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Subject: Re: z constraint in powerpc inline assembly ?
To: Segher Boessenkool <segher@kernel.crashing.org>,
 David Laight <David.Laight@aculab.com>
References: <d72263a1-fe17-3192-6930-35ec8394c699@c-s.fr>
 <e9af1690e51a4d89a8a5c0927eb8430a@AcuMS.aculab.com>
 <20200116162151.GR3191@gate.crashing.org>
From: Christophe Leroy <christophe.leroy@c-s.fr>
Message-ID: <0c217c4c-51cb-d5f3-237e-4fb4e2f6532c@c-s.fr>
Date: Thu, 16 Jan 2020 18:10:56 +0100
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Le 16/01/2020 à 17:21, Segher Boessenkool a écrit :
> Christophe uses a very primitive 32-bit cpu, not even superscalar.  A
> loop doing adde is pretty much optimal, probably wants some unrolling
> though.

You mean the mpc8xx , but I'm also using the mpc832x which has a e300c2 
core and is capable of executing 2 insns in parallel if not in the same 
Unit.

Christophe