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#include <willow/IR/BasicBlock.h>
namespace willow {
void BasicBlock::push_back(Instruction &inst) {
assert(!inst.hasParent() && "Instruction is already parented");
body.push_back(inst);
inst.setParent(this);
}
void BasicBlock::push_front(Instruction &inst) {
assert(!inst.hasParent() && "Instruction is already parented");
body.push_front(inst);
inst.setParent(this);
}
BasicBlock::Iterator BasicBlock::insert(Iterator pos, Instruction &inst) {
assert(!inst.hasParent() && "Instruction is already parented");
auto it = body.insert(pos, inst);
inst.setParent(this);
return it;
}
BasicBlock::Iterator BasicBlock::erase(BasicBlock::Iterator pos) {
Instruction &I = *pos;
I.setParent(nullptr);
return body.erase(pos);
}
BasicBlock::Iterator BasicBlock::eraseAndDelete(BasicBlock::Iterator pos) {
Instruction &inst = *pos;
pos->setParent(nullptr);
auto it = body.erase(pos);
delete &inst;
return it;
}
void BasicBlock::addPred(BasicBlock *bb) {
auto [it, inserted] = predecessors.try_emplace(bb, 1);
if (!inserted)
it->second += 1;
}
void BasicBlock::delPred(BasicBlock *bb) {
auto it = preds().find(bb);
it->second -= 1;
if (it->second <= 0)
preds().erase(it);
}
} // namespace willow
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