solidity/test/libsolidity/semanticTests/shifts/shift_right_garbled_signed_v2.sol
2020-05-06 19:14:23 +02:00

34 lines
1.2 KiB
Solidity

pragma experimental ABIEncoderV2;
contract C {
function f(int8 a, uint8 b) public returns (int256) {
assembly {
a := 0xfffffff0
}
// Higher bits should be signextended before the shift
return a >> b;
}
function g(int8 a, uint8 b) public returns (int256) {
assembly {
a := 0xf0
}
// Higher bits should be signextended before the shift
return a >> b;
}
}
// ====
// compileViaYul: also
// ----
// f(int8,uint8): 0x00, 0x03 -> 0xfffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffe
// f(int8,uint8): 0x00, 0x04 -> 0xffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff
// f(int8,uint8): 0x00, 0xff -> 0xffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff
// f(int8,uint8): 0x00, 0x1003 -> FAILURE
// f(int8,uint8): 0x00, 0x1004 -> FAILURE
// g(int8,uint8): 0x00, 0x03 -> 0xfffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffe
// g(int8,uint8): 0x00, 0x04 -> 0xffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff
// g(int8,uint8): 0x00, 0xff -> 0xffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff
// g(int8,uint8): 0x00, 0x1003 -> FAILURE
// g(int8,uint8): 0x00, 0x1004 -> FAILURE