From 3bd623bb05c0be74b024f5635e754e794bd6316c Mon Sep 17 00:00:00 2001 From: Eddie Hung Date: Thu, 12 Dec 2019 14:33:33 -0800 Subject: synth_xilinx: error out if tristate without '-iopad' --- techlibs/xilinx/synth_xilinx.cc | 4 ++++ 1 file changed, 4 insertions(+) (limited to 'techlibs/xilinx') diff --git a/techlibs/xilinx/synth_xilinx.cc b/techlibs/xilinx/synth_xilinx.cc index 2c5686a35..6dd769055 100644 --- a/techlibs/xilinx/synth_xilinx.cc +++ b/techlibs/xilinx/synth_xilinx.cc @@ -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"); -- cgit v1.2.3 From dd7d2d8db615f7d54d9bbee257fad9fb11bdc9f8 Mon Sep 17 00:00:00 2001 From: Eddie Hung Date: Fri, 13 Dec 2019 08:51:05 -0800 Subject: Duplicate tribuf call, credit to @mwkmwkmwk --- techlibs/xilinx/synth_xilinx.cc | 1 - 1 file changed, 1 deletion(-) (limited to 'techlibs/xilinx') diff --git a/techlibs/xilinx/synth_xilinx.cc b/techlibs/xilinx/synth_xilinx.cc index 6dd769055..640659ad6 100644 --- a/techlibs/xilinx/synth_xilinx.cc +++ b/techlibs/xilinx/synth_xilinx.cc @@ -310,7 +310,6 @@ struct SynthXilinxPass : public ScriptPass 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"); run("opt_clean"); -- cgit v1.2.3