http://gcc.gnu.org/bugzilla/show_bug.cgi?id=49067
Richard Guenther <rguenth at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Known to work| |4.5.2 Known to fail| |4.5.3 --- Comment #1 from Richard Guenther <rguenth at gcc dot gnu.org> 2011-05-20 09:56:39 UTC --- I can confirm > /space/rguenther/install/gcc-4.5.3/bin/gcc -O3 -fno-strict-aliasing -S t.i /home/fcf/blender-svn/blender/source/blender/editors/space_view3d/view3d_select.c: In function 'view3d_circle_select_exec': /home/fcf/blender-svn/blender/source/blender/editors/space_view3d/view3d_select.c:2235:12: internal compiler error: in get_constraint_for_component_ref, at tree-ssa-structalias.c:3035 Please submit a full bug report, with preprocessed source if appropriate. See <http://gcc.gnu.org/bugs.html> for instructions. which is a regression from 4.5.2. So I suppose Ubuntu has backported some patches. Reducing.