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Re: Local update flow info assumes valid situations are illegal
On Jan 4, 2001, Richard Henderson <rth@redhat.com> wrote:
> On Thu, Jan 04, 2001 at 09:15:37PM -0200, Alexandre Oliva wrote:
>> It happens to be the frame pointer, in this case.
> In which case it _isn't_ dead.
Why not? The bb (and the function) ended with a call to a noreturn
function. The reg_set at the end of the bb was empty. There was no
use of the frame pointer remaining. So why isn't it dead?
> So who, again, thought that it went dead (or came live)
> somewhere?
It was sched that called update_life_info in this case.
--
Alexandre Oliva Enjoy Guarana', see http://www.ic.unicamp.br/~oliva/
Red Hat GCC Developer aoliva@{cygnus.com, redhat.com}
CS PhD student at IC-Unicamp oliva@{lsd.ic.unicamp.br, gnu.org}
Free Software Evangelist *Please* write to mailing lists, not to me