From: Richard Henderson
Date: Sun, 19 Jun 2011 16:19:41 -0700
> * reg-notes.def (REG_CFA_WINDOW_SAVE): New.
> * dwarf2out.c (dwarf2out_frame_debug): Handle it.
> (dwarf2out_frame_debug_cfa_window_save): Rename from
> dwarf2out_window_save; make static.
> * tree.h (dw
> I've tested this via cross-compile and the unwind info is unchanged before
> and after. However, I'll hold off checking it in for the moment until it
> has had a chance to go through a true bootstrap cycle. Dave, might you
> have a moment to do that?
Note that you have SPARC/Linux machines in
Sparc is one of three users of a dwarf2out hook that I'd like to eliminate.
The other two users (arm and ia64) should be able to transition directly to
existing REG_CFA_* notes, and I will take care of those shortly. Sparc is
the only user of DW_CFA_GNU_window_save, which means we need a correspo
