[Bug 224669] [exp-run] Against projects/clang600-import branch

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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=224669

--- Comment #60 from Dimitry Andric <dim at FreeBSD.org> ---
(In reply to Jan Beich from comment #59)
> Dimitry, assuming cluster machines support AVX2 how useful an -exp run with
> the following in make.conf would be in terms of uncovering Clang crashes?
> Would C++98 workaround get in the way if applied for better coverage?
> 
>   CPUTYPE ?= native
>   # XXX bug 112997: Haswell-like
>   MACHINE_CPU += avx2 avx sse42 sse41 ssse3 sse3 popcnt fma3
>   .if ${MACHINE_CPUARCH} == i386
>   MACHINE_CPU += sse2 sse i686 mmx i586 i486
>   .endif
> 
> Reading bug 223300 and bug 225488 I get the impression quite a few of our
> users tweak CPUTYPE.

Hmm, I'm not really a big fan of the 'native' setting, I'd rather just specify
the exact CPU we're targeting instead.  So if you want AVX2, I think specifying
CPUTYPE=core-avx2 should be enough?

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