On Fri, Jul 19, 2019 at 10:23:03AM -0500, Segher Boessenkool wrote: > 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 > yourself first? > > > Segher
Thanks, I will go ahead and disassemble the full kernel given that those helpers are everywhere and see what I can find. I'll reach out again if I can't come up with anything. Thanks for the advice! Nathan
