From aa081f83c791b1d666214776aaf744a80ce6a690 Mon Sep 17 00:00:00 2001 From: Eddie Hung Date: Thu, 2 May 2019 17:40:39 -0700 Subject: [PATCH] dffinit -noreinit to silently continue when init value is 1'bx --- passes/techmap/dffinit.cc | 16 ++++++++++++---- 1 file changed, 12 insertions(+), 4 deletions(-) diff --git a/passes/techmap/dffinit.cc b/passes/techmap/dffinit.cc index 48390488e..37479da65 100644 --- a/passes/techmap/dffinit.cc +++ b/passes/techmap/dffinit.cc @@ -135,10 +135,18 @@ struct DffinitPass : public Pass { continue; while (GetSize(value.bits) <= i) value.bits.push_back(State::S0); - if (noreinit && value.bits[i] != State::Sx && value.bits[i] != init_bits.at(sig[i])) - log_error("Trying to assign a different init value for %s.%s.%s which technically " - "have a conflicted init value.\n", - log_id(module), log_id(cell), log_id(it.second)); + if (noreinit && value.bits[i] != State::Sx && value.bits[i] != init_bits.at(sig[i])) { + if (init_bits.at(sig[i]) != State::Sx) { + log_error("Trying to assign a different init value for %s.%s.%s which technically " + "have a conflicted init value.\n", + log_id(module), log_id(cell), log_id(it.second)); + } + else { + // Trying to overwrite an existing INIT value with 1'bx, + // silently ignore? + continue; + } + } value.bits[i] = init_bits.at(sig[i]); cleanup_bits.insert(sig[i]); } -- 2.30.2