From: "Maciej W. Rozycki" <macro@linux-mips.org>
To: Paul Koning <paulkoning@comcast.net>
Cc: Jeff Law <law@redhat.com>, GCC Patches <gcc-patches@gcc.gnu.org>
Subject: Re: [PATCH] genemit: Handle `const_double_zero' rtx
Date: Wed, 16 Dec 2020 20:43:01 +0000 (GMT) [thread overview]
Message-ID: <alpine.LFD.2.21.2012162003550.2104409@eddie.linux-mips.org> (raw)
In-Reply-To: <3488E35A-C026-4E88-9429-CE6FD7B9363A@comcast.net>
On Wed, 16 Dec 2020, Paul Koning wrote:
> > NB the PDP-11 pieces affected here and tripping this assertion are I
> > believe dead code, as these insns are only ever produced by splitters and
> > do not appear to be referred by their names.
>
> Right; I gave them names for documentation purposes, after all insns are
> allowed to have names whether or not the name is referenced or is a
> required name for RTL generation.
You can use `*foo' however to have it printed in dumps and be able to
refer to it otherwise, while not producing callable `gen_foo' entrypoints.
It is not a feature GCC has always had, but it's been around for a little
while already.
Maciej
prev parent reply other threads:[~2020-12-16 20:43 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-12-15 20:38 Maciej W. Rozycki
2020-12-15 23:20 ` Jeff Law
2020-12-16 11:35 ` Maciej W. Rozycki
2020-12-16 12:28 ` Richard Sandiford
2020-12-16 13:30 ` Maciej W. Rozycki
2021-01-05 23:51 ` Maciej W. Rozycki
2021-01-06 16:34 ` Richard Sandiford
2021-01-08 2:12 ` Maciej W. Rozycki
2020-12-16 19:19 ` Paul Koning
2020-12-16 20:43 ` Maciej W. Rozycki [this message]
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