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Adding support to clone MachineInstr

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13661 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Tanya Lattner
2004-05-23 19:35:12 +00:00
parent 8e0262f0ed
commit 466b534a57
2 changed files with 32 additions and 1 deletions
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19
lib/CodeGen/MachineInstr.cpp
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@ -69,11 +69,29 @@ MachineInstr::MachineInstr(MachineBasicBlock *MBB, short opcode,
MBB->push_back(this); // Add instruction to end of basic block!
}
///MachineInstr ctor - Copies MachineInstr arg exactly
MachineInstr::MachineInstr(const MachineInstr &MI) {
Opcode = MI.getOpcode();
numImplicitRefs = MI.getNumImplicitRefs();
//Add operands
for(unsigned i=0; i < MI.getNumOperands(); ++i)
operands.push_back(MachineOperand(MI.getOperand(i)));
}
MachineInstr::~MachineInstr()
{
LeakDetector::removeGarbageObject(this);
}
///clone - Create a copy of 'this' instruction that is identical in
///all ways except the following: The instruction has no parent The
///instruction has no name
MachineInstr* MachineInstr::clone() {
MachineInstr* newInst = new MachineInstr(*this);
}
/// OperandComplete - Return true if it's illegal to add a new operand
///
bool MachineInstr::OperandsComplete() const {
@ -93,6 +111,7 @@ void MachineInstr::replace(short opcode, unsigned numOperands) {
Opcode = opcode;
operands.clear();
operands.resize(numOperands, MachineOperand());
}
void MachineInstr::SetMachineOperandVal(unsigned i,