Implement EIP-1884: Repricing for trie-size-dependent opcodes in aleth-interpreter

[gumb0]

https://eips.ethereum.org/EIPS/eip-1884

It includes SELFBALANCE implementation; opcode repricing is enabled automagically via EVMC instruction metrics.

[codecov-io]

Codecov Report

Merging #5725 into master will increase coverage by 0.05%.
The diff coverage is 100%.

@@            Coverage Diff             @@
##           master    #5725      +/-   ##
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+ Coverage   63.29%   63.34%   +0.05%     
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  Files         353      353              
  Lines       30321    30336      +15     
  Branches     3393     3394       +1     
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+ Hits        19191    19216      +25     
+ Misses       9895     9888       -7     
+ Partials     1235     1232       -3

[halfalicious]

https://eips.ethereum.org/EIPS/eip-1884

It includes SELFBALANCE implementation; opcode repricing is enabled automagically via EVMC instruction metrics.

PR is currently based on LegacyVM implementation because of dependency on unit tests.

Where is the automagic opcode pricing done in EVMC?

[halfalicious]

Is this ready for review? Looked at the feature changes and they look fine, still need to take a look at the tests.

[gumb0]

@halfalicious It will be ready after rebase

[gumb0]

@halfalicious instructions lib in EVMC provides costs for all opcodes on all revisions
https://github.com/ethereum/evmc/blob/master/include/evmc/instructions.h

[halfalicious]

@halfalicious instructions lib in EVMC provides costs for all opcodes on all revisions
https://github.com/ethereum/evmc/blob/master/include/evmc/instructions.h

@gumb0 Ah thank you!