88 lines
3.5 KiB
C++
88 lines
3.5 KiB
C++
//===- WDC65816ISelLowering.h - WDC65816 DAG Lowering Interface -*- C++ -*-===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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//
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// This file defines the interfaces that WDC65816 uses to lower LLVM code into a
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// selection DAG.
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//
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//===----------------------------------------------------------------------===//
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#ifndef WDC65816_ISELLOWERING_H
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#define WDC65816_ISELLOWERING_H
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#include "WDC65816.h"
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#include "llvm/Target/TargetLowering.h"
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namespace llvm {
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namespace WDCISD {
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enum {
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FIRST_NUMBER = ISD::BUILTIN_OP_END,
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RET_FLAG, // Return with a flag operand.
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Wrapper
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#if 0
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CMPICC, // Compare two GPR operands, set icc+xcc.
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CMPFCC, // Compare two FP operands, set fcc.
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BRICC, // Branch to dest on icc condition
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BRXCC, // Branch to dest on xcc condition (64-bit only).
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BRFCC, // Branch to dest on fcc condition
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SELECT_ICC, // Select between two values using the current ICC flags.
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SELECT_XCC, // Select between two values using the current XCC flags.
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SELECT_FCC, // Select between two values using the current FCC flags.
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Hi, Lo, // Hi/Lo operations, typically on a global address.
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FTOI, // FP to Int within a FP register.
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ITOF, // Int to FP within a FP register.
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FTOX, // FP to Int64 within a FP register.
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XTOF, // Int64 to FP within a FP register.
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CALL, // A call instruction.
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GLOBAL_BASE_REG, // Global base reg for PIC.
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FLUSHW, // FLUSH register windows to stack.
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TLS_ADD, // For Thread Local Storage (TLS).
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TLS_LD,
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TLS_CALL
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#endif
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};
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}
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class WDC65816TargetLowering : public TargetLowering {
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public:
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WDC65816TargetLowering(TargetMachine &TM);
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virtual SDValue
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LowerFormalArguments(SDValue Chain,
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CallingConv::ID CallConv,
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bool isVarArg,
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const SmallVectorImpl<ISD::InputArg> &Ins,
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SDLoc dl, SelectionDAG &DAG,
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SmallVectorImpl<SDValue> &InVals) const;
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virtual SDValue
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LowerReturn(SDValue Chain,
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CallingConv::ID CallConv, bool isVarArg,
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const SmallVectorImpl<ISD::OutputArg> &Outs,
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const SmallVectorImpl<SDValue> &OutVals,
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SDLoc dl, SelectionDAG &DAG) const;
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virtual const char *getTargetNodeName(unsigned Opcode) const;
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SDValue LowerGlobalAddress(SDValue Op, SelectionDAG &DAG) const;
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virtual void ReplaceNodeResults(SDNode *N, SmallVectorImpl<SDValue>&Results,
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SelectionDAG &DAG) const;
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virtual void LowerOperationWrapper(SDNode *N,
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SmallVectorImpl<SDValue> &Results,
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SelectionDAG &DAG) const;
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virtual SDValue LowerOperation(SDValue Op, SelectionDAG &DAG) const;
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};
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} // end namespace llvm
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#endif // WDC65816_ISELLOWERING_H
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