diff options
Diffstat (limited to 'passes/opt')
-rw-r--r-- | passes/opt/opt_dff.cc | 11 |
1 files changed, 7 insertions, 4 deletions
diff --git a/passes/opt/opt_dff.cc b/passes/opt/opt_dff.cc index 6ff2d1b4b..f090d20b2 100644 --- a/passes/opt/opt_dff.cc +++ b/passes/opt/opt_dff.cc @@ -853,14 +853,17 @@ struct OptDffPass : public Pass { log(" opt_dff [-nodffe] [-nosdff] [-keepdc] [-sat] [selection]\n"); log("\n"); log("This pass converts flip-flops to a more suitable type by merging clock enables\n"); - log("and synchronous reset multiplexers, removing unused control inputs, or potentially\n"); - log("removes the flip-flop altogether, converting it to a constant driver.\n"); + log("and synchronous reset multiplexers, removing unused control inputs, or\n"); + log("potentially removes the flip-flop altogether, converting it to a constant\n"); + log("driver.\n"); log("\n"); log(" -nodffe\n"); - log(" disables dff -> dffe conversion, and other transforms recognizing clock enable\n"); + log(" disables dff -> dffe conversion, and other transforms recognizing clock\n"); + log(" enable\n"); log("\n"); log(" -nosdff\n"); - log(" disables dff -> sdff conversion, and other transforms recognizing sync resets\n"); + log(" disables dff -> sdff conversion, and other transforms recognizing sync\n"); + log(" resets\n"); log("\n"); log(" -simple-dffe\n"); log(" only enables clock enable recognition transform for obvious cases\n"); |