[PATCH] D67259: [X86] Enable -mprefer-vector-width=256 by default for Skylake-avx512 and later Intel CPUs.

[Dávid Bolvanský via Phabricator via llvm-commits]

xbolva00 added inline comments.


================
Comment at: clang/docs/ReleaseNotes.rst:64
+  to run at a lower frequency which can impact performance. This behavior can be
+  changed by passing -mprefer-vector=512 on the command line.
 
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 -mprefer-vector-width=512 ?


CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D67259/new/

https://reviews.llvm.org/D67259