From: Andreas Krebbel <krebbel@linux.ibm.com>
To: Ilya Leoshkevich <iii@linux.ibm.com>,
Andreas Krebbel <krebbel@gcc.gnu.org>
Cc: gcc-patches@gcc.gnu.org, Joern Rennecke <joern.rennecke@embecosm.com>
Subject: Re: [PATCH] IBM Z: Remove match_scratch workaround
Date: Wed, 2 Jun 2021 08:56:18 +0200 [thread overview]
Message-ID: <fd38421c-0024-5331-1013-2e06b71a233f@linux.ibm.com> (raw)
In-Reply-To: <20210602022158.3147550-1-iii@linux.ibm.com>
On 6/2/21 4:21 AM, Ilya Leoshkevich wrote:
> Bootstrapped and regtested on s390x-redhat-linux. Ok for master?
>
>
>
> Since commit dd1ef00c45ba ("Fix bug in the define_subst handling that
> made match_scratch unusable for multi-alternative patterns.") the
> workaround for that bug in *ashrdi3_31<setcc><cconly> is not only no
> longer necessary, but actually breaks the build.
>
> Get rid of it by using only one alternative in (match_scratch). It
> will be replicated as many times as needed in order to match the
> pattern with which (define_subst) is used.
>
> gcc/ChangeLog:
>
> * config/s390/s390.md(*ashrdi3_31<setcc><cconly>): Use a single
> constraint.
> * config/s390/subst.md(cconly_subst): Use a single constraint
> in (match_scratch).
>
> gcc/testsuite/ChangeLog:
>
> * gcc.target/s390/ashr.c: New test.
Ok. Thanks!
Andreas
prev parent reply other threads:[~2021-06-02 6:56 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-06-02 2:21 Ilya Leoshkevich
2021-06-02 5:18 ` Jeff Law
2021-06-02 6:56 ` Andreas Krebbel [this message]
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