// Copyright (c) 2018 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.

#ifndef TEST_REDUCE_REDUCE_TEST_UTIL_H_
#define TEST_REDUCE_REDUCE_TEST_UTIL_H_

#include "gtest/gtest.h"
#include "source/opt/ir_context.h"
#include "source/reduce/reduction_opportunity.h"
#include "spirv-tools/libspirv.h"

namespace spvtools {
namespace reduce {

// Checks whether the given binaries are bit-wise equal.
void CheckEqual(spv_target_env env,
                const std::vector<uint32_t>& expected_binary,
                const std::vector<uint32_t>& actual_binary);

// Assembles the given text and check whether the resulting binary is bit-wise
// equal to the given binary.
void CheckEqual(spv_target_env env, const std::string& expected_text,
                const std::vector<uint32_t>& actual_binary);

// Assembles the given text and turns the given IR into binary, then checks
// whether the resulting binaries are bit-wise equal.
void CheckEqual(spv_target_env env, const std::string& expected_text,
                const opt::IRContext* actual_ir);

// Assembles the given IR context and checks whether the resulting binary is
// valid.
void CheckValid(spv_target_env env, const opt::IRContext* ir);

// Assembles the given IR context, then returns its disassembly as a string.
// Useful for debugging.
std::string ToString(spv_target_env env, const opt::IRContext* ir);

// Assembly options for writing reduction tests.  It simplifies matters if
// numeric ids do not change.
const uint32_t kReduceAssembleOption =
    SPV_TEXT_TO_BINARY_OPTION_PRESERVE_NUMERIC_IDS;
// Disassembly options for writing reduction tests.
const uint32_t kReduceDisassembleOption =
    SPV_BINARY_TO_TEXT_OPTION_NO_HEADER | SPV_BINARY_TO_TEXT_OPTION_INDENT;

// Don't print reducer info during testing.
void NopDiagnostic(spv_message_level_t /*level*/, const char* /*source*/,
                   const spv_position_t& /*position*/, const char* /*message*/);

// Prints reducer messages (for debugging).
void CLIMessageConsumer(spv_message_level_t level, const char*,
                        const spv_position_t& position, const char* message);

// Dumps the SPIRV-V module in |context| to file |filename|. Useful for
// interactive debugging.
void DumpShader(opt::IRContext* context, const char* filename);

// Dumps |binary| to file |filename|. Useful for interactive debugging.
void DumpShader(const std::vector<uint32_t>& binary, const char* filename);

}  // namespace reduce
}  // namespace spvtools

#endif  // TEST_REDUCE_REDUCE_TEST_UTIL_H_