On Sun, Oct 13, 2024 at 2:06 PM Mattias Rönnblom
<mattias.ronnb...@ericsson.com> wrote:
>
> The macros generating the parallel test for atomic test-and-
> [set|clear|flip] functions used a 64-bit reference word when assuring
> no neighbouring bits were modified, even when generating code for the
> 32-bit version of the test.
>
> This issue causes spurious test failures on GCC 12.2.0 (the default
> compiler on for example Debian 12 "bookworm"), when optimization level
> 2 or higher are used.
>
> The test failures do not occur with GCC 11, 12.3 and 13.2.
>
> To the author, this looks like a promotion-related compiler bug in GCC
> 12.2.
>
> Fixes: 35326b61aecb ("bitops: add atomic bit operations in new API")
>
> Signed-off-by: Mattias Rönnblom <mattias.ronnb...@ericsson.com>
> Reviewed-by: Morten Brørup <m...@smartsharesystems.com>Tested-by: David Marchand <david.march...@redhat.com> Applied to fix the CI, thanks. -- David Marchand
