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

Dávid Bolvanský via Phabricator via llvm-commits llvm-commits at lists.llvm.org
Sat Sep 7 06:50:33 PDT 2019

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xbolva00 added a comment.

I am wondering if this can solve bad perf with avx512 reported here:
https://www.phoronix.com/scan.php?page=article&item=gcc-clang-2019&num=6


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  https://reviews.llvm.org/D67259/new/

https://reviews.llvm.org/D67259

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