[Bug other/50925] [4.7 Regression][avr] ICE at spill_failure, at reload1.c:2118

[law at redhat dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=50925

--- Comment #10 from Jeffrey A. Law <law at redhat dot com> 2011-12-05 18:53:34 UTC ---
Other ports seem to work OK when the requirement for a frame pointer is
conditional on the size of the stack.  It's not the most common case, but it
does come up in several ports.

I still haven't seen a good description of why the particular insn needs
reloads.  Not everyone is familiar with the guts of the avr port.

I'd then be looking at init_caller_save to determine why it thinks a particular
address is OK for a caller-save, when in fact it isn't OK.

jeff