[PATCH] power: Fix VSCR position on ucontext

[Tulio Magno Quites Machado Filho]

Joseph Myers <joseph@codesourcery.com> writes:

> I'm seeing the test fail to build for powerpc64-linux-gnu (big-endian) 
> with my build-many-glibcs.py bots.  (That's at least with GCC 7 and GCC 8; 
> my GCC mainline bot hasn't yet run after that commit.)
>
> ../sysdeps/powerpc/powerpc64/tst-ucontext-ppc64-vscr.c: In function 'do_test':
> ../sysdeps/powerpc/powerpc64/tst-ucontext-ppc64-vscr.c:51:3: error: inconsistent operand constraints in an 'asm'
>    asm volatile (".machine push;\n"
>    ^~~
> /scratch/jmyers/glibc-bot/build/glibcs/powerpc64-linux-gnu/glibc/sysd-rules:933: recipe for target '/scratch/jmyers/glibc-bot/build/glibcs/powerpc64-linux-gnu/glibc/stdlib/tst-ucontext-ppc64-vscr.o' failed

I can also reproduce this with --with-cpu=power5, --with-cpu=power6 and without
--with-cpu.

-- 
Tulio Magno