void LDSTBuffer::getStoreEntry(DInst *dinst)
{
I( dinst->getInst()->isStore() );
#ifdef LDSTBUFFER_IGNORE_DEPS
return;
#endif
EntryType::iterator sit = stores.find(calcWord(dinst));
if (sit != stores.end()) {
DInst *pdinst = sit->second;
I(pdinst->getInst()->isStore());
if (!pdinst->hasPending() && dinst->getContextId() == pdinst->getContextId())
pdinst->setDeadStore();
}
stores[calcWord(dinst)] = dinst;
}
void LDSTBuffer::getLoadEntry(DInst *dinst)
{
I(dinst->getInst()->isLoad());
#ifdef LDSTBUFFER_IGNORE_DEPS
return;
#endif
// LOAD
EntryType::iterator sit = stores.find(calcWord(dinst));
if (sit == stores.end())
return;
DInst *pdinst = sit->second;
I(pdinst->getInst()->isStore());
#if defined(TASKSCALAR) && !defined(TS_CAVA)
if (dinst->getVersionRef() != pdinst->getVersionRef())
return;
#else
if (dinst->getContextId() != pdinst->getContextId()) {
// FIXME2: In a context switch the same processor may have two different
// PIDs
// Different processor or window. Queue the instruction even if executed
dinst->setDepsAtRetire();
I(pdinst->getInst()->getAddr() != dinst->getInst()->getAddr());
pdinst->addFakeSrc(dinst);
GLOG(DEBUG2, "FORWARD pc=0x%x [addr=0x%x] (%p)-> pc=0x%x [addr=0x%x] (%p)"
,(int)pdinst->getInst()->getAddr() , (int)pdinst->getVaddr(), pdinst
,(int)dinst->getInst()->getAddr() , (int)dinst->getVaddr(), dinst);
return;
}
#endif
#ifndef LDSTQ_FWD
dinst->setLoadForwarded();
#endif
if (!pdinst->isExecuted()) {
I(pdinst->getInst()->getAddr() != dinst->getInst()->getAddr());
pdinst->addFakeSrc(dinst);
}
}
