From: Gerald Pfeifer <gerald@pfeifer.com>
To: Steve Kargl <sgk@troutmask.apl.washington.edu>
Cc: "H.J. Lu" <hjl.tools@gmail.com>,
Paul Richard Thomas <paul.richard.thomas@gmail.com>,
fortran@gcc.gnu.org, gcc-patches@gcc.gnu.org
Subject: Re: [PATCH] (Partial) Implementation of simplificaiton of CSHIFT
Date: Thu, 31 Dec 2015 14:00:00 -0000 [thread overview]
Message-ID: <alpine.LSU.2.20.1512291725490.5144@anthias> (raw)
In-Reply-To: <20151121200735.GA55464@troutmask.apl.washington.edu>
On Sat, 21 Nov 2015, Steve Kargl wrote:
> 2015-11-21 Steven G. Kargl <kargl@gcc.gnu.org>
>
> * simplify.c (gfc_simplify_cshift): Work around bootstrap issues
> due to inappropriate warning options.
> Index: simplify.c
> ===================================================================
> + /* GCC bootstrap is too stupid to realize that the above code for dm
> + is correct. First, dim can be specified for a rank 1 array. It is
> + not needed in this nor used here. Second, the code is simply waiting
> + for someone to implement rank > 1 simplification. For now, add a
> + pessimization to the code that has a zero valid reason to be here. */
> + if (dm > array->rank)
> + gcc_unreachable ();
I'm not sure this comment is appropriate as is. At a minimum, it
should list the version of GCC this was introduced for/with. So,
something like
"As of GCC 6, when bootstrapping we do not realize that..."
Gerald
next prev parent reply other threads:[~2015-12-31 14:00 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-11-20 0:58 Steve Kargl
2015-11-20 1:31 ` Steve Kargl
2015-11-20 3:16 ` Steve Kargl
2015-11-20 20:09 ` Steve Kargl
2015-11-21 10:41 ` Paul Richard Thomas
2015-11-21 16:27 ` Steve Kargl
2015-11-21 18:07 ` H.J. Lu
2015-11-21 18:20 ` Steve Kargl
2015-11-21 19:19 ` H.J. Lu
2015-11-21 19:26 ` Steve Kargl
2015-11-21 20:07 ` Steve Kargl
2015-11-21 22:26 ` Eric Botcazou
2015-11-21 22:39 ` Steve Kargl
2015-12-31 14:00 ` Gerald Pfeifer [this message]
2015-12-31 16:13 ` Steve Kargl
2015-11-21 18:23 ` Tim Prince
2015-11-21 20:22 Dominique d'Humières
2015-11-21 20:30 ` Steve Kargl
2015-11-22 8:51 ` Dominique d'Humières
2015-11-22 16:21 ` Steve Kargl
2015-11-22 18:06 ` Dominique d'Humières
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