Re: [PATCH] PR 66474, Document using %x<n> for VSX registers on PowerPC

[Michael Meissner <meissner@linux.vnet.ibm.com>]

On Tue, Jun 09, 2015 at 08:28:35PM -0400, David Edelsohn wrote:
> On Tue, Jun 9, 2015 at 3:26 PM, Michael Meissner
> <meissner@linux.vnet.ibm.com> wrote:
> > On Tue, Jun 09, 2015 at 02:17:19PM -0500, Segher Boessenkool wrote:
> >> On Tue, Jun 09, 2015 at 02:00:48PM -0400, Michael Meissner wrote:
> >> > +asm ("xvadddp %x0,%x1,%x2" "=wa" (v1) : "wa" (v2), "wa" (v3));
> >>
> >> A colon went missing?       ^^^
> >
> > Yes, I will correct it when I check it in.  Thanks.
> 
> Mike,
> 
> VSX registers are a superset of Altivec registers, so the statement
> about an Altivec register used where a VSX register is expected is a
> little confusing.  How about:
> 
> Otherwise the register number output in the assembly file will be
> incorrect if an Altivec register is an operand of a VSX instruction
> that expects VSX register numbering.

The re-wording is fine with me.  I will check in the patch.  Thanks.

-- 
Michael Meissner, IBM
IBM, M/S 2506R, 550 King Street, Littleton, MA 01460-6245, USA
email: meissner@linux.vnet.ibm.com, phone: +1 (978) 899-4797