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abc9: cleanup

This commit is contained in:
Eddie Hung 2020-04-15 09:38:29 -07:00
parent 0d84ff3fc4
commit fb447951be
1 changed files with 11 additions and 7 deletions
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18
passes/techmap/abc9.cc
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@ -280,7 +280,8 @@ struct Abc9Pass : public ScriptPass
if (check_label("dff", "(only if -dff)")) {
if (dff_mode || help_mode) {
run("abc9_ops -prep_dff_hier"); // derive all used (* abc9_flop *) modules
run("abc9_ops -prep_dff_hier"); // derive all used (* abc9_flop *) modules,
// create stubs in $abc9_unmap design
run("design -stash $abc9");
run("design -copy-from $abc9 @$abc9_flops"); // copy derived modules in
run("proc");
@ -288,8 +289,11 @@ struct Abc9Pass : public ScriptPass
run("techmap");
run("opt");
run("abc9_ops -prep_dff_map"); // rewrite specify
// TODO: Select fan-in cone $_DFF_[NP]_.Q
run("setattr -set submod \"$abc9_flop\" t:* t:$_DFF_N_ %d t:$_DFF_P_ %d");
// select all $_DFF_[NP]_
// then select all its fanins
// then select all fanouts of all that
// lastly remove $_DFF_[NP]_ cells
run("setattr -set submod \"$abc9_flop\" t:$_DFF_?_ %ci* %co* t:$_DFF_?_ %d");
run("submod");
run("design -copy-to $abc9 *_$abc9_flop"); // copy submod out
run("delete *_$abc9_flop");
@ -306,12 +310,12 @@ struct Abc9Pass : public ScriptPass
}
run("design -stash $abc9_map");
run("design -load $abc9");
run("abc9_ops -prep_dff_unmap"); // create $abc9_unmap design
run("techmap -map %$abc9_map"); // techmap user design into submod + $_DFF_[NP]_
run("setattr -mod -set whitebox 1 -set abc9_flop 1 -set abc9_box 1 *_$abc9_flop");
run("design -delete $abc9");
run("design -delete $abc9_map");
run("select -unset $abc9_flops");
run("abc9_ops -prep_dff_unmap"); // implement $abc9_unmap design
run("techmap -map %$abc9_map"); // techmap user design into submod + $_DFF_[NP]_
run("design -delete $abc9_map");
run("setattr -mod -set whitebox 1 -set abc9_flop 1 -set abc9_box 1 *_$abc9_flop");
}
}