mirror of
https://github.com/ethereum/solidity
synced 2023-10-03 13:03:40 +00:00
123 lines
4.7 KiB
Solidity
123 lines
4.7 KiB
Solidity
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contract C {
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function shl_zero(uint256 a) public returns (uint256 c) {
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assembly {
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c := shl(0, a)
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}
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}
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function shr_zero(uint256 a) public returns (uint256 c) {
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assembly {
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c := shr(0, a)
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}
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}
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function sar_zero(uint256 a) public returns (uint256 c) {
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assembly {
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c := sar(0, a)
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}
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}
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function shl_large(uint256 a) public returns (uint256 c) {
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assembly {
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c := shl(0x110, a)
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}
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}
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function shr_large(uint256 a) public returns (uint256 c) {
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assembly {
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c := shr(0x110, a)
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}
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}
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function sar_large(uint256 a) public returns (uint256 c) {
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assembly {
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c := sar(0x110, a)
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}
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}
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function shl_combined(uint256 a) public returns (uint256 c) {
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assembly {
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c := shl(4, shl(12, a))
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}
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}
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function shr_combined(uint256 a) public returns (uint256 c) {
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assembly {
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c := shr(4, shr(12, a))
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}
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}
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function sar_combined(uint256 a) public returns (uint256 c) {
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assembly {
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c := sar(4, sar(12, a))
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}
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}
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function shl_combined_large(uint256 a) public returns (uint256 c) {
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assembly {
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c := shl(0xd0, shl(0x40, a))
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}
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}
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function shl_combined_overflow(uint256 a) public returns (uint256 c) {
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assembly {
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c := shl(0x01, shl(not(0x00), a))
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}
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}
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function shr_combined_large(uint256 a) public returns (uint256 c) {
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assembly {
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c := shr(0xd0, shr(0x40, a))
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}
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}
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function shr_combined_overflow(uint256 a) public returns (uint256 c) {
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assembly {
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c := shr(0x01, shr(not(0x00), a))
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}
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}
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function sar_combined_large(uint256 a) public returns (uint256 c) {
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assembly {
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c := sar(0xd0, sar(0x40, a))
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}
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}
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}
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// ====
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// EVMVersion: >=constantinople
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// compileViaYul: also
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// ----
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// shl_zero(uint256): 0x00 -> 0x00
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// shl_zero(uint256): 0xffff -> 0xffff
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// shl_zero(uint256): 0xffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff -> 0xffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff
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// shr_zero(uint256): 0x00 -> 0x00
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// shr_zero(uint256): 0xffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff -> 0xffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff
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// sar_zero(uint256): 0x00 -> 0x00
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// sar_zero(uint256): 0xffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff -> 0xffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff
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// shl_large(uint256): 0x00 -> 0x00
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// shl_large(uint256): 0xffff -> 0x00
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// shl_large(uint256): 0xffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff -> 0x00
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// shr_large(uint256): 0x00 -> 0x00
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// shr_large(uint256): 0xffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff -> 0x00
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// sar_large(uint256): 0x00 -> 0x00
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// sar_large(uint256): 0x7fffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff -> 0x00
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// sar_large(uint256): 0xffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff -> 0xffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff
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// shl_combined(uint256): 0x00 -> 0x00
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// shl_combined(uint256): 0xffff -> 0xffff0000
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// shl_combined(uint256): 0xffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff -> 0xffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff0000
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// shr_combined(uint256): 0x00 -> 0x00
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// shr_combined(uint256): 0xffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff -> 0xffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff
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// sar_combined(uint256): 0x00 -> 0x00
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// sar_combined(uint256): 0x7fffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff -> 0x7fffffffffffffffffffffffffffffffffffffffffffffffffffffffffff
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// sar_combined(uint256): 0xffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff -> 0xffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff
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// shl_combined_large(uint256): 0x00 -> 0x00
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// shl_combined_large(uint256): 0xffff -> 0x00
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// shl_combined_large(uint256): 0xffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff -> 0x00
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// shl_combined_overflow(uint256): 0x02 -> 0x00
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// shr_combined_large(uint256): 0x00 -> 0x00
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// shr_combined_large(uint256): 0xffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff -> 0x00
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// shr_combined_overflow(uint256): 0x02 -> 0x00
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// sar_combined_large(uint256): 0x00 -> 0x00
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// sar_combined_large(uint256): 0x7fffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff -> 0x00
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// sar_combined_large(uint256): 0xffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff -> 0xffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff
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