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From: "arthur200126 at gmail dot com" <sourceware-bugzilla@sourceware.org>
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Subject: [Bug libc/23249] Epyc and other current AMD CPUs do not select the
 "haswell" platform subdirectory
Date: Sun, 10 May 2020 00:41:46 +0000
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https://sourceware.org/bugzilla/show_bug.cgi?id=3D23249

--- Comment #11 from Mingye Wang <arthur200126 at gmail dot com> ---
I agree that a "generational" revision scheme would be helpful in the long =
run.
For that information we can consult compiler databases
(gcc/gcc/common/config/i386/i386-common.c + gcc/config/i386/i386.h or
llvm/clang/include/clang/Basic/X86Target.def) and make some sort of table to
work with.

The LLVM project's version seems to already imply a generational scheme,
although they appear to be taking a lot of liberties by eliding a lot of the
stuff they don't use. They also don't seem to care about less-used stuff li=
ke
VIA.

The GCC database does include the VIA CPUs, but the part about eden-x4 not
having any sort of AVX is a bit dubious. Hell, their documentation mentions=
 it
having AVX2...

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