AggregateAllocaSplitting.hpp

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/*
 * Copyright 2026 Nico Reißmann <nico.reissmann@gmail.com>
 * See COPYING for terms of redistribution.
 */
 
#ifndef JLM_LLVM_OPT_AGGREGATEALLOCASPLITTING_HPP
#define JLM_LLVM_OPT_AGGREGATEALLOCASPLITTING_HPP
 
#include <jlm/rvsdg/Transformation.hpp>
 
namespace jlm::llvm
{
 
class AggregateAllocaSplitting final : public rvsdg::Transformation
{
  struct Context;
  class Statistics;
  struct AllocaTraceInfo;
 
public:
  ~AggregateAllocaSplitting() noexcept override;
 
  AggregateAllocaSplitting();
 
  void
  Run(rvsdg::RvsdgModule & module, util::StatisticsCollector & statisticsCollector) override;
 
private:
  void
  splitAllocaNodes(rvsdg::RvsdgModule & rvsdgModule);
 
  std::vector<AllocaTraceInfo>
  findSplitableAllocaNodes(rvsdg::Region & region) const;
 
  static void
  splitAllocaNode(const AllocaTraceInfo & allocaTraceInfo);
 
  static bool
  checkGetElementPtrUsers(const rvsdg::SimpleNode & gepNode);
 
  static std::optional<AllocaTraceInfo>
  isSplitable(rvsdg::SimpleNode & allocaNode);
 
  static bool
  isSplitableType(const rvsdg::Type & type);
 
  std::unique_ptr<Context> context_{};
};
 
}
 
#endif