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| author | Eddie Hung <eddie@fpgeh.com> | 2020-01-02 08:46:24 -0800 |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2020-01-02 08:46:24 -0800 |
| commit | d6242be8021d126d7d0e6a96fc0140985fd4506f (patch) | |
| tree | a976bb5ae65507f3ee30058a882a85a6f3075202 /techlibs/xilinx | |
| parent | a8f66888888e42b2cca362d208cdc780417ef33e (diff) | |
| parent | 79448f9be035c88589b4e9c0de6b2bdc5acbd4df (diff) | |
| download | yosys-d6242be8021d126d7d0e6a96fc0140985fd4506f.tar.gz yosys-d6242be8021d126d7d0e6a96fc0140985fd4506f.tar.bz2 yosys-d6242be8021d126d7d0e6a96fc0140985fd4506f.zip | |
Merge pull request #1601 from YosysHQ/eddie/synth_retime
"abc -dff" to no longer retime by default
Diffstat (limited to 'techlibs/xilinx')
| -rw-r--r-- | techlibs/xilinx/synth_xilinx.cc | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/techlibs/xilinx/synth_xilinx.cc b/techlibs/xilinx/synth_xilinx.cc index d4095e449..b0c4795ee 100644 --- a/techlibs/xilinx/synth_xilinx.cc +++ b/techlibs/xilinx/synth_xilinx.cc @@ -108,7 +108,7 @@ struct SynthXilinxPass : public ScriptPass log(" flatten design before synthesis\n"); log("\n"); log(" -retime\n"); - log(" run 'abc' with -dff option\n"); + log(" run 'abc' with '-dff -D 1' options\n"); log("\n"); log(" -abc9\n"); log(" use new ABC9 flow (EXPERIMENTAL)\n"); @@ -550,9 +550,9 @@ struct SynthXilinxPass : public ScriptPass } else { if (nowidelut) - run("abc -luts 2:2,3,6:5" + string(retime ? " -dff" : "")); + run("abc -luts 2:2,3,6:5" + string(retime ? " -dff -D 1" : "")); else - run("abc -luts 2:2,3,6:5,10,20" + string(retime ? " -dff" : "")); + run("abc -luts 2:2,3,6:5,10,20" + string(retime ? " -dff -D 1" : "")); } run("clean"); |