1 files changed, 109 insertions, 0 deletions
diff --git a/contrib/llvm/lib/Target/Mips/MipsInstrInfo.h b/contrib/llvm/lib/Target/Mips/MipsInstrInfo.h
new file mode 100644
index 0000000..7d56259
--- /dev/null
+++ b/contrib/llvm/lib/Target/Mips/MipsInstrInfo.h
@@ -0,0 +1,109 @@
+//===-- MipsInstrInfo.h - Mips 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 Mips implementation of the TargetInstrInfo class.
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef MIPSINSTRUCTIONINFO_H
+#define MIPSINSTRUCTIONINFO_H
+
+#include "Mips.h"
+#include "MipsAnalyzeImmediate.h"
+#include "MipsRegisterInfo.h"
+#include "llvm/Support/ErrorHandling.h"
+#include "llvm/Target/TargetInstrInfo.h"
+
+#define GET_INSTRINFO_HEADER
+#include "MipsGenInstrInfo.inc"
+
+namespace llvm {
+
+class MipsInstrInfo : public MipsGenInstrInfo {
+protected:
+  MipsTargetMachine &TM;
+  unsigned UncondBrOpc;
+
+public:
+  explicit MipsInstrInfo(MipsTargetMachine &TM, unsigned UncondBrOpc);
+
+  static const MipsInstrInfo *create(MipsTargetMachine &TM);
+
+  /// Branch Analysis
+  virtual bool AnalyzeBranch(MachineBasicBlock &MBB, MachineBasicBlock *&TBB,
+                             MachineBasicBlock *&FBB,
+                             SmallVectorImpl<MachineOperand> &Cond,
+                             bool AllowModify) const;
+
+  virtual unsigned RemoveBranch(MachineBasicBlock &MBB) const;
+
+  virtual unsigned InsertBranch(MachineBasicBlock &MBB, MachineBasicBlock *TBB,
+                                MachineBasicBlock *FBB,
+                                const SmallVectorImpl<MachineOperand> &Cond,
+                                DebugLoc DL) const;
+
+  virtual
+  bool ReverseBranchCondition(SmallVectorImpl<MachineOperand> &Cond) const;
+
+  virtual MachineInstr* emitFrameIndexDebugValue(MachineFunction &MF,
+                                                 int FrameIx, uint64_t Offset,
+                                                 const MDNode *MDPtr,
+                                                 DebugLoc DL) const;
+
+  /// Insert nop instruction when hazard condition is found
+  virtual void insertNoop(MachineBasicBlock &MBB,
+                          MachineBasicBlock::iterator MI) const;
+
+  /// 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 MipsRegisterInfo &getRegisterInfo() const = 0;
+
+  virtual unsigned GetOppositeBranchOpc(unsigned Opc) const = 0;
+
+  /// Return the number of bytes of code the specified instruction may be.
+  unsigned GetInstSizeInBytes(const MachineInstr *MI) const;
+
+protected:
+  bool isZeroImm(const MachineOperand &op) const;
+
+  MachineMemOperand *GetMemOperand(MachineBasicBlock &MBB, int FI,
+                                   unsigned Flag) const;
+
+private:
+  virtual unsigned GetAnalyzableBrOpc(unsigned Opc) const = 0;
+
+  void AnalyzeCondBr(const MachineInstr *Inst, unsigned Opc,
+                     MachineBasicBlock *&BB,
+                     SmallVectorImpl<MachineOperand> &Cond) const;
+
+  void BuildCondBr(MachineBasicBlock &MBB, MachineBasicBlock *TBB, DebugLoc DL,
+                   const SmallVectorImpl<MachineOperand>& Cond) const;
+};
+
+namespace Mips {
+  /// Emit a series of instructions to load an immediate. All instructions
+  /// except for the last one are emitted. The function returns the number of
+  /// MachineInstrs generated. The opcode-immediate pair of the last
+  /// instruction is returned in LastInst, if it is not 0.
+  unsigned
+  loadImmediate(int64_t Imm, bool IsN64, const TargetInstrInfo &TII,
+                MachineBasicBlock& MBB, MachineBasicBlock::iterator II,
+                DebugLoc DL, bool LastInstrIsADDiu,
+                MipsAnalyzeImmediate::Inst *LastInst);
+}
+
+/// Create MipsInstrInfo objects.
+const MipsInstrInfo *createMips16InstrInfo(MipsTargetMachine &TM);
+const MipsInstrInfo *createMipsSEInstrInfo(MipsTargetMachine &TM);
+
+}
+
+#endif