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From: Uros Bizjak <ubizjak@gmail.com>
Date: Sat, 9 Jul 2022 12:09:45 +0200
Message-ID: <CAFULd4Zj0YuBCrRkF2XDpZEGTwGoBBpTvNZ2S9DDDGh1pWT-Jw@mail.gmail.com>
Subject: Re: [gcc12 backport] PR target/105930: Split *xordi3_doubleword after
 reload on x86.
To: Roger Sayle <roger@nextmovesoftware.com>
Cc: "gcc-patches@gcc.gnu.org" <gcc-patches@gcc.gnu.org>,
 Richard Biener <rguenther@suse.de>
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On Sat, Jul 9, 2022 at 11:26 AM Roger Sayle <roger@nextmovesoftware.com> wr=
ote:
>
>
> This is a backport of the fix for PR target/105930 from mainline to the
> gcc12 release branch.  This patch has been retested against the gcc12
> branch on x86_64-pc-linux-gnu with make bootstrap and make -k check,
> both with and without --target_board=3Dunix{-m32} with no new failures.
> Ok for the gcc12 branch?
>
>
> 2022-07-09  Roger Sayle  <roger@nextmovesoftware.com>
>             Uro=C5=A1 Bizjak  <ubizjak@gmail.com>
>
> gcc/ChangeLog
>         PR target/105930
>         * config/i386/i386.md (*<any_or>di3_doubleword): Split after
>         reload.  Use rtx_equal_p to avoid creating memory-to-memory moves=
,
>         and emit NOTE_INSN_DELETED if operand[2] is zero (i.e. with -O0).

OK.

Thanks,
Uros.

>
> Thanks in advance,
> Roger
> --
>