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llvmlayer.h
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Tue, Jul 7, 10:01 AM

llvmlayer.h
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/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/.
*
* llvmlayer.h
*
* Author: pgess <v.melnychenko@xreate.org>
*/
#ifndef LLVMLAYER_H
#define LLVMLAYER_H
#include "ast.h"
#include "utils.h"
#include "llvm/IR/LLVMContext.h"
#include "llvm/IR/IRBuilder.h"
#include "llvm/Target/TargetOptions.h"
namespace llvm {
class ExecutionEngine;
}
namespace xreate {
class ExternLayer;
/** \brief A wrapper over LLVM toolchain to generate and execute bytecode */
class LLVMLayer {
public:
LLVMLayer(AST* rootAST);
mutable llvm::LLVMContext llvmContext;
llvm::IRBuilder<> irBuilder;
AST *ast = 0;
ExternLayer *layerExtern =0;
std::unique_ptr<llvm::Module> module;
std::unique_ptr<llvm::ExecutionEngine> jit;
llvm::TargetOptions optsTarget;
llvm::CodeGenOpt::Level optsLevel = llvm::CodeGenOpt::None;
void moveToGarbage(void *o);
llvm::Type* toLLVMType(const Expanded<TypeAnnotation>& ty, const Expression& expr = Expression());
void print();
void* getFunctionPointer(llvm::Function* function);
void initJit();
private:
llvm::Type* toLLVMType(const Expanded<TypeAnnotation>& ty, std::map<int, llvm::StructType*>& conjunctions) const;
std::vector<void *> __garbage;
};
class TypesHelper {
public:
bool isArrayT(const Expanded<TypeAnnotation>& ty);
bool isRecordT(const Expanded<TypeAnnotation>& ty);
bool isPointerT(const Expanded<TypeAnnotation>& ty);
bool isIntegerT(const Expanded<TypeAnnotation>& ty);
llvm::IntegerType* getPreferredIntTy() const;
std::vector<std::string> getRecordFields(const Expanded<TypeAnnotation>& t);
TypesHelper(const LLVMLayer* llvmlayer): llvm(llvmlayer){}
private:
const LLVMLayer* llvm;
};
}
#endif // LLVMLAYER_H

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