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From: "mikpelinux at gmail dot com" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug target/95952] [8 Regression] gcc-8 bootstrap failure on
 powerpc64-linux
Date: Thu, 02 Jul 2020 16:10:13 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D95952

--- Comment #12 from Mikael Pettersson <mikpelinux at gmail dot com> ---
(In reply to Peter Bergner from comment #11)
> At some point in the past, GCC used to disable some instruction patterns
> depending on whether the binutils you're building against supports those
> instructions or not.  Now, GCC will always generate every instruction you
> ask it to, but you might get an assembler error trying to assemble those
> instructions.  I think that change was somewhere in the GCC8 or GCC9
> timeframe.  It could be your old binutils in GCC8 is silently turning off
> some support and that is causing the problem.  I'll try building a 2.23ish
> binutils and using that for my GCC8 build.

OK.  Meanwhile I had a successful bootstrap of GCC8 with binutils-2.34.=