aboutsummaryrefslogtreecommitdiffstats
path: root/techlibs
diff options
context:
space:
mode:
Diffstat (limited to 'techlibs')
-rw-r--r--techlibs/greenpak4/synth_greenpak4.cc2
-rw-r--r--techlibs/xilinx/synth_xilinx.cc2
2 files changed, 2 insertions, 2 deletions
diff --git a/techlibs/greenpak4/synth_greenpak4.cc b/techlibs/greenpak4/synth_greenpak4.cc
index 17b5d4782..d9af340d9 100644
--- a/techlibs/greenpak4/synth_greenpak4.cc
+++ b/techlibs/greenpak4/synth_greenpak4.cc
@@ -162,7 +162,7 @@ struct SynthGreenPAK4Pass : public ScriptPass
run("opt -undriven -fine");
run("techmap -map +/techmap.v -map +/greenpak4/cells_latch.v");
run("dfflibmap -prepare -liberty +/greenpak4/gp_dff.lib");
- run("opt -fast");
+ run("opt -fast -noclkinv -noff");
if (retime || help_mode)
run("abc -dff -D 1", "(only if -retime)");
}
diff --git a/techlibs/xilinx/synth_xilinx.cc b/techlibs/xilinx/synth_xilinx.cc
index dc293f237..970196de9 100644
--- a/techlibs/xilinx/synth_xilinx.cc
+++ b/techlibs/xilinx/synth_xilinx.cc
@@ -585,7 +585,7 @@ struct SynthXilinxPass : public ScriptPass
}
if (check_label("map_luts")) {
- run("opt_expr -mux_undef");
+ run("opt_expr -mux_undef -noclkinv");
if (flatten_before_abc)
run("flatten");
if (help_mode)