1 files changed, 0 insertions, 88 deletions
diff --git a/include/llvm/CodeGen/LiveRegUnits.h b/include/llvm/CodeGen/LiveRegUnits.h
deleted file mode 100644
index 02b9c55..0000000
--- a/include/llvm/CodeGen/LiveRegUnits.h
+++ /dev/null
@@ -1,88 +0,0 @@
-//===-- llvm/CodeGen/LiveRegUnits.h - Live register unit set ----*- C++ -*-===//
-//
-//                     The LLVM Compiler Infrastructure
-//
-// This file is distributed under the University of Illinois Open Source
-// License. See LICENSE.TXT for details.
-//
-//===----------------------------------------------------------------------===//
-//
-// This file implements a Set of live register units. This can be used for ad
-// hoc liveness tracking after register allocation. You can start with the
-// live-ins/live-outs at the beginning/end of a block and update the information
-// while walking the instructions inside the block.
-//
-//===----------------------------------------------------------------------===//
-
-#ifndef LLVM_CODEGEN_LIVEREGUNITS_H
-#define LLVM_CODEGEN_LIVEREGUNITS_H
-
-#include "llvm/ADT/SparseSet.h"
-#include "llvm/CodeGen/MachineBasicBlock.h"
-#include "llvm/Target/TargetRegisterInfo.h"
-#include <cassert>
-
-namespace llvm {
-
-class MachineInstr;
-
-/// A set of live register units with functions to track liveness when walking
-/// backward/forward through a basic block.
-class LiveRegUnits {
-  SparseSet<unsigned> LiveUnits;
-
-  LiveRegUnits(const LiveRegUnits&) LLVM_DELETED_FUNCTION;
-  LiveRegUnits &operator=(const LiveRegUnits&) LLVM_DELETED_FUNCTION;
-public:
-  /// \brief Constructs a new empty LiveRegUnits set.
-  LiveRegUnits() {}
-
-  void init(const TargetRegisterInfo *TRI) {
-    LiveUnits.clear();
-    LiveUnits.setUniverse(TRI->getNumRegs());
-  }
-
-  void clear() { LiveUnits.clear(); }
-
-  bool empty() const { return LiveUnits.empty(); }
-
-  /// \brief Adds a register to the set.
-  void addReg(unsigned Reg, const MCRegisterInfo &MCRI) {
-    for (MCRegUnitIterator RUnits(Reg, &MCRI); RUnits.isValid(); ++RUnits)
-      LiveUnits.insert(*RUnits);
-  }
-
-  /// \brief Removes a register from the set.
-  void removeReg(unsigned Reg, const MCRegisterInfo &MCRI) {
-    for (MCRegUnitIterator RUnits(Reg, &MCRI); RUnits.isValid(); ++RUnits)
-      LiveUnits.erase(*RUnits);
-  }
-
-  /// \brief Removes registers clobbered by the regmask operand @p Op.
-  void removeRegsInMask(const MachineOperand &Op, const MCRegisterInfo &MCRI);
-
-  /// \brief Returns true if register @p Reg (or one of its super register) is
-  /// contained in the set.
-  bool contains(unsigned Reg, const MCRegisterInfo &MCRI) const {
-    for (MCRegUnitIterator RUnits(Reg, &MCRI); RUnits.isValid(); ++RUnits) {
-      if (LiveUnits.count(*RUnits))
-        return true;
-    }
-    return false;
-  }
-
-  /// \brief Simulates liveness when stepping backwards over an
-  /// instruction(bundle): Remove Defs, add uses.
-  void stepBackward(const MachineInstr &MI, const MCRegisterInfo &MCRI);
-
-  /// \brief Simulates liveness when stepping forward over an
-  /// instruction(bundle): Remove killed-uses, add defs.
-  void stepForward(const MachineInstr &MI, const MCRegisterInfo &MCRI);
-
-  /// \brief Adds all registers in the live-in list of block @p BB.
-  void addLiveIns(const MachineBasicBlock *MBB, const MCRegisterInfo &MCRI);
-};
-
-} // namespace llvm
-
-#endif