solidity/test/libyul/yulOptimizerTests/expressionSimplifier/combine_shift_and_and_2.yul
2020-09-14 17:35:04 +02:00

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{
// This is not fully simplified on purpose because we
// need another split step in between. The full simplification
// is tested in the fullSuite.
let x := calldataload(0)
let a := and(0xff, shr(248, shl(248, shr(248, and(x, 0xf)))))
let b := shl(12, shr(4, and(x, 0xf0f0)))
let c := shl(12, shr(4, and(0xf0f0, x)))
let d := shl(12, shr(255, and(0xf0f0, x)))
let e := shl(255, shr(4, and(0xf0f0, x)))
let f := shl(12, shr(256, and(0xf0f0, x)))
let g := shl(256, shr(4, and(0xf0f0, x)))
sstore(10, a)
sstore(11, b)
sstore(12, c)
sstore(13, d)
sstore(14, e)
sstore(15, f)
sstore(16, g)
}
// ====
// EVMVersion: >byzantium
// ----
// step: expressionSimplifier
//
// {
// let x := calldataload(0)
// let _2 := 0xf
// let _5 := and(shr(248, x), 0)
// let _10 := 0xff
// let a := and(_5, 255)
// let _14 := and(shr(4, x), 3855)
// let _15 := 12
// let b := shl(_15, _14)
// let _19 := and(shr(4, x), 3855)
// let c := shl(_15, _19)
// let d := shl(_15, and(shr(255, x), 0))
// let e := shl(_10, _19)
// let f := 0
// let g := 0
// sstore(10, a)
// sstore(11, b)
// sstore(_15, c)
// sstore(13, d)
// sstore(14, e)
// sstore(_2, f)
// sstore(16, g)
// }