forked from OSchip/llvm-project
147 lines
5.6 KiB
C++
147 lines
5.6 KiB
C++
//===-- LanaiISelLowering.h - Lanai 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 Lanai uses to lower LLVM code into a
|
|
// selection DAG.
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
#ifndef LLVM_LIB_TARGET_LANAI_LANAIISELLOWERING_H
|
|
#define LLVM_LIB_TARGET_LANAI_LANAIISELLOWERING_H
|
|
|
|
#include "Lanai.h"
|
|
#include "LanaiRegisterInfo.h"
|
|
#include "llvm/CodeGen/SelectionDAG.h"
|
|
#include "llvm/Target/TargetLowering.h"
|
|
|
|
namespace llvm {
|
|
namespace LanaiISD {
|
|
enum {
|
|
FIRST_NUMBER = ISD::BUILTIN_OP_END,
|
|
|
|
ADJDYNALLOC,
|
|
|
|
// Return with a flag operand. Operand 0 is the chain operand.
|
|
RET_FLAG,
|
|
|
|
// CALL - These operations represent an abstract call instruction, which
|
|
// includes a bunch of information.
|
|
CALL,
|
|
|
|
// SELECT_CC - Operand 0 and operand 1 are selection variable, operand 3
|
|
// is condition code and operand 4 is flag operand.
|
|
SELECT_CC,
|
|
|
|
// SETCC - Store the conditional code to a register.
|
|
SETCC,
|
|
|
|
// SET_FLAG - Set flag compare.
|
|
SET_FLAG,
|
|
|
|
// SUBBF - Subtract with borrow that sets flags.
|
|
SUBBF,
|
|
|
|
// BR_CC - Used to glue together a conditional branch and comparison
|
|
BR_CC,
|
|
|
|
// Wrapper - A wrapper node for TargetConstantPool, TargetExternalSymbol,
|
|
// and TargetGlobalAddress.
|
|
Wrapper,
|
|
|
|
// Get the Higher/Lower 16 bits from a 32-bit immediate.
|
|
HI,
|
|
LO,
|
|
|
|
// Small 21-bit immediate in global memory.
|
|
SMALL
|
|
};
|
|
} // namespace LanaiISD
|
|
|
|
class LanaiSubtarget;
|
|
|
|
class LanaiTargetLowering : public TargetLowering {
|
|
public:
|
|
LanaiTargetLowering(const TargetMachine &TM, const LanaiSubtarget &STI);
|
|
|
|
// LowerOperation - Provide custom lowering hooks for some operations.
|
|
SDValue LowerOperation(SDValue Op, SelectionDAG &DAG) const override;
|
|
|
|
// getTargetNodeName - This method returns the name of a target specific
|
|
// DAG node.
|
|
const char *getTargetNodeName(unsigned Opcode) const override;
|
|
|
|
SDValue LowerBlockAddress(SDValue Op, SelectionDAG &DAG) const;
|
|
SDValue LowerBR_CC(SDValue Op, SelectionDAG &DAG) const;
|
|
SDValue LowerConstantPool(SDValue Op, SelectionDAG &DAG) const;
|
|
SDValue LowerDYNAMIC_STACKALLOC(SDValue Op, SelectionDAG &DAG) const;
|
|
SDValue LowerFRAMEADDR(SDValue Op, SelectionDAG &DAG) const;
|
|
SDValue LowerGlobalAddress(SDValue Op, SelectionDAG &DAG) const;
|
|
SDValue LowerJumpTable(SDValue Op, SelectionDAG &DAG) const;
|
|
SDValue LowerMUL(SDValue Op, SelectionDAG &DAG) const;
|
|
SDValue LowerRETURNADDR(SDValue Op, SelectionDAG &DAG) const;
|
|
SDValue LowerSELECT_CC(SDValue Op, SelectionDAG &DAG) const;
|
|
SDValue LowerSETCC(SDValue Op, SelectionDAG &DAG) const;
|
|
SDValue LowerSETCCE(SDValue Op, SelectionDAG &DAG) const;
|
|
SDValue LowerSRL_PARTS(SDValue Op, SelectionDAG &DAG) const;
|
|
SDValue LowerVASTART(SDValue Op, SelectionDAG &DAG) const;
|
|
|
|
unsigned getRegisterByName(const char *RegName, EVT VT,
|
|
SelectionDAG &DAG) const override;
|
|
std::pair<unsigned, const TargetRegisterClass *>
|
|
getRegForInlineAsmConstraint(const TargetRegisterInfo *TRI,
|
|
StringRef Constraint, MVT VT) const override;
|
|
ConstraintWeight
|
|
getSingleConstraintMatchWeight(AsmOperandInfo &Info,
|
|
const char *Constraint) const override;
|
|
void LowerAsmOperandForConstraint(SDValue Op, std::string &Constraint,
|
|
std::vector<SDValue> &Ops,
|
|
SelectionDAG &DAG) const override;
|
|
|
|
private:
|
|
SDValue LowerCCCCallTo(SDValue Chain, SDValue Callee,
|
|
CallingConv::ID CallConv, bool IsVarArg,
|
|
bool IsTailCall,
|
|
const SmallVectorImpl<ISD::OutputArg> &Outs,
|
|
const SmallVectorImpl<SDValue> &OutVals,
|
|
const SmallVectorImpl<ISD::InputArg> &Ins,
|
|
const SDLoc &dl, SelectionDAG &DAG,
|
|
SmallVectorImpl<SDValue> &InVals) const;
|
|
|
|
SDValue LowerCCCArguments(SDValue Chain, CallingConv::ID CallConv,
|
|
bool IsVarArg,
|
|
const SmallVectorImpl<ISD::InputArg> &Ins,
|
|
const SDLoc &DL, SelectionDAG &DAG,
|
|
SmallVectorImpl<SDValue> &InVals) const;
|
|
|
|
SDValue LowerCallResult(SDValue Chain, SDValue InFlag,
|
|
CallingConv::ID CallConv, bool IsVarArg,
|
|
const SmallVectorImpl<ISD::InputArg> &Ins,
|
|
const SDLoc &DL, SelectionDAG &DAG,
|
|
SmallVectorImpl<SDValue> &InVals) const;
|
|
|
|
SDValue LowerCall(TargetLowering::CallLoweringInfo &CLI,
|
|
SmallVectorImpl<SDValue> &InVals) const override;
|
|
|
|
SDValue LowerFormalArguments(SDValue Chain, CallingConv::ID CallConv,
|
|
bool IsVarArg,
|
|
const SmallVectorImpl<ISD::InputArg> &Ins,
|
|
const SDLoc &DL, SelectionDAG &DAG,
|
|
SmallVectorImpl<SDValue> &InVals) const override;
|
|
|
|
SDValue LowerReturn(SDValue Chain, CallingConv::ID CallConv, bool IsVarArg,
|
|
const SmallVectorImpl<ISD::OutputArg> &Outs,
|
|
const SmallVectorImpl<SDValue> &OutVals, const SDLoc &DL,
|
|
SelectionDAG &DAG) const override;
|
|
|
|
const LanaiRegisterInfo *TRI;
|
|
};
|
|
} // namespace llvm
|
|
|
|
#endif // LLVM_LIB_TARGET_LANAI_LANAIISELLOWERING_H
|