1// Copyright (c) 2018 Google Inc.
2//
3// Licensed under the Apache License, Version 2.0 (the "License");
4// you may not use this file except in compliance with the License.
5// You may obtain a copy of the License at
6//
7//     http://www.apache.org/licenses/LICENSE-2.0
8//
9// Unless required by applicable law or agreed to in writing, software
10// distributed under the License is distributed on an "AS IS" BASIS,
11// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12// See the License for the specific language governing permissions and
13// limitations under the License.
14
15#include <cstdint>
16#include <vector>
17
18#include "spirv-tools/libspirv.hpp"
19#include "test/fuzzers/random_generator.h"
20
21extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size) {
22  if (size < 1) {
23    return 0;
24  }
25
26  spvtools::fuzzers::RandomGenerator random_gen(data, size);
27  const spv_context context = spvContextCreate(random_gen.GetTargetEnv());
28  if (context == nullptr) {
29    return 0;
30  }
31
32  std::vector<uint32_t> input;
33  input.resize(size >> 2);
34
35  size_t count = 0;
36  for (size_t i = 0; (i + 3) < size; i += 4) {
37    input[count++] = data[i] | (data[i + 1] << 8) | (data[i + 2] << 16) |
38                     (data[i + 3]) << 24;
39  }
40
41  spvBinaryParse(context, nullptr, input.data(), input.size(), nullptr, nullptr,
42                 nullptr);
43
44  spvContextDestroy(context);
45  return 0;
46}
47