[PATCH] D83645: Bump the default target CPU for i386-freebsd to i686

[Dimitry Andric via Phabricator via cfe-commits]

dim created this revision.
dim added reviewers: emaste, brooks, rsmith.
Herald added subscribers: jfb, krytarowski, arichardson.
Herald added a project: clang.

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.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D83645

Files:
  clang/lib/Driver/ToolChains/Arch/X86.cpp


Index: clang/lib/Driver/ToolChains/Arch/X86.cpp
===================================================================
--- clang/lib/Driver/ToolChains/Arch/X86.cpp
+++ clang/lib/Driver/ToolChains/Arch/X86.cpp
@@ -94,6 +94,7 @@
 
   switch (Triple.getOS()) {
   case llvm::Triple::FreeBSD:
+    return "i686";
   case llvm::Triple::NetBSD:
   case llvm::Triple::OpenBSD:
     return "i486";


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