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Optimize ERC1167 proxy creation code by 1 opcode (#3329)

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This commit is contained in:
Philippe Dumonet
2022-04-09 00:27:11 +02:00
committed by GitHub
parent bc810db320
commit 28dd490726
2 changed files with 16 additions and 15 deletions
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30
contracts/proxy/Clones.sol
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@ -25,10 +25,10 @@ library Clones {
function clone(address implementation) internal returns (address instance) {
assembly {
let ptr := mload(0x40)
mstore(ptr, 0x3d602d80600a3d3981f3363d3d373d3d3d363d73000000000000000000000000)
mstore(add(ptr, 0x14), shl(0x60, implementation))
mstore(add(ptr, 0x28), 0x5af43d82803e903d91602b57fd5bf30000000000000000000000000000000000)
instance := create(0, ptr, 0x37)
mstore(ptr, 0x602d8060093d393df3363d3d373d3d3d363d7300000000000000000000000000)
mstore(add(ptr, 0x13), shl(0x60, implementation))
mstore(add(ptr, 0x27), 0x5af43d82803e903d91602b57fd5bf30000000000000000000000000000000000)
instance := create(0, ptr, 0x36)
}
require(instance != address(0), "ERC1167: create failed");
}
@ -43,10 +43,10 @@ library Clones {
function cloneDeterministic(address implementation, bytes32 salt) internal returns (address instance) {
assembly {
let ptr := mload(0x40)
mstore(ptr, 0x3d602d80600a3d3981f3363d3d373d3d3d363d73000000000000000000000000)
mstore(add(ptr, 0x14), shl(0x60, implementation))
mstore(add(ptr, 0x28), 0x5af43d82803e903d91602b57fd5bf30000000000000000000000000000000000)
instance := create2(0, ptr, 0x37, salt)
mstore(ptr, 0x602d8060093d393df3363d3d373d3d3d363d7300000000000000000000000000)
mstore(add(ptr, 0x13), shl(0x60, implementation))
mstore(add(ptr, 0x27), 0x5af43d82803e903d91602b57fd5bf30000000000000000000000000000000000)
instance := create2(0, ptr, 0x36, salt)
}
require(instance != address(0), "ERC1167: create2 failed");
}
@ -61,13 +61,13 @@ library Clones {
) internal pure returns (address predicted) {
assembly {
let ptr := mload(0x40)
mstore(ptr, 0x3d602d80600a3d3981f3363d3d373d3d3d363d73000000000000000000000000)
mstore(add(ptr, 0x14), shl(0x60, implementation))
mstore(add(ptr, 0x28), 0x5af43d82803e903d91602b57fd5bf3ff00000000000000000000000000000000)
mstore(add(ptr, 0x38), shl(0x60, deployer))
mstore(add(ptr, 0x4c), salt)
mstore(add(ptr, 0x6c), keccak256(ptr, 0x37))
predicted := keccak256(add(ptr, 0x37), 0x55)
mstore(ptr, 0x602d8060093d393df3363d3d373d3d3d363d7300000000000000000000000000)
mstore(add(ptr, 0x13), shl(0x60, implementation))
mstore(add(ptr, 0x27), 0x5af43d82803e903d91602b57fd5bf3ff00000000000000000000000000000000)
mstore(add(ptr, 0x37), shl(0x60, deployer))
mstore(add(ptr, 0x4b), salt)
mstore(add(ptr, 0x6b), keccak256(ptr, 0x36))
predicted := keccak256(add(ptr, 0x36), 0x55)
}
}