forked from OSchip/llvm-project
104 lines
3.5 KiB
C++
104 lines
3.5 KiB
C++
//==-- MSP430ISelLowering.h - MSP430 DAG Lowering Interface ------*- C++ -*-==//
|
|
//
|
|
// The LLVM Compiler Infrastructure
|
|
//
|
|
// This file is distributed under the University of Illinois Open Source
|
|
// License. See LICENSE.TXT for details.
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
//
|
|
// This file defines the interfaces that MSP430 uses to lower LLVM code into a
|
|
// selection DAG.
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
#ifndef LLVM_TARGET_MSP430_ISELLOWERING_H
|
|
#define LLVM_TARGET_MSP430_ISELLOWERING_H
|
|
|
|
#include "MSP430.h"
|
|
#include "llvm/CodeGen/SelectionDAG.h"
|
|
#include "llvm/Target/TargetLowering.h"
|
|
|
|
namespace llvm {
|
|
namespace MSP430ISD {
|
|
enum {
|
|
FIRST_NUMBER = ISD::BUILTIN_OP_END,
|
|
|
|
/// Return with a flag operand. Operand 0 is the chain operand.
|
|
RET_FLAG,
|
|
|
|
/// Y = R{R,L}A X, rotate right (left) arithmetically
|
|
RRA, RLA,
|
|
|
|
/// Y = RRC X, rotate right via carry
|
|
RRC,
|
|
|
|
/// CALL/TAILCALL - These operations represent an abstract call
|
|
/// instruction, which includes a bunch of information.
|
|
CALL,
|
|
|
|
/// Wrapper - A wrapper node for TargetConstantPool, TargetExternalSymbol,
|
|
/// and TargetGlobalAddress.
|
|
Wrapper,
|
|
|
|
/// CMP - Compare instruction.
|
|
CMP,
|
|
|
|
/// SetCC. Operand 0 is condition code, and operand 1 is the flag
|
|
/// operand produced by a CMP instruction.
|
|
SETCC,
|
|
|
|
/// MSP430 conditional branches. Operand 0 is the chain operand, operand 1
|
|
/// is the block to branch if condition is true, operand 2 is the
|
|
/// condition code, and operand 3 is the flag operand produced by a CMP
|
|
/// instruction.
|
|
BR_CC,
|
|
|
|
/// SELECT_CC. Operand 0 and operand 1 are selection variable, operand 3
|
|
/// is condition code and operand 4 is flag operand.
|
|
SELECT_CC
|
|
};
|
|
}
|
|
|
|
class MSP430Subtarget;
|
|
class MSP430TargetMachine;
|
|
|
|
class MSP430TargetLowering : public TargetLowering {
|
|
public:
|
|
explicit MSP430TargetLowering(MSP430TargetMachine &TM);
|
|
|
|
/// LowerOperation - Provide custom lowering hooks for some operations.
|
|
virtual SDValue LowerOperation(SDValue Op, SelectionDAG &DAG);
|
|
|
|
/// getTargetNodeName - This method returns the name of a target specific
|
|
/// DAG node.
|
|
virtual const char *getTargetNodeName(unsigned Opcode) const;
|
|
|
|
SDValue LowerFORMAL_ARGUMENTS(SDValue Op, SelectionDAG &DAG);
|
|
SDValue LowerCALL(SDValue Op, SelectionDAG &DAG);
|
|
SDValue LowerRET(SDValue Op, SelectionDAG &DAG);
|
|
SDValue LowerCCCArguments(SDValue Op, SelectionDAG &DAG);
|
|
SDValue LowerShifts(SDValue Op, SelectionDAG &DAG);
|
|
SDValue LowerGlobalAddress(SDValue Op, SelectionDAG &DAG);
|
|
SDValue LowerExternalSymbol(SDValue Op, SelectionDAG &DAG);
|
|
SDValue LowerBR_CC(SDValue Op, SelectionDAG &DAG);
|
|
SDValue LowerSELECT_CC(SDValue Op, SelectionDAG &DAG);
|
|
SDValue LowerSIGN_EXTEND(SDValue Op, SelectionDAG &DAG);
|
|
|
|
SDValue LowerCCCCallTo(SDValue Op, SelectionDAG &DAG,
|
|
unsigned CC);
|
|
SDNode* LowerCallResult(SDValue Chain, SDValue InFlag,
|
|
CallSDNode *TheCall,
|
|
unsigned CallingConv, SelectionDAG &DAG);
|
|
|
|
MachineBasicBlock* EmitInstrWithCustomInserter(MachineInstr *MI,
|
|
MachineBasicBlock *BB) const;
|
|
|
|
private:
|
|
const MSP430Subtarget &Subtarget;
|
|
const MSP430TargetMachine &TM;
|
|
};
|
|
} // namespace llvm
|
|
|
|
#endif // LLVM_TARGET_MSP430_ISELLOWERING_H
|