diff options
Diffstat (limited to 'passes/techmap/abc9.cc')
-rw-r--r-- | passes/techmap/abc9.cc | 61 |
1 files changed, 36 insertions, 25 deletions
diff --git a/passes/techmap/abc9.cc b/passes/techmap/abc9.cc index b57ea3cf7..1a5604f7d 100644 --- a/passes/techmap/abc9.cc +++ b/passes/techmap/abc9.cc @@ -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"); } } |