SPIRV-Tools/source/extensions.cpp

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// Copyright (c) 2017 Google Inc.
//
// 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 "source/extensions.h"
#include <cassert>
#include <sstream>
#include <string>
#include "source/binary.h"
#include "source/enum_string_mapping.h"
namespace spvtools {
std::string GetExtensionString(const spv_parsed_instruction_t* inst) {
if (inst->opcode != static_cast<uint16_t>(spv::Op::OpExtension)) {
return "ERROR_not_op_extension";
}
assert(inst->num_operands == 1);
const auto& operand = inst->operands[0];
assert(operand.type == SPV_OPERAND_TYPE_LITERAL_STRING);
assert(inst->num_words > operand.offset);
(void)operand; /* No unused variables in release builds. */
return spvDecodeLiteralStringOperand(*inst, 0);
}
std::string ExtensionSetToString(const ExtensionSet& extensions) {
std::stringstream ss;
for (auto extension : extensions) {
ss << ExtensionToString(extension) << " ";
}
return ss.str();
}
} // namespace spvtools