On 1 May 2014 10:02, Alex Bennée <alex.ben...@linaro.org> wrote: > > Edgar E. Iglesias <edgar.igles...@gmail.com> writes: > >> From: "Edgar E. Iglesias" <edgar.igles...@xilinx.com> >> >> For linked branches, updates to the link register happen >> conceptually after the read of the branch target register. >> >> Signed-off-by: Edgar E. Iglesias <edgar.igles...@xilinx.com> > > I'm trying to think of a case where this could actually cause a problem > but I can't. However from a clarity/correctness point of view it's > better.
Well, we actually misexecute "BLR LR" otherwise, right? That's probably not very common but there's no reason it might not occur (eg call to a function pointer from a function where LR has been saved on entry and is free for use as a generic tempreg). Cc: qemu-sta...@nongnu.org thanks -- PMM
