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| author | Eddie Hung <eddie@fpgeh.com> | 2019-08-12 11:32:10 -0700 |
|---|---|---|
| committer | Eddie Hung <eddie@fpgeh.com> | 2019-08-12 11:32:10 -0700 |
| commit | f890cfb63b71ae7b09e19c290ec70c358dcbe9cd (patch) | |
| tree | ea7602c378e794b5e7448361ba2a41d2d6a49c13 /passes/opt/opt_lut.cc | |
| parent | ab1d63a56595f11e10a5326bd83ce84d08badabe (diff) | |
| parent | 78b30bbb1102047585d1a2eac89b1c7f5ca7344e (diff) | |
| download | yosys-f890cfb63b71ae7b09e19c290ec70c358dcbe9cd.tar.gz yosys-f890cfb63b71ae7b09e19c290ec70c358dcbe9cd.tar.bz2 yosys-f890cfb63b71ae7b09e19c290ec70c358dcbe9cd.zip | |
Merge remote-tracking branch 'origin/master' into xc7dsp
Diffstat (limited to 'passes/opt/opt_lut.cc')
| -rw-r--r-- | passes/opt/opt_lut.cc | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/passes/opt/opt_lut.cc b/passes/opt/opt_lut.cc index 587ef878a..4c199ba72 100644 --- a/passes/opt/opt_lut.cc +++ b/passes/opt/opt_lut.cc @@ -101,6 +101,12 @@ struct OptLutWorker { if (cell->type == "$lut") { + if (cell->has_keep_attr()) + continue; + SigBit lut_output = cell->getPort("\\Y"); + if (lut_output.wire->get_bool_attribute("\\keep")) + continue; + int lut_width = cell->getParam("\\WIDTH").as_int(); SigSpec lut_input = cell->getPort("\\A"); int lut_arity = 0; |