mirror of
https://github.com/danog/ton.git
synced 2024-12-02 09:28:02 +01:00
330 lines
7.5 KiB
C++
330 lines
7.5 KiB
C++
/*
|
|
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
|
|
*/
|
|
#include "parser/srcread.h"
|
|
#include "func.h"
|
|
#include <iostream>
|
|
|
|
namespace funC {
|
|
|
|
/*
|
|
*
|
|
* ASM-OP LIST FUNCTIONS
|
|
*
|
|
*/
|
|
|
|
int is_pos_pow2(td::RefInt256 x) {
|
|
if (sgn(x) > 0 && !sgn(x & (x - 1))) {
|
|
return x->bit_size(false) - 1;
|
|
} else {
|
|
return -1;
|
|
}
|
|
}
|
|
|
|
int is_neg_pow2(td::RefInt256 x) {
|
|
return sgn(x) < 0 ? is_pos_pow2(-x) : 0;
|
|
}
|
|
|
|
std::ostream& operator<<(std::ostream& os, AsmOp::SReg stack_reg) {
|
|
int i = stack_reg.idx;
|
|
if (i >= 0) {
|
|
if (i < 16) {
|
|
return os << 's' << i;
|
|
} else {
|
|
return os << i << " s()";
|
|
}
|
|
} else if (i >= -2) {
|
|
return os << "s(" << i << ')';
|
|
} else {
|
|
return os << i << " s()";
|
|
}
|
|
}
|
|
|
|
AsmOp AsmOp::Const(int arg, std::string push_op) {
|
|
std::ostringstream os;
|
|
os << arg << ' ' << push_op;
|
|
return AsmOp::Const(os.str());
|
|
}
|
|
|
|
AsmOp AsmOp::make_stk2(int a, int b, const char* str, int delta) {
|
|
std::ostringstream os;
|
|
os << SReg(a) << ' ' << SReg(b) << ' ' << str;
|
|
int c = std::max(a, b) + 1;
|
|
return AsmOp::Custom(os.str(), c, c + delta);
|
|
}
|
|
|
|
AsmOp AsmOp::make_stk3(int a, int b, int c, const char* str, int delta) {
|
|
std::ostringstream os;
|
|
os << SReg(a) << ' ' << SReg(b) << ' ' << SReg(c) << ' ' << str;
|
|
int m = std::max(a, std::max(b, c)) + 1;
|
|
return AsmOp::Custom(os.str(), m, m + delta);
|
|
}
|
|
|
|
AsmOp AsmOp::BlkSwap(int a, int b) {
|
|
std::ostringstream os;
|
|
if (a == 1 && b == 1) {
|
|
return AsmOp::Xchg(0, 1);
|
|
} else if (a == 1) {
|
|
if (b == 2) {
|
|
os << "ROT";
|
|
} else {
|
|
os << b << " ROLL";
|
|
}
|
|
} else if (b == 1) {
|
|
if (a == 2) {
|
|
os << "-ROT";
|
|
} else {
|
|
os << a << " -ROLL";
|
|
}
|
|
} else {
|
|
os << a << " " << b << " BLKSWAP";
|
|
}
|
|
return AsmOp::Custom(os.str(), a + b, a + b);
|
|
}
|
|
|
|
AsmOp AsmOp::BlkPush(int a, int b) {
|
|
std::ostringstream os;
|
|
if (a == 1) {
|
|
return AsmOp::Push(b);
|
|
} else if (a == 2 && b == 1) {
|
|
os << "2DUP";
|
|
} else {
|
|
os << a << " " << b << " BLKPUSH";
|
|
}
|
|
return AsmOp::Custom(os.str(), b + 1, a + b + 1);
|
|
}
|
|
|
|
AsmOp AsmOp::BlkDrop(int a) {
|
|
std::ostringstream os;
|
|
if (a == 1) {
|
|
return AsmOp::Pop();
|
|
} else if (a == 2) {
|
|
os << "2DROP";
|
|
} else {
|
|
os << a << " BLKDROP";
|
|
}
|
|
return AsmOp::Custom(os.str(), a, 0);
|
|
}
|
|
|
|
AsmOp AsmOp::BlkReverse(int a, int b) {
|
|
std::ostringstream os;
|
|
os << a << " " << b << " REVERSE";
|
|
return AsmOp::Custom(os.str(), a + b, a + b);
|
|
}
|
|
|
|
AsmOp AsmOp::IntConst(td::RefInt256 x) {
|
|
if (x->signed_fits_bits(8)) {
|
|
return AsmOp::Const(dec_string(std::move(x)) + " PUSHINT");
|
|
}
|
|
if (!x->is_valid()) {
|
|
return AsmOp::Const("PUSHNAN");
|
|
}
|
|
int k = is_pos_pow2(x);
|
|
if (k >= 0) {
|
|
return AsmOp::Const(k, "PUSHPOW2");
|
|
}
|
|
k = is_pos_pow2(x + 1);
|
|
if (k >= 0) {
|
|
return AsmOp::Const(k, "PUSHPOW2DEC");
|
|
}
|
|
k = is_pos_pow2(-x);
|
|
if (k >= 0) {
|
|
return AsmOp::Const(k, "PUSHNEGPOW2");
|
|
}
|
|
return AsmOp::Const(dec_string(std::move(x)) + " PUSHINT");
|
|
}
|
|
|
|
AsmOp AsmOp::Parse(std::string custom_op) {
|
|
if (custom_op == "NOP") {
|
|
return AsmOp::Nop();
|
|
} else if (custom_op == "SWAP") {
|
|
return AsmOp::Xchg(1);
|
|
} else if (custom_op == "DROP") {
|
|
return AsmOp::Pop(0);
|
|
} else if (custom_op == "NIP") {
|
|
return AsmOp::Pop(1);
|
|
} else if (custom_op == "DUP") {
|
|
return AsmOp::Push(0);
|
|
} else if (custom_op == "OVER") {
|
|
return AsmOp::Push(1);
|
|
} else {
|
|
return AsmOp::Custom(custom_op);
|
|
}
|
|
}
|
|
|
|
AsmOp AsmOp::Parse(std::string custom_op, int args, int retv) {
|
|
auto res = Parse(custom_op);
|
|
if (res.is_custom()) {
|
|
res.a = args;
|
|
res.b = retv;
|
|
}
|
|
return res;
|
|
}
|
|
|
|
void AsmOp::out(std::ostream& os) const {
|
|
if (!op.empty()) {
|
|
os << op;
|
|
return;
|
|
}
|
|
switch (t) {
|
|
case a_none:
|
|
break;
|
|
case a_xchg:
|
|
if (!a && !(b & -2)) {
|
|
os << (b ? "SWAP" : "NOP");
|
|
break;
|
|
}
|
|
os << "s" << a << " s" << b << " XCHG";
|
|
break;
|
|
case a_push:
|
|
if (!(a & -2)) {
|
|
os << (a ? "OVER" : "DUP");
|
|
break;
|
|
}
|
|
os << "s" << a << " PUSH";
|
|
break;
|
|
case a_pop:
|
|
if (!(a & -2)) {
|
|
os << (a ? "NIP" : "DROP");
|
|
break;
|
|
}
|
|
os << "s" << a << " POP";
|
|
break;
|
|
default:
|
|
throw src::Fatal{"unknown assembler operation"};
|
|
}
|
|
}
|
|
|
|
void AsmOp::out_indent_nl(std::ostream& os, bool no_eol) const {
|
|
for (int i = 0; i < indent; i++) {
|
|
os << " ";
|
|
}
|
|
out(os);
|
|
if (!no_eol) {
|
|
os << std::endl;
|
|
}
|
|
}
|
|
|
|
std::string AsmOp::to_string() const {
|
|
if (!op.empty()) {
|
|
return op;
|
|
} else {
|
|
std::ostringstream os;
|
|
out(os);
|
|
return os.str();
|
|
}
|
|
}
|
|
|
|
bool AsmOpList::append(const std::vector<AsmOp>& ops) {
|
|
for (const auto& op : ops) {
|
|
if (!append(op)) {
|
|
return false;
|
|
}
|
|
}
|
|
return true;
|
|
}
|
|
|
|
const_idx_t AsmOpList::register_const(Const new_const) {
|
|
if (new_const.is_null()) {
|
|
return not_const;
|
|
}
|
|
unsigned idx;
|
|
for (idx = 0; idx < constants_.size(); idx++) {
|
|
if (!td::cmp(new_const, constants_[idx])) {
|
|
return idx;
|
|
}
|
|
}
|
|
constants_.push_back(std::move(new_const));
|
|
return (const_idx_t)idx;
|
|
}
|
|
|
|
Const AsmOpList::get_const(const_idx_t idx) {
|
|
if ((unsigned)idx < constants_.size()) {
|
|
return constants_[idx];
|
|
} else {
|
|
return {};
|
|
}
|
|
}
|
|
|
|
void AsmOpList::show_var(std::ostream& os, var_idx_t idx) const {
|
|
if (!var_names_ || (unsigned)idx >= var_names_->size()) {
|
|
os << '_' << idx;
|
|
} else {
|
|
var_names_->at(idx).show(os, 2);
|
|
}
|
|
}
|
|
|
|
void AsmOpList::show_var_ext(std::ostream& os, std::pair<var_idx_t, const_idx_t> idx_pair) const {
|
|
auto i = idx_pair.first;
|
|
auto j = idx_pair.second;
|
|
if (!var_names_ || (unsigned)i >= var_names_->size()) {
|
|
os << '_' << i;
|
|
} else {
|
|
var_names_->at(i).show(os, 2);
|
|
}
|
|
if ((unsigned)j < constants_.size() && constants_[j].not_null()) {
|
|
os << '=' << constants_[j];
|
|
}
|
|
}
|
|
|
|
void AsmOpList::out(std::ostream& os, int mode) const {
|
|
if (!(mode & 2)) {
|
|
for (const auto& op : list_) {
|
|
op.out_indent_nl(os);
|
|
}
|
|
} else {
|
|
std::size_t n = list_.size();
|
|
for (std::size_t i = 0; i < n; i++) {
|
|
const auto& op = list_[i];
|
|
if (!op.is_comment() && i + 1 < n && list_[i + 1].is_comment()) {
|
|
op.out_indent_nl(os, true);
|
|
os << '\t';
|
|
do {
|
|
i++;
|
|
} while (i + 1 < n && list_[i + 1].is_comment());
|
|
list_[i].out(os);
|
|
os << std::endl;
|
|
} else {
|
|
op.out_indent_nl(os, false);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
bool apply_op(StackTransform& trans, const AsmOp& op) {
|
|
if (!trans.is_valid()) {
|
|
return false;
|
|
}
|
|
switch (op.t) {
|
|
case AsmOp::a_none:
|
|
return true;
|
|
case AsmOp::a_xchg:
|
|
return trans.apply_xchg(op.a, op.b, true);
|
|
case AsmOp::a_push:
|
|
return trans.apply_push(op.a);
|
|
case AsmOp::a_pop:
|
|
return trans.apply_pop(op.a);
|
|
case AsmOp::a_const:
|
|
return !op.a && op.b == 1 && trans.apply_push_newconst();
|
|
default:
|
|
return false;
|
|
}
|
|
}
|
|
|
|
} // namespace funC
|