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#include "mkql_reduce.h"
#include <yql/essentials/minikql/computation/mkql_computation_node_holders.h>
#include <yql/essentials/minikql/computation/mkql_computation_node_codegen.h> // Y_IGNORE
#include <yql/essentials/minikql/mkql_node_cast.h>
namespace NKikimr {
namespace NMiniKQL {
namespace {
template<bool IsStream>
class TReduceWrapper : public TMutableCodegeneratorRootNode<TReduceWrapper<IsStream>> {
typedef TMutableCodegeneratorRootNode<TReduceWrapper<IsStream>> TBaseComputation;
public:
TReduceWrapper(TComputationMutables& mutables, EValueRepresentation kind, IComputationNode* list, IComputationExternalNode* item, IComputationExternalNode* state1,
IComputationNode* newState1, IComputationNode* newState2,
IComputationNode* initialState1, IComputationExternalNode* itemState2, IComputationExternalNode* state3,
IComputationNode* newState3, IComputationNode* initialState3)
: TBaseComputation(mutables, kind)
, List(list)
, Item(item)
, State1(state1)
, NewState1(newState1)
, NewState2(newState2)
, InitialState1(initialState1)
, ItemState2(itemState2)
, State3(state3)
, NewState3(newState3)
, InitialState3(initialState3)
{
}
NUdf::TUnboxedValuePod DoCalculate(TComputationContext& compCtx) const {
State1->SetValue(compCtx, InitialState1->GetValue(compCtx));
State3->SetValue(compCtx, InitialState3->GetValue(compCtx));
TThresher<IsStream>::DoForEachItem(List->GetValue(compCtx),
[this, &compCtx] (NUdf::TUnboxedValue&& item) {
Item->SetValue(compCtx, std::move(item));
State1->SetValue(compCtx, NewState1->GetValue(compCtx));
}
);
ItemState2->SetValue(compCtx, NewState2->GetValue(compCtx));
return NewState3->GetValue(compCtx).Release();
}
#ifndef MKQL_DISABLE_CODEGEN
Value* DoGenerateGetValue(const TCodegenContext& ctx, BasicBlock*& block) const {
auto &context = ctx.Codegen.GetContext();
const auto codegenItem = dynamic_cast<ICodegeneratorExternalNode*>(Item);
const auto codegenState1 = dynamic_cast<ICodegeneratorExternalNode*>(State1);
const auto codegenItemState2 = dynamic_cast<ICodegeneratorExternalNode*>(ItemState2);
const auto codegenState3 = dynamic_cast<ICodegeneratorExternalNode*>(State3);
MKQL_ENSURE(codegenState1, "State1 must be codegenerator node.");
MKQL_ENSURE(codegenState3, "State3 must be codegenerator node.");
MKQL_ENSURE(codegenItem, "Item must be codegenerator node.");
MKQL_ENSURE(codegenItemState2, "ItemState2 must be codegenerator node.");
const auto valueType = Type::getInt128Ty(context);
const auto init1 = GetNodeValue(InitialState1, ctx, block);
codegenState1->CreateSetValue(ctx, block, init1);
const auto init3 = GetNodeValue(InitialState3, ctx, block);
codegenState3->CreateSetValue(ctx, block, init3);
const auto list = GetNodeValue(List, ctx, block);
const auto itemPtr = *this->Stateless || ctx.AlwaysInline ?
new AllocaInst(valueType, 0U, "item_ptr", &ctx.Func->getEntryBlock().back()):
new AllocaInst(valueType, 0U, "item_ptr", block);
new StoreInst(ConstantInt::get(valueType, 0), itemPtr, block);
const auto loop = BasicBlock::Create(context, "loop", ctx.Func);
const auto good = BasicBlock::Create(context, "good", ctx.Func);
const auto done = BasicBlock::Create(context, "done", ctx.Func);
if constexpr (IsStream) {
BranchInst::Create(loop, block);
block = loop;
const auto status = CallBoxedValueVirtualMethod<NUdf::TBoxedValueAccessor::EMethod::Fetch>(Type::getInt32Ty(context), list, ctx.Codegen, block, itemPtr);
const auto icmp = CmpInst::Create(Instruction::ICmp, ICmpInst::ICMP_NE, status, ConstantInt::get(status->getType(), static_cast<ui32>(NUdf::EFetchStatus::Ok)), "cond", block);
BranchInst::Create(done, good, icmp, block);
block = good;
codegenItem->CreateSetValue(ctx, block, itemPtr);
const auto newState1 = GetNodeValue(NewState1, ctx, block);
codegenState1->CreateSetValue(ctx, block, newState1);
BranchInst::Create(loop, block);
block = done;
} else {
const auto iterPtr = *this->Stateless || ctx.AlwaysInline ?
new AllocaInst(valueType, 0U, "iter_ptr", &ctx.Func->getEntryBlock().back()):
new AllocaInst(valueType, 0U, "iter_ptr", block);
CallBoxedValueVirtualMethod<NUdf::TBoxedValueAccessor::EMethod::GetListIterator>(iterPtr, list, ctx.Codegen, block);
const auto iter = new LoadInst(valueType, iterPtr, "iter", block);
BranchInst::Create(loop, block);
block = loop;
const auto status = CallBoxedValueVirtualMethod<NUdf::TBoxedValueAccessor::EMethod::Next>(Type::getInt1Ty(context), iter, ctx.Codegen, block, itemPtr);
const auto icmp = CmpInst::Create(Instruction::ICmp, ICmpInst::ICMP_EQ, status, ConstantInt::getFalse(context), "cond", block);
BranchInst::Create(done, good, icmp, block);
block = good;
codegenItem->CreateSetValue(ctx, block, itemPtr);
const auto newState1 = GetNodeValue(NewState1, ctx, block);
codegenState1->CreateSetValue(ctx, block, newState1);
BranchInst::Create(loop, block);
block = done;
UnRefBoxed(iter, ctx, block);
}
const auto newState2 = GetNodeValue(NewState2, ctx, block);
codegenItemState2->CreateSetValue(ctx, block, newState2);
const auto newState3 = GetNodeValue(NewState3, ctx, block);
return newState3;
}
#endif
private:
void RegisterDependencies() const final {
this->DependsOn(List);
this->DependsOn(InitialState1);
this->DependsOn(InitialState3);
this->DependsOn(NewState1);
this->DependsOn(NewState2);
this->DependsOn(NewState3);
this->Own(Item);
this->Own(State1);
this->Own(ItemState2);
this->Own(State3);
}
IComputationNode* const List;
IComputationExternalNode* const Item;
IComputationExternalNode* const State1;
IComputationNode* const NewState1;
IComputationNode* const NewState2;
IComputationNode* const InitialState1;
IComputationExternalNode* const ItemState2;
IComputationExternalNode* const State3;
IComputationNode* const NewState3;
IComputationNode* const InitialState3;
};
}
IComputationNode* WrapReduce(TCallable& callable, const TComputationNodeFactoryContext& ctx) {
MKQL_ENSURE(callable.GetInputsCount() == 10, "Expected 10 args");
auto list = LocateNode(ctx.NodeLocator, callable, 0);
auto initialState1 = LocateNode(ctx.NodeLocator, callable, 1);
auto initialState3 = LocateNode(ctx.NodeLocator, callable, 2);
auto newState1 = LocateNode(ctx.NodeLocator, callable, 5);
auto newState2 = LocateNode(ctx.NodeLocator, callable, 6);
auto newState3 = LocateNode(ctx.NodeLocator, callable, 9);
auto itemArg = LocateExternalNode(ctx.NodeLocator, callable, 3);
auto state1NodeArg = LocateExternalNode(ctx.NodeLocator, callable, 4);
auto itemState2Arg = LocateExternalNode(ctx.NodeLocator, callable, 7);
auto state3NodeArg = LocateExternalNode(ctx.NodeLocator, callable, 8);
const auto kind = GetValueRepresentation(callable.GetType()->GetReturnType());
if (callable.GetInput(0).GetStaticType()->IsStream()) {
return new TReduceWrapper<true>(ctx.Mutables, kind, list, itemArg, state1NodeArg, newState1, newState2,
initialState1, itemState2Arg, state3NodeArg, newState3, initialState3);
} else {
return new TReduceWrapper<false>(ctx.Mutables, kind, list, itemArg, state1NodeArg, newState1, newState2,
initialState1, itemState2Arg, state3NodeArg, newState3, initialState3);
}
}
}
}
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