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reset cache in ast_translation periodically to avoid congestion

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Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
This commit is contained in:
Nikolaj Bjorner 2017-12-15 07:21:37 -08:00
parent 6b258578f9
commit 030868d8de
5 changed files with 97 additions and 27 deletions
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16
src/ast/ast_translation.h
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@ -37,6 +37,11 @@ class ast_translation {
ptr_vector<ast> m_extra_children_stack; // for sort and func_decl, since they have nested AST in their parameters
ptr_vector<ast> m_result_stack;
obj_map<ast, ast*> m_cache;
unsigned m_loop_count;
unsigned m_hit_count;
unsigned m_miss_count;
unsigned m_insert_count;
unsigned m_num_process;
void cache(ast * s, ast * t);
void collect_decl_extra_children(decl * d);
@ -50,6 +55,11 @@ class ast_translation {
public:
ast_translation(ast_manager & from, ast_manager & to, bool copy_plugins = true) : m_from_manager(from), m_to_manager(to) {
m_loop_count = 0;
m_hit_count = 0;
m_miss_count = 0;
m_insert_count = 0;
m_num_process = 0;
if (&from != &to) {
if (copy_plugins)
m_to_manager.copy_families_plugins(m_from_manager);
@ -73,6 +83,12 @@ public:
void reset_cache();
void cleanup();
unsigned loop_count() const { return m_loop_count; }
unsigned hit_count() const { return m_hit_count; }
unsigned miss_count() const { return m_miss_count; }
unsigned insert_count() const { return m_insert_count; }
unsigned long long get_num_collision() const { return m_cache.get_num_collision(); }
};
// Translation with non-persistent cache.