
+++ b/llvm/lib/CodeGen/CMakeLists.txt
@@ -51,6 +51,7 @@ add_llvm_library(LLVMCodeGen
   MachineCodeEmitter.cpp
   MachineCopyPropagation.cpp
   MachineDominators.cpp
+  MachineDominanceFrontier.cpp
   MachineFunction.cpp
   MachineFunctionAnalysis.cpp
   MachineFunctionPass.cpp
diff --git a/llvm/lib/CodeGen/MachineDominanceFrontier.cpp b/llvm/lib/CodeGen/MachineDominanceFrontier.cpp
new file mode 100644
index 00000000000..0bee84668f0
--- /dev/null
+++ b/llvm/lib/CodeGen/MachineDominanceFrontier.cpp
@@ -0,0 +1,54 @@
+//===- MachineDominanceFrontier.cpp ---------------------------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#include "llvm/CodeGen/MachineDominanceFrontier.h"
+#include "llvm/CodeGen/MachineDominators.h"
+#include "llvm/Analysis/DominanceFrontierImpl.h"
+#include "llvm/CodeGen/Passes.h"
+
+
+using namespace llvm;
+
+namespace llvm {
+template class DominanceFrontierBase<MachineBasicBlock>;
+template class ForwardDominanceFrontierBase<MachineBasicBlock>;
+}
+
+
+char MachineDominanceFrontier::ID = 0;
+
+INITIALIZE_PASS_BEGIN(MachineDominanceFrontier, "machine-domfrontier",
+                "Machine Dominance Frontier Construction", true, true)
+INITIALIZE_PASS_DEPENDENCY(MachineDominatorTree)
+INITIALIZE_PASS_END(MachineDominanceFrontier, "machine-domfrontier",
+                "Machine Dominance Frontier Construction", true, true)
+
+MachineDominanceFrontier::MachineDominanceFrontier()
+  : MachineFunctionPass(ID),
+    Base() {
+  initializeMachineDominanceFrontierPass(*PassRegistry::getPassRegistry());
+}
+
+char &llvm::MachineDominanceFrontierID = MachineDominanceFrontier::ID;
+
+bool MachineDominanceFrontier::runOnMachineFunction(MachineFunction &) {
+  releaseMemory();
+  Base.analyze(getAnalysis<MachineDominatorTree>().getBase());
+  return false;
+}
+
+void MachineDominanceFrontier::releaseMemory() {
+  Base.releaseMemory();
+}
+
+void MachineDominanceFrontier::getAnalysisUsage(AnalysisUsage &AU) const {
+  AU.setPreservesAll();
+  AU.addRequired<MachineDominatorTree>();
+  MachineFunctionPass::getAnalysisUsage(AU);
+}
-- 
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