Method Apply

source/fuzz/fuzzer_pass_expand_vector_reductions.cpp:32–63

                 transformations, ignore_inapplicable_transformations) {}

void FuzzerPassExpandVectorReductions::Apply() {
  for (auto& function : *GetIRContext()->module()) {
    for (auto& block : function) {
      for (auto& instruction : block) {
        // Randomly decides whether the transformation will be applied.
        if (!GetFuzzerContext()->ChoosePercentage(
                GetFuzzerContext()->GetChanceOfExpandingVectorReduction())) {
          continue;
        }

        // |instruction| must be OpAny or OpAll.
        if (instruction.opcode() != spv::Op::OpAny &&
            instruction.opcode() != spv::Op::OpAll) {
          continue;
        }

        // It must be able to make a synonym of |instruction|.
        if (!fuzzerutil::CanMakeSynonymOf(
                GetIRContext(), *GetTransformationContext(), instruction)) {
          continue;
        }

        // Applies the expand vector reduction transformation.
        ApplyTransformation(TransformationExpandVectorReduction(
            instruction.result_id(),
            GetFuzzerContext()->GetFreshIds(
                TransformationExpandVectorReduction::GetRequiredFreshIdCount(
                    GetIRContext(), &instruction))));
      }
    }
  }
}

}  // namespace fuzz
}  // namespace spvtools