Simon Jakobi pushed to branch wip/sjakobi/T25450-print-cpu at Glasgow Haskell Compiler / GHC Commits: 60110d3f by Simon Jakobi at 2026-05-29T11:59:06+02:00 changelog.d: Restore code block using indentation syntax The previous commit dropped the JSON example because a '{' in a brace-delimited field value (description: { ... }) makes the Cabal Distribution.Fields parser fail. Indentation-delimited field values are not affected, so switch to that syntax and restore the example. Verified against Cabal-3.16's readFields': the brace form rejects any '{' or '}' anywhere in the content, while the indentation form parses the same content cleanly. Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com> - - - - - 1 changed file: - changelog.d/print-enabled-cpu-features Changes: ===================================== changelog.d/print-enabled-cpu-features ===================================== @@ -3,12 +3,16 @@ synopsis: Add --print-enabled-cpu-features flag issues: #25450 mrs: !16117 -description: { +description: GHC now supports a new mode flag ``--print-enabled-cpu-features``, which prints a JSON object describing the CPU features currently enabled for code generation, together with a minimal set of ``-m...`` flags that would reproduce the non-default effective feature set for the current target. - Dynamic options such as ``-mavx2`` and ``-mbmi2`` are respected. + Dynamic options such as ``-mavx2`` and ``-mbmi2`` are respected. :: + + $ ghc -mavx2 --print-enabled-cpu-features + {"tag":"enabled-cpu-features","version":1,"target":"x86_64-linux-gnu", + "features":["SSE2","SSE3","SSSE3","SSE4.1","SSE4.2","AVX","AVX2"], + "as_m_flags":["-mavx2"]} This is a first step toward implementing ``-march=native``. -} View it on GitLab: https://gitlab.haskell.org/ghc/ghc/-/commit/60110d3f185cae5147fabc4c879c761e... -- View it on GitLab: https://gitlab.haskell.org/ghc/ghc/-/commit/60110d3f185cae5147fabc4c879c761e... You're receiving this email because of your account on gitlab.haskell.org.