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Bugfix in satgen for cells with wider in- than outputs.

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This commit is contained in:
Clifford Wolf 2014-07-21 12:03:41 +02:00
parent 54b0f2e659
commit c54d1f2ad1
1 changed files with 9 additions and 1 deletions
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10
kernel/satgen.h
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@ -166,7 +166,15 @@ struct SatGen
void undefGating(std::vector<int> &vec_y, std::vector<int> &vec_yy, std::vector<int> &vec_undef) void undefGating(std::vector<int> &vec_y, std::vector<int> &vec_yy, std::vector<int> &vec_undef)
{ {
assert(model_undef); assert(model_undef);
ez->assume(ez->expression(ezSAT::OpAnd, ez->vec_or(vec_undef, ez->vec_iff(vec_y, vec_yy)))); assert(vec_y.size() == vec_yy.size());
if (vec_y.size() > vec_undef.size()) {
std::vector<int> trunc_y(vec_y.begin(), vec_y.begin() + vec_undef.size());
std::vector<int> trunc_yy(vec_yy.begin(), vec_yy.begin() + vec_undef.size());
ez->assume(ez->expression(ezSAT::OpAnd, ez->vec_or(vec_undef, ez->vec_iff(trunc_y, trunc_yy))));
} else {
assert(vec_y.size() == vec_undef.size());
ez->assume(ez->expression(ezSAT::OpAnd, ez->vec_or(vec_undef, ez->vec_iff(vec_y, vec_yy))));
}
} }
bool importCell(RTLIL::Cell *cell, int timestep = -1) bool importCell(RTLIL::Cell *cell, int timestep = -1)