On Wed, Jun 10, 2026 at 5:18 PM Christopher Bazley <[email protected]> wrote:
>
>
> Hi Richard,
>
> On 09/06/2026 12:01, Richard Biener wrote:
> > On Wed, Jun 3, 2026 at 5:21 PM Christopher Bazley <[email protected]>
> > wrote:
> >>
> >> gcc/ChangeLog:
> >>
> >> * doc/md.texi: Update description of vec_init.
> >> ---
> >> gcc/doc/md.texi | 4 +++-
> >> 1 file changed, 3 insertions(+), 1 deletion(-)
> >>
> >> diff --git a/gcc/doc/md.texi b/gcc/doc/md.texi
> >> index 5a2625ce986..dd11c5adaf5 100644
> >> --- a/gcc/doc/md.texi
> >> +++ b/gcc/doc/md.texi
> >> @@ -7501,7 +7501,9 @@ Initialize the vector to given values. Operand 0 is
> >> the vector to initialize
> >> and operand 1 is parallel containing values for individual fields. The
> >> @var{n} mode is the mode of the elements, should be either element mode
> >> of
> >> the vector mode @var{m}, or a vector mode with the same element mode and
> >> -smaller number of elements.
> >> +smaller number of elements. If @var{m} specifies a scalable vector mode,
> >> +then elements beyond the minimum number of elements implied by @var{m} are
> >
> > "beyond the minimum number of elements as specified by operand 1" maybe?
>
> I think that could be misinterpreted to mean that operand 1 specifies
> the minimum number of elements, but it does not.
>
> How about "elements beyond the minimum number implied by @var{m}" to
> make it clearer that element values themselves are not implied by m?
Maybe expand to "If @var{m} specifies a scalable vector mode,
then operand 1 only specifies the minimum number of elements implied
by @var{m} and elements beyond are zero initialized."? I was wanting to
somehow phrase that operand 1 encodes only lower_bound number of
elements for VLA modes.
>
>
> > Otherwise LGTM. Can you split this and the expr.cc hunk with the
> > comments addressed
> > out from the series?
> I can combine them as a single patch if you prefer.
Yes please.
> Thanks,
> --
> Christopher Bazley
> Staff Software Engineer, GNU Tools Team.
> Arm Ltd, 110 Fulbourn Road, Cambridge, CB1 9NJ, UK.
> http://www.arm.com/
