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| author | Pepijn de Vos <pepijndevos@gmail.com> | 2021-11-07 18:00:18 +0100 |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2021-11-07 18:00:18 +0100 |
| commit | 4bf8deacbb961649901d45b21ab7fa8522d5885b (patch) | |
| tree | 59a8b410b271a8633061d6df0d367445002402cb /techlibs/gowin/synth_gowin.cc | |
| parent | 9a413803eb83f96d74dc48aee8a2319e1b926692 (diff) | |
| download | yosys-4bf8deacbb961649901d45b21ab7fa8522d5885b.tar.gz yosys-4bf8deacbb961649901d45b21ab7fa8522d5885b.tar.bz2 yosys-4bf8deacbb961649901d45b21ab7fa8522d5885b.zip | |
synth_gowin: move splitnets to after iopadmap (#2435)
Diffstat (limited to 'techlibs/gowin/synth_gowin.cc')
| -rw-r--r-- | techlibs/gowin/synth_gowin.cc | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/techlibs/gowin/synth_gowin.cc b/techlibs/gowin/synth_gowin.cc index cfc856deb..1f34a1d1d 100644 --- a/techlibs/gowin/synth_gowin.cc +++ b/techlibs/gowin/synth_gowin.cc @@ -238,7 +238,6 @@ struct SynthGowinPass : public ScriptPass run("opt -fast"); if (retime || help_mode) run("abc -dff -D 1", "(only if -retime)"); - run("splitnets"); if (!noiopads || help_mode) run("iopadmap -bits -inpad IBUF O:I -outpad OBUF I:O " "-toutpad $__GW_TBUF OE:I:O -tinoutpad $__GW_IOBUF OE:O:I:IO", "(unless -noiopads)"); @@ -278,6 +277,8 @@ struct SynthGowinPass : public ScriptPass run("opt_lut_ins -tech gowin"); run("setundef -undriven -params -zero"); run("hilomap -singleton -hicell VCC V -locell GND G"); + if (!vout_file.empty() || help_mode) // vendor output requires 1-bit wires + run("splitnets -ports", "(only if -vout used)"); run("clean"); run("autoname"); } @@ -293,7 +294,7 @@ struct SynthGowinPass : public ScriptPass if (check_label("vout")) { if (!vout_file.empty() || help_mode) - run(stringf("write_verilog -decimal -attr2comment -defparam -renameprefix gen %s", + run(stringf("write_verilog -simple-lhs -decimal -attr2comment -defparam -renameprefix gen %s", help_mode ? "<file-name>" : vout_file.c_str())); if (!json_file.empty() || help_mode) run(stringf("write_json %s", |