fix: use stat -hierarchy for hierarchical synth to report area#4109
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maliberty merged 3 commits intoThe-OpenROAD-Project:masterfrom Apr 14, 2026
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When SYNTH_HIERARCHICAL=1, the yosys stat command reports zero area for the top module because all cells are in submodules. Adding -hierarchy makes stat include submodule area, so synth__design__instance__area__stdcell is no longer N/A. Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com> Signed-off-by: Øyvind Harboe <oyvind.harboe@zylin.com>
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@maliberty I think there is a problem on pr-merge: |
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Apr 6, 2026
There is no harm in always using -hierarchy flag. It reports the same results for flat designs and correctly includes submodule area for hierarchical designs. Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com> Signed-off-by: Øyvind Harboe <oyvind.harboe@zylin.com>
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@maliberty Looks like some pr-merge instability that we've been seeing. |
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@maliberty Ping? |
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This does break genMetrics so it will need some attention. |
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Makes sense. Should I file a feature request or is it adequately tracked here? This is part of the grander plan of getting rid of docker + supporting config.mk DSL (i.e. bazel build for all designs in ORFS). Not enormously urgent, but nice to have chalked off. Will bubble its way to the top of the list eventually... |
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this is sufficient |
…hical Signed-off-by: Matt Liberty <mliberty@precisioninno.com>
maliberty
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Apr 13, 2026
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When SYNTH_HIERARCHICAL=1, the yosys stat command reports zero area for the top module because all cells are in submodules. Adding -hierarchy makes stat include submodule area, so
synth__design__instance__area__stdcell is no longer N/A.