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Use :<>= in VecInit methods instead of := or <> #4248

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Jul 9, 2024
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@jackkoenig jackkoenig commented Jul 8, 2024

This is a more focused fix for the issue hit by @sequencer in [1], credit to @mwachs5 for coming up with this solution.

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Previously, VecInit would try to "intelligently" select := or <> depending on if the type is bidirectional. :<>= has the desirable behavior here for both passive and bidirectional types. It also has the advantage over <> of handling internal wires.

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Previously, VecInit would try to "intelligently" select := or <>
depending on if the type is bidirectional. :<>= has the desirable
behavior here for both passive and bidirectional types. It also has the
advantage over <> of handling internal wires.
@jackkoenig jackkoenig added the Bugfix Fixes a bug, will be included in release notes label Jul 8, 2024
@jackkoenig jackkoenig added this to the 6.x milestone Jul 8, 2024
@jackkoenig jackkoenig requested a review from mwachs5 July 8, 2024 20:10
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LGTM, waiting for chipsalliance/t1#647 sett if hit any other corner cases in our design.

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chipsalliance/t1#647 is green so I'm going to merge!

@jackkoenig jackkoenig merged commit 255d3d4 into main Jul 9, 2024
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@jackkoenig jackkoenig deleted the fix-vec-init-bidir branch July 9, 2024 00:51
@mergify mergify bot added the Backported This PR has been backported label Jul 9, 2024
mergify bot pushed a commit that referenced this pull request Jul 9, 2024
Previously, VecInit would try to "intelligently" select := or <>
depending on if the type is bidirectional. :<>= has the desirable
behavior here for both passive and bidirectional types. It also has the
advantage over <> of handling internal wires.

(cherry picked from commit 255d3d4)
chiselbot pushed a commit that referenced this pull request Jul 9, 2024
* Use :<>= in VecInit methods instead of := or <> (#4248)

Previously, VecInit would try to "intelligently" select := or <>
depending on if the type is bidirectional. :<>= has the desirable
behavior here for both passive and bidirectional types. It also has the
advantage over <> of handling internal wires.

(cherry picked from commit 255d3d4)

* Fix test for 6.x

---------

Co-authored-by: Jack Koenig <koenig@sifive.com>
Co-authored-by: mergify[bot] <37929162+mergify[bot]@users.noreply.github.com>
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2 participants