GetElementPtr.cpp

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/*
 * Copyright 2018 Nico Reißmann <nico.reissmann@gmail.com>
 * See COPYING for terms of redistribution.
 */
 
#include <jlm/llvm/ir/operators/GetElementPtr.hpp>
#include <jlm/llvm/ir/Trace.hpp>
 
namespace jlm::llvm
{
 
GetElementPtrOperation::~GetElementPtrOperation() noexcept = default;
 
bool
GetElementPtrOperation::operator==(const Operation & other) const noexcept
{
  auto operation = dynamic_cast<const GetElementPtrOperation *>(&other);
 
  if (operation == nullptr || getPointeeType() != operation->getPointeeType()
      || narguments() != operation->narguments())
  {
    return false;
  }
 
  for (size_t n = 0; n < narguments(); n++)
  {
    if (operation->argument(n) != argument(n))
    {
      return false;
    }
  }
 
  return true;
}
 
std::string
GetElementPtrOperation::debug_string() const
{
  return "GetElementPtr";
}
 
std::unique_ptr<rvsdg::Operation>
GetElementPtrOperation::copy() const
{
  return std::make_unique<GetElementPtrOperation>(*this);
}
 
std::optional<std::vector<uint64_t>>
GetElementPtrOperation::tryGetConstantIndices(const rvsdg::Node & node) noexcept
{
  JLM_ASSERT(is<GetElementPtrOperation>(node.GetOperation()));
 
  std::vector<size_t> constants;
  for (auto & input : indices(node))
  {
    if (auto constant = tryGetConstantSignedInteger(*input.origin()))
    {
      constants.push_back(constant.value());
    }
    else
    {
      return std::nullopt;
    }
  }
 
  return constants;
}
 
}