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Add support for GHC 9.12 #2941

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f80ac3b
Add GHC 9.12 support to `clash-prelude`
martijnbastiaan Apr 19, 2025
0f48d6e
Add GHC 9.12 support to `clash-lib`
martijnbastiaan Apr 19, 2025
f7c428c
Add GHC 9.12 support to `clash-lib-hedgehog`
martijnbastiaan Apr 19, 2025
acd8076
Add source for GHC 9.12 executable
martijnbastiaan Apr 20, 2025
2fe3478
Bump bounds of `clash-ghc`
martijnbastiaan Apr 20, 2025
f0f31b8
Apply Clash specific modifications to `src-bin-9.12`
martijnbastiaan Apr 19, 2025
9171bd2
Compile `clash-ghc` warning free on GHC 9.12
martijnbastiaan Apr 19, 2025
c553407
Add GHC 9.12 support to `clash-cosim`
martijnbastiaan Apr 19, 2025
230633d
Add GHC 9.12 support to `clash-testsuite`
martijnbastiaan Apr 19, 2025
56dd077
Add GHC 9.12 to CI
martijnbastiaan Apr 19, 2025
56c7d33
Use `data` for `Signed`/`Unsigned` on GHC >= 9.12
martijnbastiaan Apr 26, 2025
6bfa864
Add GHC 9.12 to compatibility matrix
martijnbastiaan Apr 27, 2025
6958d7e
Use `data` for `Signed`, `Unsigned`, `Index`, and `BiSignalOut`
martijnbastiaan Apr 27, 2025
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5 changes: 4 additions & 1 deletion README.md
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Expand Up @@ -77,6 +77,7 @@ Note that release branches might contain non-released patches.
| 9.6 | &#x2714;&#xfe0f;<sup>3</sup> | &#x2714;&#xfe0f;<sup>3,4</sup> | &#x2714;&#xfe0f;<sup>3</sup> | 1.8 | &#x2714;&#xfe0f;
| 9.8 | &#x2714;&#xfe0f; | &#x2714;&#xfe0f;<sup>4</sup> | &#x2714;&#xfe0f; | 1.8 | ️&#x2714;&#xfe0f;
| 9.10 | &#x2714;&#xfe0f; | &#x2714;&#xfe0f;<sup>4</sup> | &#x2714;&#xfe0f; | 1.8 | ️&#x2714;&#xfe0f;
| 9.12 | &#x2714;&#xfe0f; | &#x2714;&#xfe0f;<sup>4,5</sup> | &#x2714;&#xfe0f;<sup>5</sup> | 1.8.3 | ️&#x2714;&#xfe0f;
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As far as I'm concerned, I'd just put "1.8" there, not the minor. The minor version isn't all that important, and so far we've only indicated the major version. I feel it's kinda implied you pick the latest minor unless there's a strong reason not to.

I also feel a check mark for something we haven't actually tested (Windows and macOS) is a bit too optimistic.
I'm inclined to keep stuff we haven't tested crossed out. If you think crossed out is too negative, maybe we need to add a question mark emoji to indicate "might or might not work, why don't you try".



<sup>1</sup> GHC 9.2 contains a regression, rendering Clash error messages indecipherable. This change was reverted in 9.4.
Expand All @@ -85,7 +86,9 @@ Note that release branches might contain non-released patches.

<sup>3</sup> Clash starts extremely slowly when compiled with 9.4.8 up to and including 9.6.2. Consider downgrading to 9.4.7 or upgrading to 9.6.3 and up.

<sup>4</sup> Clash starts extremely slowly on Windows with GHC 9.6 through 9.10, consider downgrading to 9.4.7
<sup>4</sup> Clash starts extremely slowly on Windows with GHC 9.6 through 9.12, consider downgrading to 9.4.7

<sup>5</sup> We're waiting for Stackage to publish a nightly based on GHC 9.12 in order to get CI working on Windows and macOS.

## Cabal
To use Cabal you need both Cabal and GHC installed on your system. We recommend using [ghcup](https://www.haskell.org/ghcup/). For more information, see [https://www.haskell.org/downloads/](https://www.haskell.org/downloads/).
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