From: Jeff Law <jeffreyalaw@gmail.com>
To: gcc-patches@gcc.gnu.org
Subject: Re: [PATCH] Ignore debug insns with CONCAT and CONCATN for insn scheduling
Date: Wed, 7 Sep 2022 11:02:56 -0600 [thread overview]
Message-ID: <af9cf3e2-11a5-e6c1-1738-b87a53e0ce95@gmail.com> (raw)
In-Reply-To: <20220902143639.2464892-1-hjl.tools@gmail.com>
On 9/2/2022 8:36 AM, H.J. Lu via Gcc-patches wrote:
> CONCAT and CONCATN never appear in the insn chain. They are only used
> in debug insn. Ignore debug insns with CONCAT and CONCATN for insn
> scheduling to avoid different insn orders with and without debug insn.
>
> gcc/
>
> PR rtl-optimization/106746
> * sched-deps.cc (sched_analyze_2): Ignore debug insns with CONCAT
> and CONCATN.
Shouldn't we be ignoring everything in a debug insn? I don't see why
CONCAT/CONCATN are special here.
jeff
next prev parent reply other threads:[~2022-09-07 17:02 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-09-02 14:36 H.J. Lu
2022-09-07 17:02 ` Jeff Law [this message]
2022-09-21 22:11 ` H.J. Lu
2022-09-24 20:37 ` Jeff Law
2022-09-26 19:52 ` H.J. Lu
2022-09-26 23:23 ` Jeff Law
2022-09-26 23:43 ` Jakub Jelinek
2022-09-27 1:40 ` Jeff Law
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