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| author | David Shah <dave@ds0.me> | 2019-04-01 12:18:02 +0100 |
|---|---|---|
| committer | David Shah <dave@ds0.me> | 2019-04-01 12:18:02 +0100 |
| commit | db152b332b310725861f98966f98e785de7f304f (patch) | |
| tree | 2fd6df0ea9c85c3d74b9455c211dbc87ad2c8dd3 /common | |
| parent | ed4fc888debb2eb100d1476e92c87c65d72cf545 (diff) | |
| download | nextpnr-db152b332b310725861f98966f98e785de7f304f.tar.gz nextpnr-db152b332b310725861f98966f98e785de7f304f.tar.bz2 nextpnr-db152b332b310725861f98966f98e785de7f304f.zip | |
HeAP: Don't call Eigen if system is empty
Fixes #259
Signed-off-by: David Shah <dave@ds0.me>
Diffstat (limited to 'common')
| -rw-r--r-- | common/placer_heap.cc | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/common/placer_heap.cc b/common/placer_heap.cc index 7caf536d..f9b639f8 100644 --- a/common/placer_heap.cc +++ b/common/placer_heap.cc @@ -100,7 +100,8 @@ template <typename T> struct EquationSystem void solve(std::vector<T> &x) { using namespace Eigen; - + if (x.empty()) + return; NPNR_ASSERT(x.size() == A.size()); VectorXd vx(x.size()), vb(rhs.size()); |