//
// Methods common to all machine instructions.
//
-// FIXME: Now that MachineInstrs have parent pointers, they should always
-// print themselves using their MachineFunction's TargetMachine.
-//
//===----------------------------------------------------------------------===//
#include "llvm/CodeGen/MachineInstr.h"
#include "llvm/CodeGen/MachineFunction.h"
-#include "llvm/Value.h"
#include "llvm/Target/TargetMachine.h"
#include "llvm/Target/TargetInstrInfo.h"
#include "llvm/Target/MRegisterInfo.h"
extern const TargetInstrDescriptor *TargetInstrDescriptors;
}
-/// MachineInstr ctor - This constructor only does a _reserve_ of the operands,
-/// not a resize for them. It is expected that if you use this that you call
-/// add* methods below to fill up the operands, instead of the Set methods.
-/// Eventually, the "resizing" ctors will be phased out.
-///
-MachineInstr::MachineInstr(short opcode, unsigned numOperands, bool XX, bool YY)
- : Opcode(opcode), parent(0) {
- operands.reserve(numOperands);
+/// MachineInstr ctor - This constructor creates a dummy MachineInstr with
+/// opcode 0 and no operands.
+MachineInstr::MachineInstr()
+ : Opcode(0), NumImplicitOps(0), parent(0) {
+ // Make sure that we get added to a machine basicblock
+ LeakDetector::addGarbageObject(this);
+}
+
+void MachineInstr::addImplicitDefUseOperands(const TargetInstrDescriptor &TID) {
+ if (TID.ImplicitDefs)
+ for (const unsigned *ImpDefs = TID.ImplicitDefs; *ImpDefs; ++ImpDefs) {
+ MachineOperand Op;
+ Op.opType = MachineOperand::MO_Register;
+ Op.IsDef = true;
+ Op.IsImp = true;
+ Op.IsKill = false;
+ Op.IsDead = false;
+ Op.contents.RegNo = *ImpDefs;
+ Op.offset = 0;
+ Operands.push_back(Op);
+ }
+ if (TID.ImplicitUses)
+ for (const unsigned *ImpUses = TID.ImplicitUses; *ImpUses; ++ImpUses) {
+ MachineOperand Op;
+ Op.opType = MachineOperand::MO_Register;
+ Op.IsDef = false;
+ Op.IsImp = true;
+ Op.IsKill = false;
+ Op.IsDead = false;
+ Op.contents.RegNo = *ImpUses;
+ Op.offset = 0;
+ Operands.push_back(Op);
+ }
+}
+
+/// MachineInstr ctor - This constructor create a MachineInstr and add the
+/// implicit operands. It reserves space for number of operands specified by
+/// TargetInstrDescriptor or the numOperands if it is not zero. (for
+/// instructions with variable number of operands).
+MachineInstr::MachineInstr(const TargetInstrDescriptor &TID)
+ : Opcode(TID.Opcode), NumImplicitOps(0), parent(0) {
+ if (TID.ImplicitDefs)
+ for (const unsigned *ImpDefs = TID.ImplicitDefs; *ImpDefs; ++ImpDefs)
+ NumImplicitOps++;
+ if (TID.ImplicitUses)
+ for (const unsigned *ImpUses = TID.ImplicitUses; *ImpUses; ++ImpUses)
+ NumImplicitOps++;
+ Operands.reserve(NumImplicitOps + TID.numOperands);
+ addImplicitDefUseOperands(TID);
// Make sure that we get added to a machine basicblock
LeakDetector::addGarbageObject(this);
}
/// MachineInstr ctor - Work exactly the same as the ctor above, except that the
/// MachineInstr is created and added to the end of the specified basic block.
///
-MachineInstr::MachineInstr(MachineBasicBlock *MBB, short opcode,
- unsigned numOperands)
- : Opcode(opcode), parent(0) {
+MachineInstr::MachineInstr(MachineBasicBlock *MBB,
+ const TargetInstrDescriptor &TID)
+ : Opcode(TID.Opcode), NumImplicitOps(0), parent(0) {
assert(MBB && "Cannot use inserting ctor with null basic block!");
- operands.reserve(numOperands);
+ if (TID.ImplicitDefs)
+ for (const unsigned *ImpDefs = TID.ImplicitDefs; *ImpDefs; ++ImpDefs)
+ NumImplicitOps++;
+ if (TID.ImplicitUses)
+ for (const unsigned *ImpUses = TID.ImplicitUses; *ImpUses; ++ImpUses)
+ NumImplicitOps++;
+ Operands.reserve(NumImplicitOps + TID.numOperands);
+ addImplicitDefUseOperands(TID);
// Make sure that we get added to a machine basicblock
LeakDetector::addGarbageObject(this);
MBB->push_back(this); // Add instruction to end of basic block!
///
MachineInstr::MachineInstr(const MachineInstr &MI) {
Opcode = MI.getOpcode();
- operands.reserve(MI.getNumOperands());
+ NumImplicitOps = MI.NumImplicitOps;
+ Operands.reserve(MI.getNumOperands());
// Add operands
- for (unsigned i = 0; i < MI.getNumOperands(); ++i)
- operands.push_back(MachineOperand(MI.getOperand(i)));
+ for (unsigned i = 0; i != MI.getNumOperands(); ++i)
+ Operands.push_back(MI.getOperand(i));
// Set parent, next, and prev to null
parent = 0;
LeakDetector::removeGarbageObject(this);
}
-/// clone - Create a copy of 'this' instruction that is identical in all ways
-/// except the following: the new instruction has no parent and it has no name
-///
-MachineInstr* MachineInstr::clone() const {
- return new MachineInstr(*this);
-}
-
/// removeFromParent - This method unlinks 'this' from the containing basic
/// block, and returns it, but does not delete it.
MachineInstr *MachineInstr::removeFromParent() {
/// OperandComplete - Return true if it's illegal to add a new operand
///
bool MachineInstr::OperandsComplete() const {
- int NumOperands = TargetInstrDescriptors[Opcode].numOperands;
- if (NumOperands >= 0 && getNumOperands() >= (unsigned)NumOperands)
+ unsigned short NumOperands = TargetInstrDescriptors[Opcode].numOperands;
+ if ((TargetInstrDescriptors[Opcode].Flags & M_VARIABLE_OPS) == 0 &&
+ getNumOperands()-NumImplicitOps >= NumOperands)
return true; // Broken: we have all the operands of this instruction!
return false;
}
-void
-MachineInstr::SetMachineOperandConst(unsigned i,
- MachineOperand::MachineOperandType opTy,
- int intValue) {
- assert(i < getNumOperands());
- operands[i].opType = opTy;
- operands[i].contents.immedVal = intValue;
- operands[i].extra.regNum = -1;
- operands[i].flags = 0;
-}
-
-void MachineInstr::SetMachineOperandReg(unsigned i, int regNum) {
- assert(i < getNumOperands());
-
- operands[i].opType = MachineOperand::MO_VirtualRegister;
- operands[i].contents.GV = NULL;
- operands[i].extra.regNum = regNum;
+/// isIdenticalTo - Return true if this operand is identical to the specified
+/// operand.
+bool MachineOperand::isIdenticalTo(const MachineOperand &Other) const {
+ if (getType() != Other.getType()) return false;
+
+ switch (getType()) {
+ default: assert(0 && "Unrecognized operand type");
+ case MachineOperand::MO_Register:
+ return getReg() == Other.getReg() && isDef() == Other.isDef();
+ case MachineOperand::MO_Immediate:
+ return getImm() == Other.getImm();
+ case MachineOperand::MO_MachineBasicBlock:
+ return getMBB() == Other.getMBB();
+ case MachineOperand::MO_FrameIndex:
+ return getFrameIndex() == Other.getFrameIndex();
+ case MachineOperand::MO_ConstantPoolIndex:
+ return getConstantPoolIndex() == Other.getConstantPoolIndex() &&
+ getOffset() == Other.getOffset();
+ case MachineOperand::MO_JumpTableIndex:
+ return getJumpTableIndex() == Other.getJumpTableIndex();
+ case MachineOperand::MO_GlobalAddress:
+ return getGlobal() == Other.getGlobal() && getOffset() == Other.getOffset();
+ case MachineOperand::MO_ExternalSymbol:
+ return !strcmp(getSymbolName(), Other.getSymbolName()) &&
+ getOffset() == Other.getOffset();
+ }
}
void MachineInstr::dump() const {
std::cerr << " " << *this;
}
-static inline std::ostream& OutputValue(std::ostream &os, const Value* val) {
- os << "(val ";
- os << (void*) val; // print address always
- if (val && val->hasName())
- os << " " << val->getName(); // print name also, if available
- os << ")";
- return os;
-}
-
static inline void OutputReg(std::ostream &os, unsigned RegNo,
const MRegisterInfo *MRI = 0) {
if (!RegNo || MRegisterInfo::isPhysicalRegister(RegNo)) {
if (TM) MRI = TM->getRegisterInfo();
switch (MO.getType()) {
- case MachineOperand::MO_VirtualRegister:
+ case MachineOperand::MO_Register:
OutputReg(OS, MO.getReg(), MRI);
break;
- case MachineOperand::MO_SignExtendedImmed:
- OS << (long)MO.getImmedValue();
- break;
- case MachineOperand::MO_UnextendedImmed:
- OS << (long)MO.getImmedValue();
+ case MachineOperand::MO_Immediate:
+ OS << MO.getImmedValue();
break;
case MachineOperand::MO_MachineBasicBlock:
OS << "mbb<"
unsigned StartOp = 0;
// Specialize printing if op#0 is definition
- if (getNumOperands() && getOperand(0).isDef() && !getOperand(0).isUse()) {
+ if (getNumOperands() && getOperand(0).isReg() && getOperand(0).isDef()) {
::print(getOperand(0), OS, TM);
OS << " = ";
++StartOp; // Don't print this operand again!
OS << " ";
::print(mop, OS, TM);
- if (mop.isDef())
- if (mop.isUse())
- OS << "<def&use>";
- else
- OS << "<def>";
+ if (mop.isReg()) {
+ if (mop.isDef() || mop.isKill() || mop.isDead() || mop.isImplicit()) {
+ OS << "<";
+ bool NeedComma = false;
+ if (mop.isImplicit()) {
+ OS << (mop.isDef() ? "imp-def" : "imp-use");
+ NeedComma = true;
+ } else if (mop.isDef()) {
+ OS << "def";
+ NeedComma = true;
+ }
+ if (mop.isKill() || mop.isDead()) {
+ if (NeedComma)
+ OS << ",";
+ if (mop.isKill())
+ OS << "kill";
+ if (mop.isDead())
+ OS << "dead";
+ }
+ OS << ">";
+ }
+ }
}
OS << "\n";
for (unsigned i = 0, N = MI.getNumOperands(); i < N; i++) {
os << "\t" << MI.getOperand(i);
- if (MI.getOperand(i).isDef())
- if (MI.getOperand(i).isUse())
- os << "<d&u>";
- else
- os << "<d>";
+ if (MI.getOperand(i).isReg() && MI.getOperand(i).isDef())
+ os << "<d>";
}
return os << "\n";
std::ostream &llvm::operator<<(std::ostream &OS, const MachineOperand &MO) {
switch (MO.getType()) {
- case MachineOperand::MO_VirtualRegister:
+ case MachineOperand::MO_Register:
OutputReg(OS, MO.getReg());
break;
- case MachineOperand::MO_SignExtendedImmed:
- OS << (long)MO.getImmedValue();
- break;
- case MachineOperand::MO_UnextendedImmed:
+ case MachineOperand::MO_Immediate:
OS << (long)MO.getImmedValue();
break;
case MachineOperand::MO_MachineBasicBlock:
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