f9a88acbc9
TBR=mvstanton@chromium.org,neis@chromium.org,ahaas@chromium.org Bug: v8:9247 Change-Id: I5433c863a54f3412d73df0d38aba3fdbcfac7ebe Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1627973 Commit-Queue: Yang Guo <yangguo@chromium.org> Auto-Submit: Yang Guo <yangguo@chromium.org> Reviewed-by: Michael Starzinger <mstarzinger@chromium.org> Cr-Commit-Position: refs/heads/master@{#61830}
87 lines
2.5 KiB
C++
87 lines
2.5 KiB
C++
// Copyright 2014 the V8 project authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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#ifndef V8_COMPILER_INT64_LOWERING_H_
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#define V8_COMPILER_INT64_LOWERING_H_
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#include "src/common/globals.h"
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#include "src/compiler/common-operator.h"
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#include "src/compiler/graph.h"
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#include "src/compiler/machine-operator.h"
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#include "src/compiler/node-marker.h"
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#include "src/zone/zone-containers.h"
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namespace v8 {
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namespace internal {
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template <typename T>
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class Signature;
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namespace compiler {
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class V8_EXPORT_PRIVATE Int64Lowering {
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public:
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Int64Lowering(Graph* graph, MachineOperatorBuilder* machine,
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CommonOperatorBuilder* common, Zone* zone,
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Signature<MachineRepresentation>* signature);
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void LowerGraph();
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static int GetParameterCountAfterLowering(
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Signature<MachineRepresentation>* signature);
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private:
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enum class State : uint8_t { kUnvisited, kOnStack, kVisited };
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struct Replacement {
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Node* low;
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Node* high;
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};
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Zone* zone() const { return zone_; }
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Graph* graph() const { return graph_; }
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MachineOperatorBuilder* machine() const { return machine_; }
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CommonOperatorBuilder* common() const { return common_; }
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Signature<MachineRepresentation>* signature() const { return signature_; }
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void PushNode(Node* node);
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void LowerNode(Node* node);
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bool DefaultLowering(Node* node, bool low_word_only = false);
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void LowerComparison(Node* node, const Operator* signed_op,
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const Operator* unsigned_op);
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void LowerWord64AtomicBinop(Node* node, const Operator* op);
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void LowerWord64AtomicNarrowOp(Node* node, const Operator* op);
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void ReplaceNode(Node* old, Node* new_low, Node* new_high);
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bool HasReplacementLow(Node* node);
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Node* GetReplacementLow(Node* node);
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bool HasReplacementHigh(Node* node);
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Node* GetReplacementHigh(Node* node);
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void PreparePhiReplacement(Node* phi);
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void GetIndexNodes(Node* index, Node*& index_low, Node*& index_high);
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void ReplaceNodeWithProjections(Node* node);
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void LowerMemoryBaseAndIndex(Node* node);
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struct NodeState {
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Node* node;
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int input_index;
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};
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Zone* zone_;
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Graph* const graph_;
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MachineOperatorBuilder* machine_;
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CommonOperatorBuilder* common_;
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NodeMarker<State> state_;
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ZoneDeque<NodeState> stack_;
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Replacement* replacements_;
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Signature<MachineRepresentation>* signature_;
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Node* placeholder_;
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};
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} // namespace compiler
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} // namespace internal
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} // namespace v8
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#endif // V8_COMPILER_INT64_LOWERING_H_
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