diff options
| -rw-r--r-- | techlibs/xilinx/synth_xilinx.cc | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/techlibs/xilinx/synth_xilinx.cc b/techlibs/xilinx/synth_xilinx.cc index 3c5599e4e..9b4b1f71a 100644 --- a/techlibs/xilinx/synth_xilinx.cc +++ b/techlibs/xilinx/synth_xilinx.cc @@ -316,9 +316,10 @@ struct SynthXilinxPass : public ScriptPass run("proc"); if (flatten || help_mode) run("flatten", "(with '-flatten')"); - active_design->scratchpad_unset("tribuf.added_something"); + if (active_design) + active_design->scratchpad_unset("tribuf.added_something"); run("tribuf -logic"); - if (noiopad && active_design->scratchpad_get_bool("tribuf.added_something")) + if (noiopad && active_design && active_design->scratchpad_get_bool("tribuf.added_something")) log_error("Tristate buffers are unsupported without the '-iopad' option.\n"); run("deminout"); run("opt_expr"); |