solidity/test/libyul/CompilabilityChecker.cpp

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/*
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/>.
*/
/**
* Unit tests for the compilability checker.
*/
#include <test/Options.h>
#include <test/libyul/Common.h>
#include <libyul/backends/evm/EVMDialect.h>
#include <libyul/CompilabilityChecker.h>
using namespace std;
namespace yul
{
namespace test
{
namespace
{
string check(string const& _input)
{
shared_ptr<Block> ast = yul::test::parse(_input, false).first;
BOOST_REQUIRE(ast);
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map<YulString, int> functions = CompilabilityChecker::run(EVMDialect::strictAssemblyForEVM(dev::test::Options::get().evmVersion()), *ast);
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string out;
for (auto const& function: functions)
out += function.first.str() + ": " + to_string(function.second) + " ";
return out;
}
}
BOOST_AUTO_TEST_SUITE(CompilabilityChecker)
BOOST_AUTO_TEST_CASE(smoke_test)
{
string out = check("{}");
BOOST_CHECK_EQUAL(out, "");
}
BOOST_AUTO_TEST_CASE(simple_function)
{
string out = check("{ function f(a, b) -> x, y { x := a y := b } }");
BOOST_CHECK_EQUAL(out, "");
}
BOOST_AUTO_TEST_CASE(many_variables_few_uses)
{
string out = check(R"({
function f(a, b) -> x, y {
let r1 := 0
let r2 := 0
let r3 := 0
let r4 := 0
let r5 := 0
let r6 := 0
let r7 := 0
let r8 := 0
let r9 := 0
let r10 := 0
let r11 := 0
let r12 := 0
let r13 := 0
let r14 := 0
let r15 := 0
let r16 := 0
let r17 := 0
let r18 := 0
x := add(add(add(add(add(add(add(add(add(x, r9), r8), r7), r6), r5), r4), r3), r2), r1)
}
})");
BOOST_CHECK_EQUAL(out, "f: 4 ");
}
BOOST_AUTO_TEST_CASE(many_variables_many_uses)
{
string out = check(R"({
function f(a, b) -> x, y {
let r1 := 0
let r2 := 0
let r3 := 0
let r4 := 0
let r5 := 0
let r6 := 0
let r7 := 0
let r8 := 0
let r9 := 0
let r10 := 0
let r11 := 0
let r12 := 0
let r13 := 0
let r14 := 0
let r15 := 0
let r16 := 0
let r17 := 0
let r18 := 0
x := add(add(add(add(add(add(add(add(add(add(add(add(x, r12), r11), r10), r9), r8), r7), r6), r5), r4), r3), r2), r1)
}
})");
BOOST_CHECK_EQUAL(out, "f: 10 ");
}
BOOST_AUTO_TEST_CASE(many_return_variables)
{
string out = check(R"({
function f(a, b) -> r1, r2, r3, r4, r5, r6, r7, r8, r9, r10, r11, r12, r13, r14, r15, r16, r17, r18, r19 {
}
})");
BOOST_CHECK_EQUAL(out, "f: 5 ");
}
BOOST_AUTO_TEST_CASE(multiple_functions)
{
string out = check(R"({
function f(a, b) -> r1, r2, r3, r4, r5, r6, r7, r8, r9, r10, r11, r12, r13, r14, r15, r16, r17, r18, r19 {
}
function g(r1, r2, r3, r4, r5, r6, r7, r8, r9, r10, r11, r12, r13, r14, r15, r16, r17, r18, r19) -> x, y {
}
function h(x) {
let r1 := 0
let r2 := 0
let r3 := 0
let r4 := 0
let r5 := 0
let r6 := 0
let r7 := 0
let r8 := 0
let r9 := 0
let r10 := 0
let r11 := 0
let r12 := 0
let r13 := 0
let r14 := 0
let r15 := 0
let r16 := 0
let r17 := 0
let r18 := 0
x := add(add(add(add(add(add(add(add(add(add(add(add(x, r12), r11), r10), r9), r8), r7), r6), r5), r4), r3), r2), r1)
}
})");
BOOST_CHECK_EQUAL(out, "h: 9 g: 5 f: 5 ");
}
BOOST_AUTO_TEST_CASE(nested)
{
string out = check(R"({
function h(x) {
let r1 := 0
let r2 := 0
let r3 := 0
let r4 := 0
let r5 := 0
let r6 := 0
let r7 := 0
let r8 := 0
let r9 := 0
let r10 := 0
let r11 := 0
let r12 := 0
let r13 := 0
let r14 := 0
let r15 := 0
let r16 := 0
let r17 := 0
let r18 := 0
function f(a, b) -> t1, t2, t3, t4, t5, t6, t7, t8, t9, t10, t11, t12, t13, t14, t15, t16, t17, t18, t19 {
function g(s1, s2, s3, s4, s5, s6, s7, s8, s9, s10, s11, s12, s13, s14, s15, s16, s17, s18, s19) -> w, v {
}
}
x := add(add(add(add(add(add(add(add(add(add(add(add(x, r12), r11), r10), r9), r8), r7), r6), r5), r4), r3), r2), r1)
}
})");
BOOST_CHECK_EQUAL(out, "h: 9 ");
}
BOOST_AUTO_TEST_CASE(also_in_outer_block)
{
string out = check(R"({
let x := 0
let r1 := 0
let r2 := 0
let r3 := 0
let r4 := 0
let r5 := 0
let r6 := 0
let r7 := 0
let r8 := 0
let r9 := 0
let r10 := 0
let r11 := 0
let r12 := 0
let r13 := 0
let r14 := 0
let r15 := 0
let r16 := 0
let r17 := 0
let r18 := 0
x := add(add(add(add(add(add(add(add(add(add(add(add(x, r12), r11), r10), r9), r8), r7), r6), r5), r4), r3), r2), r1)
function g(s1, s2, s3, s4, s5, s6, s7, s8, s9, s10, s11, s12, s13, s14, s15, s16, s17, s18, s19) -> w, v {
}
})");
BOOST_CHECK_EQUAL(out, ": 9 ");
}
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BOOST_AUTO_TEST_SUITE_END()
}
}