On Wed, Feb 15, 2017 at 11:34:26AM +1030, Alan Modra wrote:
> On Tue, Feb 14, 2017 at 06:38:40PM -0600, Segher Boessenkool wrote:
> > On Wed, Feb 15, 2017 at 10:36:02AM +1030, Alan Modra wrote:
> > > Since we've been talking about obsoleting cpu support, how about
> > > getting rid of -many in ASM_CPU_SPEC for gcc-8?
> >
> > Sure, but that doesn't need advance warning to the users, does it?
>
> Probably not.
>
> > Things worked before and stay working, nothing user-visible?
>
> Except for bad user asm() that ought to be true. Oh, and gcc bugs
> like emitting power9 insns when -mcpu=power8. You'd have some chance
> that the assembler would complain rather than getting sigill at
> run-time.
What does gcc do when using target attribute, where one function is
power7, another power9, then another power8?
Jakub
