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perf

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Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
This commit is contained in:
Nikolaj Bjorner 2026-06-17 10:06:43 -06:00
parent f261c7732b
commit e011aead11
1 changed files with 4 additions and 2 deletions
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6
src/ast/rewriter/seq_derive.cpp
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@ -57,6 +57,7 @@ namespace seq {
// Reset only operation caches (union/inter/concat/complement) // Reset only operation caches (union/inter/concat/complement)
// while preserving derivative caches (m_cache, m_top_cache) // while preserving derivative caches (m_cache, m_top_cache)
// The op cache does index on m_ele so it has to be reset if m_ele changes.
void derive::reset_op_caches() { void derive::reset_op_caches() {
m_union_cache.reset(); m_union_cache.reset();
m_inter_cache.reset(); m_inter_cache.reset();
@ -81,8 +82,9 @@ namespace seq {
result = cached; result = cached;
return result; return result;
} }
// Cache and pin the final result // Pin ele and r
m_trail.push_back(ele); m_trail.push_back(ele);
m_trail.push_back(r);
// Always compute the SYMBOLIC derivative wrt the canonical // Always compute the SYMBOLIC derivative wrt the canonical
// variable v (so the cached result is reusable for any // variable v (so the cached result is reusable for any
@ -100,7 +102,7 @@ namespace seq {
result = derive_rec(r); result = derive_rec(r);
m_top_cache.insert(ele, r, result); m_top_cache.insert(ele, r, result);
m_trail.push_back(r); // pin the final result
m_trail.push_back(result); m_trail.push_back(result);
return result; return result;
} }