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Add end to end tests for SHL/SHR/SAR instructions (constantinople only)

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This commit is contained in:
Alex Beregszaszi 2018-04-09 15:23:18 +01:00
parent cb352edd26
commit 5f76f47f2e
1 changed files with 129 additions and 0 deletions
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129
test/libsolidity/SolidityEndToEndTest.cpp
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@ -11141,6 +11141,135 @@ BOOST_AUTO_TEST_CASE(swap_peephole_optimisation)
BOOST_CHECK(callContractFunction("div(uint256,uint256)", u256(0), u256(1)) == encodeArgs(u256(0)));
}
BOOST_AUTO_TEST_CASE(bitwise_shifting_constantinople)
{
if (!dev::test::Options::get().evmVersion().hasBitwiseShifting())
return;
char const* sourceCode = R"(
contract C {
function shl(uint a, uint b) returns (uint c) {
assembly {
a
b
shl
=: c
}
}
function shr(uint a, uint b) returns (uint c) {
assembly {
a
b
shr
=: c
}
}
function sar(uint a, uint b) returns (uint c) {
assembly {
a
b
sar
=: c
}
}
}
)";
compileAndRun(sourceCode);
BOOST_CHECK(callContractFunction("shl(uint256,uint256)", u256(1), u256(2)) == encodeArgs(u256(4)));
BOOST_CHECK(callContractFunction("shl(uint256,uint256)", u256("0xffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff"), u256(1)) == encodeArgs(u256("0xfffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffe")));
BOOST_CHECK(callContractFunction("shl(uint256,uint256)", u256("0xffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff"), u256(256)) == encodeArgs(u256(0)));
BOOST_CHECK(callContractFunction("shr(uint256,uint256)", u256(3), u256(1)) == encodeArgs(u256(1)));
BOOST_CHECK(callContractFunction("shr(uint256,uint256)", u256("0xffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff"), u256(1)) == encodeArgs(u256("0x7fffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff")));
BOOST_CHECK(callContractFunction("shr(uint256,uint256)", u256("0xffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff"), u256(255)) == encodeArgs(u256(1)));
BOOST_CHECK(callContractFunction("shr(uint256,uint256)", u256("0xffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff"), u256(256)) == encodeArgs(u256(0)));
BOOST_CHECK(callContractFunction("sar(uint256,uint256)", u256(3), u256(1)) == encodeArgs(u256(1)));
BOOST_CHECK(callContractFunction("sar(uint256,uint256)", u256("0xffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff"), u256(1)) == encodeArgs(u256("0xffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff")));
BOOST_CHECK(callContractFunction("sar(uint256,uint256)", u256("0xffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff"), u256(255)) == encodeArgs(u256("0xffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff")));
BOOST_CHECK(callContractFunction("sar(uint256,uint256)", u256("0xffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff"), u256(256)) == encodeArgs(u256("0xffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff")));
}
BOOST_AUTO_TEST_CASE(bitwise_shifting_constants_constantinople)
{
if (!dev::test::Options::get().evmVersion().hasBitwiseShifting())
return;
char const* sourceCode = R"(
contract C {
function shl_1() returns (bool) {
uint c;
assembly {
1
2
shl
=: c
}
assert(c == 4);
return true;
}
function shl_2() returns (bool) {
uint c;
assembly {
0xffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff
1
shl
=: c
}
assert(c == 0xfffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffe);
return true;
}
function shl_3() returns (bool) {
uint c;
assembly {
0xffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff
256
shl
=: c
}
assert(c == 0);
return true;
}
function shr_1() returns (bool) {
uint c;
assembly {
3
1
shr
=: c
}
assert(c == 1);
return true;
}
function shr_2() returns (bool) {
uint c;
assembly {
0xffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff
1
shr
=: c
}
assert(c == 0x7fffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff);
return true;
}
function shr_3() returns (bool) {
uint c;
assembly {
0xffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff
256
shr
=: c
}
assert(c == 0);
return true;
}
}
)";
compileAndRun(sourceCode);
BOOST_CHECK(callContractFunction("shl_1()") == encodeArgs(u256(1)));
BOOST_CHECK(callContractFunction("shl_2()") == encodeArgs(u256(1)));
BOOST_CHECK(callContractFunction("shl_3()") == encodeArgs(u256(1)));
BOOST_CHECK(callContractFunction("shr_1()") == encodeArgs(u256(1)));
BOOST_CHECK(callContractFunction("shr_2()") == encodeArgs(u256(1)));
BOOST_CHECK(callContractFunction("shr_3()") == encodeArgs(u256(1)));
}
BOOST_AUTO_TEST_SUITE_END()
}