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