Unverified Commit e0a1fd5f authored by Qian Bin's avatar Qian Bin Committed by GitHub

core/vm: optimize Memory.Set32 (#24847)

* core/vm: remove unnecessary memset for Memory.Set32

* core/vm: optimize Memory.Set32
parent f5ff022d
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......@@ -53,10 +53,9 @@ func (m *Memory) Set32(offset uint64, val *uint256.Int) {
if offset+32 > uint64(len(m.store)) {
panic("invalid memory: store empty")
}
// Zero the memory area
copy(m.store[offset:offset+32], []byte{0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0})
// Fill in relevant bits
val.WriteToSlice(m.store[offset:])
b32 := val.Bytes32()
copy(m.store[offset:], b32[:])
}
// Resize resizes the memory to size
......
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