linux-kernel - Re: {standard input}:3978: Error: value 178 out of range

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Message-ID: <87wndoalyx.fsf@igel.home>
Date:   Fri, 10 Jun 2022 11:47:50 +0200
From:   Andreas Schwab <schwab@...ux-m68k.org>
To:     Geert Uytterhoeven <geert@...ux-m68k.org>
Cc:     kernel test robot <lkp@...el.com>,
        Sumit Saxena <sumit.saxena@...adcom.com>,
        kbuild-all@...ts.01.org,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        "Martin K. Petersen" <martin.petersen@...cle.com>,
        Himanshu Madhani <himanshu.madhani@...cle.com>,
        linux-m68k <linux-m68k@...ts.linux-m68k.org>
Subject: Re: {standard input}:3978: Error: value 178 out of range

On Jun 10 2022, Geert Uytterhoeven wrote:

> The offending instruction is:
>
>     | drivers/scsi/mpi3mr/mpi3mr_fw.c:299:  switch (host_tag) {
>             mvz.w %d2,%d0   | tmp160, host_tag
>             mov3q.l #5,%d1  |,
>             cmp.l %d0,%d1   | host_tag,
>             jcs .L154               |
>             tst.w %d6       | host_tag
>             jeq .L133               |
>             subq.l #2,%d2   |, tmp238
>             mvz.w %d2,%d2   | tmp238, tmp240
>             mov3q.l #3,%d0  |,
>             cmp.l %d2,%d0   | tmp240,
>             jcs .L140               |
>             add.l %d2,%d2   | tmp244
>>>>         move.w .L155(%pc,%d2.l),%d0     |, tmp245
>             jra .L186               |
>
> And the table L155 is just too far from the above instruction, so
> the displacement is too large, causing the failure.
>
> Looks like a compiler bug to me?

Yes, it's https://gcc.gnu.org/bugzilla/show_bug.cgi?id=104028.

-- 
Andreas Schwab, schwab@...ux-m68k.org
GPG Key fingerprint = 7578 EB47 D4E5 4D69 2510  2552 DF73 E780 A9DA AEC1
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