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From: Borislav Petkov <bp@alien8.de>
To: Richard Biener <rguenther@suse.de>
Cc: linux-toolchains@vger.kernel.org, Michael Matz <matz@suse.de>,
	lkml <linux-kernel@vger.kernel.org>
Subject: Re: older gccs and case labels producing integer constants
Date: Tue, 5 Apr 2022 12:36:58 +0200	[thread overview]
Message-ID: <YkwbygWj/C3XooMV@zn.tnic> (raw)
In-Reply-To: <onrq8p1-582o-6rs9-r682-rs9sqoq7sq6p@fhfr.qr>

On Tue, Apr 05, 2022 at 12:06:45PM +0200, Richard Biener wrote:
> Wird auch mit gcc 11 rejected.  Kanns sein dass mit gcc 7 andere
> compiler flags genommen werden?

Found it:

$ gcc -fsanitize=shift -c switch.c
switch.c: In function ‘foo’:
switch.c:10:7: error: case label does not reduce to an integer constant
       case (((0xfc08) << 16) | (0x0101)):;

$ gcc --version
gcc (SUSE Linux) 7.4.1 20190905 [gcc-7-branch revision 275407]
Copyright (C) 2017 Free Software Foundation, Inc.

Something not fully backported?

Thx.

-- 
Regards/Gruss,
    Boris.

https://people.kernel.org/tglx/notes-about-netiquette

  reply	other threads:[~2022-04-06  1:10 UTC|newest]

Thread overview: 16+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-04-05  9:50 older gccs and case labels producing integer constants Borislav Petkov
2022-04-05  9:58 ` Richard Biener
2022-04-05 10:04   ` Borislav Petkov
2022-04-05 10:06   ` Richard Biener
2022-04-05 10:36     ` Borislav Petkov [this message]
2022-04-05 10:45       ` Borislav Petkov
2022-04-05 11:41         ` Richard Biener
2022-04-07 15:16           ` Borislav Petkov
2022-04-05 11:37       ` Richard Biener
2022-04-06  9:53       ` Jakub Jelinek
2022-04-06 10:04         ` Jakub Jelinek
2022-04-05 12:23 ` Peter Zijlstra
2022-04-05 12:39   ` Michael Matz
2022-04-05 12:53     ` Richard Biener
2022-04-05 13:04       ` Borislav Petkov
2022-04-06 10:13   ` Jakub Jelinek

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