diff options
| -rw-r--r-- | passes/pmgen/ice40_dsp.pmg | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/passes/pmgen/ice40_dsp.pmg b/passes/pmgen/ice40_dsp.pmg index 6b6d2b56f..9514e65d9 100644 --- a/passes/pmgen/ice40_dsp.pmg +++ b/passes/pmgen/ice40_dsp.pmg @@ -57,6 +57,9 @@ code sigA sigB sigH sigH.append(O[i]); } log_assert(nusers(O.extract_end(i)) <= 1); + + if (sigH.empty()) + reject; endcode code argQ ffA ffAholdmux ffArstmux ffAholdpol ffArstpol sigA clock clock_pol @@ -328,6 +331,8 @@ arg argD argQ clock clock_pol code dff = nullptr; + if (argQ.empty()) + reject; for (auto c : argQ.chunks()) { if (!c.wire) reject; |