[commit: ghc] master: relnotes: Note enabling of -fllvm-pass-vectorse-in-regs (c1bc923)

[git at git.haskell.org]

Repository : ssh://git@git.haskell.org/ghc

On branch  : master
Link       : http://ghc.haskell.org/trac/ghc/changeset/c1bc923b08860101d0b74795ff42f6022c7fec0b/ghc

>---------------------------------------------------------------

commit c1bc923b08860101d0b74795ff42f6022c7fec0b
Author: Ben Gamari <ben at smart-cactus.org>
Date:   Tue Nov 7 09:58:59 2017 -0500

    relnotes: Note enabling of -fllvm-pass-vectorse-in-regs
    
    [skip ci]


>---------------------------------------------------------------

c1bc923b08860101d0b74795ff42f6022c7fec0b
 docs/users_guide/8.4.1-notes.rst | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/docs/users_guide/8.4.1-notes.rst b/docs/users_guide/8.4.1-notes.rst
index 49dd861..28e93b2 100644
--- a/docs/users_guide/8.4.1-notes.rst
+++ b/docs/users_guide/8.4.1-notes.rst
@@ -243,6 +243,10 @@ Compiler
   ``configure`` flag, which can be used to build a GHC using compilers on your
   ``PATH`` instead of using the bundled bindist. See :ghc-ticket:`13792`
 
+- GHC now enables :ghc-flag:`-fllvm-pass-vectors-in-regs` by default. This means
+  that GHC will now use native vector registers to pass vector arguments across
+  function calls.
+
 - The optional ``instance`` keyword is now usable in type family instance
   declarations. See :ghc-ticket:`13747`