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// Copyright 2014 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_VERIFIER_H_
#define V8_COMPILER_VERIFIER_H_
#include "src/base/macros.h"
#include "src/common/globals.h"
namespace v8 {
namespace internal {
namespace compiler {
class Graph;
class Edge;
class Node;
class Schedule;
// Verifies properties of a graph, such as the well-formedness of inputs to
// each node, etc.
class Verifier {
public:
enum Typing { TYPED, UNTYPED };
enum CheckInputs { kValuesOnly, kAll };
enum CodeType { kDefault, kWasm };
Verifier(const Verifier&) = delete;
Verifier& operator=(const Verifier&) = delete;
static void Run(Graph* graph, Typing typing = TYPED,
CheckInputs check_inputs = kAll,
CodeType code_type = kDefault);
#ifdef DEBUG
// Verifies consistency of node inputs and uses:
// - node inputs should agree with the input count computed from
// the node's operator.
// - effect inputs should have effect outputs.
// - control inputs should have control outputs.
// - frame state inputs should be frame states.
// - if the node has control uses, it should produce control.
// - if the node has effect uses, it should produce effect.
// - if the node has frame state uses, it must be a frame state.
static void VerifyNode(Node* node);
// Verify that {replacement} has the required outputs
// (effect, control or frame state) to be used as an input for {edge}.
static void VerifyEdgeInputReplacement(const Edge& edge,
const Node* replacement);
#else
static void VerifyNode(Node* node) {}
static void VerifyEdgeInputReplacement(const Edge& edge,
const Node* replacement) {}
#endif // DEBUG
private:
class Visitor;
};
// Verifies properties of a schedule, such as dominance, phi placement, etc.
class V8_EXPORT_PRIVATE ScheduleVerifier {
public:
static void Run(Schedule* schedule);
};
} // namespace compiler
} // namespace internal
} // namespace v8
#endif // V8_COMPILER_VERIFIER_H_
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