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Fix crash in flowmap

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In 2fcc1ee72e, the following is apparantly added in order to mark any
number of undefined LUT inputs:

lut_a.append(RTLIL::Const(State::Sx, minlut - input_nodes.size()));

However this can only be done if the number of input nodes is less
than minlut.

This fixes #3317
This commit is contained in:
Dag Lem 2022-09-20 14:30:12 +02:00
parent a217450524
commit c4c68e8d86
1 changed files with 2 additions and 1 deletions
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3
passes/techmap/flowmap.cc
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@ -1406,7 +1406,8 @@ struct FlowmapWorker
RTLIL::SigSpec lut_a, lut_y = node; RTLIL::SigSpec lut_a, lut_y = node;
for (auto input_node : input_nodes) for (auto input_node : input_nodes)
lut_a.append(input_node); lut_a.append(input_node);
lut_a.append(RTLIL::Const(State::Sx, minlut - input_nodes.size())); if ((int)input_nodes.size() < minlut)
lut_a.append(RTLIL::Const(State::Sx, minlut - input_nodes.size()));
RTLIL::Cell *lut = module->addLut(NEW_ID, lut_a, lut_y, lut_table); RTLIL::Cell *lut = module->addLut(NEW_ID, lut_a, lut_y, lut_table);
mapped_nodes.insert(node); mapped_nodes.insert(node);