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synth_xilinx: error out if tristate without '-iopad'

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Eddie Hung 2019-12-12 14:33:33 -08:00
parent abf99d4dae
commit 3bd623bb05
1 changed files with 4 additions and 0 deletions
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4
techlibs/xilinx/synth_xilinx.cc
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@ -306,6 +306,10 @@ struct SynthXilinxPass : public ScriptPass
run("proc");
if (flatten || help_mode)
run("flatten", "(with '-flatten')");
active_design->scratchpad_unset("tribuf.added_something");
run("tribuf -logic");
if (!do_iopad && active_design->scratchpad_get_bool("tribuf.added_something"))
log_error("Tristate buffers are unsupported without the '-iopad' option.\n");
run("tribuf -logic");
run("deminout");
run("opt_expr");