mirror of
https://github.com/c64scene-ar/llvm-6502.git
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for a VM instruction. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@220 91177308-0d34-0410-b5e6-96231b3b80d8
57 lines
1.6 KiB
C++
57 lines
1.6 KiB
C++
//===-- Instruction.cpp - Implement the Instruction class --------*- C++ -*--=//
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//
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// This file implements the Instruction class for the VMCore library.
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//
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//===----------------------------------------------------------------------===//
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#include "llvm/Instruction.h"
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#include "llvm/BasicBlock.h"
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#include "llvm/Method.h"
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#include "llvm/SymbolTable.h"
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#include "llvm/Codegen/MachineInstr.h"
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Instruction::Instruction(const Type *ty, unsigned it, const string &Name)
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: User(ty, Value::InstructionVal, Name),
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machineInstrVec(new MachineCodeForVMInstr)
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{
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Parent = 0;
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iType = it;
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}
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Instruction::~Instruction() {
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assert(getParent() == 0 && "Instruction still embedded in basic block!");
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delete machineInstrVec;
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}
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// Specialize setName to take care of symbol table majik
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void Instruction::setName(const string &name) {
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BasicBlock *P = 0; Method *PP = 0;
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if ((P = getParent()) && (PP = P->getParent()) && hasName())
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PP->getSymbolTable()->remove(this);
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Value::setName(name);
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if (PP && hasName()) PP->getSymbolTableSure()->insert(this);
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}
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void
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Instruction::addMachineInstruction(MachineInstr* minstr)
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{
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machineInstrVec->push_back(minstr);
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}
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// Dont make this inline because you would need to include
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// MachineInstr.h in Instruction.h, which creates a circular
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// sequence of forward declarations. Trying to fix that will
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// cause a serious circularity in link order.
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//
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const vector<Value*>&
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Instruction::getTempValuesForMachineCode() const
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{
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return machineInstrVec->getTempValues();
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}
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void
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Instruction::dropAllReferences() {
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machineInstrVec->dropAllReferences();
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User::dropAllReferences();
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}
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