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// Copyright 2016 the V8 project authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef V8_COMPILER_EFFECT_CONTROL_LINEARIZER_H_
#define V8_COMPILER_EFFECT_CONTROL_LINEARIZER_H_
#include "src/compiler/common-operator.h"
#include "src/compiler/graph-assembler.h"
#include "src/compiler/node.h"
#include "src/compiler/simplified-operator.h"
#include "src/globals.h"
namespace v8 {
namespace internal {
// Forward declarations.
class Callable;
class Zone;
namespace compiler {
class CommonOperatorBuilder;
class SimplifiedOperatorBuilder;
class MachineOperatorBuilder;
class JSGraph;
class Graph;
class Schedule;
class SourcePositionTable;
class V8_EXPORT_PRIVATE EffectControlLinearizer {
public:
enum MaskArrayIndexEnable { kDoNotMaskArrayIndex, kMaskArrayIndex };
EffectControlLinearizer(JSGraph* graph, Schedule* schedule, Zone* temp_zone,
SourcePositionTable* source_positions,
MaskArrayIndexEnable mask_array_index);
void Run();
private:
void ProcessNode(Node* node, Node** frame_state, Node** effect,
Node** control);
bool TryWireInStateEffect(Node* node, Node* frame_state, Node** effect,
Node** control);
Node* LowerChangeBitToTagged(Node* node);
Node* LowerChangeInt31ToTaggedSigned(Node* node);
Node* LowerChangeInt32ToTagged(Node* node);
Node* LowerChangeUint32ToTagged(Node* node);
Node* LowerChangeFloat64ToTagged(Node* node);
Node* LowerChangeFloat64ToTaggedPointer(Node* node);
Node* LowerChangeTaggedSignedToInt32(Node* node);
Node* LowerChangeTaggedToBit(Node* node);
Node* LowerChangeTaggedToInt32(Node* node);
Node* LowerChangeTaggedToUint32(Node* node);
Node* LowerChangeTaggedToTaggedSigned(Node* node);
Node* LowerCheckBounds(Node* node, Node* frame_state);
Node* LowerMaskIndexWithBound(Node* node);
Node* LowerCheckInternalizedString(Node* node, Node* frame_state);
void LowerCheckMaps(Node* node, Node* frame_state);
Node* LowerCompareMaps(Node* node);
Node* LowerCheckNumber(Node* node, Node* frame_state);
Node* LowerCheckReceiver(Node* node, Node* frame_state);
Node* LowerCheckString(Node* node, Node* frame_state);
Node* LowerCheckSymbol(Node* node, Node* frame_state);
void LowerCheckIf(Node* node, Node* frame_state);
Node* LowerCheckedInt32Add(Node* node, Node* frame_state);
Node* LowerCheckedInt32Sub(Node* node, Node* frame_state);
Node* LowerCheckedInt32Div(Node* node, Node* frame_state);
Node* LowerCheckedInt32Mod(Node* node, Node* frame_state);
Node* LowerCheckedUint32Div(Node* node, Node* frame_state);
Node* LowerCheckedUint32Mod(Node* node, Node* frame_state);
Node* LowerCheckedInt32Mul(Node* node, Node* frame_state);
Node* LowerCheckedInt32ToTaggedSigned(Node* node, Node* frame_state);
Node* LowerCheckedUint32ToInt32(Node* node, Node* frame_state);
Node* LowerCheckedUint32ToTaggedSigned(Node* node, Node* frame_state);
Node* LowerCheckedFloat64ToInt32(Node* node, Node* frame_state);
Node* LowerCheckedTaggedSignedToInt32(Node* node, Node* frame_state);
Node* LowerCheckedTaggedToInt32(Node* node, Node* frame_state);
Node* LowerCheckedTaggedToFloat64(Node* node, Node* frame_state);
Node* LowerCheckedTaggedToTaggedSigned(Node* node, Node* frame_state);
Node* LowerCheckedTaggedToTaggedPointer(Node* node, Node* frame_state);
Node* LowerChangeTaggedToFloat64(Node* node);
void TruncateTaggedPointerToBit(Node* node, GraphAssemblerLabel<1>* done);
Node* LowerTruncateTaggedToBit(Node* node);
Node* LowerTruncateTaggedPointerToBit(Node* node);
Node* LowerTruncateTaggedToFloat64(Node* node);
Node* LowerTruncateTaggedToWord32(Node* node);
Node* LowerCheckedTruncateTaggedToWord32(Node* node, Node* frame_state);
Node* LowerAllocate(Node* node);
Node* LowerNumberToString(Node* node);
Node* LowerObjectIsArrayBufferView(Node* node);
Node* LowerObjectIsBigInt(Node* node);
Node* LowerObjectIsCallable(Node* node);
Node* LowerObjectIsConstructor(Node* node);
Node* LowerObjectIsDetectableCallable(Node* node);
Node* LowerObjectIsMinusZero(Node* node);
Node* LowerObjectIsNaN(Node* node);
Node* LowerObjectIsNonCallable(Node* node);
Node* LowerObjectIsNumber(Node* node);
Node* LowerObjectIsReceiver(Node* node);
Node* LowerObjectIsSmi(Node* node);
Node* LowerObjectIsString(Node* node);
Node* LowerObjectIsSymbol(Node* node);
Node* LowerObjectIsUndetectable(Node* node);
Node* LowerNumberIsFloat64Hole(Node* node);
Node* LowerNumberIsFinite(Node* node);
Node* LowerObjectIsFiniteNumber(Node* node);
Node* LowerArgumentsFrame(Node* node);
Node* LowerArgumentsLength(Node* node);
Node* LowerNewDoubleElements(Node* node);
Node* LowerNewSmiOrObjectElements(Node* node);
Node* LowerNewArgumentsElements(Node* node);
Node* LowerNewConsString(Node* node);
Node* LowerArrayBufferWasNeutered(Node* node);
Node* LowerSameValue(Node* node);
Node* LowerDeadValue(Node* node);
Node* LowerStringToNumber(Node* node);
Node* LowerStringCharCodeAt(Node* node);
Node* LowerStringCodePointAt(Node* node, UnicodeEncoding encoding);
Node* LowerStringToLowerCaseIntl(Node* node);
Node* LowerStringToUpperCaseIntl(Node* node);
Node* LowerStringFromCharCode(Node* node);
Node* LowerStringFromCodePoint(Node* node);
Node* LowerStringIndexOf(Node* node);
Node* LowerStringSubstring(Node* node);
Node* LowerStringLength(Node* node);
Node* LowerStringEqual(Node* node);
Node* LowerStringLessThan(Node* node);
Node* LowerStringLessThanOrEqual(Node* node);
Node* LowerCheckFloat64Hole(Node* node, Node* frame_state);
Node* LowerCheckNotTaggedHole(Node* node, Node* frame_state);
Node* LowerConvertTaggedHoleToUndefined(Node* node);
void LowerCheckEqualsInternalizedString(Node* node, Node* frame_state);
void LowerCheckEqualsSymbol(Node* node, Node* frame_state);
Node* LowerTypeOf(Node* node);
Node* LowerToBoolean(Node* node);
Node* LowerPlainPrimitiveToNumber(Node* node);
Node* LowerPlainPrimitiveToWord32(Node* node);
Node* LowerPlainPrimitiveToFloat64(Node* node);
Node* LowerEnsureWritableFastElements(Node* node);
Node* LowerMaybeGrowFastElements(Node* node, Node* frame_state);
void LowerTransitionElementsKind(Node* node);
Node* LowerLoadFieldByIndex(Node* node);
Node* LowerLoadTypedElement(Node* node);
void LowerStoreTypedElement(Node* node);
void LowerStoreSignedSmallElement(Node* node);
Node* LowerFindOrderedHashMapEntry(Node* node);
Node* LowerFindOrderedHashMapEntryForInt32Key(Node* node);
void LowerTransitionAndStoreElement(Node* node);
void LowerTransitionAndStoreNumberElement(Node* node);
void LowerTransitionAndStoreNonNumberElement(Node* node);
void LowerRuntimeAbort(Node* node);
Node* LowerConvertReceiver(Node* node);
// Lowering of optional operators.
Maybe<Node*> LowerFloat64RoundUp(Node* node);
Maybe<Node*> LowerFloat64RoundDown(Node* node);
Maybe<Node*> LowerFloat64RoundTiesEven(Node* node);
Maybe<Node*> LowerFloat64RoundTruncate(Node* node);
Node* AllocateHeapNumberWithValue(Node* node);
Node* BuildCheckedFloat64ToInt32(CheckForMinusZeroMode mode,
const VectorSlotPair& feedback, Node* value,
Node* frame_state);
Node* BuildCheckedHeapNumberOrOddballToFloat64(CheckTaggedInputMode mode,
const VectorSlotPair& feedback,
Node* value,
Node* frame_state);
Node* BuildFloat64RoundDown(Node* value);
Node* ComputeIntegerHash(Node* value);
Node* LowerStringComparison(Callable const& callable, Node* node);
Node* IsElementsKindGreaterThan(Node* kind, ElementsKind reference_kind);
Node* ChangeInt32ToSmi(Node* value);
Node* ChangeInt32ToIntPtr(Node* value);
Node* ChangeIntPtrToInt32(Node* value);
Node* ChangeUint32ToUintPtr(Node* value);
Node* ChangeUint32ToSmi(Node* value);
Node* ChangeSmiToIntPtr(Node* value);
Node* ChangeSmiToInt32(Node* value);
Node* ObjectIsSmi(Node* value);
Node* LoadFromSeqString(Node* receiver, Node* position, Node* is_one_byte);
Node* SmiMaxValueConstant();
Node* SmiShiftBitsConstant();
void TransitionElementsTo(Node* node, Node* array, ElementsKind from,
ElementsKind to);
Factory* factory() const;
Isolate* isolate() const;
JSGraph* jsgraph() const { return js_graph_; }
Graph* graph() const;
Schedule* schedule() const { return schedule_; }
Zone* temp_zone() const { return temp_zone_; }
CommonOperatorBuilder* common() const;
SimplifiedOperatorBuilder* simplified() const;
MachineOperatorBuilder* machine() const;
GraphAssembler* gasm() { return &graph_assembler_; }
JSGraph* js_graph_;
Schedule* schedule_;
Zone* temp_zone_;
MaskArrayIndexEnable mask_array_index_;
RegionObservability region_observability_ = RegionObservability::kObservable;
SourcePositionTable* source_positions_;
GraphAssembler graph_assembler_;
Node* frame_state_zapper_; // For tracking down compiler::Node::New crashes.
};
} // namespace compiler
} // namespace internal
} // namespace v8
#endif // V8_COMPILER_EFFECT_CONTROL_LINEARIZER_H_