On Thu, Jun 25, 2020 at 12:18:42PM -0500, Segher Boessenkool wrote:
> Hi!
> 
> On Mon, Jun 01, 2020 at 03:53:42PM -0400, Michael Meissner wrote:
> > Test that stack protection generates prefixed stack instructions if you are
> > using large stack frame for -mcpu=future.
> > 
> > 2020-06-01  Michael Meissner  <meiss...@linux.ibm.com>
> > 
> >     * gcc.target/powerpc/prefix-stack-protect.c: New test.
> 
> > +/* { dg-do compile } */
> > +/* { dg-require-effective-target powerpc_prefixed_addr } */
> 
> Is this test necessary anymore, does -mcpu=power10 not guarantee that?

I believe the test is necessary to prevent regressions.  As I said in the test,
we stumbled on this problem when building GLIBC with -mcpu=future/power10.

> Okay for trunk with that looked at.  Thanks!

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

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