9e9d1cb373
Introduce Reducer::Finalize, which get's called by the GraphReducer once all reductions are done, and use this to implement full inlining as part of the regular reducer fixpoint. R=jarin@chromium.org BUG=v8:4493 LOG=n Review URL: https://codereview.chromium.org/1419373012 Cr-Commit-Position: refs/heads/master@{#31875}
63 lines
1.8 KiB
C++
63 lines
1.8 KiB
C++
// Copyright 2015 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_JS_INLINING_HEURISTIC_H_
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#define V8_COMPILER_JS_INLINING_HEURISTIC_H_
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#include "src/compiler/js-inlining.h"
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namespace v8 {
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namespace internal {
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namespace compiler {
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class JSInliningHeuristic final : public AdvancedReducer {
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public:
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enum Mode { kGeneralInlining, kRestrictedInlining, kStressInlining };
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JSInliningHeuristic(Editor* editor, Mode mode, Zone* local_zone,
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CompilationInfo* info, JSGraph* jsgraph)
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: AdvancedReducer(editor),
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mode_(mode),
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inliner_(editor, local_zone, info, jsgraph),
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candidates_(local_zone),
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seen_(local_zone),
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info_(info) {}
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Reduction Reduce(Node* node) final;
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// Processes the list of candidates gathered while the reducer was running,
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// and inlines call sites that the heuristic determines to be important.
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void Finalize() final;
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private:
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struct Candidate {
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Handle<JSFunction> function; // The call target being inlined.
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Node* node; // The call site at which to inline.
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int calls; // Number of times the call site was hit.
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};
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// Comparator for candidates.
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struct CandidateCompare {
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bool operator()(const Candidate& left, const Candidate& right) const;
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};
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// Candidates are kept in a sorted set of unique candidates.
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typedef ZoneSet<Candidate, CandidateCompare> Candidates;
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// Dumps candidates to console.
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void PrintCandidates();
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Mode const mode_;
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JSInliner inliner_;
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Candidates candidates_;
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ZoneSet<NodeId> seen_;
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CompilationInfo* info_;
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int cumulative_count_ = 0;
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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_JS_INLINING_HEURISTIC_H_
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