Re: Valgrind-3.22.0.RC2 is available for testing

Andreas Arnez via Valgrind-developers <valgrind-developers-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org> Fri, 27 Oct 2023 16:02:19 +0200

Newsgroups	gmane.comp.debugging.valgrind.devel,gmane.comp.debugging.valgrind
Organization	IBM Deutschland Research & Development GmbH
Message-ID	<[email protected]>

On Fri, Oct 27 2023, Mark Wielaard wrote:

> = On Fedora 38 s390x
>
> == 842 tests, 1 stderr failure, 0 stdout failures, 0 stderrB failure, 0 stdoutB failure, 0 post failures ==
> memcheck/tests/vbit-test/vbit-test       (stderr)
>
> --- vbit-test.stderr.exp		 2022-02-09 22:47:30.491170867 +0000
> +++ vbit-test.stderr.out		 2023-10-26 22:51:38.544254194 +0000
> @@ -0,0 +1,3 @@
> +Conditional jump or move depends on uninitialised value(s)
> +   ...
> +
>
> I believe I saw this with 3.21.0 too.

Right.  It's a known issue caused by a memcheck-unfriendly compiler
decision.  See

  https://bugs.kde.org/show_bug.cgi?id=417993

There's probably a way of fixing this in ir_opt.c.  Would someone be
interested in reviewing a patch?

--
Andreas