On 5/3/21 10:41 AM, Linus Torvalds wrote:
> On Fri, Apr 30, 2021 at 1:46 PM Vineet Gupta
> wrote:
>> I've hit a mainline gcc 10.2 (also gcc 9.3) bug which triggers at -O3
>> causing wrong codegen.
> So it does seem to be a gcc bug or at least mis-feature where gcc gets
> the aliasing decision wro
On Fri, Apr 30, 2021 at 1:46 PM Vineet Gupta wrote:
>
> I've hit a mainline gcc 10.2 (also gcc 9.3) bug which triggers at -O3
> causing wrong codegen.
So it does seem to be a gcc bug or at least mis-feature where gcc gets
the aliasing decision wrong when vectorizing the code.
That said, the fact
On Fri, Apr 30, 2021 at 1:16 PM Niklas Schnelle wrote:
>
> From: Niklas Schnelle
>
> This is version 4 of my attempt to get rid of a clang
> -Wnull-pointer-arithmetic warning for the use of PCI_IOBASE in
> asm-generic/io.h. This was originally found on s390 but should apply to
> all platforms lea
