refactor code so that LLVMTargetMachine creates the asmstreamer and

[oota-llvm.git] / lib / Target / CellSPU / SPUInstrInfo.h

diff --git a/lib/Target/CellSPU/SPUInstrInfo.h b/lib/Target/CellSPU/SPUInstrInfo.h
index 10c39a0545ec9a186e1f064cfb2803325fa4f64d..42677fcdda72c4bd541d3ebffd21ebda8e9c606c 100644 (file)
--- a/lib/Target/CellSPU/SPUInstrInfo.h
+++ b/lib/Target/CellSPU/SPUInstrInfo.h
@@ -23,71 +23,77 @@ namespace llvm {
   class SPUInstrInfo : public TargetInstrInfoImpl {
     SPUTargetMachine &TM;
     const SPURegisterInfo RI;
+  protected:
+    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;
+    }
+
   public:
-    SPUInstrInfo(SPUTargetMachine &tm);
+    explicit SPUInstrInfo(SPUTargetMachine &tm);
 
     /// 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 MRegisterInfo &getRegisterInfo() const { return RI; }
-
-    /// getPointerRegClass - Return the register class to use to hold pointers.
-    /// This is used for addressing modes.
-    virtual const TargetRegisterClass *getPointerRegClass() const;  
-
-    // Return true if the instruction is a register to register move and
-    // leave the source and dest operands in the passed parameters.
-    //
-    virtual bool isMoveInstr(const MachineInstr& MI,
-                             unsigned& sourceReg,
-                             unsigned& destReg) const;
-
-    unsigned isLoadFromStackSlot(MachineInstr *MI, int &FrameIndex) const;
-    unsigned isStoreToStackSlot(MachineInstr *MI, int &FrameIndex) const;
-    
-    virtual void copyRegToReg(MachineBasicBlock &MBB,
+    virtual const SPURegisterInfo &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;
+
+    unsigned isLoadFromStackSlot(const MachineInstr *MI,
+                                 int &FrameIndex) const;
+    unsigned isStoreToStackSlot(const MachineInstr *MI,
+                                int &FrameIndex) const;
+
+    virtual bool copyRegToReg(MachineBasicBlock &MBB,
                               MachineBasicBlock::iterator MI,
                               unsigned DestReg, unsigned SrcReg,
                               const TargetRegisterClass *DestRC,
                               const TargetRegisterClass *SrcRC) const;
-    
+
     //! Store a register to a stack slot, based on its register class.
     virtual void storeRegToStackSlot(MachineBasicBlock &MBB,
                                      MachineBasicBlock::iterator MBBI,
                                      unsigned SrcReg, bool isKill, int FrameIndex,
                                      const TargetRegisterClass *RC) const;
 
-    //! Store a register to an address, based on its register class
-    virtual void storeRegToAddr(MachineFunction &MF, unsigned SrcReg, bool isKill,
-                                                  SmallVectorImpl<MachineOperand> &Addr,
-                                                  const TargetRegisterClass *RC,
-                                                  SmallVectorImpl<MachineInstr*> &NewMIs) const;
-
     //! Load a register from a stack slot, based on its register class.
     virtual void loadRegFromStackSlot(MachineBasicBlock &MBB,
                                       MachineBasicBlock::iterator MBBI,
                                       unsigned DestReg, int FrameIndex,
                                       const TargetRegisterClass *RC) const;
 
-    //! Loqad a register from an address, based on its register class
-    virtual void loadRegFromAddr(MachineFunction &MF, unsigned DestReg,
-                                                         SmallVectorImpl<MachineOperand> &Addr,
-                                                         const TargetRegisterClass *RC,
-                                 SmallVectorImpl<MachineInstr*> &NewMIs) const;
-    
-    //! Fold spills into load/store instructions
-    virtual MachineInstr* foldMemoryOperand(MachineInstr* MI,
-                                            SmallVectorImpl<unsigned> &Ops,
-                                            int FrameIndex) const;
+    //! Return true if the specified load or store can be folded
+    virtual
+    bool canFoldMemoryOperand(const MachineInstr *MI,
+                              const SmallVectorImpl<unsigned> &Ops) const;
 
-    //! Fold any load/store to an operand
-    virtual MachineInstr* foldMemoryOperand(MachineInstr* MI,
-                                            SmallVectorImpl<unsigned> &Ops,
-                                            MachineInstr* LoadMI) const {
-      return 0;
-    }
-  };
+    //! Reverses a branch's condition, returning false on success.
+    virtual
+    bool ReverseBranchCondition(SmallVectorImpl<MachineOperand> &Cond) const;
+
+    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) const;
+   };
 }
 
 #endif