From mboxrd@z Thu Jan 1 00:00:00 1970 From: Andreas Schwab Subject: Re: [RFC PATCH 1/2] arch/m68k/lib/mulsi3.S: Optimize] Date: Thu, 12 May 2016 10:35:02 +0200 Message-ID: References: <20160512080429.31536.qmail@ns.horizon.com> Mime-Version: 1.0 Content-Type: text/plain Return-path: In-Reply-To: <20160512080429.31536.qmail@ns.horizon.com> (George Spelvin's message of "12 May 2016 04:04:29 -0400") Sender: linux-m68k-owner@vger.kernel.org List-Id: linux-m68k@vger.kernel.org To: George Spelvin Cc: geert@linux-m68k.org, gerg@linux-m68k.org, linux-m68k@lists.linux-m68k.org "George Spelvin" writes: > I went digging through a lot of ColdFire documentation to see if > there were ever any that needed it, and apparently it's been in there > since the beginning. > > It did occur to me that perhaps someone wanted to support tne > intersection of all 68k family CPUs, so that meant only MULU.W > and ADD.L. But I can't see a gcc option to ask for that. My guess is that someone added the support just to get it through the assembler, without thinking about not compiling it at all for coldfire configurations. Andreas. -- Andreas Schwab, schwab@linux-m68k.org GPG Key fingerprint = 58CA 54C7 6D53 942B 1756 01D3 44D5 214B 8276 4ED5 "And now for something completely different."