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adding simplifiers layer

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simplifiers layer is a common substrate for global non-incremental and incremental processing.
The first two layers are new, but others are to be ported form tactics.

- bv::slice - rewrites equations to cut-dice-slice bit-vector extractions until they align. It creates opportunities for rewriting portions of bit-vectors to common sub-expressions, including values.
- euf::completion - generalizes the KB simplifcation from asserted formulas to use the E-graph to establish a global and order-independent canonization.

The interface dependent_expr_simplifier is amenable to forming tactics. Plugins for asserted-formulas is also possible but not yet realized.
This commit is contained in:
Nikolaj Bjorner 2022-11-02 08:51:30 -07:00
parent 1646a41b2f
commit e57674490f
16 changed files with 1024 additions and 2 deletions
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src/CMakeLists.txt
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@ -49,9 +49,10 @@ add_subdirectory(ast/rewriter)
add_subdirectory(ast/normal_forms)
add_subdirectory(ast/macros)
add_subdirectory(model)
add_subdirectory(ast/euf)
add_subdirectory(ast/simplifiers)
add_subdirectory(tactic)
add_subdirectory(ast/substitution)
add_subdirectory(ast/euf)
add_subdirectory(smt/params)
add_subdirectory(parsers/util)
add_subdirectory(math/grobner)