http://gcc.gnu.org/bugzilla/show_bug.cgi?id=49487
--- Comment #3 from gandalf at winds dot org 2011-06-21 17:17:20 UTC --- (In reply to comment #1) > (In reply to comment #0) > > Compiling the following function triggers an internal compiler error in (at > > least) GCC versions 4.2, 4.3, 4.5 and the latest 4.7.0-20110620: > > Could you be a bit more specific on the version numbers for 4.2, 4.3, and 4.5? > > I've just tried building on 4.3.3 (WinAVR 20100110) and it compiled > successfully for -O[0123s]. > > <snip> > > This was compiled using a cross-compiler on an x86_64 system as outlined > > below: > > Could you try using a 32-bit host? Sorry about being vague on the previous GCC versions--I didn't think it mattered that much. I very well could have been using patches from Atmel back then (it was a while ago). I cannot reproduce the problem today on vanilla GCC 4.3.5 and 4.4.6. However I am able to reproduce the problem on 4.5.3 right now too (on a 64-bit host).
