6502/llvm-6502
1
0
Fork 0
mirror of https://github.com/c64scene-ar/llvm-6502.git synced 2024-07-19 03:29:22 +00:00
Code Issues Projects Releases Wiki Activity

Add ConvertConstantToIntType() to unify all constant handling

Browse Source 
that depends on machine register size.
Moved insertCallerSavingCode() to PhyRegAlloc and
moved isRegVolatile and modifiedByCall to TargetRegInfo: they are all
machine independent.  Remove several dead functions.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@7392 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Vikram S. Adve 2003-07-29 19:54:41 +00:00
parent 83d30c89e5
commit ada280faa9
1 changed files with 16 additions and 50 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

66
lib/Target/SparcV9/SparcV9Internals.h
View File

@ -21,7 +21,6 @@
class LiveRange;
class UltraSparc;
class PhyRegAlloc;
class Pass;
enum SparcInstrSchedClass {
@ -158,6 +157,19 @@ struct UltraSparcInstrInfo : public TargetInstrInfo {
//
virtual MachineOpCode getNOPOpCode() const { return V9::NOP; }
// Get the value of an integral constant in the form that must
// be put into the machine register. The specified constant is interpreted
// as (i.e., converted if necessary to) the specified destination type. The
// result is always returned as an uint64_t, since the representation of
// int64_t and uint64_t are identical. The argument can be any known const.
//
// isValidConstant is set to true if a valid constant was found.
//
virtual uint64_t ConvertConstantToIntType(const TargetMachine &target,
const Value *V,
const Type *destType,
bool &isValidConstant) const;
// 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.
@ -271,35 +283,9 @@ private:
void suggestReg4CallAddr(MachineInstr *CallMI, LiveRangeInfo &LRI) 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;
// Helper used by the all the getRegType() functions.
int getRegTypeForClassAndType(unsigned regClassID, const Type* type) 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;
public:
// 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
@ -382,16 +368,9 @@ public:
void suggestReg4RetValue(MachineInstr *RetMI,
LiveRangeInfo& LRI) const;
void colorMethodArgs(const Function *Meth, LiveRangeInfo &LRI,
AddedInstrns *FirstAI) const;
// This method inserts the caller saving code for call instructions
//
void insertCallerSavingCode(std::vector<MachineInstr*>& instrnsBefore,
std::vector<MachineInstr*>& instrnsAfter,
MachineInstr *CallMI,
const BasicBlock *BB,
PhyRegAlloc &PRA ) const;
void colorMethodArgs(const Function *Meth, LiveRangeInfo& LRI,
std::vector<MachineInstr*>& InstrnsBefore,
std::vector<MachineInstr*>& InstrnsAfter) const;
// method used for printing a register for debugging purposes
//
@ -440,17 +419,6 @@ public:
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);
}
inline bool modifiedByCall(int RegClassID, int Reg) const {
return MachineRegClassArr[RegClassID]->modifiedByCall(Reg);
}
// Get the register type for a register identified different ways.
// Note that getRegTypeForLR(LR) != getRegTypeForDataType(LR->getType())!
// The reg class of a LR depends both on the Value types in it and whether
@ -727,8 +695,6 @@ public:
Pass* getEmitBytecodeToAsmPass(std::ostream &Out);
};
int64_t GetConstantValueAsSignedInt(const Value *V, bool &isValidConstant);
Pass *getFunctionInfo(std::ostream &out);
#endif