SparcISelLowering.h revision 0eefda1335f5e86f95dbb58352321a43237e1089
1d23405e6f04135cabcad4d9bd7aa6e4f187bed3aChris Lattner//===-- SparcISelLowering.h - Sparc DAG Lowering Interface ------*- C++ -*-===// 2d23405e6f04135cabcad4d9bd7aa6e4f187bed3aChris Lattner// 3d23405e6f04135cabcad4d9bd7aa6e4f187bed3aChris Lattner// The LLVM Compiler Infrastructure 4d23405e6f04135cabcad4d9bd7aa6e4f187bed3aChris Lattner// 5d23405e6f04135cabcad4d9bd7aa6e4f187bed3aChris Lattner// This file is distributed under the University of Illinois Open Source 6d23405e6f04135cabcad4d9bd7aa6e4f187bed3aChris Lattner// License. See LICENSE.TXT for details. 7d23405e6f04135cabcad4d9bd7aa6e4f187bed3aChris Lattner// 8d23405e6f04135cabcad4d9bd7aa6e4f187bed3aChris Lattner//===----------------------------------------------------------------------===// 9d23405e6f04135cabcad4d9bd7aa6e4f187bed3aChris Lattner// 10d23405e6f04135cabcad4d9bd7aa6e4f187bed3aChris Lattner// This file defines the interfaces that Sparc uses to lower LLVM code into a 11d23405e6f04135cabcad4d9bd7aa6e4f187bed3aChris Lattner// selection DAG. 12d23405e6f04135cabcad4d9bd7aa6e4f187bed3aChris Lattner// 13d23405e6f04135cabcad4d9bd7aa6e4f187bed3aChris Lattner//===----------------------------------------------------------------------===// 14d23405e6f04135cabcad4d9bd7aa6e4f187bed3aChris Lattner 15d23405e6f04135cabcad4d9bd7aa6e4f187bed3aChris Lattner#ifndef SPARC_ISELLOWERING_H 16d23405e6f04135cabcad4d9bd7aa6e4f187bed3aChris Lattner#define SPARC_ISELLOWERING_H 17d23405e6f04135cabcad4d9bd7aa6e4f187bed3aChris Lattner 18d23405e6f04135cabcad4d9bd7aa6e4f187bed3aChris Lattner#include "llvm/Target/TargetLowering.h" 19d23405e6f04135cabcad4d9bd7aa6e4f187bed3aChris Lattner#include "Sparc.h" 20d23405e6f04135cabcad4d9bd7aa6e4f187bed3aChris Lattner 21d23405e6f04135cabcad4d9bd7aa6e4f187bed3aChris Lattnernamespace llvm { 22d23405e6f04135cabcad4d9bd7aa6e4f187bed3aChris Lattner namespace SPISD { 23d23405e6f04135cabcad4d9bd7aa6e4f187bed3aChris Lattner enum { 240ba2bcfcc3149a25d08aa8aa00fb6c34a4e25bddDan Gohman FIRST_NUMBER = ISD::BUILTIN_OP_END, 25d23405e6f04135cabcad4d9bd7aa6e4f187bed3aChris Lattner CMPICC, // Compare two GPR operands, set icc. 26d23405e6f04135cabcad4d9bd7aa6e4f187bed3aChris Lattner CMPFCC, // Compare two FP operands, set fcc. 27d23405e6f04135cabcad4d9bd7aa6e4f187bed3aChris Lattner BRICC, // Branch to dest on icc condition 28d23405e6f04135cabcad4d9bd7aa6e4f187bed3aChris Lattner BRFCC, // Branch to dest on fcc condition 29d23405e6f04135cabcad4d9bd7aa6e4f187bed3aChris Lattner SELECT_ICC, // Select between two values using the current ICC flags. 30d23405e6f04135cabcad4d9bd7aa6e4f187bed3aChris Lattner SELECT_FCC, // Select between two values using the current FCC flags. 310eefda1335f5e86f95dbb58352321a43237e1089Anton Korobeynikov 32d23405e6f04135cabcad4d9bd7aa6e4f187bed3aChris Lattner Hi, Lo, // Hi/Lo operations, typically on a global address. 330eefda1335f5e86f95dbb58352321a43237e1089Anton Korobeynikov 34d23405e6f04135cabcad4d9bd7aa6e4f187bed3aChris Lattner FTOI, // FP to Int within a FP register. 35d23405e6f04135cabcad4d9bd7aa6e4f187bed3aChris Lattner ITOF, // Int to FP within a FP register. 360eefda1335f5e86f95dbb58352321a43237e1089Anton Korobeynikov 37d23405e6f04135cabcad4d9bd7aa6e4f187bed3aChris Lattner CALL, // A call instruction. 38d23405e6f04135cabcad4d9bd7aa6e4f187bed3aChris Lattner RET_FLAG // Return with a flag operand. 39d23405e6f04135cabcad4d9bd7aa6e4f187bed3aChris Lattner }; 40d23405e6f04135cabcad4d9bd7aa6e4f187bed3aChris Lattner } 410eefda1335f5e86f95dbb58352321a43237e1089Anton Korobeynikov 42d23405e6f04135cabcad4d9bd7aa6e4f187bed3aChris Lattner class SparcTargetLowering : public TargetLowering { 43d23405e6f04135cabcad4d9bd7aa6e4f187bed3aChris Lattner int VarArgsFrameOffset; // Frame offset to start of varargs area. 44d23405e6f04135cabcad4d9bd7aa6e4f187bed3aChris Lattner public: 45d23405e6f04135cabcad4d9bd7aa6e4f187bed3aChris Lattner SparcTargetLowering(TargetMachine &TM); 46475871a144eb604ddaf37503397ba0941442e5fbDan Gohman virtual SDValue LowerOperation(SDValue Op, SelectionDAG &DAG); 470eefda1335f5e86f95dbb58352321a43237e1089Anton Korobeynikov 48d23405e6f04135cabcad4d9bd7aa6e4f187bed3aChris Lattner int getVarArgsFrameOffset() const { return VarArgsFrameOffset; } 490eefda1335f5e86f95dbb58352321a43237e1089Anton Korobeynikov 500eefda1335f5e86f95dbb58352321a43237e1089Anton Korobeynikov /// computeMaskedBitsForTargetNode - Determine which of the bits specified 510eefda1335f5e86f95dbb58352321a43237e1089Anton Korobeynikov /// in Mask are known to be either zero or one and return them in the 52d23405e6f04135cabcad4d9bd7aa6e4f187bed3aChris Lattner /// KnownZero/KnownOne bitsets. 53475871a144eb604ddaf37503397ba0941442e5fbDan Gohman virtual void computeMaskedBitsForTargetNode(const SDValue Op, 54d23405e6f04135cabcad4d9bd7aa6e4f187bed3aChris Lattner const APInt &Mask, 550eefda1335f5e86f95dbb58352321a43237e1089Anton Korobeynikov APInt &KnownZero, 56d23405e6f04135cabcad4d9bd7aa6e4f187bed3aChris Lattner APInt &KnownOne, 57d23405e6f04135cabcad4d9bd7aa6e4f187bed3aChris Lattner const SelectionDAG &DAG, 58d23405e6f04135cabcad4d9bd7aa6e4f187bed3aChris Lattner unsigned Depth = 0) const; 590eefda1335f5e86f95dbb58352321a43237e1089Anton Korobeynikov 60a44b674a42b6ca57128c4eb5a358298ed3bb1406Dan Gohman virtual void LowerArguments(Function &F, SelectionDAG &DAG, 61475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SmallVectorImpl<SDValue> &ArgValues); 62d23405e6f04135cabcad4d9bd7aa6e4f187bed3aChris Lattner virtual MachineBasicBlock *EmitInstrWithCustomInserter(MachineInstr *MI, 63d23405e6f04135cabcad4d9bd7aa6e4f187bed3aChris Lattner MachineBasicBlock *MBB); 640eefda1335f5e86f95dbb58352321a43237e1089Anton Korobeynikov 65d23405e6f04135cabcad4d9bd7aa6e4f187bed3aChris Lattner virtual const char *getTargetNodeName(unsigned Opcode) const; 660eefda1335f5e86f95dbb58352321a43237e1089Anton Korobeynikov 670eefda1335f5e86f95dbb58352321a43237e1089Anton Korobeynikov ConstraintType getConstraintType(const std::string &Constraint) const; 680eefda1335f5e86f95dbb58352321a43237e1089Anton Korobeynikov std::pair<unsigned, const TargetRegisterClass*> 690eefda1335f5e86f95dbb58352321a43237e1089Anton Korobeynikov getRegForInlineAsmConstraint(const std::string &Constraint, MVT VT) const; 700eefda1335f5e86f95dbb58352321a43237e1089Anton Korobeynikov std::vector<unsigned> 710eefda1335f5e86f95dbb58352321a43237e1089Anton Korobeynikov getRegClassForInlineAsmConstraint(const std::string &Constraint, 720eefda1335f5e86f95dbb58352321a43237e1089Anton Korobeynikov MVT VT) const; 73d23405e6f04135cabcad4d9bd7aa6e4f187bed3aChris Lattner }; 74d23405e6f04135cabcad4d9bd7aa6e4f187bed3aChris Lattner} // end namespace llvm 75d23405e6f04135cabcad4d9bd7aa6e4f187bed3aChris Lattner 76d23405e6f04135cabcad4d9bd7aa6e4f187bed3aChris Lattner#endif // SPARC_ISELLOWERING_H 77