1 files changed, 101 insertions, 0 deletions
diff --git a/contrib/llvm/lib/Target/Alpha/AlphaInstrInfo.h b/contrib/llvm/lib/Target/Alpha/AlphaInstrInfo.h
new file mode 100644
index 0000000..7d7365b
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+++ b/contrib/llvm/lib/Target/Alpha/AlphaInstrInfo.h
@@ -0,0 +1,101 @@
+//===- AlphaInstrInfo.h - Alpha Instruction Information ---------*- C++ -*-===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
+// This file contains the Alpha implementation of the TargetInstrInfo class.
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef ALPHAINSTRUCTIONINFO_H
+#define ALPHAINSTRUCTIONINFO_H
+
+#include "llvm/Target/TargetInstrInfo.h"
+#include "AlphaRegisterInfo.h"
+
+namespace llvm {
+
+class AlphaInstrInfo : public TargetInstrInfoImpl {
+  const AlphaRegisterInfo RI;
+public:
+  AlphaInstrInfo();
+
+  /// getRegisterInfo - TargetInstrInfo is a superset of MRegister info.  As
+  /// such, whenever a client has an instance of instruction info, it should
+  /// always be able to get register info as well (through this method).
+  ///
+  virtual const AlphaRegisterInfo &getRegisterInfo() const { return RI; }
+
+  /// Return true if the instruction is a register to register move and return
+  /// the source and dest operands and their sub-register indices by reference.
+  virtual bool isMoveInstr(const MachineInstr &MI,
+                           unsigned &SrcReg, unsigned &DstReg,
+                           unsigned &SrcSubIdx, unsigned &DstSubIdx) const;
+  
+  virtual unsigned isLoadFromStackSlot(const MachineInstr *MI,
+                                       int &FrameIndex) const;
+  virtual unsigned isStoreToStackSlot(const MachineInstr *MI,
+                                      int &FrameIndex) const;
+  
+  virtual unsigned InsertBranch(MachineBasicBlock &MBB, MachineBasicBlock *TBB,
+                            MachineBasicBlock *FBB,
+                            const SmallVectorImpl<MachineOperand> &Cond) const;
+  virtual bool copyRegToReg(MachineBasicBlock &MBB,
+                            MachineBasicBlock::iterator MI,
+                            unsigned DestReg, unsigned SrcReg,
+                            const TargetRegisterClass *DestRC,
+                            const TargetRegisterClass *SrcRC,
+                            DebugLoc DL) const;
+  virtual void storeRegToStackSlot(MachineBasicBlock &MBB,
+                                   MachineBasicBlock::iterator MBBI,
+                                   unsigned SrcReg, bool isKill, int FrameIndex,
+                                   const TargetRegisterClass *RC,
+                                   const TargetRegisterInfo *TRI) const;
+
+  virtual void loadRegFromStackSlot(MachineBasicBlock &MBB,
+                                    MachineBasicBlock::iterator MBBI,
+                                    unsigned DestReg, int FrameIndex,
+                                    const TargetRegisterClass *RC,
+                                    const TargetRegisterInfo *TRI) const;
+  
+  virtual MachineInstr* foldMemoryOperandImpl(MachineFunction &MF,
+                                              MachineInstr* MI,
+                                           const SmallVectorImpl<unsigned> &Ops,
+                                              int FrameIndex) const;
+
+  virtual MachineInstr* foldMemoryOperandImpl(MachineFunction &MF,
+                                              MachineInstr* MI,
+                                           const SmallVectorImpl<unsigned> &Ops,
+                                              MachineInstr* LoadMI) const {
+    return 0;
+  }
+  
+  bool AnalyzeBranch(MachineBasicBlock &MBB,MachineBasicBlock *&TBB,
+                     MachineBasicBlock *&FBB,
+                     SmallVectorImpl<MachineOperand> &Cond,
+                     bool AllowModify) const;
+  unsigned RemoveBranch(MachineBasicBlock &MBB) const;
+  void insertNoop(MachineBasicBlock &MBB, 
+                  MachineBasicBlock::iterator MI) const;
+  bool ReverseBranchCondition(SmallVectorImpl<MachineOperand> &Cond) const;
+
+  /// getGlobalBaseReg - Return a virtual register initialized with the
+  /// the global base register value. Output instructions required to
+  /// initialize the register in the function entry block, if necessary.
+  ///
+  unsigned getGlobalBaseReg(MachineFunction *MF) const;
+
+  /// getGlobalRetAddr - Return a virtual register initialized with the
+  /// the global return address register value. Output instructions required to
+  /// initialize the register in the function entry block, if necessary.
+  ///
+  unsigned getGlobalRetAddr(MachineFunction *MF) const;
+};
+
+}
+
+#endif