Track EVM stack "end" instead of "top"

[chfast]

No description provided.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 98.47%. Comparing base (42a2ac7) to head (47ae17c).

Additional details and impacted files

@@            Coverage Diff             @@
##           master     #895      +/-   ##
==========================================
- Coverage   98.50%   98.47%   -0.03%     
==========================================
  Files         130      130              
  Lines       15627    15628       +1     
==========================================
- Hits        15393    15390       -3     
- Misses        234      238       +4     

Flag	Coverage Δ
ethereum-tests	27.95% <66.66%> (+<0.01%)	⬆️
ethereum-tests-silkpre	19.69% <66.66%> (+<0.01%)	⬆️
execution-spec-tests	19.05% <63.63%> (-0.01%)	⬇️
unittests	94.33% <100.00%> (-0.03%)	⬇️

Flags with carried forward coverage won't be shown. Click here to find out more.

Files	Coverage Δ
lib/evmone/advanced_analysis.hpp	96.29% <100.00%> (ø)
lib/evmone/baseline.cpp	100.00% <100.00%> (ø)
lib/evmone/execution_state.hpp	96.72% <100.00%> (-0.06%)	⬇️
lib/evmone/instructions.hpp	99.36% <100.00%> (-0.64%)	⬇️

[chfast]

Seems no performance regressions:

Zen2, clang-18:

baseline/execute/main/blake2b_huff/empty_mean                                +0.0013         +0.0013            10            10            10            10
baseline/execute/main/blake2b_huff/8415nulls_mean                            -0.0105         -0.0105           603           597           603           597
baseline/execute/main/blake2b_shifts/8415nulls_mean                          -0.0268         -0.0268          5650          5498          5650          5498
baseline/execute/main/sha1_divs/empty_mean                                   -0.0080         -0.0080            42            42            42            42
baseline/execute/main/sha1_divs/5311_mean                                    +0.0010         +0.0010          3335          3338          3335          3338
baseline/execute/main/sha1_shifts/empty_mean                                 -0.0070         -0.0070            22            21            22            21
baseline/execute/main/sha1_shifts/5311_mean                                  -0.0081         -0.0081          1776          1761          1776          1761
baseline/execute/main/snailtracer/benchmark_mean                             -0.0088         -0.0088         29799         29538         29799         29538
baseline/execute/main/structarray_alloc/nfts_rank_mean                       -0.0136         -0.0136           396           391           396           391
baseline/execute/main/swap_math/spent_mean                                   -0.0081         -0.0081             2             2             2             2
baseline/execute/main/swap_math/received_mean                                -0.0133         -0.0133             2             2             2             2
baseline/execute/main/swap_math/insufficient_liquidity_mean                  -0.0034         -0.0034             1             1             1             1
baseline/execute/main/weierstrudel/1_mean                                    -0.0019         -0.0019           139           139           139           139
baseline/execute/main/weierstrudel/15_mean                                   -0.0119         -0.0119          1387          1370          1387          1370
OVERALL_GEOMEAN                                                              -0.0085         -0.0085             0             0             0             0