[all-commits] [llvm/llvm-project] 02cfa7: Bump the default target CPU for i386-freebsd to i686

[Dimitry Andric via All-commits]

  Branch: refs/heads/master
  Home:   https://github.com/llvm/llvm-project
  Commit: 02cfa7530d9e7cfd8ea940dab4173afb7938b831
      https://github.com/llvm/llvm-project/commit/02cfa7530d9e7cfd8ea940dab4173afb7938b831
  Author: Dimitry Andric <dimitry at andric.com>
  Date:   2020-07-12 (Sun, 12 Jul 2020)

  Changed paths:
    M clang/lib/Driver/ToolChains/Arch/X86.cpp

  Log Message:
  -----------
  Bump the default target CPU for i386-freebsd to i686

Summary:
Similar to what we have done downstream, some time ago:
https://svnweb.freebsd.org/changeset/base/353936

This followed some discussions on the freebsd-arch mailing lists, and
most people agreed that it was a better default, and also it worked
around several issues where clang generated libcalls to 64 bit atomic
primitives, instead of using cmpxchg8b.

Reviewers: emaste, brooks, rsmith

Reviewed By: emaste

Subscribers: arichardson, krytarowski, jfb, cfe-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D83645