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sdf_cond missing in hd libraries #382

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maliberty opened this issue Jul 11, 2022 · 2 comments
Open

sdf_cond missing in hd libraries #382

maliberty opened this issue Jul 11, 2022 · 2 comments
Labels
files-timing-liberty Issues related to Liberty timing files. lib-sky130_fd_sc_hd Issues with the "high density" digital standard cells provided by the SkyWater foundry. type-bug Something isn't working

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@maliberty
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Expected Behavior

sdf_cond statements should be present on conditional arcs in Liberty.

Actual Behavior

They are present in the hs library but not the hd library.

Steps to Reproduce the Problem

Compare the hs library which has sdf_cond for mux2_1 to the hd library which does not.

Specifications

  • Version: latest (per link in this repo)
  • Platform: any
@proppy proppy added lib-sky130_fd_sc_hd Issues with the "high density" digital standard cells provided by the SkyWater foundry. type-bug Something isn't working files-timing-liberty Issues related to Liberty timing files. labels Jul 28, 2022
@proppy
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proppy commented Jul 28, 2022

Did a quick survey of all the sc libraries:

🍡 grep sdf_cond sky130_fd_sc_hd/latest/cells/mux2/*.lib.json | wc -l
0
🍙 grep sdf_cond sky130_fd_sc_hdll/latest/cells/mux2/*.lib.json | wc -l
264
🍊 grep sdf_cond sky130_fd_sc_hs/latest/cells/mux2/*.lib.json | wc -l
378
🍡 grep sdf_cond sky130_fd_sc_hvl/latest/cells/mux2/*.lib.json | wc -l
96
🍙 grep sdf_cond sky130_fd_sc_lp/latest/cells/mux2/*.lib.json | wc -l
672
🍡 grep sdf_cond sky130_fd_sc_ls/latest/cells/mux2/*.lib.json | wc -l
342
🍙 grep sdf_cond sky130_fd_sc_ms/latest/cells/mux2/*.lib.json | wc -l
306

Do we know if we expect every *.lib.json for each standard cell to have at least one sdf_cond directive, or if "it depends" :)

@proppy
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proppy commented Jul 28, 2022

It also seems that sdf_cond is missing for all the cells in hd:

🍊 grep sdf_cond sky130_fd_sc_hd/latest/cells/*/*.lib.json | wc -l
0

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Labels
files-timing-liberty Issues related to Liberty timing files. lib-sky130_fd_sc_hd Issues with the "high density" digital standard cells provided by the SkyWater foundry. type-bug Something isn't working
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