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Date:   Fri, 1 May 2020 19:26:16 +0200
From:   Peter Zijlstra <>
To:     Arnd Bergmann <>
Cc:     Josh Poimboeuf <>,
        the arch/x86 maintainers <>,
        Linux Kernel Mailing List <>
Subject: Re: Remaining randconfig objtool warnings, linux-next-20200428

On Fri, May 01, 2020 at 07:21:31PM +0200, Arnd Bergmann wrote:
> On Thu, Apr 30, 2020 at 4:05 PM Arnd Bergmann <> wrote:
> it gets into undefined behavior and stops emitting code after the call to

> Do we consider this expected behavior on gcc's side, or is it something
> that should not happen and needs a gcc bug report?

When it hits UB it is of course free to do whatever it damn well
pleases, but just stopping code gen seems a little extreme, at least
issue a WARN that something is up or so.

Not sure how the GCC folks feel about this though.

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