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Numerous changes in interface to class SparcRegInfo corresponding to

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changes in class MachineRegInfo (see MachineRegInfo.h for details).

Added {LD,ST}[X]FSR instructions.

llvm-svn: 2839
This commit is contained in:
Vikram S. Adve 2002-07-08 23:34:10 +00:00
parent 35bc4cb020
commit 901578090d
1 changed files with 78 additions and 75 deletions
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153
lib/Target/Sparc/SparcInternals.h
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@ -98,9 +98,9 @@ public:
bool ignore;
if (this->maxImmedConstant(opCode, ignore) != 0)
{
assert(! this->isStore((MachineOpCode) STB - 1)); // first store is STB
assert(! this->isStore((MachineOpCode) STD + 1)); // last store is STD
return (opCode >= STB && opCode <= STD)? 2 : 1;
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;
@ -247,21 +247,13 @@ class UltraSparcRegInfo : public MachineRegInfo {
// function args and return values etc.) with specific hardware registers
// as required. See SparcRegInfo.cpp for the implementation.
//
void setCallOrRetArgCol(LiveRange *LR, unsigned RegNo,
const MachineInstr *MI,
std::hash_map<const MachineInstr *,
AddedInstrns *> &AIMap) const;
MachineInstr *getCopy2RegMI(const Value *SrcVal, unsigned Reg,
unsigned RegClassID) const;
void suggestReg4RetAddr(const MachineInstr *RetMI,
void suggestReg4RetAddr(MachineInstr *RetMI,
LiveRangeInfo &LRI) const;
void suggestReg4CallAddr(const MachineInstr *CallMI, LiveRangeInfo &LRI,
void suggestReg4CallAddr(MachineInstr *CallMI, LiveRangeInfo &LRI,
std::vector<RegClass *> RCList) const;
void InitializeOutgoingArg(const MachineInstr* CallMI, AddedInstrns *CallAI,
void InitializeOutgoingArg(MachineInstr* CallMI, AddedInstrns *CallAI,
PhyRegAlloc &PRA, LiveRange* LR,
unsigned regType, unsigned RegClassID,
int UniArgReg, unsigned int argNo,
@ -269,18 +261,14 @@ class UltraSparcRegInfo : public MachineRegInfo {
const;
// The following 4 methods are used to find the RegType (see enum above)
// of a LiveRange, Value and using the unified RegClassID
// 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 reg) const;
// The following methods are used to generate copy instructions to move
// data between condition code registers
//
MachineInstr *cpCCR2IntMI(unsigned IntReg) const;
MachineInstr *cpInt2CCRMI(unsigned IntReg) const;
int getRegType(int unifiedRegNum) const;
// Used to generate a copy instruction based on the register class of
// value.
@ -324,28 +312,8 @@ public:
// To find the register class used for a specified Type
//
inline unsigned getRegClassIDOfType(const Type *type,
bool isCCReg = false) const {
Type::PrimitiveID ty = type->getPrimitiveID();
unsigned res;
// FIXME: Comparing types like this isn't very safe...
if ((ty && ty <= Type::LongTyID) || (ty == Type::LabelTyID) ||
(ty == Type::FunctionTyID) || (ty == Type::PointerTyID) )
res = IntRegClassID; // sparc int reg (ty=0: void)
else if (ty <= Type::DoubleTyID)
res = FloatRegClassID; // sparc float reg class
else {
//std::cerr << "TypeID: " << ty << "\n";
assert(0 && "Cannot resolve register class for type");
return 0;
}
if(isCCReg)
return res + 2; // corresponidng condition code regiser
else
return res;
}
unsigned getRegClassIDOfType(const Type *type,
bool isCCReg = false) const;
// To find the register class of a Value
//
@ -354,8 +322,11 @@ public:
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
//
@ -385,51 +356,71 @@ public:
void suggestRegs4MethodArgs(const Function *Meth,
LiveRangeInfo& LRI) const;
void suggestRegs4CallArgs(const MachineInstr *CallMI,
void suggestRegs4CallArgs(MachineInstr *CallMI,
LiveRangeInfo& LRI,
std::vector<RegClass *> RCL) const;
void suggestReg4RetValue(const MachineInstr *RetMI,
void suggestReg4RetValue(MachineInstr *RetMI,
LiveRangeInfo& LRI) const;
void colorMethodArgs(const Function *Meth, LiveRangeInfo &LRI,
AddedInstrns *FirstAI) const;
void colorCallArgs(const MachineInstr *CallMI, LiveRangeInfo &LRI,
void colorCallArgs(MachineInstr *CallMI, LiveRangeInfo &LRI,
AddedInstrns *CallAI, PhyRegAlloc &PRA,
const BasicBlock *BB) const;
void colorRetValue(const MachineInstr *RetI, LiveRangeInfo& LRI,
void colorRetValue(MachineInstr *RetI, LiveRangeInfo& LRI,
AddedInstrns *RetAI) const;
// method used for printing a register for debugging purposes
//
static void printReg(const LiveRange *LR);
// this method provides a unique number for each register
// 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.
//
inline int getUnifiedRegNum(int RegClassID, int reg) const {
if( RegClassID == IntRegClassID && reg < 32 )
// 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 && reg < 64)
}
else if (regClassID == FloatRegClassID) {
assert(reg < 64 && "Invalid reg. number");
return reg + 32; // we have 32 int regs
else if( RegClassID == FloatCCRegClassID && reg < 4)
}
else if (regClassID == FloatCCRegClassID) {
assert(reg < 4 && "Invalid reg. number");
return reg + 32 + 64; // 32 int, 64 float
else if( RegClassID == IntCCRegClassID )
return reg + 4+ 32 + 64; // only int cc reg
else if (reg==InvalidRegNum)
}
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 or reg number");
assert(0 && "Invalid register class");
return 0;
}
// given the unified register number, this gives the name
// for generating assembly code or debugging.
// 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;
@ -453,14 +444,26 @@ public:
// The following methods are used to generate "copy" machine instructions
// for an architecture.
//
void cpReg2RegMI(unsigned SrcReg, unsigned DestReg,
int RegType, std::vector<MachineInstr*>& mvec) const;
void cpReg2MemMI(unsigned SrcReg, unsigned DestPtrReg,
int Offset, int RegType, std::vector<MachineInstr*>& mvec) const;
// 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 cpMem2RegMI(unsigned SrcPtrReg, int Offset, unsigned DestReg,
int RegType, std::vector<MachineInstr*>& mvec) 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;
@ -482,7 +485,7 @@ public:
// This method inserts the caller saving code for call instructions
//
void insertCallerSavingCode(const MachineInstr *MInst,
void insertCallerSavingCode(MachineInstr *MInst,
const BasicBlock *BB, PhyRegAlloc &PRA ) const;
};