svn commit: r353936 - head/contrib/llvm/tools/clang/lib/Driver/ToolChains/Arch
Alexey Dokuchaev
danfe at freebsd.org
Thu Oct 24 08:26:09 UTC 2019
On Wed, Oct 23, 2019 at 04:57:12PM +0000, Dimitry Andric wrote:
> New Revision: 353936
> URL: https://svnweb.freebsd.org/changeset/base/353936
>
> Log:
> Bump clang's default target CPU for the i386 architecture (aka "x86") to
> i686, as per the discussion on the freebsd-arch mailing list. Earlier
> in r352030, I had already bumped it to i586, to work around missing
> atomic 64 bit functions for the i386 architecture.
Why i686, not i586? i486 lacking 64-bit atomics is a sound and valid
reason, but I don't understand why i586 wasn't chosen, and quick review
of that -arch thread did not help. Could you shed some more light here?
./danfe
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