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// Copyright (c) 2017 Pierre Moreau
//
// 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_LINK_LINKER_FIXTURE_H_
#define TEST_LINK_LINKER_FIXTURE_H_
#include <iostream>
#include <string>
#include <vector>
#include "effcee/effcee.h"
#include "re2/re2.h"
#include "source/spirv_constant.h"
#include "spirv-tools/linker.hpp"
#include "test/unit_spirv.h"
namespace spvtest {
using Binary = std::vector<uint32_t>;
using Binaries = std::vector<Binary>;
class LinkerTest : public ::testing::Test {
public:
LinkerTest()
: context_(SPV_ENV_UNIVERSAL_1_2),
tools_(SPV_ENV_UNIVERSAL_1_2),
assemble_options_(spvtools::SpirvTools::kDefaultAssembleOption),
disassemble_options_(spvtools::SpirvTools::kDefaultDisassembleOption) {
const auto consumer = [this](spv_message_level_t level, const char*,
const spv_position_t& position,
const char* message) {
if (!error_message_.empty()) error_message_ += "\n";
switch (level) {
case SPV_MSG_FATAL:
case SPV_MSG_INTERNAL_ERROR:
case SPV_MSG_ERROR:
error_message_ += "ERROR";
break;
case SPV_MSG_WARNING:
error_message_ += "WARNING";
break;
case SPV_MSG_INFO:
error_message_ += "INFO";
break;
case SPV_MSG_DEBUG:
error_message_ += "DEBUG";
break;
}
error_message_ += ": " + std::to_string(position.index) + ": " + message;
};
context_.SetMessageConsumer(consumer);
tools_.SetMessageConsumer(consumer);
}
void TearDown() override { error_message_.clear(); }
// Assembles each of the given strings into SPIR-V binaries before linking
// them together. SPV_ERROR_INVALID_TEXT is returned if the assembling failed
// for any of the input strings, and SPV_ERROR_INVALID_POINTER if
// |linked_binary| is a null pointer.
spv_result_t AssembleAndLink(
const std::vector<std::string>& bodies, spvtest::Binary* linked_binary,
spvtools::LinkerOptions options = spvtools::LinkerOptions()) {
if (!linked_binary) return SPV_ERROR_INVALID_POINTER;
spvtest::Binaries binaries(bodies.size());
for (size_t i = 0u; i < bodies.size(); ++i)
if (!tools_.Assemble(bodies[i], binaries.data() + i, assemble_options_))
return SPV_ERROR_INVALID_TEXT;
return spvtools::Link(context_, binaries, linked_binary, options);
}
// Assembles and links a vector of SPIR-V bodies based on the |templateBody|.
// Template arguments to be replaced are written as {a,b,...}.
// SPV_ERROR_INVALID_TEXT is returned if the assembling failed for any of the
// resulting bodies (or errors in the template), and SPV_ERROR_INVALID_POINTER
// if |linked_binary| is a null pointer.
spv_result_t ExpandAndLink(
const std::string& templateBody, spvtest::Binary* linked_binary,
spvtools::LinkerOptions options = spvtools::LinkerOptions()) {
if (!linked_binary) return SPV_ERROR_INVALID_POINTER;
// Find out how many template arguments there are, we assume they all have
// the same number. We'll error later if they don't.
re2::StringPiece temp(templateBody);
re2::StringPiece x;
int cnt = 0;
if (!RE2::FindAndConsume(&temp, "{")) return SPV_ERROR_INVALID_TEXT;
while (RE2::FindAndConsume(&temp, "([,}])", &x) && x[0] == ',') cnt++;
cnt++;
if (cnt <= 1) return SPV_ERROR_INVALID_TEXT;
// Construct a regex for a single common strip and template expansion.
std::string regex("([^{]*){");
for (int i = 0; i < cnt; i++) regex += (i > 0) ? ",([^,]*)" : "([^,]*)";
regex += "}";
RE2 pattern(regex);
// Prepare the RE2::Args for processing.
re2::StringPiece common;
std::vector<re2::StringPiece> variants(cnt);
std::vector<RE2::Arg> args(cnt + 1);
args[0] = RE2::Arg(&common);
std::vector<RE2::Arg*> pargs(cnt + 1);
pargs[0] = &args[0];
for (int i = 0; i < cnt; i++) {
args[i + 1] = RE2::Arg(&variants[i]);
pargs[i + 1] = &args[i + 1];
}
// Reset and construct the bodies bit by bit.
std::vector<std::string> bodies(cnt);
re2::StringPiece temp2(templateBody);
while (RE2::ConsumeN(&temp2, pattern, pargs.data(), cnt + 1)) {
for (int i = 0; i < cnt; i++) {
bodies[i].append(common.begin(), common.end());
bodies[i].append(variants[i].begin(), variants[i].end());
}
}
RE2::Consume(&temp2, "([^{]*)", &common);
for (int i = 0; i < cnt; i++)
bodies[i].append(common.begin(), common.end());
// Run through the assemble and link stages of the process.
return AssembleAndLink(bodies, linked_binary, options);
}
// Expand the |templateBody| and link the results as with ExpandAndLink,
// then disassemble and test that the result matches the |expected|.
void ExpandAndCheck(
const std::string& templateBody, const std::string& expected,
const spvtools::LinkerOptions options = spvtools::LinkerOptions()) {
spvtest::Binary linked_binary;
spv_result_t res = ExpandAndLink(templateBody, &linked_binary, options);
EXPECT_EQ(SPV_SUCCESS, res) << GetErrorMessage() << "\nExpanded from:\n"
<< templateBody;
if (res == SPV_SUCCESS) {
std::string result;
EXPECT_TRUE(
tools_.Disassemble(linked_binary, &result, disassemble_options_))
<< GetErrorMessage();
EXPECT_EQ(expected, result);
}
}
// An alternative to ExpandAndCheck, which uses the |templateBody| as the
// match pattern for the disassembled linked result.
void ExpandAndMatch(
const std::string& templateBody,
const spvtools::LinkerOptions options = spvtools::LinkerOptions()) {
spvtest::Binary linked_binary;
spv_result_t res = ExpandAndLink(templateBody, &linked_binary, options);
EXPECT_EQ(SPV_SUCCESS, res) << GetErrorMessage() << "\nExpanded from:\n"
<< templateBody;
if (res == SPV_SUCCESS) {
std::string result;
EXPECT_TRUE(
tools_.Disassemble(linked_binary, &result, disassemble_options_))
<< GetErrorMessage();
auto match_res = effcee::Match(result, templateBody);
EXPECT_EQ(effcee::Result::Status::Ok, match_res.status())
<< match_res.message() << "\nExpanded from:\n"
<< templateBody << "\nChecking result:\n"
<< result;
}
}
// Links the given SPIR-V binaries together; SPV_ERROR_INVALID_POINTER is
// returned if |linked_binary| is a null pointer.
spv_result_t Link(
const spvtest::Binaries& binaries, spvtest::Binary* linked_binary,
spvtools::LinkerOptions options = spvtools::LinkerOptions()) {
if (!linked_binary) return SPV_ERROR_INVALID_POINTER;
return spvtools::Link(context_, binaries, linked_binary, options);
}
// Disassembles |binary| and outputs the result in |text|. If |text| is a
// null pointer, SPV_ERROR_INVALID_POINTER is returned.
spv_result_t Disassemble(const spvtest::Binary& binary, std::string* text) {
if (!text) return SPV_ERROR_INVALID_POINTER;
return tools_.Disassemble(binary, text, disassemble_options_)
? SPV_SUCCESS
: SPV_ERROR_INVALID_BINARY;
}
// Sets the options for the assembler.
void SetAssembleOptions(uint32_t assemble_options) {
assemble_options_ = assemble_options;
}
// Sets the options used by the disassembler.
void SetDisassembleOptions(uint32_t disassemble_options) {
disassemble_options_ = disassemble_options;
}
// Returns the accumulated error messages for the test.
std::string GetErrorMessage() const { return error_message_; }
private:
spvtools::Context context_;
spvtools::SpirvTools
tools_; // An instance for calling SPIRV-Tools functionalities.
uint32_t assemble_options_;
uint32_t disassemble_options_;
std::string error_message_;
};
} // namespace spvtest
#endif // TEST_LINK_LINKER_FIXTURE_H_