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Bugfix in SMV back-end for partially unassigned wires

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This commit is contained in:
Clifford Wolf 2015-08-05 11:36:26 +02:00
parent 4e4b156e13
commit 5dc23975eb
1 changed files with 16 additions and 4 deletions
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20
backends/smv/smv.cc
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@ -578,15 +578,13 @@ struct SmvWorker
for (int i = 0; i < wire->width; i++) for (int i = 0; i < wire->width; i++)
{ {
SigBit bit = sigmap(SigBit(wire, i));
if (!expr.empty()) if (!expr.empty())
expr = " :: " + expr; expr = " :: " + expr;
if (partial_assignment_bits.count(bit)) if (partial_assignment_bits.count(sigmap(SigBit(wire, i))))
{ {
int width = 1; int width = 1;
const auto &bit_a = partial_assignment_bits.at(bit); const auto &bit_a = partial_assignment_bits.at(sigmap(SigBit(wire, i)));
while (i+1 < wire->width) while (i+1 < wire->width)
{ {
@ -624,6 +622,20 @@ struct SmvWorker
expr = stringf("0ub%d_%s", GetSize(bits), bits.c_str()) + expr; expr = stringf("0ub%d_%s", GetSize(bits), bits.c_str()) + expr;
} }
else if (sigmap(SigBit(wire, i)) == SigBit(wire, i))
{
int length = 1;
while (i+1 < wire->width) {
if (partial_assignment_bits.count(sigmap(SigBit(wire, i+1))))
break;
if (sigmap(SigBit(wire, i+1)) != SigBit(wire, i+1))
break;
i++, length++;
}
expr = stringf("0ub%d_0", length) + expr;
}
else else
{ {
string bits; string bits;