[Bug target/96015] [10/11 Regression] gcc-10.1.0 miscompiles Python on hppa

[slyfox at inbox dot ru]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=96015

--- Comment #5 from Sergei Trofimovich <slyfox at inbox dot ru> ---
I ran the test in qemu-hppa (qemu user binary emulation) against Gentoo's
hppa2.0 root system as:
    /usr/bin/qemu-hppa -L /usr/hppa2.0-unknown-linux-gnu/ "$@"
where /usr/hppa2.0-unknown-linux-gnu/ is a hppa SYSROOT.

Cross-compiler is generated with Gentoo's 'crossdev' tool as:
   # crossdev hppa2.0-unknown-linux-gnu
The command builds cross-binutils, cross-gcc with
--sysroot=/usr/hppa2.0-unknown-linux-gnu/ and puts glibc into
/usr/hppa2.0-unknown-linux-gnu/.

Full native root system is also at
http://distfiles.gentoo.org/releases/hppa/autobuilds/current-stage3-hppa2.0/
(stage3-hppa2.0-*.tar.bz2 tarballs). Should be good enough to be used for
qemu-hppa as-is.

I also plan to pass through the assembly dump this evening to get the idea
where incorrect code got generated to spare you the debugging.