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-rw-r--r--passes/opt/opt_clean.cc22
1 files changed, 11 insertions, 11 deletions
diff --git a/passes/opt/opt_clean.cc b/passes/opt/opt_clean.cc
index f5bb40050..cac265a52 100644
--- a/passes/opt/opt_clean.cc
+++ b/passes/opt/opt_clean.cc
@@ -51,18 +51,18 @@ struct keep_cache_t
if (cache.count(module))
return cache.at(module);
- bool found_keep = false;
- if (module->get_bool_attribute(ID::keep))
- found_keep = true;
- else
- for (auto cell : module->cells())
- if (query(cell, true /* ignore_specify */)) {
- found_keep = true;
- break;
- }
- cache[module] = found_keep;
+ cache[module] = true;
+ if (!module->get_bool_attribute(ID::keep)) {
+ bool found_keep = false;
+ for (auto cell : module->cells())
+ if (query(cell, true /* ignore_specify */)) {
+ found_keep = true;
+ break;
+ }
+ cache[module] = found_keep;
+ }
- return found_keep;
+ return cache[module];
}
bool query(Cell *cell, bool ignore_specify = false)