Add support for memory writes in processes.

3 files changed, 30 insertions, 0 deletions

diff --git a/passes/cmds/bugpoint.cc b/passes/cmds/bugpoint.cc
index da81e7f09..40207b1fc 100644
--- a/passes/cmds/bugpoint.cc
+++ b/passes/cmds/bugpoint.cc
@@ -339,6 +339,23 @@ struct BugpointPass : public Pass {
 								return design_copy;
 							}
 						}
+						int i = 0;
+						for (auto it = sy->mem_write_actions.begin(); it != sy->mem_write_actions.end(); ++it, ++i)
+						{
+							if (index++ == seed)
+							{
+								log_header(design, "Trying to remove sync %s memwr %s %s %s %s in %s.%s.\n", log_signal(sy->signal), log_id(it->memid), log_signal(it->address), log_signal(it->data), log_signal(it->enable), log_id(mod), log_id(pr.first));
+								sy->mem_write_actions.erase(it);
+								// Remove the bit for removed action from other actions' priority masks.
+								for (auto it2 = sy->mem_write_actions.begin(); it2 != sy->mem_write_actions.end(); ++it2) {
+									auto &mask = it2->priority_mask;
+									if (GetSize(mask) > i) {
+										mask.bits.erase(mask.bits.begin() + i);
+									}
+								}
+								return design_copy;
+							}
+						}
 					}
 				}
 			}
diff --git a/passes/cmds/check.cc b/passes/cmds/check.cc
index 36febb98a..b502b0788 100644
--- a/passes/cmds/check.cc
+++ b/passes/cmds/check.cc
@@ -141,6 +141,14 @@ struct CheckPass : public Pass {
 						for (auto bit : sigmap(action.second))
 							if (bit.wire) used_wires.insert(bit);
 					}
+					for (auto memwr : sync->mem_write_actions) {
+						for (auto bit : sigmap(memwr.address))
+							if (bit.wire) used_wires.insert(bit);
+						for (auto bit : sigmap(memwr.data))
+							if (bit.wire) used_wires.insert(bit);
+						for (auto bit : sigmap(memwr.enable))
+							if (bit.wire) used_wires.insert(bit);
+					}
 				}
 			}
 
diff --git a/passes/cmds/show.cc b/passes/cmds/show.cc
index 0c96f8c5d..a389c3179 100644
--- a/passes/cmds/show.cc
+++ b/passes/cmds/show.cc
@@ -339,6 +339,11 @@ struct ShowWorker
 	{
 		input_signals.insert(obj->signal);
 		collect_proc_signals(obj->actions, input_signals, output_signals);
+		for (auto it : obj->mem_write_actions) {
+			input_signals.insert(it.address);
+			input_signals.insert(it.data);
+			input_signals.insert(it.enable);
+		}
 	}
 
 	void collect_proc_signals(RTLIL::Process *obj, std::set<RTLIL::SigSpec> &input_signals, std::set<RTLIL::SigSpec> &output_signals)