From: Michael Matz <matz@suse.de>
To: Jakub Jelinek <jakub@redhat.com>
Cc: Richard Biener <rguenther@suse.de>, gcc-patches@gcc.gnu.org
Subject: Re: [PATCH] tree-optimization/114074 - CHREC multiplication and undefined overflow
Date: Mon, 26 Feb 2024 16:51:08 +0100 (CET) [thread overview]
Message-ID: <12937df3-5d06-dd50-9ebf-254a6e952080@suse.de> (raw)
In-Reply-To: <ZdykJG0lg6+nR33y@tucnak>
Hello,
On Mon, 26 Feb 2024, Jakub Jelinek wrote:
> > Will update the patch, I think any improvement should be done
> > to get_range_pos_neg (it's a bit odd in behavior for unsigned
> > but I have only signed things incoming).
>
> For unsigned if it always returned 1, it would be quite useless, there would
> be no point for the caller to call it in that case.
Which seems to make sense for a function called ...pos_neg on unsigned
types. I would expect calling it to be useless and always return "yep,
non-negative, why did you ask?".
Ciao,
Michael.
next prev parent reply other threads:[~2024-02-26 15:51 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <83476.124022609150401789@us-mta-131.us.mimecast.lan>
2024-02-26 14:22 ` Jakub Jelinek
2024-02-26 14:29 ` Richard Biener
2024-02-26 14:45 ` Jakub Jelinek
2024-02-26 15:51 ` Michael Matz [this message]
2024-02-26 15:56 ` Jakub Jelinek
[not found] <20240226141510.C27103858C33@sourceware.org>
2024-02-26 16:02 ` Jakub Jelinek
2024-02-26 14:15 Richard Biener
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