// Iterate over the tuples in the sorter in batches/vectors of the given size
void Sorter::VectorizedIterate(
CodeGen &codegen, llvm::Value *sorter_ptr, uint32_t vector_size,
uint64_t offset, Sorter::VectorizedIterateCallback &callback) const {
llvm::Value *start_pos = codegen.Load(SorterProxy::tuples_start, sorter_ptr);
llvm::Value *num_tuples = NumTuples(codegen, sorter_ptr);
num_tuples = codegen->CreateTrunc(num_tuples, codegen.Int32Type());
if (offset != 0) {
start_pos = codegen->CreateConstInBoundsGEP1_32(codegen.CharPtrType(),
start_pos, offset);
num_tuples = codegen->CreateSub(num_tuples, codegen.Const32(offset));
}
lang::VectorizedLoop loop(codegen, num_tuples, vector_size, {});
{
// Current loop range
auto curr_range = loop.GetCurrentRange();
// Provide an accessor into the sorted space
SorterAccess sorter_access(*this, start_pos);
// Issue the callback
callback.ProcessEntries(codegen, curr_range.start, curr_range.end,
sorter_access);
// That's it
loop.LoopEnd(codegen, {});
}
}
llvm::Value *Sorter::GetNumberOfStoredTuples(CodeGen &codegen,
llvm::Value *sorter_ptr) const {
// TODO: util::Sorter has a function to handle this ...
llvm::Value *start_pos = GetStartPosition(codegen, sorter_ptr);
llvm::Value *end_pos = GetEndPosition(codegen, sorter_ptr);
llvm::Value *tuple_size =
codegen->CreateZExt(GetTupleSize(codegen), codegen.Int64Type());
llvm::Value *diff_bytes = codegen->CreatePtrDiff(end_pos, start_pos);
llvm::Value *num_tuples = codegen->CreateUDiv(diff_bytes, tuple_size);
return codegen->CreateTruncOrBitCast(num_tuples, codegen.Int32Type());
}
void RowBatch::Row::SetValidity(CodeGen &codegen, llvm::Value *valid) {
if (valid->getType() != codegen.BoolType()) {
std::string error_msg;
llvm::raw_string_ostream rso{error_msg};
rso << "Validity of row must be a boolean value. Received type: "
<< valid->getType();
throw Exception{error_msg};
}
if (output_tracker_ == nullptr) {
throw Exception{"You didn't provide an output tracker for the row!"};
}
// Append this row to the output
llvm::Value *delta = codegen->CreateZExt(valid, codegen.Int32Type());
output_tracker_->AppendRowToOutput(codegen, *this, delta);
}
void Varchar::GetTypeForMaterialization(CodeGen &codegen, llvm::Type *&val_type,
llvm::Type *&len_type) const {
val_type = codegen.CharPtrType();
len_type = codegen.Int32Type();
}
void Date::GetTypeForMaterialization(CodeGen &codegen, llvm::Type *&val_type,
llvm::Type *&len_type) const {
val_type = codegen.Int32Type();
len_type = nullptr;
}