void FunctionStaticSlicer::computeSC() {
for (inst_iterator I = inst_begin(fun), E = inst_end(fun); I != E; I++) {
const Instruction *i = &*I;
SuccList succList = getSuccList(i);
for (SuccList::const_iterator II = succList.begin(), EE = succList.end();
II != EE; II++)
computeSCi(i, *II);
}
}
/*
* Backward, Forward: get successors
*
*/
bool FunctionStaticSlicer::computeRCi(InsInfo *insInfoi) {
const Instruction *i = insInfoi->getIns();
bool changed = false;
SuccList succList = getSuccList(i);
SuccList::const_iterator I = succList.begin(), E = succList.end();
for (;I != E; I++)
changed |= computeRCi(insInfoi, getInsInfo(*I));
return changed;
}
static SuccList getSuccList(const Instruction *i) {
SuccList succList;
const BasicBlock *bb = i->getParent();
if (i != &bb->back()) {
BasicBlock::const_iterator I(i);
I++;
succList.push_back(&*I);
} else {
for (succ_const_iterator I = succ_begin(bb), E = succ_end(bb); I != E; I++)
succList.push_back(&(*I)->front());
}
return succList;
}
bool FunctionStaticSlicer::computeRCi(InsInfo *insInfoi) {
const Instruction *i = insInfoi->getIns();
bool changed = false;
#ifdef DEBUG_RC
errs() << " " << __func__ << ": " << i->getOpcodeName();
if (i->hasName())
errs() << " (" << i->getName() << ")";
errs() << '\n';
errs() << " DUMP: ";
i->print(errs());
errs() << '\n';
#endif
SuccList succList = getSuccList(i);
for (SuccList::const_iterator I = succList.begin(), E = succList.end();
I != E; I++)
changed |= computeRCi(insInfoi, getInsInfo(*I));
return changed;
}
