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From: David Malcolm <dmalcolm@redhat.com>
To: Tim Lange <mail@tim-lange.me>
Cc: gcc-patches@gcc.gnu.org
Subject: Re: [PATCH v2] analyzer: support for symbolic values in the out-of-bounds checker [PR106625]
Date: Wed, 07 Sep 2022 17:13:22 -0400	[thread overview]
Message-ID: <20f04485e335a7d56019d5301d5c3a6b76ef40e9.camel@redhat.com> (raw)
In-Reply-To: <20220907155107.31300-1-mail@tim-lange.me>

On Wed, 2022-09-07 at 17:51 +0200, Tim Lange wrote:
> Hi Dave,
> 
> while re-reading that patch, I noticed a small mistake. I accidently
> did
> not move the op == PLUS_EXPR or MULT_EXPR guard in
> symbolic_greater_than
> when implementing the "eliminate operands on both sides" feature,
> which
> lead to the old patch also eliminating operands on both sides if the
> operator decreases the value, which is obviously wrong.
> 
> I moved the guard outside and added test coverage for this in
> symbolic-gt-1.c. The patch passed the regrtests with the fix
> included.
> 
> I assume it is still okay for trunk?

Yes it is - thanks for the updated patch.

Dave


      reply	other threads:[~2022-09-07 21:13 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-09-05 21:16 [PATCH][WIP?] " Tim Lange
2022-09-06  2:22 ` David Malcolm
2022-09-07 15:51   ` [PATCH v2] " Tim Lange
2022-09-07 21:13     ` David Malcolm [this message]

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