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pdn: correct the instance obstruction calculation #4117

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Use max(halo, min_space) rather than halo + min_space to bloat the instance. This was causing gf12/tinyRocket to fail due to false strap / obs overlap.

@maliberty maliberty marked this pull request as ready for review October 10, 2023 15:43
@maliberty maliberty requested a review from gadfort October 10, 2023 15:44
Use max(halo, min_space) rather than halo + min_space to bloat the instance.
This was causing gf12/tinyRocket to fail due to false strap / obs overlap.

Signed-off-by: Matt Liberty <mliberty@precisioninno.com>
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clang-tidy review says "All clean, LGTM! 👍"

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clang-tidy review says "All clean, LGTM! 👍"

@maliberty maliberty merged commit 0dff30d into The-OpenROAD-Project:master Oct 10, 2023
@maliberty maliberty deleted the pdn-obs-fix branch October 10, 2023 16:58
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3 participants