Simon Jakobi pushed to branch wip/sjakobi/T25450-print-cpu at Glasgow Haskell Compiler / GHC

Commits:

• 07e80ec3
  by Simon Jakobi at 2026-05-29T10:30:43+02:00

  changelog.d: Remove code block from description
  
  The changelog-d parser uses the Cabal library's Distribution.Fields
  lexer, which tokenises '{' as a block-delimiter token (LBrace)
  unconditionally. A description block containing a line whose first
  non-whitespace character is '{' (e.g. a JSON example) therefore fails
  to parse with "unexpected {, expecting field contents or }".
  
  Remove the code block to fix the CI lint-changelog failure.
  

1 changed file:

• changelog.d/print-enabled-cpu-features

Changes:

   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`` (:ghc-ticket:`25450`).

+  This is a first step toward implementing ``-march=native``.

 }