mirror of
https://github.com/c64scene-ar/llvm-6502.git
synced 2024-12-19 01:34:32 +00:00
fe09fb22aa
changes in class MachineRegInfo (see MachineRegInfo.h for details).
Added {LD,ST}[X]FSR instructions.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2839 91177308-0d34-0410-b5e6-96231b3b80d8
656 lines
25 KiB
C++
656 lines
25 KiB
C++
//***************************************************************************
|
|
// File:
|
|
// SparcInternals.h
|
|
//
|
|
// Purpose:
|
|
// This file defines stuff that is to be private to the Sparc
|
|
// backend, but is shared among different portions of the backend.
|
|
//**************************************************************************/
|
|
|
|
|
|
#ifndef SPARC_INTERNALS_H
|
|
#define SPARC_INTERNALS_H
|
|
|
|
#include "llvm/Target/TargetMachine.h"
|
|
#include "llvm/Target/MachineSchedInfo.h"
|
|
#include "llvm/Target/MachineFrameInfo.h"
|
|
#include "llvm/Target/MachineCacheInfo.h"
|
|
#include "llvm/Target/MachineRegInfo.h"
|
|
#include "llvm/Type.h"
|
|
#include <sys/types.h>
|
|
|
|
class LiveRange;
|
|
class UltraSparc;
|
|
class PhyRegAlloc;
|
|
class Pass;
|
|
|
|
Pass *createPrologEpilogCodeInserter(TargetMachine &TM);
|
|
|
|
// OpCodeMask definitions for the Sparc V9
|
|
//
|
|
const OpCodeMask Immed = 0x00002000; // immed or reg operand?
|
|
const OpCodeMask Annul = 0x20000000; // annul delay instr?
|
|
const OpCodeMask PredictTaken = 0x00080000; // predict branch taken?
|
|
|
|
|
|
enum SparcInstrSchedClass {
|
|
SPARC_NONE, /* Instructions with no scheduling restrictions */
|
|
SPARC_IEUN, /* Integer class that can use IEU0 or IEU1 */
|
|
SPARC_IEU0, /* Integer class IEU0 */
|
|
SPARC_IEU1, /* Integer class IEU1 */
|
|
SPARC_FPM, /* FP Multiply or Divide instructions */
|
|
SPARC_FPA, /* All other FP instructions */
|
|
SPARC_CTI, /* Control-transfer instructions */
|
|
SPARC_LD, /* Load instructions */
|
|
SPARC_ST, /* Store instructions */
|
|
SPARC_SINGLE, /* Instructions that must issue by themselves */
|
|
|
|
SPARC_INV, /* This should stay at the end for the next value */
|
|
SPARC_NUM_SCHED_CLASSES = SPARC_INV
|
|
};
|
|
|
|
|
|
//---------------------------------------------------------------------------
|
|
// enum SparcMachineOpCode.
|
|
// const MachineInstrDescriptor SparcMachineInstrDesc[]
|
|
//
|
|
// Purpose:
|
|
// Description of UltraSparc machine instructions.
|
|
//
|
|
//---------------------------------------------------------------------------
|
|
|
|
enum SparcMachineOpCode {
|
|
#define I(ENUM, OPCODESTRING, NUMOPERANDS, RESULTPOS, MAXIMM, IMMSE, \
|
|
NUMDELAYSLOTS, LATENCY, SCHEDCLASS, INSTFLAGS) \
|
|
ENUM,
|
|
#include "SparcInstr.def"
|
|
|
|
// End-of-array marker
|
|
INVALID_OPCODE,
|
|
NUM_REAL_OPCODES = PHI, // number of valid opcodes
|
|
NUM_TOTAL_OPCODES = INVALID_OPCODE
|
|
};
|
|
|
|
|
|
// Array of machine instruction descriptions...
|
|
extern const MachineInstrDescriptor SparcMachineInstrDesc[];
|
|
|
|
|
|
//---------------------------------------------------------------------------
|
|
// class UltraSparcInstrInfo
|
|
//
|
|
// Purpose:
|
|
// Information about individual instructions.
|
|
// Most information is stored in the SparcMachineInstrDesc array above.
|
|
// Other information is computed on demand, and most such functions
|
|
// default to member functions in base class MachineInstrInfo.
|
|
//---------------------------------------------------------------------------
|
|
|
|
class UltraSparcInstrInfo : public MachineInstrInfo {
|
|
public:
|
|
/*ctor*/ UltraSparcInstrInfo(const TargetMachine& tgt);
|
|
|
|
//
|
|
// All immediate constants are in position 1 except the
|
|
// store instructions.
|
|
//
|
|
virtual int getImmedConstantPos(MachineOpCode opCode) const {
|
|
bool ignore;
|
|
if (this->maxImmedConstant(opCode, ignore) != 0)
|
|
{
|
|
assert(! this->isStore((MachineOpCode) STB - 1)); // 1st store opcode
|
|
assert(! this->isStore((MachineOpCode) STXFSR+1));// last store opcode
|
|
return (opCode >= STB && opCode <= STXFSR)? 2 : 1;
|
|
}
|
|
else
|
|
return -1;
|
|
}
|
|
|
|
virtual bool hasResultInterlock (MachineOpCode opCode) const
|
|
{
|
|
// All UltraSPARC instructions have interlocks (note that delay slots
|
|
// are not considered here).
|
|
// However, instructions that use the result of an FCMP produce a
|
|
// 9-cycle stall if they are issued less than 3 cycles after the FCMP.
|
|
// Force the compiler to insert a software interlock (i.e., gap of
|
|
// 2 other groups, including NOPs if necessary).
|
|
return (opCode == FCMPS || opCode == FCMPD || opCode == FCMPQ);
|
|
}
|
|
|
|
//-------------------------------------------------------------------------
|
|
// Code generation support for creating individual machine instructions
|
|
//-------------------------------------------------------------------------
|
|
|
|
// Create an instruction sequence to put the constant `val' into
|
|
// the virtual register `dest'. `val' may be a Constant or a
|
|
// GlobalValue, viz., the constant address of a global variable or function.
|
|
// The generated instructions are returned in `mvec'.
|
|
// Any temp. registers (TmpInstruction) created are recorded in mcfi.
|
|
// Any stack space required is allocated via mcff.
|
|
//
|
|
virtual void CreateCodeToLoadConst(const TargetMachine& target,
|
|
Function* F,
|
|
Value* val,
|
|
Instruction* dest,
|
|
std::vector<MachineInstr*>& mvec,
|
|
MachineCodeForInstruction& mcfi) const;
|
|
|
|
// Create an instruction sequence to copy an integer value `val'
|
|
// to a floating point value `dest' by copying to memory and back.
|
|
// val must be an integral type. dest must be a Float or Double.
|
|
// The generated instructions are returned in `mvec'.
|
|
// Any temp. registers (TmpInstruction) created are recorded in mcfi.
|
|
// Any stack space required is allocated via mcff.
|
|
//
|
|
virtual void CreateCodeToCopyIntToFloat(const TargetMachine& target,
|
|
Function* F,
|
|
Value* val,
|
|
Instruction* dest,
|
|
std::vector<MachineInstr*>& mvec,
|
|
MachineCodeForInstruction& mcfi) const;
|
|
|
|
// Similarly, create an instruction sequence to copy an FP value
|
|
// `val' to an integer value `dest' by copying to memory and back.
|
|
// The generated instructions are returned in `mvec'.
|
|
// Any temp. registers (TmpInstruction) created are recorded in mcfi.
|
|
// Any stack space required is allocated via mcff.
|
|
//
|
|
virtual void CreateCodeToCopyFloatToInt(const TargetMachine& target,
|
|
Function* F,
|
|
Value* val,
|
|
Instruction* dest,
|
|
std::vector<MachineInstr*>& mvec,
|
|
MachineCodeForInstruction& mcfi) const;
|
|
|
|
// Create instruction(s) to copy src to dest, for arbitrary types
|
|
// The generated instructions are returned in `mvec'.
|
|
// Any temp. registers (TmpInstruction) created are recorded in mcfi.
|
|
// Any stack space required is allocated via mcff.
|
|
//
|
|
virtual void CreateCopyInstructionsByType(const TargetMachine& target,
|
|
Function* F,
|
|
Value* src,
|
|
Instruction* dest,
|
|
std::vector<MachineInstr*>& mvec,
|
|
MachineCodeForInstruction& mcfi) const;
|
|
|
|
// Create instruction sequence to produce a sign-extended register value
|
|
// from an arbitrary sized value (sized in bits, not bytes).
|
|
// Any stack space required is allocated via mcff.
|
|
//
|
|
virtual void CreateSignExtensionInstructions(const TargetMachine& target,
|
|
Function* F,
|
|
Value* unsignedSrcVal,
|
|
unsigned int srcSizeInBits,
|
|
Value* dest,
|
|
std::vector<MachineInstr*>& mvec,
|
|
MachineCodeForInstruction& mcfi) const;
|
|
};
|
|
|
|
|
|
//----------------------------------------------------------------------------
|
|
// class UltraSparcRegInfo
|
|
//
|
|
// This class implements the virtual class MachineRegInfo for Sparc.
|
|
//
|
|
//----------------------------------------------------------------------------
|
|
|
|
class UltraSparcRegInfo : public MachineRegInfo {
|
|
// The actual register classes in the Sparc
|
|
//
|
|
enum RegClassIDs {
|
|
IntRegClassID, // Integer
|
|
FloatRegClassID, // Float (both single/double)
|
|
IntCCRegClassID, // Int Condition Code
|
|
FloatCCRegClassID // Float Condition code
|
|
};
|
|
|
|
|
|
// Type of registers available in Sparc. There can be several reg types
|
|
// in the same class. For instace, the float reg class has Single/Double
|
|
// types
|
|
//
|
|
enum RegTypes {
|
|
IntRegType,
|
|
FPSingleRegType,
|
|
FPDoubleRegType,
|
|
IntCCRegType,
|
|
FloatCCRegType
|
|
};
|
|
|
|
// **** WARNING: If the above enum order is changed, also modify
|
|
// getRegisterClassOfValue method below since it assumes this particular
|
|
// order for efficiency.
|
|
|
|
|
|
// reverse pointer to get info about the ultra sparc machine
|
|
//
|
|
const UltraSparc *const UltraSparcInfo;
|
|
|
|
// Number of registers used for passing int args (usually 6: %o0 - %o5)
|
|
//
|
|
unsigned const NumOfIntArgRegs;
|
|
|
|
// Number of registers used for passing float args (usually 32: %f0 - %f31)
|
|
//
|
|
unsigned const NumOfFloatArgRegs;
|
|
|
|
// An out of bound register number that can be used to initialize register
|
|
// numbers. Useful for error detection.
|
|
//
|
|
int const InvalidRegNum;
|
|
|
|
|
|
// ======================== Private Methods =============================
|
|
|
|
// The following methods are used to color special live ranges (e.g.
|
|
// function args and return values etc.) with specific hardware registers
|
|
// as required. See SparcRegInfo.cpp for the implementation.
|
|
//
|
|
void suggestReg4RetAddr(MachineInstr *RetMI,
|
|
LiveRangeInfo &LRI) const;
|
|
|
|
void suggestReg4CallAddr(MachineInstr *CallMI, LiveRangeInfo &LRI,
|
|
std::vector<RegClass *> RCList) const;
|
|
|
|
void InitializeOutgoingArg(MachineInstr* CallMI, AddedInstrns *CallAI,
|
|
PhyRegAlloc &PRA, LiveRange* LR,
|
|
unsigned regType, unsigned RegClassID,
|
|
int UniArgReg, unsigned int argNo,
|
|
std::vector<MachineInstr *>& AddedInstrnsBefore)
|
|
const;
|
|
|
|
// The following 4 methods are used to find the RegType (see enum above)
|
|
// for a reg class and a given primitive type, a LiveRange, a Value,
|
|
// or a particular machine register.
|
|
// The fifth function gives the reg class of the given RegType.
|
|
//
|
|
int getRegType(unsigned regClassID, const Type* type) const;
|
|
int getRegType(const LiveRange *LR) const;
|
|
int getRegType(const Value *Val) const;
|
|
int getRegType(int unifiedRegNum) const;
|
|
|
|
// Used to generate a copy instruction based on the register class of
|
|
// value.
|
|
//
|
|
MachineInstr *cpValue2RegMI(Value *Val, unsigned DestReg,
|
|
int RegType) const;
|
|
|
|
|
|
// The following 2 methods are used to order the instructions addeed by
|
|
// the register allocator in association with function calling. See
|
|
// SparcRegInfo.cpp for more details
|
|
//
|
|
void moveInst2OrdVec(std::vector<MachineInstr *> &OrdVec,
|
|
MachineInstr *UnordInst,
|
|
PhyRegAlloc &PRA) const;
|
|
|
|
void OrderAddedInstrns(std::vector<MachineInstr *> &UnordVec,
|
|
std::vector<MachineInstr *> &OrdVec,
|
|
PhyRegAlloc &PRA) const;
|
|
|
|
|
|
// Compute which register can be used for an argument, if any
|
|
//
|
|
int regNumForIntArg(bool inCallee, bool isVarArgsCall,
|
|
unsigned argNo, unsigned intArgNo, unsigned fpArgNo,
|
|
unsigned& regClassId) const;
|
|
|
|
int regNumForFPArg(unsigned RegType, bool inCallee, bool isVarArgsCall,
|
|
unsigned argNo, unsigned intArgNo, unsigned fpArgNo,
|
|
unsigned& regClassId) const;
|
|
|
|
public:
|
|
UltraSparcRegInfo(const UltraSparc &tgt);
|
|
|
|
// To get complete machine information structure using the machine register
|
|
// information
|
|
//
|
|
inline const UltraSparc &getUltraSparcInfo() const {
|
|
return *UltraSparcInfo;
|
|
}
|
|
|
|
// To find the register class used for a specified Type
|
|
//
|
|
unsigned getRegClassIDOfType(const Type *type,
|
|
bool isCCReg = false) const;
|
|
|
|
// To find the register class of a Value
|
|
//
|
|
inline unsigned getRegClassIDOfValue(const Value *Val,
|
|
bool isCCReg = false) const {
|
|
return getRegClassIDOfType(Val->getType(), isCCReg);
|
|
}
|
|
|
|
// To find the register class to which a specified register belongs
|
|
//
|
|
unsigned getRegClassIDOfReg(int unifiedRegNum) const;
|
|
unsigned getRegClassIDOfRegType(int regType) const;
|
|
|
|
// getZeroRegNum - returns the register that contains always zero this is the
|
|
// unified register number
|
|
//
|
|
virtual int getZeroRegNum() const;
|
|
|
|
// getCallAddressReg - returns the reg used for pushing the address when a
|
|
// function is called. This can be used for other purposes between calls
|
|
//
|
|
unsigned getCallAddressReg() const;
|
|
|
|
// Returns the register containing the return address.
|
|
// It should be made sure that this register contains the return
|
|
// value when a return instruction is reached.
|
|
//
|
|
unsigned getReturnAddressReg() const;
|
|
|
|
// Number of registers used for passing int args (usually 6: %o0 - %o5)
|
|
// and float args (usually 32: %f0 - %f31)
|
|
//
|
|
unsigned const GetNumOfIntArgRegs() const { return NumOfIntArgRegs; }
|
|
unsigned const GetNumOfFloatArgRegs() const { return NumOfFloatArgRegs; }
|
|
|
|
// The following methods are used to color special live ranges (e.g.
|
|
// function args and return values etc.) with specific hardware registers
|
|
// as required. See SparcRegInfo.cpp for the implementation for Sparc.
|
|
//
|
|
void suggestRegs4MethodArgs(const Function *Meth,
|
|
LiveRangeInfo& LRI) const;
|
|
|
|
void suggestRegs4CallArgs(MachineInstr *CallMI,
|
|
LiveRangeInfo& LRI,
|
|
std::vector<RegClass *> RCL) const;
|
|
|
|
void suggestReg4RetValue(MachineInstr *RetMI,
|
|
LiveRangeInfo& LRI) const;
|
|
|
|
void colorMethodArgs(const Function *Meth, LiveRangeInfo &LRI,
|
|
AddedInstrns *FirstAI) const;
|
|
|
|
void colorCallArgs(MachineInstr *CallMI, LiveRangeInfo &LRI,
|
|
AddedInstrns *CallAI, PhyRegAlloc &PRA,
|
|
const BasicBlock *BB) const;
|
|
|
|
void colorRetValue(MachineInstr *RetI, LiveRangeInfo& LRI,
|
|
AddedInstrns *RetAI) const;
|
|
|
|
|
|
// method used for printing a register for debugging purposes
|
|
//
|
|
static void printReg(const LiveRange *LR);
|
|
|
|
// Each register class has a seperate space for register IDs. To convert
|
|
// a regId in a register class to a common Id, or vice versa,
|
|
// we use the folloing methods.
|
|
//
|
|
// This method provides a unique number for each register
|
|
inline int getUnifiedRegNum(unsigned regClassID, int reg) const {
|
|
|
|
if (regClassID == IntRegClassID) {
|
|
assert(reg < 32 && "Invalid reg. number");
|
|
return reg;
|
|
}
|
|
else if (regClassID == FloatRegClassID) {
|
|
assert(reg < 64 && "Invalid reg. number");
|
|
return reg + 32; // we have 32 int regs
|
|
}
|
|
else if (regClassID == FloatCCRegClassID) {
|
|
assert(reg < 4 && "Invalid reg. number");
|
|
return reg + 32 + 64; // 32 int, 64 float
|
|
}
|
|
else if (regClassID == IntCCRegClassID ) {
|
|
assert(reg == 0 && "Invalid reg. number");
|
|
return reg + 4+ 32 + 64; // only one int CC reg
|
|
}
|
|
else if (reg==InvalidRegNum) {
|
|
return InvalidRegNum;
|
|
}
|
|
else
|
|
assert(0 && "Invalid register class");
|
|
return 0;
|
|
}
|
|
|
|
// This method converts the unified number to the number in its class,
|
|
// and returns the class ID in regClassID.
|
|
inline int getClassRegNum(int ureg, unsigned& regClassID) const {
|
|
if (ureg < 32) { regClassID = IntRegClassID; return ureg; }
|
|
else if (ureg < 32+64) { regClassID = FloatRegClassID; return ureg-32; }
|
|
else if (ureg < 4 +96) { regClassID = FloatCCRegClassID; return ureg-96; }
|
|
else if (ureg < 1 +100) { regClassID = IntCCRegClassID; return ureg-100;}
|
|
else if (ureg == InvalidRegNum) { return InvalidRegNum; }
|
|
else { assert(0 && "Invalid unified register number"); }
|
|
}
|
|
|
|
// Returns the assembly-language name of the specified machine register.
|
|
//
|
|
virtual const std::string getUnifiedRegName(int reg) const;
|
|
|
|
|
|
// returns the # of bytes of stack space allocated for each register
|
|
// type. For Sparc, currently we allocate 8 bytes on stack for all
|
|
// register types. We can optimize this later if necessary to save stack
|
|
// space (However, should make sure that stack alignment is correct)
|
|
//
|
|
inline int getSpilledRegSize(int RegType) const {
|
|
return 8;
|
|
}
|
|
|
|
|
|
// To obtain the return value and the indirect call address (if any)
|
|
// contained in a CALL machine instruction
|
|
//
|
|
const Value * getCallInstRetVal(const MachineInstr *CallMI) const;
|
|
const Value * getCallInstIndirectAddrVal(const MachineInstr *CallMI) const;
|
|
|
|
// The following methods are used to generate "copy" machine instructions
|
|
// for an architecture.
|
|
//
|
|
// The function regTypeNeedsScratchReg() can be used to check whether a
|
|
// scratch register is needed to copy a register of type `regType' to
|
|
// or from memory. If so, such a scratch register can be provided by
|
|
// the caller (e.g., if it knows which regsiters are free); otherwise
|
|
// an arbitrary one will be chosen and spilled by the copy instructions.
|
|
//
|
|
bool regTypeNeedsScratchReg(int RegType,
|
|
int& scratchRegClassId) const;
|
|
|
|
void cpReg2RegMI(std::vector<MachineInstr*>& mvec,
|
|
unsigned SrcReg, unsigned DestReg,
|
|
int RegType) const;
|
|
|
|
void cpReg2MemMI(std::vector<MachineInstr*>& mvec,
|
|
unsigned SrcReg, unsigned DestPtrReg,
|
|
int Offset, int RegType, int scratchReg = -1) const;
|
|
|
|
void cpMem2RegMI(std::vector<MachineInstr*>& mvec,
|
|
unsigned SrcPtrReg, int Offset, unsigned DestReg,
|
|
int RegType, int scratchReg = -1) const;
|
|
|
|
void cpValue2Value(Value *Src, Value *Dest,
|
|
std::vector<MachineInstr*>& mvec) const;
|
|
|
|
// To see whether a register is a volatile (i.e., whehter it must be
|
|
// preserved acorss calls)
|
|
//
|
|
inline bool isRegVolatile(int RegClassID, int Reg) const {
|
|
return MachineRegClassArr[RegClassID]->isRegVolatile(Reg);
|
|
}
|
|
|
|
|
|
virtual unsigned getFramePointer() const;
|
|
virtual unsigned getStackPointer() const;
|
|
|
|
virtual int getInvalidRegNum() const {
|
|
return InvalidRegNum;
|
|
}
|
|
|
|
// This method inserts the caller saving code for call instructions
|
|
//
|
|
void insertCallerSavingCode(MachineInstr *MInst,
|
|
const BasicBlock *BB, PhyRegAlloc &PRA ) const;
|
|
};
|
|
|
|
|
|
|
|
|
|
//---------------------------------------------------------------------------
|
|
// class UltraSparcSchedInfo
|
|
//
|
|
// Purpose:
|
|
// Interface to instruction scheduling information for UltraSPARC.
|
|
// The parameter values above are based on UltraSPARC IIi.
|
|
//---------------------------------------------------------------------------
|
|
|
|
|
|
class UltraSparcSchedInfo: public MachineSchedInfo {
|
|
public:
|
|
UltraSparcSchedInfo(const TargetMachine &tgt);
|
|
protected:
|
|
virtual void initializeResources();
|
|
};
|
|
|
|
|
|
//---------------------------------------------------------------------------
|
|
// class UltraSparcFrameInfo
|
|
//
|
|
// Purpose:
|
|
// Interface to stack frame layout info for the UltraSPARC.
|
|
// Starting offsets for each area of the stack frame are aligned at
|
|
// a multiple of getStackFrameSizeAlignment().
|
|
//---------------------------------------------------------------------------
|
|
|
|
class UltraSparcFrameInfo: public MachineFrameInfo {
|
|
public:
|
|
UltraSparcFrameInfo(const TargetMachine &tgt) : MachineFrameInfo(tgt) {}
|
|
|
|
public:
|
|
int getStackFrameSizeAlignment() const { return StackFrameSizeAlignment;}
|
|
int getMinStackFrameSize() const { return MinStackFrameSize; }
|
|
int getNumFixedOutgoingArgs() const { return NumFixedOutgoingArgs; }
|
|
int getSizeOfEachArgOnStack() const { return SizeOfEachArgOnStack; }
|
|
bool argsOnStackHaveFixedSize() const { return true; }
|
|
|
|
//
|
|
// These methods compute offsets using the frame contents for a
|
|
// particular function. The frame contents are obtained from the
|
|
// MachineCodeInfoForMethod object for the given function.
|
|
//
|
|
int getFirstIncomingArgOffset (MachineCodeForMethod& mcInfo,
|
|
bool& growUp) const
|
|
{
|
|
growUp = true; // arguments area grows upwards
|
|
return FirstIncomingArgOffsetFromFP;
|
|
}
|
|
int getFirstOutgoingArgOffset (MachineCodeForMethod& mcInfo,
|
|
bool& growUp) const
|
|
{
|
|
growUp = true; // arguments area grows upwards
|
|
return FirstOutgoingArgOffsetFromSP;
|
|
}
|
|
int getFirstOptionalOutgoingArgOffset(MachineCodeForMethod& mcInfo,
|
|
bool& growUp)const
|
|
{
|
|
growUp = true; // arguments area grows upwards
|
|
return FirstOptionalOutgoingArgOffsetFromSP;
|
|
}
|
|
|
|
int getFirstAutomaticVarOffset (MachineCodeForMethod& mcInfo,
|
|
bool& growUp) const;
|
|
int getRegSpillAreaOffset (MachineCodeForMethod& mcInfo,
|
|
bool& growUp) const;
|
|
int getTmpAreaOffset (MachineCodeForMethod& mcInfo,
|
|
bool& growUp) const;
|
|
int getDynamicAreaOffset (MachineCodeForMethod& mcInfo,
|
|
bool& growUp) const;
|
|
|
|
//
|
|
// These methods specify the base register used for each stack area
|
|
// (generally FP or SP)
|
|
//
|
|
virtual int getIncomingArgBaseRegNum() const {
|
|
return (int) target.getRegInfo().getFramePointer();
|
|
}
|
|
virtual int getOutgoingArgBaseRegNum() const {
|
|
return (int) target.getRegInfo().getStackPointer();
|
|
}
|
|
virtual int getOptionalOutgoingArgBaseRegNum() const {
|
|
return (int) target.getRegInfo().getStackPointer();
|
|
}
|
|
virtual int getAutomaticVarBaseRegNum() const {
|
|
return (int) target.getRegInfo().getFramePointer();
|
|
}
|
|
virtual int getRegSpillAreaBaseRegNum() const {
|
|
return (int) target.getRegInfo().getFramePointer();
|
|
}
|
|
virtual int getDynamicAreaBaseRegNum() const {
|
|
return (int) target.getRegInfo().getStackPointer();
|
|
}
|
|
|
|
private:
|
|
// All stack addresses must be offset by 0x7ff (2047) on Sparc V9.
|
|
static const int OFFSET = (int) 0x7ff;
|
|
static const int StackFrameSizeAlignment = 16;
|
|
static const int MinStackFrameSize = 176;
|
|
static const int NumFixedOutgoingArgs = 6;
|
|
static const int SizeOfEachArgOnStack = 8;
|
|
static const int StaticAreaOffsetFromFP = 0 + OFFSET;
|
|
static const int FirstIncomingArgOffsetFromFP = 128 + OFFSET;
|
|
static const int FirstOptionalIncomingArgOffsetFromFP = 176 + OFFSET;
|
|
static const int FirstOutgoingArgOffsetFromSP = 128 + OFFSET;
|
|
static const int FirstOptionalOutgoingArgOffsetFromSP = 176 + OFFSET;
|
|
};
|
|
|
|
|
|
//---------------------------------------------------------------------------
|
|
// class UltraSparcCacheInfo
|
|
//
|
|
// Purpose:
|
|
// Interface to cache parameters for the UltraSPARC.
|
|
// Just use defaults for now.
|
|
//---------------------------------------------------------------------------
|
|
|
|
class UltraSparcCacheInfo: public MachineCacheInfo {
|
|
public:
|
|
UltraSparcCacheInfo(const TargetMachine &T) : MachineCacheInfo(T) {}
|
|
};
|
|
|
|
|
|
//---------------------------------------------------------------------------
|
|
// class UltraSparcMachine
|
|
//
|
|
// Purpose:
|
|
// Primary interface to machine description for the UltraSPARC.
|
|
// Primarily just initializes machine-dependent parameters in
|
|
// class TargetMachine, and creates machine-dependent subclasses
|
|
// for classes such as InstrInfo, SchedInfo and RegInfo.
|
|
//---------------------------------------------------------------------------
|
|
|
|
class UltraSparc : public TargetMachine {
|
|
private:
|
|
UltraSparcInstrInfo instrInfo;
|
|
UltraSparcSchedInfo schedInfo;
|
|
UltraSparcRegInfo regInfo;
|
|
UltraSparcFrameInfo frameInfo;
|
|
UltraSparcCacheInfo cacheInfo;
|
|
public:
|
|
UltraSparc();
|
|
|
|
virtual const MachineInstrInfo &getInstrInfo() const { return instrInfo; }
|
|
virtual const MachineSchedInfo &getSchedInfo() const { return schedInfo; }
|
|
virtual const MachineRegInfo &getRegInfo() const { return regInfo; }
|
|
virtual const MachineFrameInfo &getFrameInfo() const { return frameInfo; }
|
|
virtual const MachineCacheInfo &getCacheInfo() const { return cacheInfo; }
|
|
|
|
//
|
|
// addPassesToEmitAssembly - Add passes to the specified pass manager to get
|
|
// assembly langage code emited. For sparc, we have to do ...
|
|
//
|
|
virtual void addPassesToEmitAssembly(PassManager &PM, std::ostream &Out);
|
|
|
|
private:
|
|
Pass *getFunctionAsmPrinterPass(PassManager &PM, std::ostream &Out);
|
|
Pass *getModuleAsmPrinterPass(PassManager &PM, std::ostream &Out);
|
|
Pass *getEmitBytecodeToAsmPass(std::ostream &Out);
|
|
};
|
|
|
|
#endif
|