In the Solidity documentation I see a sample assembly code:
{
mstore(0x40, 0x60) // store the "free memory pointer"
// function dispatcher
switch div(calldataload(0), exp(2, 226))
case 0xb3de648b {
let (r) = f(calldataload(4))
let ret := $allocate(0x20)
mstore(ret, r)
return(ret, 0x20)
}
default { revert(0, 0) }
// memory allocator
function $allocate(size) -> pos {
pos := mload(0x40)
mstore(0x40, add(pos, size))
}
// the contract function
function f(x) -> y {
y := 1
for { let i := 0 } lt(i, x) { i := add(i, 1) } {
y := mul(2, y)
}
}
}
that's generated from this Solidity code:
pragma solidity ^0.4.0;
contract C {
function f(uint x) returns (uint y) {
y = 1;
for (uint i = 0; i < x; i++)
y = 2 * y;
}
}
How can I generate the same assembly code with solc?
I know I can use --asm
option but it produces desugared code.