cerc-io/solidity
16
0
Fork 0
mirror of https://github.com/ethereum/solidity synced 2023-10-03 13:03:40 +00:00
Code Issues Actions Packages Projects Releases Wiki Activity

Merge pull request #6547 from ethereum/wasmPrototype

Browse Source 
[Yul] Wasm dialect.
This commit is contained in:
chriseth 2019-04-29 10:11:14 +02:00 committed by GitHub
commit d763e09f07
No known key found for this signature in database
GPG Key ID: 4AEE18F83AFDEB23
3 changed files with 132 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
libyul/CMakeLists.txt
View File

@ -38,6 +38,8 @@ add_library(yul
backends/evm/EVMObjectCompiler.h
backends/evm/NoOutputAssembly.h
backends/evm/NoOutputAssembly.cpp
backends/wasm/WasmDialect.cpp
backends/wasm/WasmDialect.h
optimiser/ASTCopier.cpp
optimiser/ASTCopier.h
optimiser/ASTWalker.cpp

75
libyul/backends/wasm/WasmDialect.cpp Normal file
View File

@ -0,0 +1,75 @@
/*
This file is part of solidity.
solidity 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 3 of the License, or
(at your option) any later version.
solidity 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 solidity. If not, see <http://www.gnu.org/licenses/>.
*/
/**
* Dialects for Wasm.
*/
#include <libyul/backends/wasm/WasmDialect.h>
using namespace std;
using namespace yul;
WasmDialect::WasmDialect(AsmFlavour _flavour):
Dialect{_flavour}
{
for (auto const& name: {
"i64.add",
"i64.sub",
"i64.mul",
"i64.div_u",
"i64.rem_u",
"i64.and",
"i64.or",
"i64.xor",
"i64.shl",
"i64.shr_u",
"i64.eq",
"i64.ne",
"i64.lt_u",
"i64.gt_u",
"i64.le_u",
"i64.ge_u"
})
addFunction(name, 2, 1);
addFunction("i64.eqz", 1, 1);
addFunction("i64.store", 2, 0);
addFunction("i64.load", 1, 1);
addFunction("drop", 1, 0);
addFunction("unreachable", 0, 0);
}
BuiltinFunction const* WasmDialect::builtin(YulString _name) const
{
auto it = m_functions.find(_name);
if (it != m_functions.end())
return &it->second;
else
return nullptr;
}
void WasmDialect::addFunction(string _name, size_t _params, size_t _returns)
{
YulString name{std::move(_name)};
BuiltinFunction& f = m_functions[name];
f.name = name;
f.parameters.resize(_params);
f.returns.resize(_returns);
f.movable = false;
f.literalArguments = false;
}

55
libyul/backends/wasm/WasmDialect.h Normal file
View File

@ -0,0 +1,55 @@
/*
This file is part of solidity.
solidity 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 3 of the License, or
(at your option) any later version.
solidity 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 solidity. If not, see <http://www.gnu.org/licenses/>.
*/
/**
* Dialects for Wasm.
*/
#pragma once
#include <libyul/Dialect.h>
#include <map>
namespace yul
{
class YulString;
using Type = YulString;
struct FunctionCall;
struct Object;
/**
* Yul dialect for Wasm as a backend.
*
* Builtin functions are a subset of the wasm instructions, always implicitly assuming
* unsigned 64 bit types.
*
* !This is subject to changes!
*/
struct WasmDialect: public Dialect
{
WasmDialect(AsmFlavour _flavour);
BuiltinFunction const* builtin(YulString _name) const override;
protected:
void addFunction(std::string _name, size_t _params, size_t _returns);
std::map<YulString, BuiltinFunction> m_functions;
};
}