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/*
* Copyright (c) 2011, Denis Steckelmacher <steckdenis@yahoo.fr>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* * Neither the name of the copyright holder nor the
* names of its contributors may be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE CONTRIBUTORS BE LIABLE FOR ANY
* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
/**
* \file compiler.h
* \brief Compiler wrapped around Clang
*/
#ifndef __COMPILER_H__
#define __COMPILER_H__
#include <string>
#include <clang/Frontend/CompilerInstance.h>
#include <llvm/Support/raw_ostream.h>
namespace llvm
{
class MemoryBuffer;
class Module;
}
namespace clang
{
class TextDiagnosticPrinter;
}
namespace Coal
{
class DeviceInterface;
/**
* \brief Compiler using Clang
*
* This class builds a Clang instance, runs it and then retains compilation logs
* and produced data.
*/
class Compiler
{
public:
/**
* \brief Constructor
* \param device \c Coal::DeviceInterface for which code will be compiled
*/
Compiler(DeviceInterface *device);
~Compiler();
/**
* \brief Compile \p source to produce a LLVM module
* \param options options given to the compiler, described in the OpenCL spec
* \param source source to be compiled
* \return true if the compilation is successful, false otherwise
* 2 if illegal options
* \sa module()
* \sa log()
*/
int compile(const std::string &options, llvm::MemoryBuffer *source);
/**
* \brief Compilation log
* \note \c appendLog() can also be used to append custom info at the end
* of the log, for instance to keep compilation and linking logs
* in the same place
* \return log
*/
const std::string &log() const;
/**
* \brief Options given at \c compile()
* \return options used during compilation
*/
const std::string &options() const;
/**
* \brief Optimization enabled
* \return true if -cl-opt-disable was given in the options, false otherwise
*/
bool optimize() const;
/**
* \brief LLVM module generated
* \return LLVM module generated by the compilation, 0 if an error occured
*/
llvm::Module *module() const;
/**
* \brief Append a string to the log
*
* This function can be used to append linking or code-gen logs to the
* internal compilation log kept by this class
*
* \param log log to be appended
*/
void appendLog(const std::string &log);
private:
DeviceInterface *p_device;
clang::CompilerInstance p_compiler;
llvm::Module *p_module;
bool p_optimize;
std::string p_log, p_options;
llvm::raw_string_ostream p_log_stream;
clang::TextDiagnosticPrinter *p_log_printer;
void add_macrodefs_for_supported_opencl_extensions
(clang::PreprocessorOptions &prep_opts);
};
}
#endif
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