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Move register numbers out of "extra" into "contents". Other minor cleanup. 

llvm-svn: 28106
This commit is contained in:
Chris Lattner 2006-05-04 18:25:20 +00:00
parent 469647bf38
commit 6b18d20c73
1 changed files with 21 additions and 34 deletions
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55
llvm/include/llvm/CodeGen/MachineInstr.h
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@ -32,8 +32,6 @@ class GlobalValue;
template <typename T> struct ilist_traits;
template <typename T> struct ilist;
typedef short MachineOpCode;
//===----------------------------------------------------------------------===//
// class MachineOperand
//
@ -77,64 +75,53 @@ private:
int64_t immedVal; // Constant value for an explicit constant
MachineBasicBlock *MBB; // For MO_MachineBasicBlock type
const char *SymbolName; // For MO_ExternalSymbol type
unsigned RegNo; // For MO_Register number for an explicit register
} contents;
char flags; // see bit field definitions above
MachineOperandType opType:8; // Pack into 8 bits efficiently after flags.
union {
int regNum; // register number for an explicit register
int offset; // Offset to address of global or external, only
// valid for MO_GlobalAddress, MO_ExternalSym
// and MO_ConstantPoolIndex
} extra;
void zeroContents() {
contents.immedVal = 0;
extra.offset = 0;
}
/// offset - Offset to address of global or external, only valid for
/// MO_GlobalAddress, MO_ExternalSym and MO_ConstantPoolIndex
int offset;
MachineOperand(int64_t ImmVal) : flags(0), opType(MO_Immediate) {
contents.immedVal = ImmVal;
extra.offset = 0;
offset = 0;
}
MachineOperand(unsigned Idx, MachineOperandType OpTy)
: flags(0), opType(OpTy) {
MachineOperand(unsigned Idx, MachineOperandType OpTy): flags(0), opType(OpTy){
contents.immedVal = Idx;
extra.offset = 0;
offset = 0;
}
MachineOperand(int Reg, MachineOperandType OpTy, UseType UseTy)
: flags(UseTy), opType(OpTy) {
zeroContents();
extra.regNum = Reg;
contents.RegNo = Reg;
offset = 0;
}
MachineOperand(GlobalValue *V, int Offset = 0)
: flags(MachineOperand::Use), opType(MachineOperand::MO_GlobalAddress) {
contents.GV = V;
extra.offset = Offset;
offset = Offset;
}
MachineOperand(MachineBasicBlock *mbb)
: flags(0), opType(MO_MachineBasicBlock) {
zeroContents ();
contents.MBB = mbb;
offset = 0;
}
MachineOperand(const char *SymName, int Offset)
: flags(0), opType(MO_ExternalSymbol) {
zeroContents ();
contents.SymbolName = SymName;
extra.offset = Offset;
offset = Offset;
}
public:
MachineOperand(const MachineOperand &M)
: flags(M.flags), opType(M.opType) {
zeroContents ();
contents = M.contents;
extra = M.extra;
MachineOperand(const MachineOperand &M) {
*this = M;
}
~MachineOperand() {}
@ -143,7 +130,7 @@ public:
contents = MO.contents;
flags = MO.flags;
opType = MO.opType;
extra = MO.extra;
offset = MO.offset;
return *this;
}
@ -197,7 +184,7 @@ public:
int getOffset() const {
assert((isGlobalAddress() || isExternalSymbol() || isConstantPoolIndex()) &&
"Wrong MachineOperand accessor");
return extra.offset;
return offset;
}
const char *getSymbolName() const {
assert(isExternalSymbol() && "Wrong MachineOperand accessor");
@ -216,14 +203,14 @@ public:
///
unsigned getReg() const {
assert(isRegister() && "This is not a register operand!");
return extra.regNum;
return contents.RegNo;
}
/// MachineOperand mutators.
///
void setReg(unsigned Reg) {
assert(isRegister() && "This is not a register operand!");
extra.regNum = Reg;
contents.RegNo = Reg;
}
void setImmedValue(int64_t immVal) {
@ -235,7 +222,7 @@ public:
assert((isGlobalAddress() || isExternalSymbol() || isConstantPoolIndex() ||
isJumpTableIndex()) &&
"Wrong MachineOperand accessor");
extra.offset = Offset;
offset = Offset;
}
/// ChangeToImmediate - Replace this operand with a new immediate operand of
@ -251,7 +238,7 @@ public:
/// the setReg method should be used.
void ChangeToRegister(unsigned Reg) {
opType = MO_Register;
extra.regNum = Reg;
contents.RegNo = Reg;
}
friend std::ostream& operator<<(std::ostream& os, const MachineOperand& mop);