void RA::processInactiveIntervals(unsigned CurPoint)
{
DEBUG(std::cerr << "\tprocessing inactive intervals:\n");
+
for (unsigned i = 0, e = inactive_.size(); i != e; ++i) {
LiveInterval *Interval = inactive_[i].first;
LiveInterval::iterator IntervalPos = inactive_[i].second;
spillWeights_.assign(mri_->getNumRegs(), 0.0);
+ unsigned StartPosition = cur->beginNumber();
+
// for each interval in active update spill weights
for (IntervalPtrs::const_iterator i = active_.begin(), e = active_.end();
i != e; ++i) {
// For every interval in fixed we overlap with, mark the register as not free
// and update spill weights.
- for (IntervalPtrs::const_iterator i = fixed_.begin(),
- e = fixed_.end(); i != e; ++i)
- if (cur->overlapsFrom(*i->first, i->second)) {
- unsigned reg = i->first->reg;
+ for (unsigned i = 0, e = fixed_.size(); i != e; ++i) {
+ IntervalPtr &IP = fixed_[i];
+ LiveInterval *I = IP.first;
+ LiveInterval::iterator II = I->advanceTo(IP.second, StartPosition);
+ IP.second = II;
+ if (cur->overlapsFrom(*I, II)) {
+ unsigned reg = I->reg;
prt_->addRegUse(reg);
- updateSpillWeights(reg, i->first->weight);
+ updateSpillWeights(reg, I->weight);
}
+ }
unsigned physReg = getFreePhysReg(cur);
// restore the physical register tracker