From 95dbacefbf9045d191db421af8c6e77bf315d329 Mon Sep 17 00:00:00 2001 From: Clifford Wolf Date: Thu, 17 Oct 2013 21:00:37 +0200 Subject: [PATCH] Fixed bug in synthesis of memories that are never written --- passes/memory/memory_map.cc | 9 +++++++-- 1 file changed, 7 insertions(+), 2 deletions(-) diff --git a/passes/memory/memory_map.cc b/passes/memory/memory_map.cc index b41d3aa2f..1651751a2 100644 --- a/passes/memory/memory_map.cc +++ b/passes/memory/memory_map.cc @@ -121,8 +121,13 @@ static void handle_cell(RTLIL::Module *module, RTLIL::Cell *cell) c->name = genid(cell->name, "", i); c->type = "$dff"; c->parameters["\\WIDTH"] = cell->parameters["\\WIDTH"]; - c->parameters["\\CLK_POLARITY"] = RTLIL::Const(clocks_pol.bits[0]); - c->connections["\\CLK"] = clocks.extract(0, 1); + if (clocks_pol.bits.size() > 0) { + c->parameters["\\CLK_POLARITY"] = RTLIL::Const(clocks_pol.bits[0]); + c->connections["\\CLK"] = clocks.extract(0, 1); + } else { + c->parameters["\\CLK_POLARITY"] = RTLIL::Const(RTLIL::State::S1); + c->connections["\\CLK"] = RTLIL::SigSpec(RTLIL::State::S0); + } module->cells[c->name] = c; RTLIL::Wire *w_in = new RTLIL::Wire; -- 2.30.2