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func.h
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/*
This file is part of TON Blockchain Library.
TON Blockchain Library is free software: you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as published by
the Free Software Foundation, either version 2 of the License, or
(at your option) any later version.
TON Blockchain Library 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 Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public License
along with TON Blockchain Library. If not, see <http://www.gnu.org/licenses/>.
Copyright 2017-2019 Telegram Systems LLP
*/
#pragma once
#include <vector>
#include <string>
#include <stack>
#include <utility>
#include <algorithm>
#include <iostream>
#include <functional>
#include "common/refcnt.hpp"
#include "common/bigint.hpp"
#include "common/refint.h"
#include "parser/srcread.h"
#include "parser/lexer.h"
#include "parser/symtable.h"
namespace funC {
extern int verbosity;
extern bool op_rewrite_comments;
constexpr int optimize_depth = 12;
enum Keyword {
_Eof = -1,
_Ident = 0,
_Number,
_Special,
_String,
_Return = 0x80,
_Var,
_Repeat,
_Do,
_While,
_Until,
_If,
_Ifnot,
_Then,
_Else,
_Elseif,
_Elseifnot,
_Eq,
_Neq,
_Leq,
_Geq,
_Spaceship,
_Lshift,
_Rshift,
_RshiftR,
_RshiftC,
_DivR,
_DivC,
_DivMod,
_PlusLet,
_MinusLet,
_TimesLet,
_DivLet,
_DivRLet,
_DivCLet,
_ModLet,
_LshiftLet,
_RshiftLet,
_RshiftRLet,
_RshiftCLet,
_Int,
_Cell,
_Slice,
_Builder,
_Cont,
_Tuple,
_Type,
_Mapsto,
_Asm,
_Impure,
_Extern,
_MethodId,
_Operator,
_Infix,
_Infixl,
_Infixr
};
void define_keywords();
class IdSc {
int cls;
public:
enum { undef = 0, dotid = 1, tildeid = 2 };
IdSc(int _cls = undef) : cls(_cls) {
}
operator int() {
return cls;
}
};
// symbol subclass:
// 1 = begins with . (a const method)
// 2 = begins with ~ (a non-const method)
// 0 = else
/*
*
* TYPE EXPRESSIONS
*
*/
struct TypeExpr {
enum te_type { te_Unknown, te_Indirect, te_Atomic, te_Tensor, te_Map, te_Type, te_ForAll } constr;
enum {
_Int = Keyword::_Int,
_Cell = Keyword::_Cell,
_Slice = Keyword::_Slice,
_Builder = Keyword::_Builder,
_Cont = Keyword::_Cont,
_Tuple = Keyword::_Tuple,
_Type = Keyword::_Type
};
int value;
int minw, maxw;
static constexpr int w_inf = 1023;
std::vector<TypeExpr*> args;
TypeExpr(te_type _constr, int _val = 0) : constr(_constr), value(_val), minw(0), maxw(w_inf) {
}
TypeExpr(te_type _constr, int _val, int width) : constr(_constr), value(_val), minw(width), maxw(width) {
}
TypeExpr(te_type _constr, std::vector<TypeExpr*> list)
: constr(_constr), value((int)list.size()), args(std::move(list)) {
compute_width();
}
TypeExpr(te_type _constr, std::initializer_list<TypeExpr*> list)
: constr(_constr), value((int)list.size()), args(std::move(list)) {
compute_width();
}
TypeExpr(te_type _constr, TypeExpr* elem0, std::vector<TypeExpr*> list)
: constr(_constr), value((int)list.size() + 1), args{elem0} {
args.insert(args.end(), list.begin(), list.end());
compute_width();
}
TypeExpr(te_type _constr, TypeExpr* elem0, std::initializer_list<TypeExpr*> list)
: constr(_constr), value((int)list.size() + 1), args{elem0} {
args.insert(args.end(), list.begin(), list.end());
compute_width();
}
bool is_atomic() const {
return constr == te_Atomic;
}
bool is_atomic(int v) const {
return constr == te_Atomic && value == v;
}
bool is_int() const {
return is_atomic(_Int);
}
bool has_fixed_width() const {
return minw == maxw;
}
int get_width() const {
return has_fixed_width() ? minw : -1;
}
void compute_width();
bool recompute_width();
void show_width(std::ostream& os);
std::ostream& print(std::ostream& os, int prio = 0);
void replace_with(TypeExpr* te2);
int extract_components(std::vector<TypeExpr*>& comp_list);
static int holes, type_vars;
static TypeExpr* new_hole() {
return new TypeExpr{te_Unknown, ++holes};
}
static TypeExpr* new_hole(int width) {
return new TypeExpr{te_Unknown, ++holes, width};
}
static TypeExpr* new_unit() {
return new TypeExpr{te_Tensor, 0, 0};
}
static TypeExpr* new_atomic(int value) {
return new TypeExpr{te_Atomic, value, 1};
}
static TypeExpr* new_map(TypeExpr* from, TypeExpr* to);
static TypeExpr* new_func() {
return new_map(new_hole(), new_hole());
}
static TypeExpr* new_tensor(std::vector<TypeExpr*> list, bool red = true) {
return red && list.size() == 1 ? list[0] : new TypeExpr{te_Tensor, std::move(list)};
}
static TypeExpr* new_tensor(std::initializer_list<TypeExpr*> list) {
return new TypeExpr{te_Tensor, std::move(list)};
}
static TypeExpr* new_tensor(TypeExpr* te1, TypeExpr* te2) {
return new_tensor({te1, te2});
}
static TypeExpr* new_tensor(TypeExpr* te1, TypeExpr* te2, TypeExpr* te3) {
return new_tensor({te1, te2, te3});
}
static TypeExpr* new_var() {
return new TypeExpr{te_Unknown, --type_vars, 1};
}
static TypeExpr* new_forall(std::vector<TypeExpr*> list, TypeExpr* body) {
return new TypeExpr{te_ForAll, body, std::move(list)};
}
static TypeExpr* new_forall(std::initializer_list<TypeExpr*> list, TypeExpr* body) {
return new TypeExpr{te_ForAll, body, std::move(list)};
}
static bool remove_indirect(TypeExpr*& te, TypeExpr* forbidden = nullptr);
static bool remove_forall(TypeExpr*& te);
static bool remove_forall_in(TypeExpr*& te, TypeExpr* te2, const std::vector<TypeExpr*>& new_vars);
};
std::ostream& operator<<(std::ostream& os, TypeExpr* type_expr);
struct UnifyError {
TypeExpr* te1;
TypeExpr* te2;
std::string msg;
UnifyError(TypeExpr* _te1, TypeExpr* _te2, std::string _msg = "") : te1(_te1), te2(_te2), msg(_msg) {
}
void print_message(std::ostream& os) const;
std::string message() const;
};
std::ostream& operator<<(std::ostream& os, const UnifyError& ue);
void unify(TypeExpr*& te1, TypeExpr*& te2);
// extern int TypeExpr::holes;
/*
*
* ABSTRACT CODE
*
*/
using src::Lexem;
using src::SrcLocation;
using sym::SymDef;
using sym::sym_idx_t;
using sym::var_idx_t;
using const_idx_t = int;
struct TmpVar {
TypeExpr* v_type;
var_idx_t idx;
enum { _In = 1, _Named = 2, _Tmp = 4, _UniqueName = 0x20 };
int cls;
sym_idx_t name;
int coord;
std::unique_ptr<SrcLocation> where;
TmpVar(var_idx_t _idx, int _cls, TypeExpr* _type = 0, SymDef* sym = 0, const SrcLocation* loc = 0);
void show(std::ostream& os, int omit_idx = 0) const;
void dump(std::ostream& os) const;
void set_location(const SrcLocation& loc);
};
struct VarDescr {
var_idx_t idx;
enum { _Last = 1, _Unused = 2 };
int flags;
enum {
_Const = 16,
_Int = 32,
_Zero = 64,
_NonZero = 128,
_Pos = 256,
_Neg = 512,
_Bool = 1024,
_Bit = 2048,
_Finite = 4096,
_Nan = 8192,
_Even = 16384,
_Odd = 32768,
_Null = (1 << 16),
_NotNull = (1 << 17)
};
static constexpr int ConstZero = _Int | _Zero | _Pos | _Neg | _Bool | _Bit | _Finite | _Even | _NotNull;
static constexpr int ConstOne = _Int | _NonZero | _Pos | _Bit | _Finite | _Odd | _NotNull;
static constexpr int ConstTrue = _Int | _NonZero | _Neg | _Bool | _Finite | _Odd | _NotNull;
static constexpr int ValBit = ConstZero & ConstOne;
static constexpr int ValBool = ConstZero & ConstTrue;
static constexpr int FiniteInt = _Int | _Finite | _NotNull;
static constexpr int FiniteUInt = FiniteInt | _Pos;
int val;
td::RefInt256 int_const;
VarDescr(var_idx_t _idx = -1, int _flags = 0, int _val = 0) : idx(_idx), flags(_flags), val(_val) {
}
bool operator<(var_idx_t other_idx) const {
return idx < other_idx;
}
bool is_unused() const {
return flags & _Unused;
}
bool is_last() const {
return flags & _Last;
}
bool always_true() const {
return val & _NonZero;
}
bool always_false() const {
return val & _Zero;
}
bool always_nonzero() const {
return val & _NonZero;
}
bool always_zero() const {
return val & _Zero;
}
bool always_even() const {
return val & _Even;
}
bool always_odd() const {
return val & _Odd;
}
bool always_null() const {
return val & _Null;
}
bool always_not_null() const {
return val & _NotNull;
}
bool is_const() const {
return val & _Const;
}
bool is_int_const() const {
return (val & (_Int | _Const)) == (_Int | _Const);
}
bool always_nonpos() const {
return val & _Neg;
}
bool always_nonneg() const {
return val & _Pos;
}
bool always_pos() const {
return (val & (_Pos | _NonZero)) == (_Pos | _NonZero);
}
bool always_neg() const {
return (val & (_Neg | _NonZero)) == (_Neg | _NonZero);
}
bool always_finite() const {
return val & _Finite;
}
bool always_less(const VarDescr& other) const;
bool always_leq(const VarDescr& other) const;
bool always_greater(const VarDescr& other) const;
bool always_geq(const VarDescr& other) const;
bool always_equal(const VarDescr& other) const;
bool always_neq(const VarDescr& other) const;
void unused() {
flags |= _Unused;
}
void clear_unused() {
flags &= ~_Unused;
}
void set_const(long long value);
void set_const(td::RefInt256 value);
void set_const_nan();
void operator+=(const VarDescr& y) {
flags &= y.flags;
}
void operator|=(const VarDescr& y);
void operator&=(const VarDescr& y);
void set_value(const VarDescr& y);
void set_value(VarDescr&& y);
void set_value(const VarDescr* y) {
if (y) {
set_value(*y);
}
}
void clear_value();
void show_value(std::ostream& os) const;
void show(std::ostream& os, const char* var_name = nullptr) const;
};
inline std::ostream& operator<<(std::ostream& os, const VarDescr& vd) {
vd.show(os);
return os;
}
struct VarDescrList {
std::vector<VarDescr> list;
VarDescrList() : list() {
}
VarDescrList(const std::vector<VarDescr>& _list) : list(_list) {
}
VarDescrList(std::vector<VarDescr>&& _list) : list(std::move(_list)) {
}
std::size_t size() const {
return list.size();
}
VarDescr* operator[](var_idx_t idx);
const VarDescr* operator[](var_idx_t idx) const;
VarDescrList operator+(const VarDescrList& y) const;
VarDescrList& operator+=(const VarDescrList& y);
VarDescrList& clear_last();
VarDescrList& operator+=(var_idx_t idx) {
return add_var(idx);
}
VarDescrList& operator+=(const std::vector<var_idx_t>& idx_list) {
return add_vars(idx_list);
}
VarDescrList& add_var(var_idx_t idx, bool unused = false);
VarDescrList& add_vars(const std::vector<var_idx_t>& idx_list, bool unused = false);
VarDescrList& operator-=(const std::vector<var_idx_t>& idx_list);
VarDescrList& operator-=(var_idx_t idx);
std::size_t count(const std::vector<var_idx_t> idx_list) const;
std::size_t count_used(const std::vector<var_idx_t> idx_list) const;
VarDescr& add(var_idx_t idx);
VarDescr& add_newval(var_idx_t idx);
VarDescrList& operator&=(const VarDescrList& values);
VarDescrList& import_values(const VarDescrList& values);
VarDescrList operator|(const VarDescrList& y) const;
VarDescrList& operator|=(const VarDescrList& values);
void show(std::ostream& os) const;
};
inline std::ostream& operator<<(std::ostream& os, const VarDescrList& values) {
values.show(os);
return os;
}
struct CodeBlob;
template <typename T>
class ListIterator {
T* ptr;
public:
ListIterator() : ptr(nullptr) {
}
ListIterator(T* _ptr) : ptr(_ptr) {
}
ListIterator& operator++() {
ptr = ptr->next.get();
return *this;
}
ListIterator& operator++(int) {
T* z = ptr;
ptr = ptr->next.get();
return ListIterator{z};
}
T& operator*() const {
return *ptr;
}
T* operator->() const {
return ptr;
}
bool operator==(const ListIterator& y) const {
return ptr == y.ptr;
}
bool operator!=(const ListIterator& y) const {
return ptr != y.ptr;
}
};
struct Stack;
struct Op {
enum {
_Undef,
_Nop,
_Call,
_CallInd,
_Let,
_IntConst,
_GlobVar,
_Import,
_Return,
_If,
_While,
_Until,
_Repeat,
_Again
};
int cl;
enum { _Disabled = 1, _Reachable = 2, _NoReturn = 4, _ImpureR = 8, _ImpureW = 16, _Impure = 24 };
int flags;
std::unique_ptr<Op> next;
SymDef* fun_ref;
SrcLocation where;
VarDescrList var_info;
std::vector<VarDescr> args;
std::vector<var_idx_t> left, right;
std::unique_ptr<Op> block0, block1;
td::RefInt256 int_const;
Op(const SrcLocation& _where = {}, int _cl = _Undef) : cl(_cl), flags(0), fun_ref(nullptr), where(_where) {
}
Op(const SrcLocation& _where, int _cl, const std::vector<var_idx_t>& _left)
: cl(_cl), flags(0), fun_ref(nullptr), where(_where), left(_left) {
}
Op(const SrcLocation& _where, int _cl, std::vector<var_idx_t>&& _left)
: cl(_cl), flags(0), fun_ref(nullptr), where(_where), left(std::move(_left)) {
}
Op(const SrcLocation& _where, int _cl, const std::vector<var_idx_t>& _left, td::RefInt256 _const)
: cl(_cl), flags(0), fun_ref(nullptr), where(_where), left(_left), int_const(_const) {
}
Op(const SrcLocation& _where, int _cl, const std::vector<var_idx_t>& _left, const std::vector<var_idx_t>& _right,
SymDef* _fun = nullptr)
: cl(_cl), flags(0), fun_ref(_fun), where(_where), left(_left), right(_right) {
}
Op(const SrcLocation& _where, int _cl, std::vector<var_idx_t>&& _left, std::vector<var_idx_t>&& _right,
SymDef* _fun = nullptr)
: cl(_cl), flags(0), fun_ref(_fun), where(_where), left(std::move(_left)), right(std::move(_right)) {
}
bool disabled() const {
return flags & _Disabled;
}
bool enabled() const {
return !disabled();
}
void disable() {
flags |= _Disabled;
}
bool unreachable() {
return !(flags & _Reachable);
}
void flags_set_clear(int set, int clear);
void show(std::ostream& os, const std::vector<TmpVar>& vars, std::string pfx = "", int mode = 0) const;
void show_var_list(std::ostream& os, const std::vector<var_idx_t>& idx_list, const std::vector<TmpVar>& vars) const;
void show_var_list(std::ostream& os, const std::vector<VarDescr>& list, const std::vector<TmpVar>& vars) const;
static void show_block(std::ostream& os, const Op* block, const std::vector<TmpVar>& vars, std::string pfx = "",
int mode = 0);
void split_vars(const std::vector<TmpVar>& vars);
static void split_var_list(std::vector<var_idx_t>& var_list, const std::vector<TmpVar>& vars);
bool compute_used_vars(const CodeBlob& code, bool edit);
bool std_compute_used_vars(bool disabled = false);
bool set_var_info(const VarDescrList& new_var_info);
bool set_var_info(VarDescrList&& new_var_info);
bool set_var_info_except(const VarDescrList& new_var_info, const std::vector<var_idx_t>& var_list);
bool set_var_info_except(VarDescrList&& new_var_info, const std::vector<var_idx_t>& var_list);
void prepare_args(VarDescrList values);
VarDescrList fwd_analyze(VarDescrList values);
bool set_noreturn(bool nr);
bool mark_noreturn();
bool noreturn() const {
return flags & _NoReturn;
}
bool is_empty() const {
return cl == _Nop && !next;
}
bool is_pure() const {
return !(flags & _Impure);
}
bool generate_code_step(Stack& stack);
bool generate_code_all(Stack& stack);
Op& last() {
return next ? next->last() : *this;
}
const Op& last() const {
return next ? next->last() : *this;
}
ListIterator<Op> begin() {
return ListIterator<Op>{this};
}
ListIterator<Op> end() const {
return ListIterator<Op>{};
}
ListIterator<const Op> cbegin() {
return ListIterator<const Op>{this};
}
ListIterator<const Op> cend() const {
return ListIterator<const Op>{};
}
};
inline ListIterator<Op> begin(const std::unique_ptr<Op>& op_list) {
return ListIterator<Op>{op_list.get()};
}
inline ListIterator<Op> end(const std::unique_ptr<Op>& op_list) {
return ListIterator<Op>{};
}
inline ListIterator<const Op> cbegin(const Op* op_list) {
return ListIterator<const Op>{op_list};
}
inline ListIterator<const Op> cend(const Op* op_list) {
return ListIterator<const Op>{};
}
inline ListIterator<const Op> begin(const Op* op_list) {
return ListIterator<const Op>{op_list};
}
inline ListIterator<const Op> end(const Op* op_list) {
return ListIterator<const Op>{};
}
inline ListIterator<Op> begin(Op* op_list) {
return ListIterator<Op>{op_list};
}
inline ListIterator<Op> end(Op* op_list) {
return ListIterator<Op>{};
}
typedef std::tuple<TypeExpr*, SymDef*, SrcLocation> FormalArg;
typedef std::vector<FormalArg> FormalArgList;
struct AsmOpList;
struct CodeBlob {
int var_cnt, in_var_cnt, op_cnt;
TypeExpr* ret_type;
std::string name;
SrcLocation loc;
std::vector<TmpVar> vars;
std::unique_ptr<Op> ops;
std::unique_ptr<Op>* cur_ops;
std::stack<std::unique_ptr<Op>*> cur_ops_stack;
CodeBlob(TypeExpr* ret = nullptr) : var_cnt(0), in_var_cnt(0), op_cnt(0), ret_type(ret), cur_ops(&ops) {
}
template <typename... Args>
Op& emplace_back(const Args&... args) {
Op& res = *(*cur_ops = std::make_unique<Op>(args...));
cur_ops = &(res.next);
return res;
}
bool import_params(FormalArgList arg_list);
var_idx_t create_var(int cls, TypeExpr* var_type = 0, SymDef* sym = 0, const SrcLocation* loc = 0);
int split_vars(bool strict = false);
bool compute_used_code_vars();
bool compute_used_code_vars(std::unique_ptr<Op>& ops, const VarDescrList& var_info, bool edit) const;
void print(std::ostream& os, int flags = 0) const;
void push_set_cur(std::unique_ptr<Op>& new_cur_ops) {
cur_ops_stack.push(cur_ops);
cur_ops = &new_cur_ops;
}
void close_blk(const SrcLocation& location) {
*cur_ops = std::make_unique<Op>(location, Op::_Nop);
}
void pop_cur() {
cur_ops = cur_ops_stack.top();
cur_ops_stack.pop();
}
void close_pop_cur(const SrcLocation& location) {
close_blk(location);
pop_cur();
}
void simplify_var_types();
void flags_set_clear(int set, int clear);
void prune_unreachable_code();
void fwd_analyze();
void mark_noreturn();
void generate_code(AsmOpList& out_list, int mode = 0);
void generate_code(std::ostream& os, int mode = 0, int indent = 0);
};
/*
*
* SYMBOL VALUES
*
*/
struct SymVal : sym::SymValBase {
TypeExpr* sym_type;
td::RefInt256 method_id;
bool impure;
SymVal(int _type, int _idx, TypeExpr* _stype = nullptr, bool _impure = false)
: sym::SymValBase(_type, _idx), sym_type(_stype), impure(_impure) {
}
~SymVal() override = default;
TypeExpr* get_type() const {
return sym_type;
}
virtual const std::vector<int>* get_arg_order() const {
return nullptr;
}
virtual const std::vector<int>* get_ret_order() const {
return nullptr;
}
};
struct SymValFunc : SymVal {
std::vector<int> arg_order, ret_order;
~SymValFunc() override = default;
SymValFunc(int val, TypeExpr* _ft, bool _impure = false) : SymVal(_Func, val, _ft, _impure) {
}
SymValFunc(int val, TypeExpr* _ft, std::initializer_list<int> _arg_order, std::initializer_list<int> _ret_order = {},
bool _impure = false)
: SymVal(_Func, val, _ft, _impure), arg_order(_arg_order), ret_order(_ret_order) {
}
const std::vector<int>* get_arg_order() const override {
return arg_order.empty() ? nullptr : &arg_order;
}
const std::vector<int>* get_ret_order() const override {
return ret_order.empty() ? nullptr : &ret_order;
}
};
struct SymValCodeFunc : SymValFunc {
CodeBlob* code;
~SymValCodeFunc() override = default;
SymValCodeFunc(int val, TypeExpr* _ft, bool _impure = false) : SymValFunc(val, _ft, _impure), code(nullptr) {
}
};
extern int glob_func_cnt, undef_func_cnt;
extern std::vector<SymDef*> glob_func;
/*
*
* PARSE SOURCE
*
*/
// defined in parse-func.cpp
bool parse_source(std::istream* is, const src::FileDescr* fdescr);
bool parse_source_file(const char* filename);
bool parse_source_stdin();
/*
*
* EXPRESSIONS
*
*/
struct Expr {
enum {
_None,
_Apply,
_VarApply,
_TypeApply,
_Tuple,
_Const,
_Var,
_Glob,
_Letop,
_LetFirst,
_Hole,
_Type,
_CondExpr
};
int cls;
int val{0};
enum { _IsType = 1, _IsRvalue = 2, _IsLvalue = 4, _IsHole = 8, _IsNewVar = 16, _IsImpure = 32 };
int flags{0};
SrcLocation here;
td::RefInt256 intval;
SymDef* sym{nullptr};
TypeExpr* e_type{nullptr};
std::vector<Expr*> args;
Expr(int c = _None) : cls(c) {
}
Expr(int c, const SrcLocation& loc) : cls(c), here(loc) {
}
Expr(int c, std::vector<Expr*> _args) : cls(c), args(std::move(_args)) {
}
Expr(int c, std::initializer_list<Expr*> _arglist) : cls(c), args(std::move(_arglist)) {
}
Expr(int c, SymDef* _sym, std::initializer_list<Expr*> _arglist) : cls(c), sym(_sym), args(std::move(_arglist)) {
}
Expr(int c, SymDef* _sym, std::vector<Expr*> _arglist) : cls(c), sym(_sym), args(std::move(_arglist)) {
}
Expr(int c, sym_idx_t name_idx, std::initializer_list<Expr*> _arglist);
~Expr() {
for (auto& arg_ptr : args) {
delete arg_ptr;
}
}
Expr* copy() const;
void pb_arg(Expr* expr) {
args.push_back(expr);
}
void set_val(int _val) {
val = _val;
}
bool is_rvalue() const {
return flags & _IsRvalue;
}
bool is_lvalue() const {
return flags & _IsLvalue;
}
bool is_type() const {
return flags & _IsType;
}
void chk_rvalue(const Lexem& lem) const;
void chk_lvalue(const Lexem& lem) const;
void chk_type(const Lexem& lem) const;
bool deduce_type(const Lexem& lem);
void set_location(const SrcLocation& loc) {
here = loc;
}
const SrcLocation& get_location() const {
return here;
}
int define_new_vars(CodeBlob& code);
int predefine_vars();
std::vector<var_idx_t> pre_compile(CodeBlob& code) const;
};
/*
*
* GENERATE CODE
*
*/
typedef std::vector<var_idx_t> StackLayout;
typedef std::pair<var_idx_t, const_idx_t> var_const_idx_t;
typedef std::vector<var_const_idx_t> StackLayoutExt;
constexpr const_idx_t not_const = -1;
using Const = td::RefInt256;
struct AsmOp {
enum Type { a_none, a_xchg, a_push, a_pop, a_const, a_custom, a_magic };
int t{a_none};
int indent{0};
int a, b, c;
std::string op;
struct SReg {
int idx;
SReg(int _idx) : idx(_idx) {
}
};
AsmOp() = default;
AsmOp(int _t) : t(_t) {
}
AsmOp(int _t, std::string _op) : t(_t), op(std::move(_op)) {
}
AsmOp(int _t, int _a) : t(_t), a(_a) {
}
AsmOp(int _t, int _a, std::string _op) : t(_t), a(_a), op(std::move(_op)) {
}
AsmOp(int _t, int _a, int _b) : t(_t), a(_a), b(_b) {
}
AsmOp(int _t, int _a, int _b, std::string _op) : t(_t), a(_a), b(_b), op(std::move(_op)) {
}
AsmOp(int _t, int _a, int _b, int _c) : t(_t), a(_a), b(_b), c(_c) {
}
AsmOp(int _t, int _a, int _b, int _c, std::string _op) : t(_t), a(_a), b(_b), c(_c), op(std::move(_op)) {
}
void out(std::ostream& os) const;
void out_indent_nl(std::ostream& os, bool no_nl = false) const;
std::string to_string() const;
bool is_nop() const {
return t == a_none && op.empty();
}
bool is_comment() const {
return t == a_none && !op.empty();
}
bool is_custom() const {
return t == a_custom;
}
bool is_very_custom() const {
return is_custom() && a >= 255;
}
bool is_push() const {
return t == a_push;
}
bool is_push(int x) const {
return is_push() && a == x;
}
bool is_push(int* x) const {
*x = a;
return is_push();
}
bool is_pop() const {
return t == a_pop;
}
bool is_pop(int x) const {
return is_pop() && a == x;
}
bool is_xchg() const {
return t == a_xchg;
}
bool is_xchg(int x, int y) const {
return is_xchg() && b == y && a == x;
}
bool is_xchg(int* x, int* y) const {
*x = a;
*y = b;
return is_xchg();
}
bool is_swap() const {
return is_xchg(0, 1);
}
bool is_const() const {
return t == a_const && !a && b == 1;
}
bool is_gconst() const {
return (t == a_const || t == a_custom) && !a && b == 1;
}
static AsmOp Nop() {
return AsmOp(a_none);
}
static AsmOp Xchg(int a, int b = 0) {
return a == b ? AsmOp(a_none) : (a < b ? AsmOp(a_xchg, a, b) : AsmOp(a_xchg, b, a));
}
static AsmOp Push(int a) {
return AsmOp(a_push, a);
}
static AsmOp Pop(int a = 0) {
return AsmOp(a_pop, a);
}
static AsmOp Xchg2(int a, int b) {
return make_stk2(a, b, "XCHG2", 0);
}
static AsmOp XcPu(int a, int b) {
return make_stk2(a, b, "XCPU", 1);
}
static AsmOp PuXc(int a, int b) {
return make_stk2(a, b, "PUXC", 1);
}
static AsmOp Push2(int a, int b) {
return make_stk2(a, b, "PUSH2", 2);
}
static AsmOp Xchg3(int a, int b, int c) {
return make_stk3(a, b, c, "XCHG3", 0);
}
static AsmOp Xc2Pu(int a, int b, int c) {
return make_stk3(a, b, c, "XC2PU", 1);
}
static AsmOp XcPuXc(int a, int b, int c) {
return make_stk3(a, b, c, "XCPUXC", 1);
}
static AsmOp XcPu2(int a, int b, int c) {
return make_stk3(a, b, c, "XCPU2", 3);
}
static AsmOp PuXc2(int a, int b, int c) {
return make_stk3(a, b, c, "PUXC2", 3);
}
static AsmOp PuXcPu(int a, int b, int c) {
return make_stk3(a, b, c, "PUXCPU", 3);
}
static AsmOp Pu2Xc(int a, int b, int c) {
return make_stk3(a, b, c, "PU2XC", 3);
}
static AsmOp Push3(int a, int b, int c) {
return make_stk3(a, b, c, "PUSH3", 3);
}
static AsmOp BlkSwap(int a, int b);
static AsmOp BlkPush(int a, int b);
static AsmOp BlkDrop(int a);
static AsmOp BlkReverse(int a, int b);
static AsmOp make_stk2(int a, int b, const char* str, int delta);
static AsmOp make_stk3(int a, int b, int c, const char* str, int delta);
static AsmOp IntConst(td::RefInt256 value);
static AsmOp Const(std::string push_op) {
return AsmOp(a_const, 0, 1, std::move(push_op));
}
static AsmOp Const(int arg, std::string push_op);
static AsmOp Comment(std::string comment) {
return AsmOp(a_none, std::string{"// "} + comment);
}
static AsmOp Custom(std::string custom_op) {
return AsmOp(a_custom, 255, 255, custom_op);
}
static AsmOp Parse(std::string custom_op);
static AsmOp Custom(std::string custom_op, int args, int retv = 1) {
return AsmOp(a_custom, args, retv, custom_op);
}
static AsmOp Parse(std::string custom_op, int args, int retv = 1);
};
inline std::ostream& operator<<(std::ostream& os, const AsmOp& op) {
op.out(os);
return os;
}
std::ostream& operator<<(std::ostream& os, AsmOp::SReg stack_reg);
struct AsmOpList {
std::vector<AsmOp> list_;
int indent_{0};
const std::vector<TmpVar>* var_names_{nullptr};
std::vector<Const> constants_;
void out(std::ostream& os, int mode = 0) const;
AsmOpList(int indent = 0, const std::vector<TmpVar>* var_names = nullptr) : indent_(indent), var_names_(var_names) {
}
template <typename... Args>
AsmOpList& add(Args&&... args) {
list_.emplace_back(std::forward<Args>(args)...);
adjust_last();
return *this;
}
bool append(const AsmOp& op) {
list_.push_back(op);
adjust_last();
return true;
}
bool append(const std::vector<AsmOp>& ops);
bool append(std::initializer_list<AsmOp> ops) {
return append(std::vector<AsmOp>(std::move(ops)));
}
AsmOpList& operator<<(const AsmOp& op) {