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clockgate: help string add -dont_use and -liberty

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This commit is contained in:
Emil J. Tywoniak 2024-11-18 13:57:49 +01:00
parent a5bc36f77e
commit 983c54c75f
1 changed files with 9 additions and 2 deletions
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11
passes/techmap/clockgate.cc
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@ -212,13 +212,20 @@ struct ClockgatePass : public Pass {
log(" user-specified <celltype> ICG (integrated clock gating)\n");
log(" cell with ports named <ce>, <clk>, <gclk>.\n");
log(" The ICG's clock enable pin must be active high.\n");
// TODO -liberty
log(" -liberty <filename>\n");
log(" If specified, ICGs will be selected from the liberty file\n");
log(" if available. Priority is given to cells with fewer tie_lo\n");
log(" inputs and smaller size. This removes the need to manually\n");
log(" specify -pos or -neg and -tie_lo.\n");
log(" -dont_use <celltype>\n");
log(" Cells <celltype> won't be considered when searching for ICGs\n");
log(" in the liberty file specified by -liberty.\n");
log(" -tie_lo <port_name>\n");
log(" Port <port_name> of the ICG will be tied to zero.\n");
log(" Intended for DFT scan-enable pins.\n");
log(" -min_net_size <n>\n");
log(" Only transform sets of at least <n> eligible FFs.\n");
// log(" \n");
log(" \n");
}
// One ICG will be generated per ClkNetInfo