solidity/test/libsolidity/semanticTests/shifts/bitwise_shifting_constants_constantinople.sol

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contract C {
function shl_1() public returns (bool) {
uint256 c;
assembly {
c := shl(2, 1)
}
assert(c == 4);
return true;
}
function shl_2() public returns (bool) {
uint256 c;
assembly {
c := shl(
1,
0xffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff
)
}
assert(
c ==
0xfffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffe
);
return true;
}
function shl_3() public returns (bool) {
uint256 c;
assembly {
c := shl(
256,
0xffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff
)
}
assert(c == 0);
return true;
}
function shr_1() public returns (bool) {
uint256 c;
assembly {
c := shr(1, 3)
}
assert(c == 1);
return true;
}
function shr_2() public returns (bool) {
uint256 c;
assembly {
c := shr(
1,
0xffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff
)
}
assert(
c ==
0x7fffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff
);
return true;
}
function shr_3() public returns (bool) {
uint256 c;
assembly {
c := shr(
256,
0xffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff
)
}
assert(c == 0);
return true;
}
}
// ====
// EVMVersion: >=constantinople
// compileViaYul: also
// ----
// shl_1() -> 0x01
// shl_2() -> 0x01
// shl_3() -> 0x01
// shr_1() -> 0x01
// shr_2() -> 0x01
// shr_3() -> 0x01