Rework memory grow/check helpers - pass gas counter by value #598
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Additional details and impacted files@@ Coverage Diff @@
## master #598 +/- ##
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- Coverage 97.11% 63.09% -34.02%
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Files 74 36 -38
Lines 7445 2092 -5353
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- Hits 7230 1320 -5910
- Misses 215 772 +557
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| // Check memory requirements for "copy" instructions. | ||
| inline bool check_memory(ExecutionState& state, const uint256& offset, const uint256& size) noexcept | ||
| /// Check memory requirements for "copy" instructions. | ||
| inline bool check_memory( |
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Not sure the asymmetry between grow_memory and check_memory of how gas_left is used is good. Should probably keep one option, pass-by-reference or return, for both.
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The check_memory is inline so it does not matter. The grow_memory is noinline so calling convention will force int64_t& gas to be passed via memory.
Thecheck_memory can be changed too but it has much more users and the changed version wasn't looking very good. So this should be a separate piece of work. Not needed for performance though.
This is preparation to remove
gasfromExecutionStateand passinggasby value everywhere.