Delete dead code.

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

diff --git a/lib/CodeGen/MachineLoopInfo.cpp b/lib/CodeGen/MachineLoopInfo.cpp
index b7298e48eefc87bf63d8ec5989a7260087a883c7..4e2cfdc4e5689a9bba4069a1c53125fe13c22035 100644 (file)
--- a/lib/CodeGen/MachineLoopInfo.cpp
+++ b/lib/CodeGen/MachineLoopInfo.cpp
@@ -15,10 +15,9 @@
 //===----------------------------------------------------------------------===//
 
 #include "llvm/CodeGen/MachineLoopInfo.h"
+#include "llvm/Analysis/LoopInfoImpl.h"
 #include "llvm/CodeGen/MachineDominators.h"
 #include "llvm/CodeGen/Passes.h"
-#include "llvm/Analysis/LoopInfoImpl.h"
-#include "llvm/Support/CommandLine.h"
 #include "llvm/Support/Debug.h"
 using namespace llvm;
 
@@ -26,10 +25,6 @@ using namespace llvm;
 template class llvm::LoopBase<MachineBasicBlock, MachineLoop>;
 template class llvm::LoopInfoBase<MachineBasicBlock, MachineLoop>;
 
-static cl::opt<bool>
-StableLoopInfo("stable-machine-loops", cl::Hidden, cl::init(false),
-               cl::desc("Compute a stable loop tree."));
-
 char MachineLoopInfo::ID = 0;
 INITIALIZE_PASS_BEGIN(MachineLoopInfo, "machine-loops",
                 "Machine Natural Loop Construction", true, true)
@@ -41,10 +36,7 @@ char &llvm::MachineLoopInfoID = MachineLoopInfo::ID;
 
 bool MachineLoopInfo::runOnMachineFunction(MachineFunction &) {
   releaseMemory();
-  if (StableLoopInfo)
-    LI.Analyze(getAnalysis<MachineDominatorTree>().getBase());
-  else
-    LI.Calculate(getAnalysis<MachineDominatorTree>().getBase());    // Update
+  LI.Analyze(getAnalysis<MachineDominatorTree>().getBase());
   return false;
 }
 
@@ -82,6 +74,8 @@ MachineBasicBlock *MachineLoop::getBottomBlock() {
   return BotMBB;
 }
 
+#if !defined(NDEBUG) || defined(LLVM_ENABLE_DUMP)
 void MachineLoop::dump() const {
   print(dbgs());
 }
+#endif