[PATCH v2] powerpc: slightly improve cache helpers
segher at kernel.crashing.org
Sat Jul 20 01:23:03 AEST 2019
On Thu, Jul 18, 2019 at 08:24:56PM -0700, Nathan Chancellor wrote:
> On Mon, Jul 08, 2019 at 11:49:52PM -0700, Nathan Chancellor wrote:
> > On Tue, Jul 09, 2019 at 07:04:43AM +0200, Christophe Leroy wrote:
> > > Is that a Clang bug ?
> > No idea, it happens with clang-8 and clang-9 though (pretty sure there
> > were fixes for PowerPC in clang-8 so something before it probably won't
> > work but I haven't tried).
> > >
> > > Do you have a disassembly of the code both with and without this patch in
> > > order to compare ?
> > I can give you whatever disassembly you want (or I can upload the raw
> > files if that is easier).
> What disassembly/files did you need to start taking a look at this? I
> can upload/send whatever you need.
A before and after of *only this patch*. And then look at what changed;
it maybe be obvious what is the problem to you, as well, so look at it
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