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Date: Tue, 19 Feb 2019 10:07:57 -0800
From: bob prohaska <fbsd@www.zefox.net>
To: freebsd-arm@freebsd.org
Subject: Clang segfault on rpi3 workaround using -O2
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The segfaults in clang during buildworld on rpi3 persisted past
r339376, but a hint from 
https://github.com/android-ndk/ndk/issues/386
suggested trying CFLAGS=-O2 as a long-shot workaround.

To my surprise, it worked. Three passes were required to
clear the segfaults, but now a -j4 buildworld/buildkernel
cycle runs without error to completion. A test of www/chromium
is underway now, and about half finished with no errors yet,
using r344113.

The github report is more than a year old and notes that
clang was fixed around that time. Is it possible the fix
didn't find its way into FreeBSD?

Thanks for reading,

bob prohaska