[Bug middle-end/87256] hppa spends huge amount of time in synth_mult()

[mattst88 at gmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87256

--- Comment #8 from Matt Turner <mattst88 at gmail dot com> ---
This xxhash.c file is embedded in many different projects, and is really
causing problems on gentoo/hppa:

zstandard: Fri Mar 15 14:16:42 2019: 7 hours, 29 minutes, 49 seconds

Are we any closer to a fix than we were six months ago?