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Merge pull request #9736 from ethereum/yul_smt

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Reasoning based optimizer using integers only
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chriseth
2020-09-15 18:45:55 +02:00
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parent e92b44026f e527ac88f7
commit adccc0608d
27 changed files with 875 additions and 8 deletions
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@@ -1110,6 +1110,7 @@ Abbreviation Full name
``L`` ``LoadResolver``
``M`` ``LoopInvariantCodeMotion``
``r`` ``RedundantAssignEliminator``
``R`` ``ReasoningBasedSimplifier`` - highly experimental
``m`` ``Rematerialiser``
``V`` ``SSAReverser``
``a`` ``SSATransform``
@@ -1121,6 +1122,10 @@ Abbreviation Full name
Some steps depend on properties ensured by ``BlockFlattener``, ``FunctionGrouper``, ``ForLoopInitRewriter``.
For this reason the Yul optimizer always applies them before applying any steps supplied by the user.
The ReasoningBasedSimplifier is an optimizer step that is currently not enabled
in the default set of steps. It uses an SMT solver to simplify arithmetic expressions
and boolean conditions. It has not received thorough testing or validation yet and can produce
non-reproducible results, so please use with care!
.. _erc20yul: