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abc9: suppress warnings when no compatible + used flop boxes formed

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This commit is contained in:
Eddie Hung 2020-04-15 15:41:55 -07:00
parent cdd250ef16
commit 8d7b3c06b2
3 changed files with 66 additions and 38 deletions
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61
passes/techmap/abc9.cc
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@ -281,41 +281,52 @@ 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,
// create stubs in $abc9_unmap design
// create stubs in $abc9_unmap design
run("design -stash $abc9");
run("design -copy-from $abc9 @$abc9_flops"); // copy derived modules in
run("proc");
run("wbflip");
run("techmap");
run("opt");
if (!help_mode)
active_design->scratchpad_unset("abc9_ops.prep_dff_map.did_something");
run("abc9_ops -prep_dff_map"); // rewrite specify
// 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 *_$abc9_flop");
if (help_mode) {
run("foreach module in design");
run(" rename <module-name>_$abc9_flop _TECHMAP_REPLACE_");
bool did_something = help_mode || active_design->scratchpad_get_bool("abc9_ops.prep_dff_map.did_something");
if (did_something) {
// 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 *_$abc9_flop");
if (help_mode) {
run("foreach module in design");
run(" rename <module-name>_$abc9_flop _TECHMAP_REPLACE_");
}
else {
// Rename all submod-s to _TECHMAP_REPLACE_ to inherit name + attrs
for (auto module : active_design->selected_modules()) {
active_design->selected_active_module = module->name.str();
if (module->cell(stringf("%s_$abc9_flop", module->name.c_str())))
run(stringf("rename %s_$abc9_flop _TECHMAP_REPLACE_", module->name.c_str()));
}
}
run("design -stash $abc9_map");
run("design -load $abc9");
run("design -delete $abc9");
run("select -unset $abc9_flops");
run("techmap -wb -map %$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");
run("abc9_ops -prep_dff_unmap"); // implement $abc9_unmap design
}
else {
// Rename all submod-s to _TECHMAP_REPLACE_ to inherit name + attrs
for (auto module : active_design->selected_modules()) {
active_design->selected_active_module = module->name.str();
run(stringf("rename %s_$abc9_flop _TECHMAP_REPLACE_", module->name.c_str()));
}
run("design -load $abc9");
run("design -delete $abc9");
run("select -unset $abc9_flops");
}
run("design -stash $abc9_map");
run("design -load $abc9");
run("design -delete $abc9");
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");
}
}