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-rw-r--r--techlibs/ecp5/synth_ecp5.cc2
1 files changed, 1 insertions, 1 deletions
diff --git a/techlibs/ecp5/synth_ecp5.cc b/techlibs/ecp5/synth_ecp5.cc
index c1545cbb5..3e475baab 100644
--- a/techlibs/ecp5/synth_ecp5.cc
+++ b/techlibs/ecp5/synth_ecp5.cc
@@ -316,7 +316,7 @@ struct SynthEcp5Pass : public ScriptPass
if (!nodffe)
run("dff2dffe -direct-match $_DFF_* -direct-match $__DFFS_*");
if ((abc9 && dff) || help_mode)
- run("zinit -all", "(-abc9 and -dff only)");
+ run("zinit -all t:$_DFF_?_ t:$_DFFE_??_ t:$__DFFS*", "(only if -abc9 and -dff");
run(stringf("techmap -D NO_LUT %s -map +/ecp5/cells_map.v", help_mode ? "[-D ASYNC_PRLD]" : (asyncprld ? "-D ASYNC_PRLD" : "")));
run("opt_expr -undriven -mux_undef");
run("simplemap");