From: Richard Biener <richard.guenther@gmail.com>
To: Eric Botcazou <botcazou@adacore.com>
Cc: gcc-patches@gcc.gnu.org
Subject: Re: [PATCH] Fix thinko in operator_bitwise_xor::op1_range
Date: Fri, 25 Nov 2022 10:35:57 +0100 [thread overview]
Message-ID: <CAFiYyc30kjj+b4wfenScq2DWk7Ja2OEOvC_4FZSjk=fgqdEDOw@mail.gmail.com> (raw)
In-Reply-To: <12106563.O9o76ZdvQC@fomalhaut>
On Fri, Nov 25, 2022 at 10:22 AM Eric Botcazou via Gcc-patches
<gcc-patches@gcc.gnu.org> wrote:
>
> Hi,
>
> there is a thinko in the op1_range method of ranger's operator_bitwise_xor
> class in a boolean context: if the result is known to be true, it may infer
> than a specific operand is false without any basis.
>
> Tested on x86-64/Linux, OK for mainline, 12 and 11 branches?
OK.
Thanks,
Richard.
>
> 2022-11-25 Eric Botcazou <ebotcazou@adacore.com>
>
> * range-op.cc (operator_bitwise_xor::op1_range): Fix thinko.
>
>
> 2022-11-25 Eric Botcazou <ebotcazou@adacore.com>
>
> * gnat.dg/opt100.adb: New test.
> * gnat.dg/opt100_pkg.adb, gnat.dg/opt100_pkg.ads: New helper.
>
> --
> Eric Botcazou
prev parent reply other threads:[~2022-11-25 9:36 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-11-25 9:21 Eric Botcazou
2022-11-25 9:35 ` Richard Biener [this message]
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