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/*
* ***** BEGIN GPL LICENSE BLOCK *****
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software Foundation,
* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*
* The Original Code is Copyright (C) Blender Foundation.
* All rights reserved.
*
* The Original Code is: all of this file.
*
* Contributor(s): Lukas Toenne
*
* ***** END GPL LICENSE BLOCK *****
*/
#ifndef __LLVM_COMPILER_H__
#define __LLVM_COMPILER_H__
/** \file blender/blenvm/llvm/llvm_compiler.h
* \ingroup llvm
*/
#include <set>
#include <vector>
#include "MEM_guardedalloc.h"
#include "node_graph.h"
#include "util_opcode.h"
#include "util_string.h"
#include "util_math.h"
namespace llvm {
class LLVMContext;
class Argument;
class BasicBlock;
class CallInst;
class Constant;
class Function;
class FunctionType;
class Module;
class StructType;
class Type;
class Value;
}
namespace blenvm {
struct NodeGraph;
struct NodeInstance;
struct TypeDesc;
struct FunctionLLVM;
struct FunctionParameter {
FunctionParameter(llvm::Type *type, const std::string &name) :
type(type), name(name)
{}
llvm::Type *type;
std::string name;
};
typedef std::vector<FunctionParameter> FunctionParameterList;
typedef void* ValueHandle;
typedef std::map<ConstOutputKey, ValueHandle> SocketValueMap;
struct Scope {
Scope(Scope *parent);
bool has_node(const NodeInstance *node) const;
bool has_value(const ConstOutputKey &key) const;
ValueHandle find_value(const ConstOutputKey &key) const;
void set_value(const ConstOutputKey &key, ValueHandle value);
Scope *parent;
SocketValueMap values;
};
struct LLVMCompilerBase {
typedef std::map<ConstOutputKey, ValueHandle> ArgumentValueMap;
virtual ~LLVMCompilerBase();
FunctionLLVM *compile_function(const string &name, const NodeGraph &graph, int opt_level);
void debug_function(const string &name, const NodeGraph &graph, int opt_level, FILE *file);
protected:
LLVMCompilerBase();
llvm::LLVMContext &context() const;
llvm::Module *module() const { return m_module; }
void create_module(const string &name);
void destroy_module();
llvm::BasicBlock *codegen_function_body_expression(const NodeGraph &graph, llvm::Function *func);
llvm::Function *codegen_node_function(const string &name, const NodeGraph &graph);
void expand_node(llvm::BasicBlock *block, const NodeInstance *node, Scope &scope);
void expand_pass_node(llvm::BasicBlock *block, const NodeInstance *node, Scope &scope);
void expand_argument_node(llvm::BasicBlock *block, const NodeInstance *node, Scope &scope);
void expand_expression_node(llvm::BasicBlock *block, const NodeInstance *node, Scope &scope);
virtual void node_graph_begin() = 0;
virtual void node_graph_end() = 0;
virtual ValueHandle alloc_node_value(llvm::BasicBlock *block, const TypeSpec *typespec) = 0;
virtual void append_output_arguments(std::vector<llvm::Value*> &args, const TypeSpec *typespec, ValueHandle handle) = 0;
virtual void append_input_value(llvm::BasicBlock *block, std::vector<llvm::Value*> &args,
const TypeSpec *typespec, ValueHandle handle) = 0;
virtual void append_input_constant(llvm::BasicBlock *block, std::vector<llvm::Value*> &args,
const TypeSpec *typespec, const NodeConstant *node_value) = 0;
virtual ValueHandle map_argument(llvm::BasicBlock *block, const TypeSpec *typespec, llvm::Argument *arg) = 0;
virtual void store_return_value(llvm::BasicBlock *block, const TypeSpec *typespec,
ValueHandle handle, llvm::Value *arg) = 0;
virtual llvm::Type *get_argument_type(const TypeSpec *spec) const = 0;
virtual llvm::Type *get_return_type(const TypeSpec *spec) const = 0;
virtual void append_input_types(FunctionParameterList ¶ms, const NodeInput *input) const = 0;
virtual void append_output_types(FunctionParameterList ¶ms, const NodeOutput *output) const = 0;
llvm::Function *declare_function(llvm::Module *mod, const string &name,
const FunctionParameterList &input_types,
const FunctionParameterList &output_types,
bool use_globals);
llvm::Function *declare_node_function(llvm::Module *mod, const NodeType *nodetype);
virtual void define_nodes_module() = 0;
virtual llvm::Module *get_nodes_module() const = 0;
private:
llvm::Module *m_module;
llvm::Value *m_globals_ptr;
ArgumentValueMap m_argument_values;
};
struct LLVMTextureCompiler : public LLVMCompilerBase {
typedef Dual2<llvm::Value*> DualValue;
typedef std::map<ValueHandle, DualValue> HandleValueMap;
static ValueHandle get_handle(const DualValue &value);
void node_graph_begin();
void node_graph_end();
ValueHandle alloc_node_value(llvm::BasicBlock *block, const TypeSpec *typespec);
void append_output_arguments(std::vector<llvm::Value*> &args, const TypeSpec *typespec, ValueHandle handle);
void append_input_value(llvm::BasicBlock *block, std::vector<llvm::Value*> &args,
const TypeSpec *typespec, ValueHandle handle);
void append_input_constant(llvm::BasicBlock *block, std::vector<llvm::Value*> &args,
const TypeSpec *typespec, const NodeConstant *node_value);
ValueHandle map_argument(llvm::BasicBlock *block, const TypeSpec *typespec, llvm::Argument *arg);
void store_return_value(llvm::BasicBlock *block, const TypeSpec *typespec,
ValueHandle handle, llvm::Value *arg);
llvm::Type *get_argument_type(const TypeSpec *spec) const;
llvm::Type *get_return_type(const TypeSpec *spec) const;
void append_input_types(FunctionParameterList ¶ms, const NodeInput *input) const;
void append_output_types(FunctionParameterList ¶ms, const NodeOutput *output) const;
llvm::Module *get_nodes_module() const { return m_nodes_module; }
bool use_argument_pointer(const TypeSpec *typespec, bool use_dual) const;
bool use_elementary_argument_pointer(const TypeSpec *typespec) const;
void define_node_function(llvm::Module *mod, OpCode op, const string &nodetype_name);
void define_nodes_module();
llvm::Function *declare_elementary_node_function(
llvm::Module *mod, const NodeType *nodetype, const string &name,
bool with_derivatives);
void define_elementary_functions(llvm::Module *mod, OpCode op, const NodeType *nodetype);
void define_dual_function_wrapper(llvm::Module *mod, llvm::Function *func, OpCode op, const NodeType *nodetype);
private:
static llvm::Module *m_nodes_module;
HandleValueMap m_values;
};
} /* namespace blenvm */
#endif /* __LLVM_COMPILER_H__ */
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