From e49fdee40441cb4b1892007560d56467fd75a798 Mon Sep 17 00:00:00 2001 From: Alberto Gonzalez Date: Fri, 10 Apr 2020 07:19:05 +0000 Subject: [PATCH] Do not modify design modules while iterating over `modules()`. Co-Authored-By: Eddie Hung --- passes/techmap/techmap.cc | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/passes/techmap/techmap.cc b/passes/techmap/techmap.cc index f300c2f72..930b4c416 100644 --- a/passes/techmap/techmap.cc +++ b/passes/techmap/techmap.cc @@ -1423,11 +1423,14 @@ struct FlattenPass : public Pass { new_used_modules.insert(cell->type); } + std::set to_remove; for (auto mod : design->modules()) if (!used_modules[mod->name] && !mod->get_blackbox_attribute(worker.ignore_wb)) { log("Deleting now unused module %s.\n", log_id(mod)); - design->remove(mod); + to_remove.insert(mod); } + for (auto mod : to_remove) + design->remove(mod); } log_pop(); -- 2.30.2