[Bug target/84772] powerpc-spe: Spurious "is used uninitialized" warning, or possibly incorrect codegen for va_arg(long double)

[zackw at panix dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=84772

--- Comment #2 from Zack Weinberg <zackw at panix dot com> ---
You don't appear to have the exact same build as me.  But there's something
fishy going on with that, because as far as I can tell, SVN rev 258338 is a
*trunk* revision, not a gcc-7-branch revision.

Anyway, I'm gonna attach a .stdarg dump from the compiler that does trigger the
problem, maybe comparing that to the .stdarg dump you get will help?