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fix #3649

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Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
This commit is contained in:
Nikolaj Bjorner 2020-04-01 10:56:27 -07:00
parent 65b2037ba2
commit c6b4641050
8 changed files with 36 additions and 22 deletions
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10
src/ast/rewriter/rewriter.cpp
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@ -42,6 +42,16 @@ void rewriter_core::del_cache_stack() {
}
}
bool rewriter_core::rewrites_from(expr* t, proof* p) {
return !p || (to_app(m().get_fact(p))->get_arg(0) == t);
}
bool rewriter_core::rewrites_to(expr* t, proof* p) {
return !p || (to_app(m().get_fact(p))->get_arg(1) == t);
}
void rewriter_core::cache_shifted_result(expr * k, unsigned offset, expr * v) {
#if 0
// trace for tracking cache usage