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| author | Miodrag Milanovic <mmicko@gmail.com> | 2019-08-09 09:46:37 +0200 |
|---|---|---|
| committer | Miodrag Milanovic <mmicko@gmail.com> | 2019-08-09 09:46:37 +0200 |
| commit | 7a860c562323b8279cdbb8626a47ac8466c78b4c (patch) | |
| tree | d713b5c04ab34aadcbd310237a8cc46951f83e37 /passes/opt/opt_lut.cc | |
| parent | 8a3329871ba7bab98982a101327b8375cd73344d (diff) | |
| parent | ac2fc3a144fe1094bedcc6b3fda8a498ad43ae76 (diff) | |
| download | yosys-7a860c562323b8279cdbb8626a47ac8466c78b4c.tar.gz yosys-7a860c562323b8279cdbb8626a47ac8466c78b4c.tar.bz2 yosys-7a860c562323b8279cdbb8626a47ac8466c78b4c.zip | |
Merge remote-tracking branch 'upstream/master' into efinix
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; |