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fix(kernel/expr): expr_cache initialization

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Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
This commit is contained in:
Leonardo de Moura 2014-06-06 18:00:26 -07:00
parent 8d4312d9d8
commit 4a43016735
1 changed files with 4 additions and 2 deletions
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6
src/kernel/expr.cpp
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@ -268,11 +268,13 @@ expr_macro::~expr_macro() {
#ifdef LEAN_CACHE_EXPRS #ifdef LEAN_CACHE_EXPRS
typedef lru_cache<expr, expr_hash, is_bi_equal_proc> expr_cache; typedef lru_cache<expr, expr_hash, is_bi_equal_proc> expr_cache;
static expr_cache LEAN_THREAD_LOCAL g_expr_cache(LEAN_INITIAL_EXPR_CACHE_CAPACITY); static std::unique_ptr<expr_cache> LEAN_THREAD_LOCAL g_expr_cache;
static bool LEAN_THREAD_LOCAL g_expr_cache_enabled = true; static bool LEAN_THREAD_LOCAL g_expr_cache_enabled = true;
inline expr cache(expr const & e) { inline expr cache(expr const & e) {
if (g_expr_cache_enabled) { if (g_expr_cache_enabled) {
if (auto r = g_expr_cache.insert(e)) if (!g_expr_cache)
g_expr_cache.reset(new expr_cache(LEAN_INITIAL_EXPR_CACHE_CAPACITY));
if (auto r = g_expr_cache->insert(e))
return *r; return *r;
} }
return e; return e;