From: whitequark <whitequark@whitequark.org>
Date: Sun, 1 Nov 2020 12:49:20 +0000 (+0000)
Subject: cxxrtl: don't assert on wires with multiple drivers.
X-Git-Tag: working-ls180~213^2
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=cdf4ce98719b4a05a959651e209eb54d6cf17dab;p=yosys.git

cxxrtl: don't assert on wires with multiple drivers.

Fixes #2374.
---

diff --git a/backends/cxxrtl/cxxrtl_backend.cc b/backends/cxxrtl/cxxrtl_backend.cc
index dfea04409..da46711c1 100644
--- a/backends/cxxrtl/cxxrtl_backend.cc
+++ b/backends/cxxrtl/cxxrtl_backend.cc
@@ -2182,6 +2182,8 @@ struct CxxrtlWorker {
 				if (wire->name.begins_with("$") && !elide_internal) continue;
 				if (wire->name.begins_with("\\") && !elide_public) continue;
 				if (edge_wires[wire]) continue;
+				if (flow.wire_comb_defs[wire].size() > 1)
+					log_cmd_error("Wire %s.%s has multiple drivers.\n", log_id(module), log_id(wire));
 				log_assert(flow.wire_comb_defs[wire].size() == 1);
 				elided_wires[wire] = **flow.wire_comb_defs[wire].begin();
 			}