mirror of
https://github.com/c64scene-ar/llvm-6502.git
synced 2024-12-19 01:34:32 +00:00
40bb451c94
Update to reflect ParseException becoming ParseError (from Parser.h) git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@29766 91177308-0d34-0410-b5e6-96231b3b80d8
225 lines
9.4 KiB
C++
225 lines
9.4 KiB
C++
//===-- StackerCompiler.h - Interface to the Stacker Compiler ---*- C++ -*-===//
|
|
//
|
|
// The LLVM Compiler Infrastructure
|
|
//
|
|
// This file was developed by Reid Spencer and donated to the LLVM research
|
|
// group and is distributed under the University of Illinois Open Source
|
|
// License. See LICENSE.TXT for details.
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
//
|
|
// This header file defines the various variables that are shared among the
|
|
// different components of the parser...
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
#ifndef LLVM_STACKERCOMPILER_H
|
|
#define LLVM_STACKERCOMPILER_H
|
|
|
|
#include <llvm/Constants.h>
|
|
#include <llvm/DerivedTypes.h>
|
|
#include <llvm/Function.h>
|
|
#include <llvm/Instruction.h>
|
|
#include <llvm/Module.h>
|
|
#include <llvm/Assembly/Parser.h>
|
|
#include <llvm/ADT/StringExtras.h>
|
|
|
|
using namespace llvm;
|
|
|
|
// Global variables exported from the lexer...
|
|
extern std::FILE *Stackerin;
|
|
extern int Stackerlineno;
|
|
extern char* Stackertext;
|
|
extern int Stackerleng;
|
|
|
|
/// @brief This class provides the Compiler for the Stacker language.
|
|
///
|
|
/// The main method to call is \c compile. The other methods are
|
|
/// all internal to the compiler and protected. In general the
|
|
/// handle_* methods are called by the BISON generated parser
|
|
/// (see StackerParser.y). The methods returning Instruction* all
|
|
/// produce some snippet of code to manipulate the stack in some
|
|
/// way. These functions are just conveniences as they are used
|
|
/// often by the compiler.
|
|
class StackerCompiler
|
|
{
|
|
/// @name Constructors and Operators
|
|
/// @{
|
|
public:
|
|
/// Default Constructor
|
|
StackerCompiler();
|
|
|
|
/// Destructor
|
|
~StackerCompiler();
|
|
private:
|
|
/// Do not copy StackerCompilers
|
|
StackerCompiler(const StackerCompiler&);
|
|
|
|
/// Do not copy StackerCompilers.
|
|
StackerCompiler& operator=(const StackerCompiler& );
|
|
|
|
/// @}
|
|
/// @name High Level Interface
|
|
/// @{
|
|
public:
|
|
/// @brief Compile a single file to LLVM bytecode.
|
|
///
|
|
/// To use the StackerCompiler, just create one on
|
|
/// the stack and call this method.
|
|
Module* compile(
|
|
const std::string& filename, ///< File to compile
|
|
bool echo, ///< Causes compiler to echo output
|
|
unsigned optLevel, ///< Level of optimization
|
|
size_t stack_size ); ///< Size of generated stack
|
|
/// @}
|
|
/// @name Accessors
|
|
/// @{
|
|
public:
|
|
/// @brief Returns the name of the file being compiled.
|
|
std::string& filename() { return CurFilename; }
|
|
|
|
/// @}
|
|
/// @name Parse Handling Methods
|
|
/// @{
|
|
private:
|
|
/// Allow only the parser to access these methods. No
|
|
/// one else should call them.
|
|
friend int Stackerparse();
|
|
|
|
/// @brief Handle the start of a module
|
|
Module* handle_module_start();
|
|
|
|
/// @brief Handle the end of a module
|
|
/// @param mod The module we're defining.
|
|
Module* handle_module_end( Module* mod );
|
|
|
|
/// @brief Handle the start of a list of definitions
|
|
Module* handle_definition_list_start( );
|
|
|
|
/// @brief Handle the end of a list of definitions
|
|
/// @param mod The module we're constructing
|
|
/// @param definition A definition (function) to add to the module
|
|
Module* handle_definition_list_end( Module* mod, Function* definition );
|
|
|
|
/// @brief Handle creation of the MAIN definition
|
|
/// @param func The function to be used as the MAIN definition
|
|
Function* handle_main_definition( Function* func );
|
|
|
|
/// @brief Handle a forward definition
|
|
/// @param name The name of the definition being declared
|
|
Function* handle_forward( char* name );
|
|
|
|
/// @brief Handle a general definition
|
|
/// @param name The name of the definition being defined
|
|
/// @param func The Function definition.
|
|
Function* handle_definition( char* name, Function* func );
|
|
|
|
/// @brief Handle the start of a definition's word list
|
|
Function* handle_word_list_start();
|
|
|
|
/// @brief Handle the end of a definition's word list
|
|
/// @param func The function to which the basic block is added
|
|
/// @param next The block to add to the function
|
|
Function* handle_word_list_end( Function* func, BasicBlock* next );
|
|
|
|
/// @brief Handle an if statement, possibly without an else
|
|
/// @brief ifTrue The block to execute if true
|
|
/// @brief ifFalse The optional block to execute if false
|
|
BasicBlock* handle_if( char* ifTrue, char* ifFalse = 0 );
|
|
|
|
/// @brief Handle a while statement
|
|
/// @brief todo The block to repeatedly execute
|
|
BasicBlock* handle_while( char* todo );
|
|
|
|
/// @brief Handle an identifier to call the identified definition
|
|
/// @param name The name of the identifier to be called.
|
|
BasicBlock* handle_identifier( char * name );
|
|
|
|
/// @brief Handle the push of a string onto the stack
|
|
/// @param value The string to be pushed.
|
|
BasicBlock* handle_string( char * value );
|
|
|
|
/// @brief Handle the push of an integer onto the stack.
|
|
/// @param value The integer value to be pushed.
|
|
BasicBlock* handle_integer( const int64_t value );
|
|
|
|
/// @brief Handle one of the reserved words (given as a token)
|
|
BasicBlock* handle_word( int tkn );
|
|
|
|
/// @}
|
|
/// @name Utility functions
|
|
/// @{
|
|
public:
|
|
/// @brief Throws an exception to indicate an error
|
|
/// @param message The message to be output
|
|
/// @param line Override for the current line no
|
|
static inline void ThrowException( const std::string &message,
|
|
int line = -1)
|
|
{
|
|
if (line == -1) line = Stackerlineno;
|
|
// TODO: column number in exception
|
|
ParseError Err;
|
|
Err.setError(TheInstance->CurFilename, message, line);
|
|
throw Err;
|
|
}
|
|
private:
|
|
/// @brief Generate code to increment the stack index
|
|
Instruction* incr_stack_index( BasicBlock* bb, Value* );
|
|
/// @brief Generate code to decrement the stack index.
|
|
Instruction* decr_stack_index( BasicBlock* bb, Value* );
|
|
/// @brief Generate code to dereference the top of stack.
|
|
Instruction* get_stack_pointer( BasicBlock* bb, Value* );
|
|
/// @brief Generate code to push any value onto the stack.
|
|
Instruction* push_value( BasicBlock* bb, Value* value );
|
|
/// @brief Generate code to push a constant integer onto the stack.
|
|
Instruction* push_integer( BasicBlock* bb, int64_t value );
|
|
/// @brief Generate code to pop an integer off the stack.
|
|
Instruction* pop_integer( BasicBlock* bb );
|
|
/// @brief Generate code to push a string pointer onto the stack.
|
|
Instruction* push_string( BasicBlock* bb, const char* value );
|
|
/// @brief Generate code to pop a string pointer off the stack.
|
|
Instruction* pop_string( BasicBlock* bb );
|
|
/// @brief Generate code to get the top stack element.
|
|
Instruction* stack_top( BasicBlock* bb, Value* index );
|
|
/// @brief Generate code to get the top stack element as a string.
|
|
Instruction* stack_top_string( BasicBlock* bb, Value* index );
|
|
/// @brief Generate code to replace the top element of the stack.
|
|
Instruction* replace_top( BasicBlock* bb, Value* new_top, Value* index);
|
|
|
|
/// @}
|
|
/// @name Data Members (used during parsing)
|
|
/// @{
|
|
public:
|
|
static StackerCompiler* TheInstance; ///< The instance for the parser
|
|
|
|
private:
|
|
std::string CurFilename; ///< Current file name
|
|
Module* TheModule; ///< Module instance we'll build
|
|
Function* TheFunction; ///< Function we're building
|
|
FunctionType* DefinitionType; ///< FT for Definitions
|
|
GlobalVariable* TheStack; ///< For referencing _stack_
|
|
GlobalVariable* TheIndex; ///< For referencing _index_
|
|
Function* TheScanf; ///< External input function
|
|
Function* ThePrintf; ///< External output function
|
|
Function* TheExit; ///< External exit function
|
|
GlobalVariable* StrFormat; ///< Format for strings
|
|
GlobalVariable* NumFormat; ///< Format for numbers
|
|
GlobalVariable* ChrFormat; ///< Format for chars
|
|
GlobalVariable* InStrFormat; ///< Format for input strings
|
|
GlobalVariable* InNumFormat; ///< Format for input numbers
|
|
GlobalVariable* InChrFormat; ///< Format for input chars
|
|
ConstantInt* Zero; ///< long constant 0
|
|
ConstantInt* One; ///< long constant 1
|
|
ConstantInt* Two; ///< long constant 2
|
|
ConstantInt* Three; ///< long constant 3
|
|
ConstantInt* Four; ///< long constant 4
|
|
ConstantInt* Five; ///< long constant 5
|
|
std::vector<Value*> no_arguments; ///< no arguments for Stacker
|
|
bool echo; ///< Echo flag
|
|
size_t stack_size; ///< Size of stack to gen.
|
|
ArrayType* stack_type; ///< The type of the stack
|
|
/// @}
|
|
};
|
|
|
|
#endif
|