Function GetFunctionInstructionCount

test/reduce/reducer_test.cpp:563–574

Computes an instruction count for each function in the module represented by |binary|.

// Computes an instruction count for each function in the module represented by
// |binary|.
std::unordered_map<uint32_t, uint32_t> GetFunctionInstructionCount(
    const std::vector<uint32_t>& binary) {
  std::unique_ptr<opt::IRContext> context =
      BuildModule(kEnv, kMessageConsumer, binary.data(), binary.size());
  assert(context != nullptr && "Failed to build module.");
  std::unordered_map<uint32_t, uint32_t> result;
  for (auto& function : *context->module()) {
    uint32_t& count = result[function.result_id()] = 0;
    function.ForEachInst([&count](opt::Instruction*) { count++; });
  }
  return result;
}

TEST(ReducerTest, SingleFunctionReduction) {
  Reducer reducer(kEnv);