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Re: Barrier stupidity
- From: Mike Stump <mrs at apple dot com>
- To: Jan Hubicka <jh at suse dot cz>
- Cc: gcc-patches at gcc dot gnu dot org
- Date: Wed, 21 Jan 2004 11:32:06 -0800
- Subject: Re: Barrier stupidity
On Wednesday, January 21, 2004, at 09:41 AM, Jan Hubicka wrote:
I know that barrier ought to die, but why we allocate more than twice
as
memory as needed? Worth saving 1% of memory overhead, even tought it
will disappear with my next patch.
Please review the thread surrounding this change:
2002-08-14 Richard Henderson <rth@redhat.com>
* ggc-page.c (RTL_SIZE): New.
(extra_order_size_table): Add specializations for 2 and 10 rtl slots.
* rtl.def (BARRIER, NOTE): Pad to 9 slots.
and see if your patch introduces a speed regression. If you want, you
can annotate the reason why it is the way it is... so that the next
person to stumble across it understand why it is that way.