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| author | Tim King <taking@cs.nyu.edu> | 2013-11-25 18:36:06 -0500 |
|---|---|---|
| committer | Tim King <taking@cs.nyu.edu> | 2013-11-25 18:36:06 -0500 |
| commit | 22df6e9e8618614e8c33700c55705266912500ae (patch) | |
| tree | 20d78676c1e819517f371e8bc5e6363008fc9154 /src/expr/options | |
| parent | 91424455840a7365a328cbcc3d02ec453fe9d0ea (diff) | |
Substantial Changes:
-ITE Simplification
-- Moved the utilities in src/theory/ite_simplifier.{h,cpp} to ite_utilities.
-- Separated simpWithCare from simpITE.
-- Disabled ite simplification on repeat simplification by default. Currently, ite simplification cannot help unless we internally make new constant leaf ites equal to constants.
-- simplifyWithCare() is now only run on QF_AUFBV by default. Speeds up nec benchmarks dramatically.
-- Added a new compress ites pass that is only run on QF_LIA by default. This targets the perverse structure of ites generated during ite simplification on nec benchmarks.
-- After ite simplification, if the ite simplifier was used many times and the NodeManager's node pool is large enough, this garbage collects: zombies from the NodeManager repeatedly, the ite simplification caches, and the theory rewrite caches.
- TheoryEngine
-- Added TheoryEngine::donePPSimpITE() which orchestrates a number of ite simplifications above.
-- Switched UnconstrainedSimplifier to a pointer.
- RemoveITEs
-- Added a heuristic for checking whether or not a node contains term ites and if not, not bothering to invoke the rest of RemoveITE::run(). This safely changes the type of the cache used on misses of run. This cache can be cleared in the future. Currently disabled pending additional testing.
- TypeChecker
-- added a neverIsConst() rule to the typechecker. Operators that cannot be used in constructing constant expressions by computeIsConst() can now avoid caching on Node::isConst() calls.
- Theory Bool Rewriter
-- Added additional simplifications for boolean ites.
Minor Changes:
- TheoryModel
-- Removed vestigial copy of the ITESimplifier.
- AttributeManager
-- Fixed a garbage collection bug when deleting the node table caused the NodeManager to reclaimZombies() which caused memory corruption by deleting from the attributeManager.
- TypeChecker
-- added a neverIsConst() rule to the typechecker. Operators that cannot be used in constructing constant expressions by computeIsConst() can now avoid caching on Node::isConst() calls.
-NodeManager
-- Added additional functions for reclaiming zombies.
-- Exposed the size of the node pool for heuristics that worry about memory consumption.
- NaryBuilder
-- Added convenience classes for constructing associative and commutative n-ary operators.
-- Added a pass that turns associative and commutative n-ary operators into binary operators. (Mostly for printing expressions for strict parsers.)
Diffstat (limited to 'src/expr/options')
| -rw-r--r-- | src/expr/options | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/src/expr/options b/src/expr/options index 223189d1b..cf893a7a5 100644 --- a/src/expr/options +++ b/src/expr/options @@ -21,5 +21,8 @@ option earlyTypeChecking --eager-type-checking/--lazy-type-checking bool :defaul option typeChecking /--no-type-checking bool :default DO_SEMANTIC_CHECKS_BY_DEFAULT :link /--lazy-type-checking never type check expressions +option biasedITERemoval --biased-ites bool :default false + try the new remove ite pass that is biased against term ites appearing + endmodule |