本文整理汇总了C++中Opnd::canBePlacedIn方法的典型用法代码示例。如果您正苦于以下问题：C++ Opnd::canBePlacedIn方法的具体用法？C++ Opnd::canBePlacedIn怎么用？C++ Opnd::canBePlacedIn使用的例子？那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类Opnd的用法示例。
在下文中一共展示了Opnd::canBePlacedIn方法的1个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C++代码示例。
示例1: handleInst
PeepHoleOpt::Changed PeepHoleOpt::handleInst(Inst* inst)
{
PeepHoleOpt::Changed temp;
// Local propagation
Inst::Opnds opnds(inst, Inst::OpndRole_All);
for (Inst::Opnds::iterator it=opnds.begin();it != opnds.end();it = opnds.next(it)) {
Opnd * opnd=inst->getOpnd(it);
U_32 roles=inst->getOpndRoles(it);
if (roles & Inst::OpndRole_Use) {
if ((roles & Inst::OpndRole_All & Inst::OpndRole_FromEncoder)
&& (roles & Inst::OpndRole_All & Inst::OpndRole_ForIterator)
&& (roles & Inst::OpndRole_Changeable) && ((roles & Inst::OpndRole_Def) == 0)
&& copyMap->has(opnd)) {
if (opnd->getType()->isUnmanagedPtr() && (*copyMap)[opnd]->getType()->isInteger())
(*copyMap)[opnd]->setType(opnd->getType());
inst->setOpnd(it, (*copyMap)[opnd]);
}
}
}
for (Inst::Opnds::iterator it = opnds.begin();it != opnds.end();it = opnds.next(it)) {
Opnd * opnd=inst->getOpnd(it);
U_32 roles=inst->getOpndRoles(it);
if (roles & Inst::OpndRole_Def) {
if (copyMap->has(opnd)) {
if (Log::isEnabled()) Log::out()<<"copy relation DELETED: " << opnd->getFirstId() << "<=" << (*copyMap)[opnd]->getFirstId() <<std::endl;
copyMap->erase(opnd);
}
tempSet->clear();
for(StlHashMap<Opnd*, Opnd*>::iterator iter=copyMap->begin();
iter!=copyMap->end();++iter)
if (iter->second == opnd) {
if (Log::isEnabled()) Log::out()<<"copy relation DELETED: " << iter->first->getFirstId() << "<=" << iter->second->getFirstId() <<std::endl;
tempSet->insert(iter->first);
}
for(StlSet<Opnd*>::iterator iter=tempSet->begin();
iter!=tempSet->end();++iter)
copyMap->erase(*iter);
}
}
if (inst->getMnemonic() == Mnemonic_MOV) {
Inst::Opnds opnds(inst, Inst::OpndRole_All);
Opnd * dst = NULL;
Opnd * src = NULL;
U_32 counterDef = 0;
U_32 counterUse = 0;
for (Inst::Opnds::iterator it=opnds.begin();it!=opnds.end();it=opnds.next(it)) {
Opnd * opnd = inst->getOpnd(it);
U_32 roles = inst->getOpndRoles(it);
if (roles & Inst::OpndRole_Def) {
counterDef++;
dst = opnd;
} else if (roles & Inst::OpndRole_Use) {
counterUse++;
src = opnd;
}
}
if ((counterDef == 1) && (counterUse == 1) && (!dst->hasAssignedPhysicalLocation())) {
bool kindsAreOk = true;
if(src->canBePlacedIn(OpndKind_FPReg) || dst->canBePlacedIn(OpndKind_FPReg)) {
Constraint srcConstr = src->getConstraint(Opnd::ConstraintKind_Calculated);
Constraint dstConstr = dst->getConstraint(Opnd::ConstraintKind_Calculated);
kindsAreOk = ! (srcConstr&dstConstr).isNull();
}
bool typeConvOk = src->getSize() == dst->getSize() && isTypeConversionAllowed(src, dst);
if (typeConvOk && kindsAreOk && ! src->isPlacedIn(OpndKind_Reg)) {
if (copyMap->has(src)) {
(*copyMap)[dst] = (*copyMap)[src];
if (Log::isEnabled()) Log::out()<<"copy relation INSERTED: " << dst->getFirstId() << "<=" << (*copyMap)[src]->getFirstId() <<std::endl;
} else {
(*copyMap)[dst] = src;
if (Log::isEnabled()) Log::out()<<"copy relation INSERTED: " << dst->getFirstId() << "<=" << src->getFirstId() <<std::endl;
}
}
}
}
if (inst->hasKind(Inst::Kind_PseudoInst) && inst->getKind() != Inst::Kind_CopyPseudoInst) {
return Changed_Nothing;
}
Mnemonic mnemonic = inst->getMnemonic();
switch(mnemonic) {
case Mnemonic_MOV:
return handleInst_MOV(inst);
case Mnemonic_CALL:
return handleInst_Call(inst);
case Mnemonic_ADD:
case Mnemonic_ADC:
case Mnemonic_SUB:
case Mnemonic_SBB:
//.........这里部分代码省略.........