diff options
| author | Ben Gamari <ben@smart-cactus.org> | 2020-10-06 13:16:39 -0400 |
|---|---|---|
| committer | Ben Gamari <ben@smart-cactus.org> | 2020-10-07 09:10:18 -0400 |
| commit | 25aa03e768a33963d5ec19ab7e088138086fbad4 (patch) | |
| tree | c8fcbdb48a009b72d9b5ea5b220489a8b1b62c65 | |
| parent | 531624b4c445e6d97e5ad1e7fcd65c15ba4fede9 (diff) | |
| download | haskell-wip/keepAlive-optionH.tar.gz | |
docs: Mention keepAlive# in the release noteswip/keepAlive-optionH
| -rw-r--r-- | docs/users_guide/9.0.1-notes.rst | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/docs/users_guide/9.0.1-notes.rst b/docs/users_guide/9.0.1-notes.rst index 45a796fb07..dcbfbde786 100644 --- a/docs/users_guide/9.0.1-notes.rst +++ b/docs/users_guide/9.0.1-notes.rst @@ -351,6 +351,13 @@ Haddock - ``Void#`` is now a type synonym for the unboxed tuple ``(# #)``. Code using ``Void#`` now has to enable :extension:`UnboxedTuples`. +- Add a pair of new operations, ``keepAliveLifted#`` and ``keepAliveUnlifted#`` + to :ghc-prim:`GHC.Magic` which supersede the ``touch#`` primitive in most + cases. Unlike ``touch#`` these operations do not suffer from fragility in the + presence of simplification (see :ghc-ticket:`17760`). Users are strongly + encouraged to audit their code-bases for uses of ``touch#`` and replace them + with the appropriate ``keepAlive#`` function if possible. + ``ghc`` library ~~~~~~~~~~~~~~~ |