1 //==-- MSP430ISelLowering.h - MSP430 DAG Lowering Interface ------*- C++ -*-==//
3 // The LLVM Compiler Infrastructure
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
8 //===----------------------------------------------------------------------===//
10 // This file defines the interfaces that MSP430 uses to lower LLVM code into a
13 //===----------------------------------------------------------------------===//
15 #ifndef LLVM_TARGET_MSP430_ISELLOWERING_H
16 #define LLVM_TARGET_MSP430_ISELLOWERING_H
19 #include "llvm/CodeGen/SelectionDAG.h"
20 #include "llvm/Target/TargetLowering.h"
25 FIRST_NUMBER = ISD::BUILTIN_OP_END,
27 /// Return with a flag operand. Operand 0 is the chain operand.
30 /// Y = RRA X, rotate right arithmetically
35 class MSP430Subtarget;
36 class MSP430TargetMachine;
38 class MSP430TargetLowering : public TargetLowering {
40 explicit MSP430TargetLowering(MSP430TargetMachine &TM);
42 /// LowerOperation - Provide custom lowering hooks for some operations.
43 virtual SDValue LowerOperation(SDValue Op, SelectionDAG &DAG);
45 /// getTargetNodeName - This method returns the name of a target specific
47 virtual const char *getTargetNodeName(unsigned Opcode) const;
49 SDValue LowerFORMAL_ARGUMENTS(SDValue Op, SelectionDAG &DAG);
50 SDValue LowerRET(SDValue Op, SelectionDAG &DAG);
51 SDValue LowerCCCArguments(SDValue Op, SelectionDAG &DAG);
52 SDValue LowerShifts(SDValue Op, SelectionDAG &DAG);
54 const MSP430Subtarget &Subtarget;
55 const MSP430TargetMachine &TM;
59 #endif // LLVM_TARGET_MSP430_ISELLOWERING_H