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[Bug other/50925] [4.7 Regression][avr] ICE at spill_failure, at reload1.c:2118
- From: "law at redhat dot com" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: Mon, 05 Dec 2011 18:53:34 +0000
- Subject: [Bug other/50925] [4.7 Regression][avr] ICE at spill_failure, at reload1.c:2118
- Auto-submitted: auto-generated
- References: <bug-50925-4@http.gcc.gnu.org/bugzilla/>
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