From klebinger.andreas at gmx.at Fri Jan 17 11:02:55 2025 From: klebinger.andreas at gmx.at (Andreas Klebinger) Date: Fri, 17 Jan 2025 12:02:55 +0100 Subject: [PSA]: Correctness issue in GHC-9.12 Message-ID: <80fdf81c-84eb-4265-8214-ad5f6ea50174@gmx.at> A bug in 9.12.1 was reported and confirmed (ghc bug https://gitlab.haskell.org/ghc/ghc/-/issues/25653) which can lead to incorrect runtime results in compiled programs. In particular this seems to happen for sub-word divisions with a known divisor when optimizations are enabled and affects at least the x86 backend, although it’s likely that other backends are also affected. We plan to release a bug fix release 9.12.2 in the near future to address this issue and recommend people do not upgrade until then. -------------- next part -------------- An HTML attachment was scrubbed... URL: