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extra memory copy example. Memory Store remover
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| { | |
| let x := 64 | |
| // can be removed | |
| mstore(x, 128) | |
| if iszero(lt(calldatasize(), 4)) | |
| { | |
| let _1 := 0 | |
| if eq(0x8868a931, shr(224, calldataload(_1))) | |
| { | |
| if callvalue() { revert(_1, _1) } | |
| if slt(add(calldatasize(), not(3)), 32) { revert(_1, _1) } | |
| // can be removed | |
| mstore(x, 160) | |
| let _2 := calldataload(4) | |
| let y := 128 | |
| // can be removed. The extra copy | |
| mstore(y, _2) | |
| let z := 160 | |
| mstore(z, _2) | |
| log1(160, 32, 0x212c52355da9347c37e2f79c330f6a3f39d08b38b62c96451f574d1878a87676) | |
| // can be removed | |
| mstore(x, 160) | |
| return(160, _1) | |
| } | |
| } | |
| revert(0, 0) | |
| } | |
| // ---- | |
| // step: memoryStoreRemover | |
| // | |
| // { | |
| // let x := 64 | |
| // pop(128) | |
| // if iszero(lt(calldatasize(), 4)) | |
| // { | |
| // let _1 := 0 | |
| // if eq(0x8868a931, shr(224, calldataload(_1))) | |
| // { | |
| // if callvalue() { revert(_1, _1) } | |
| // if slt(add(calldatasize(), not(3)), 32) { revert(_1, _1) } | |
| // pop(160) | |
| // let _2 := calldataload(4) | |
| // let y := 128 | |
| // pop(_2) | |
| // let z := 160 | |
| // mstore(z, _2) | |
| // log1(160, 32, 0x212c52355da9347c37e2f79c330f6a3f39d08b38b62c96451f574d1878a87676) | |
| // pop(160) | |
| // return(160, _1) | |
| // } | |
| // } | |
| // revert(0, 0) | |
| // } |
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