http://gcc.gnu.org/bugzilla/show_bug.cgi?id=48053
--- Comment #2 from Peter Bergner <bergner at gcc dot gnu.org> 2011-03-11 17:08:33 UTC --- Created attachment 23633 --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=23633 A related but different test case. Attached is another test case that tweaks a similar bug that Pat's test case exposes. In this case, it is not dependent on Mike's patch. The problem for both starts in rs6000_expand_vector_init(). In Pat's test case, we attempt to load the same constant into each V2DFmode half, with this test case, we attempt to load different values, one being a constant and the other a var which leads to a different ICE: pr48053-2.c: In function ‘foo’: pr48053-2.c:29:14: internal compiler error: in int_mode_for_mode, at stor-layout.c:490 Please submit a full bug report, with preprocessed source if appropriate. See <http://gcc.gnu.org/bugs.html> for instructions.