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From: "linkw at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug middle-end/94449] [10 Regression] FAIL:
 gcc.c-torture/execute/pr92904.c gcc.dg/torture/pr48731.c
Date: Thu, 02 Apr 2020 02:28:57 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D94449

--- Comment #10 from Kewen Lin <linkw at gcc dot gnu.org> ---
(In reply to H.J. Lu from comment #9)
> (In reply to Kewen Lin from comment #8)
> > May I ask for the configuration option?=20
> >=20
> > I used x86_64 machine in CFarm with cpuinfo
> >=20
>=20
> I used
>=20
> --prefix=3D/usr/10.0.1 --enable-clocale=3Dgnu --with-system-zlib --enable=
-shared
> --enable-cet --with-demangler-in-ld --with-fpmath=3Dsse

Thanks, but it didn't work on my side. I guessed it's due to different nati=
ve.

gcc -march=3Dnative -Q --help=3Dtarget|grep march
  -march=3D                               corei7-avx

$ ./t.sh -march=3Dznver2
internal compiler error: verify_ssa failed

$ ./t.sh -march=3Dicelake-server
internal compiler error: verify_ssa failed

$ ./t.sh -march=3Dcorei7-avx  =3D=3D> works fine.

I guess I can't just specify the arch option like --with-arch=3Dznver2 for
configure, since native arch probably misses the support of some instructio=
ns
for znver2? I have no idea on x86 arch, is it possible?=