Hi Jozef, On Thu, Mar 26, 2020 at 12:33:38PM +0000, Jozef Lawrynowicz wrote: > In some cases, I can fix the CFA offset by marking these epilogue insns as > frame_related anyway, and adding reg notes which describe the stack pointer > operations. For some other epilogue insns, marking them frame_related results > in > an ICE, which I'm assuming comes back to the fact that epilogue insns > shouldn't > be marked frame related.
> What is the standard way for updating the CFA offset in the epilogue? What you already say you do: add notes, and often frame_related is set as well. I agree that shouldn't be done, but it often is harmless. You need reg_notes for more than just the stack updates: importantly, also for the restores of any saved register. Segher
