On Sat, Oct 24, 2020 at 02:59:34PM +1030, Alan Modra wrote:
> On Fri, Oct 23, 2020 at 04:06:57PM -0500, Segher Boessenkool wrote:
> > On Fri, Oct 23, 2020 at 09:41:30AM +1030, Alan Modra wrote:
> > > On Thu, Oct 22, 2020 at 11:03:14AM -0500, Segher Boessenkool wrote:
> > > > On Thu, Oct 22, 2020 at 08:58:10AM -0700, Carl Love wrote:
> > > > > OK, looks like VSX_MM_SUFFIX doesn't exist anymore.  Don't know what
> > > > > happed to it.  Thanks.
> > > > 
> > > > It never existed on trunk.  Please always regstrap patches on trunk
> > > > before committing.  It feels unnecessary at times, but now you know
> > > > why :-)
> > > 
> > > Regression testing wouldn't have caught the problem, unless Carl had
> > > done so on power10.
> > 
> > "regstrap" is "bootstrap + regression check".  It won't bootstrap (won't
> > cross build even afaics?)
> 
> Those instructions aren't generated, we don't see them anywhere on a
> power10 all-lang bootstrap except in one testcase designed to exercise
> them.

But that is completely not relevant :-)

If you use a macro that doesn't exist, the compiler simply does not
build!


Segher

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