Commits on Jan 9, 2024

1. state: Only mark touch of empty accounts …

   If an account is being touched but is not empty it doesn't make sense
   to mark it as touched. Touching only affects deleting empty accounts
   but an account cannot become empty later during transaction execution
   (except for selfdestruct, but this is tracked separately).
   
   When executing all state tests from https://github.com/ethereum/tests,
   this optimization reduces number of registered touch events by 99.2%
   (from 1673250 to 13806) and number of reverted touch events by 99.7%
   (from 1345463 to 401).
   
   Moreover, considering current Mainnet status and
   [EIP-7523: Empty accounts deprecation](https://eips.ethereum.org/EIPS/eip-7523)
   empty accounts cannot be encountered after the Paris revision.
   Therefore, this change total disables unnecessary touch handling
   in current PoS networks.

   

   chfast committed Jan 9, 2024
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