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// Copyright (c) 2019 Google LLC
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
#include "test/fuzz/fuzz_test_util.h"
#include "gtest/gtest.h"
#include <fstream>
#include <iostream>
#include "source/opt/def_use_manager.h"
#include "tools/io.h"
namespace spvtools {
namespace fuzz {
const spvtools::MessageConsumer kConsoleMessageConsumer =
[](spv_message_level_t level, const char*, const spv_position_t& position,
const char* message) -> void {
switch (level) {
case SPV_MSG_FATAL:
case SPV_MSG_INTERNAL_ERROR:
case SPV_MSG_ERROR:
std::cerr << "error: line " << position.index << ": " << message
<< std::endl;
break;
case SPV_MSG_WARNING:
std::cout << "warning: line " << position.index << ": " << message
<< std::endl;
break;
case SPV_MSG_INFO:
std::cout << "info: line " << position.index << ": " << message
<< std::endl;
break;
default:
break;
}
};
bool IsEqual(const spv_target_env env,
const std::vector<uint32_t>& expected_binary,
const std::vector<uint32_t>& actual_binary) {
if (expected_binary == actual_binary) {
return true;
}
SpirvTools t(env);
std::string expected_disassembled;
std::string actual_disassembled;
if (!t.Disassemble(expected_binary, &expected_disassembled,
kFuzzDisassembleOption)) {
return false;
}
if (!t.Disassemble(actual_binary, &actual_disassembled,
kFuzzDisassembleOption)) {
return false;
}
// Using expect gives us a string diff if the strings are not the same.
EXPECT_EQ(expected_disassembled, actual_disassembled);
// We then return the result of the equality comparison, to be used by an
// assertion in the test root function.
return expected_disassembled == actual_disassembled;
}
bool IsEqual(const spv_target_env env, const std::string& expected_text,
const std::vector<uint32_t>& actual_binary) {
std::vector<uint32_t> expected_binary;
SpirvTools t(env);
if (!t.Assemble(expected_text, &expected_binary, kFuzzAssembleOption)) {
return false;
}
return IsEqual(env, expected_binary, actual_binary);
}
bool IsEqual(const spv_target_env env, const std::string& expected_text,
const opt::IRContext* actual_ir) {
std::vector<uint32_t> actual_binary;
actual_ir->module()->ToBinary(&actual_binary, false);
return IsEqual(env, expected_text, actual_binary);
}
bool IsEqual(const spv_target_env env, const opt::IRContext* ir_1,
const opt::IRContext* ir_2) {
std::vector<uint32_t> binary_1;
ir_1->module()->ToBinary(&binary_1, false);
std::vector<uint32_t> binary_2;
ir_2->module()->ToBinary(&binary_2, false);
return IsEqual(env, binary_1, binary_2);
}
bool IsEqual(const spv_target_env env, const std::vector<uint32_t>& binary_1,
const opt::IRContext* ir_2) {
std::vector<uint32_t> binary_2;
ir_2->module()->ToBinary(&binary_2, false);
return IsEqual(env, binary_1, binary_2);
}
std::string ToString(spv_target_env env, const opt::IRContext* ir) {
std::vector<uint32_t> binary;
ir->module()->ToBinary(&binary, false);
return ToString(env, binary);
}
std::string ToString(spv_target_env env, const std::vector<uint32_t>& binary) {
SpirvTools t(env);
std::string result;
t.Disassemble(binary, &result, kFuzzDisassembleOption);
return result;
}
void DumpShader(opt::IRContext* context, const char* filename) {
std::vector<uint32_t> binary;
context->module()->ToBinary(&binary, false);
DumpShader(binary, filename);
}
void DumpShader(const std::vector<uint32_t>& binary, const char* filename) {
auto write_file_succeeded =
WriteFile(filename, "wb", &binary[0], binary.size());
if (!write_file_succeeded) {
std::cerr << "Failed to dump shader" << std::endl;
}
}
void DumpTransformationsBinary(
const protobufs::TransformationSequence& transformations,
const char* filename) {
std::ofstream transformations_file;
transformations_file.open(filename, std::ios::out | std::ios::binary);
transformations.SerializeToOstream(&transformations_file);
transformations_file.close();
}
void DumpTransformationsJson(
const protobufs::TransformationSequence& transformations,
const char* filename) {
std::string json_string;
auto json_options = google::protobuf::util::JsonPrintOptions();
json_options.add_whitespace = true;
auto json_generation_status = google::protobuf::util::MessageToJsonString(
transformations, &json_string, json_options);
if (json_generation_status.ok()) {
std::ofstream transformations_json_file(filename);
transformations_json_file << json_string;
transformations_json_file.close();
}
}
void ApplyAndCheckFreshIds(
const Transformation& transformation, opt::IRContext* ir_context,
TransformationContext* transformation_context,
const std::unordered_set<uint32_t>& issued_overflow_ids) {
// To ensure that we cover all ToMessage and message-based constructor methods
// in our tests, we turn this into a message and back into a transformation,
// and use the reconstructed transformation in the rest of the function.
auto message = transformation.ToMessage();
auto reconstructed_transformation = Transformation::FromMessage(message);
opt::analysis::DefUseManager::IdToDefMap before_transformation =
ir_context->get_def_use_mgr()->id_to_defs();
reconstructed_transformation->Apply(ir_context, transformation_context);
opt::analysis::DefUseManager::IdToDefMap after_transformation =
ir_context->get_def_use_mgr()->id_to_defs();
std::unordered_set<uint32_t> fresh_ids_for_transformation =
reconstructed_transformation->GetFreshIds();
for (auto& entry : after_transformation) {
uint32_t id = entry.first;
bool introduced_by_transformation_message =
fresh_ids_for_transformation.count(id);
bool introduced_by_overflow_ids = issued_overflow_ids.count(id);
ASSERT_FALSE(introduced_by_transformation_message &&
introduced_by_overflow_ids);
if (before_transformation.count(entry.first)) {
ASSERT_FALSE(introduced_by_transformation_message ||
introduced_by_overflow_ids);
} else {
ASSERT_TRUE(introduced_by_transformation_message ||
introduced_by_overflow_ids);
}
}
}
} // namespace fuzz
} // namespace spvtools
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