calculated.set(preorder[MBB]);
for (SparseBitVector<128>::iterator I = tmp.begin(); I != tmp.end(); ++I) {
+ assert(rev_preorder.size() > *I && "Unknown block!");
+
MachineBasicBlock* SrcMBB = rev_preorder[*I];
- for (MachineBasicBlock::succ_iterator SI = SrcMBB->succ_begin();
- SI != SrcMBB->succ_end(); ++SI) {
+ for (MachineBasicBlock::succ_iterator SI = SrcMBB->succ_begin(),
+ SE = SrcMBB->succ_end(); SI != SE; ++SI) {
MachineBasicBlock* TgtMBB = *SI;
if (backedges.count(std::make_pair(SrcMBB, TgtMBB)) &&
computeBackedgeChain(mf, TgtMBB);
tv[MBB].set(preorder[TgtMBB]);
- tv[MBB] |= tv[TgtMBB];
+ SparseBitVector<128> right = tv[TgtMBB];
+ tv[MBB] |= right;
}
}
backedge_target.clear();
calculated.clear();
preorder.clear();
+ rev_preorder.clear();
+
+ rv.resize(mf.size());
+ tv.resize(mf.size());
+ preorder.resize(mf.size());
+ rev_preorder.reserve(mf.size());
MRI = &mf.getRegInfo();
MachineDominatorTree& MDT = getAnalysis<MachineDominatorTree>();
for (MachineBasicBlock::succ_iterator SI = (*POI)->succ_begin(),
SE = (*POI)->succ_end(); SI != SE; ++SI)
if (!backedges.count(std::make_pair(*POI, *SI)) && tv.count(*SI)) {
- SparseBitVector<128>& PBV = tv[*POI];
- PBV = tv[*SI];
+ SparseBitVector<128> right = tv[*SI];
+ tv[*POI] |= right;
}
for (po_iterator<MachineBasicBlock*> POI = po_begin(&*mf.begin()),