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/* Copyright (c) 2019-2022 Hans-Kristian Arntzen for Valve Corporation
*
* SPDX-License-Identifier: MIT
*
* Permission is hereby granted, free of charge, to any person obtaining
* a copy of this software and associated documentation files (the
* "Software"), to deal in the Software without restriction, including
* without limitation the rights to use, copy, modify, merge, publish,
* distribute, sublicense, and/or sell copies of the Software, and to
* permit persons to whom the Software is furnished to do so, subject to
* the following conditions:
*
* The above copyright notice and this permission notice shall be
* included in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
#include "llvm_bitcode_parser.hpp"
#ifdef HAVE_LLVMBC
#include "context.hpp"
#include "module.hpp"
#else
#include <llvm/IRReader/IRReader.h>
#include <llvm/Support/SourceMgr.h>
#endif
namespace dxil_spv
{
struct LLVMBCParser::Impl
{
llvm::LLVMContext context;
#ifdef HAVE_LLVMBC
llvm::Module *module = nullptr;
#else
std::unique_ptr<llvm::Module> module;
#endif
};
LLVMBCParser::LLVMBCParser()
{
impl.reset(new Impl);
}
LLVMBCParser::~LLVMBCParser()
{
}
bool LLVMBCParser::parse(const void *data, size_t size)
{
#ifdef HAVE_LLVMBC
impl->module = llvm::parseIR(impl->context, data, size);
if (!impl->module)
return false;
#else
auto memory = llvm::WritableMemoryBuffer::getNewUninitMemBuffer(size);
memcpy(memory->getBufferStart(), data, size);
llvm::SMDiagnostic error;
impl->module = llvm::parseIR(*memory, error, impl->context);
if (!impl->module)
{
error.print("DXIL", llvm::errs());
return false;
}
#endif
return true;
}
llvm::Module &LLVMBCParser::get_module()
{
return *impl->module;
}
const llvm::Module &LLVMBCParser::get_module() const
{
return *impl->module;
}
} // namespace dxil_spv
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