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authorEddie Hung <eddie@fpgeh.com>2019-12-16 10:21:08 -0800
committerEddie Hung <eddie@fpgeh.com>2019-12-16 10:21:57 -0800
commit6c340112fee1bb8989cbd41923aaa627d77d5110 (patch)
treee54a3aea57dae79efb15b6d3b36e4ef56b547e90
parentc0339bbbf16cee8121417f69305c7601122ff70c (diff)
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write_xaiger: use sigmap bits more consistently
-rw-r--r--backends/aiger/xaiger.cc9
1 files changed, 4 insertions, 5 deletions
diff --git a/backends/aiger/xaiger.cc b/backends/aiger/xaiger.cc
index c080cca4d..cff3183c1 100644
--- a/backends/aiger/xaiger.cc
+++ b/backends/aiger/xaiger.cc
@@ -294,7 +294,7 @@ struct XAigerWriter
output_bits.insert(b);
if (!cell_known)
- inout_bits.insert(b);
+ inout_bits.insert(I);
}
}
}
@@ -315,7 +315,7 @@ struct XAigerWriter
SigBit O = sigmap(b);
if (O != b)
alias_map[O] = b;
- input_bits.insert(b);
+ input_bits.insert(O);
if (arrival)
arrival_times[b] = arrival;
@@ -542,9 +542,8 @@ struct XAigerWriter
undriven_bits.erase(bit);
}
- // For inout ports, or keep-ed wires, then create a new wire with an
- // $inout.out suffix, make it a PO driven by the existing inout, and
- // inherit existing inout's drivers
+ // For inout ports, or keep-ed wires, which end up being both a PI and a
+ // a PO then replace the PO with a new wire with the $inout.out suffix
for (auto bit : inout_bits) {
RTLIL::Wire *wire = bit.wire;
RTLIL::IdString wire_name = stringf("$%s$inout.out", wire->name.c_str());