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-rw-r--r--passes/techmap/abc9_ops.cc6
1 files changed, 4 insertions, 2 deletions
diff --git a/passes/techmap/abc9_ops.cc b/passes/techmap/abc9_ops.cc
index dad39828a..fc2f52157 100644
--- a/passes/techmap/abc9_ops.cc
+++ b/passes/techmap/abc9_ops.cc
@@ -669,8 +669,10 @@ void prep_box(RTLIL::Design *design, bool dff_mode)
ss << std::endl;
auto &t = timing.setup_module(module).comb;
- if (t.empty())
- log_error("(* abc9_box *) module '%s' has no timing information.\n", log_id(module));
+ if (t.empty()) {
+ log_warning("(* abc9_box *) module '%s' has no timing (and thus no connectivity) information.\n", log_id(module));
+ continue;
+ }
for (const auto &o : outputs) {
first = true;